diff --git a/dist/ethers-wallet.js b/dist/ethers-wallet.js
index 5ff04dd45..d78092ab2 100644
--- a/dist/ethers-wallet.js
+++ b/dist/ethers-wallet.js
@@ -1582,6 +1582,7 @@ var utils = require('./utils.js');
 var secp256k1 = new (elliptic.ec)('secp256k1');
 
 
+
 function SigningKey(privateKey) {
     if (!(this instanceof SigningKey)) { throw new Error('missing new'); }
 
@@ -1603,6 +1604,11 @@ function SigningKey(privateKey) {
     });
 }
 
+utils.defineProperty(SigningKey, 'recover', function(digest, r, s, recoveryParam) {
+    var publicKey = secp256k1.recoverPubKey(digest, {r: r, s: s}, recoveryParam);
+    publicKey = (new Buffer(publicKey.encode('hex', false), 'hex')).slice(1);
+    return utils.getAddress(utils.sha3(publicKey).slice(12).toString('hex'));
+});
 
 module.exports = SigningKey;
 
@@ -2208,6 +2214,28 @@ function Wallet(privateKey, provider) {
     });
 }
 
+utils.defineProperty(Wallet, 'parseTransaction', function(rawTransaction) {
+    rawTransaction = utils.hexOrBuffer(rawTransaction, 'rawTransaction');
+    var signedTransaction = rlp.decode(rawTransaction);
+
+    var raw = [];
+
+    var transaction = {};
+    transactionFields.forEach(function(fieldInfo, index) {
+        transaction[fieldInfo.name] = signedTransaction[index];
+        raw.push(signedTransaction[index]);
+    });
+
+    transaction.v = signedTransaction[6];
+    transaction.r = signedTransaction[7];
+    transaction.s = signedTransaction[8];
+
+    var digest = utils.sha3(rlp.encode(raw));
+    transaction.from = SigningKey.recover(digest, transaction.r, transaction.s, transaction.v[0] - 27);
+
+    return transaction;
+});
+
 utils.defineProperty(Wallet.prototype, 'getBalance', function(blockNumber) {
     var provider = this._provider;
 
diff --git a/dist/ethers-wallet.min.js b/dist/ethers-wallet.min.js
index a19640b14..e440b1e12 100644
--- a/dist/ethers-wallet.min.js
+++ b/dist/ethers-wallet.min.js
@@ -1,5 +1,5 @@
-!function(a){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=a();else if("function"==typeof define&&define.amd)define([],a);else{var b;b="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,b.Wallet=a()}}(function(){var a;return function b(a,c,d){function e(g,h){if(!c[g]){if(!a[g]){var i="function"==typeof require&&require;if(!h&&i)return i(g,!0);if(f)return f(g,!0);var j=new Error("Cannot find module '"+g+"'");throw j.code="MODULE_NOT_FOUND",j}var k=c[g]={exports:{}};a[g][0].call(k.exports,function(b){var c=a[g][1][b];return e(c?c:b)},k,k.exports,b,a,c,d)}return c[g].exports}for(var f="function"==typeof require&&require,g=0;g<d.length;g++)e(d[g]);return e}({1:[function(a,b,c){(function(c){"use strict";var d=a("scrypt-js"),e=(a("./lib/contract.js"),a("./lib/providers.js")),f=a("./lib/secret-storage.js"),g=a("./lib/randomish.js"),h=(a("./lib/signing-key.js"),a("./lib/wallet.js")),i=a("./lib/units.js"),j=a("./lib/utils.js"),k=j.BN,l={};j.defineProperty(h,"utils",l),j.defineProperty(l,"BN",k),j.defineProperty(l,"Buffer",c),j.defineProperty(l,"sha3",j.sha3),j.defineProperty(l,"sha256",j.sha256),j.defineProperty(l,"getContractAddress",j.getContractAddress),b.exports=h,j.defineProperty(h,"etherSymbol","𝝣"),j.defineProperty(h,"formatEther",i.formatEther),j.defineProperty(h,"parseEther",i.parseEther),j.defineProperty(h,"getAddress",j.getAddress),j.defineProperty(h,"getIcapAddress",j.getIcapAddress),j.defineProperty(h,"isCrowdsaleWallet",f.isCrowdsaleWallet),j.defineProperty(h,"isValidWallet",f.isValidWallet),j.defineProperty(h,"decryptCrowdsale",function(a,b){return new h(f.decryptCrowdsale(a,b))}),j.defineProperty(h,"decrypt",function(a,b,c){if(c&&"function"!=typeof c)throw new Error("invalid 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d(a);return g.getRandomValues(b),b}var f=a("./utils.js"),g=c.crypto||c.msCrypto;g&&g.getRandomValues?console.log("Found strong random number source"):(console.log("WARNING: Missing strong random number source; using weak randomBytes"),g={getRandomValues:function(a){for(var b=0;b<buffer.length;b++)buffer[b]=parseInt(256*Math.random());return buffer},_weakCrypto:!0}),g._weakCrypto===!0&&f.defineProperty(e,"_weakCrypto",!0),b.exports=e}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer)},{"./utils.js":10,buffer:41}],3:[function(a,b,c){"use strict";try{b.exports.XMLHttpRequest=XMLHttpRequest}catch(d){console.log("Warning: XMLHttpRequest is not defined"),b.exports.XMLHttpRequest=null}},{}],4:[function(a,b,c){(function(c){"use strict";function d(a,b,c){var d=JSON.stringify(c);Object.defineProperty(a,b,{enumerable:!0,get:function(){return JSON.parse(d)}})}function e(a,b){if(!Array.isArray(a))throw new 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this._send(c,k)}),s.defineProperty(p.prototype,"getTransactionCount",function(a,b){a=s.getAddress(a),b=g(b);var c="module=proxy&action=eth_getTransactionCount&address="+a+"&tag="+b;return this._send(c,m)}),s.defineProperty(p.prototype,"getGasPrice",function(){var a="module=proxy&action=eth_gasPrice";return this._send(a,l)}),s.defineProperty(p.prototype,"sendTransaction",function(a){if(!s.isHexString(a))throw new Error("invalid transaction");var b="module=proxy&action=eth_sendRawTransaction&hex="+a;return this._send(b,o)}),s.defineProperty(p.prototype,"call",function(a){var b=s.getAddress(a.to),c=a.data;if(!s.isHexString(c))throw new Error("invalid data");var d="module=proxy&action=eth_call&to="+b+"&data="+c;return this._send(d,n)}),s.defineProperty(p.prototype,"estimateGas",function(a){var b=s.getAddress(a.to),c="module=proxy&action=eth_estimateGas&to="+b;return a.gasPrice&&(c+="&gasPrice="+s.hexlify(a.gasPrice)),a.gasLimit&&(c+="&gas="+s.hexlify(a.gasLimit)),a.from&&(c+="&from="+s.getAddress(a.from)),a.data&&(c+="&data="+n(a.data)),a.value&&(c+="&value="+s.hexlify(a.value)),this._send(c,l)}),s.defineProperty(u,"isProvider",function(a){if(!a)return!1;for(var b=0;b<t;b++)if("function"!=typeof a[t[b]])return!1;return!0}),b.exports=u},{"./utils.js":10,inherits:68,xmlhttprequest:3}],6:[function(a,b,c){(function(c){"use strict";function d(){if(!(this instanceof d))throw new Error("missing new");var a=f._weakCrypto||!1,b=a?0:384;Object.defineProperty(this,"entropy",{enumerable:!0,get:function(){return b}});var h=new e.ModeOfOperation.cbc(d.randomishBytes(32),d.randomishBytes(16));g.defineProperty(this,"feedEntropy",function(d,e){if(d||(d=""),e||(e=0),parseInt(e)!=e)throw new Error("invalid expectedEntropyBits");d=(new Date).getTime()+"-"+JSON.stringify(d)+"-"+d.toString();var i=g.sha3(new c(d,"utf8"));return b+=e+(a?0:256),h.encrypt(i.slice(0,16)),h.encrypt(f(16)),h.encrypt(i.slice(0,16)),new c(h.encrypt(f(16)))}),g.defineProperty(this,"randomBytes",function(a,b){if(parseInt(a)!=a||a<=0||a>1024)throw new Error("invalid length");if(b||(b=c.concat([this.feedEntropy(),this.feedEntropy()])),!c.isBuffer(b)||32!==b.length)throw new Error("invalid key");for(var d=(new e.ModeOfOperation.cbc(b,this.feedEntropy()),new c(0));d.length<a;)d=c.concat([d,this.feedEntropy()]);return d.slice(0,a)}),this.feedEntropy()}var e=a("aes-js"),f=a("./random-bytes.js"),g=a("./utils.js");g.defineProperty(d,"randomishBytes",function(a){return f(a)}),b.exports=d}).call(this,a("buffer").Buffer)},{"./random-bytes.js":2,"./utils.js":10,"aes-js":12,buffer:41}],7:[function(a,b,c){(function(c){"use strict";function d(a,b){for(var c=a,d=b.toLowerCase().split("/"),e=0;e<d.length;e++){var f=null;for(var g in c)if(g.toLowerCase()===d[e]){f=c[g];break}if(null===f)return null;c=f}return c}var e=a("aes-js"),f=a("pbkdf2"),g=a("scrypt-js"),h=a("uuid"),i=a("./randomish.js"),j=a("./signing-key.js"),k=a("./utils.js"),l={};k.defineProperty(l,"isCrowdsaleWallet",function(a){try{var b=JSON.parse(a)}catch(c){return!1}return b.encseed&&b.ethaddr}),k.defineProperty(l,"isValidWallet",function(a){try{var b=JSON.parse(a)}catch(c){return!1}return!(!b.version||parseInt(b.version)!==b.version||3!==parseInt(b.version))}),k.defineProperty(l,"decryptCrowdsale",function(a,b){var g=JSON.parse(a),h=k.getAddress(d(g,"ethaddr")),i=new c(d(g,"encseed"),"hex");if(!i||i.length%16!==0)throw new Error("invalid encseed");for(var l=f.pbkdf2Sync(b,b,2e3,32,"sha256").slice(0,16),m=i.slice(0,16),n=i.slice(16),o=new c(0),p=new e.ModeOfOperation.cbc(l,m),q=0;q<n.length;q+=16)o=c.concat([o,new c(p.decrypt(n.slice(q,q+16)))]);var r=o[o.length-1];if(r>16||r>o.length)throw new Error("invalid password");for(var q=o.length-r;q<o.length;q++)if(o[q]!==r)throw new Error("invalid password");o=o.slice(0,o.length-r);for(var s="",q=0;q<o.length;q++)s+=String.fromCharCode(o[q]);var t=new j(k.sha3(new c(s)));if(t.address!==h)throw new Error("corrupt crowdsale wallet");return t}),k.defineProperty(l,"decrypt",function(a,b,f){if(!c.isBuffer(b))throw new Error("password must be a buffer");var h=JSON.parse(a),i=function(a,b){var f=d(h,"crypto/cipher");if("aes-128-ctr"===f){var g=new c(d(h,"crypto/cipherparams/iv"),"hex"),i=new e.Counter(g),j=new e.ModeOfOperation.ctr(a,i);return new c(j.decrypt(b))}return null},l=function(a,b){return k.sha3(c.concat([a,b]))};return new Promise(function(a,e){var m=d(h,"crypto/kdf");if(m&&"scrypt"===m.toLowerCase()){var n=new c(d(h,"crypto/kdfparams/salt"),"hex"),o=parseInt(d(h,"crypto/kdfparams/n")),p=parseInt(d(h,"crypto/kdfparams/r")),q=parseInt(d(h,"crypto/kdfparams/p"));if(!o||!p||!q)return void e(new Error("unsupported key-derivation function parameters"));if(0!==(o&o-1))return void e(new Error("unsupported key-derivation function parameter value for N"));var r=d(h,"crypto/kdfparams/dklen");if(32!==r)return void e(new Error("unsupported key-derivation derived-key length"));g(b,n,o,p,q,r,function(b,g,m){if(b)b.progress=g,e(b);else if(m){m=new c(m);var n=new c(d(h,"crypto/ciphertext"),"hex"),o=l(m.slice(16,32),n).toString("hex").toLowerCase();if(o!==d(h,"crypto/mac").toLowerCase())return void e(new Error("invalid password"));var p=i(m.slice(0,16),n);if(!p)return void e(new Error("unsupported cipher"));var q=new j(p);if(q.address!==k.getAddress(h.address))return void e(new Error("address mismatch"));f&&f(1),a(q)}else if(f)return f(g)})}else e(new Error("unsupported key-derivation function"))})}),k.defineProperty(l,"encrypt",function(a,b,d,f){if("function"!=typeof d||f||(f=d,d={}),d||(d={}),a instanceof j&&(a=a.privateKey),a=k.hexOrBuffer(a,"private key"),32!==a.length)throw new Erro("invalid private key");if(!c.isBuffer(b))throw new Error("password must be a buffer");var l=d.salt;l=l?k.hexOrBuffer(l,"salt"):(new i).randomBytes(32);var m=null;if(d.iv&&(m=k.hexOrBuffer(d.iv,"iv"),16!==m.length))throw new Error("invalid iv");var n=d.uuid;if(n&&(n=k.hexOrBuffer(n,"uuid"),16!==n.length))throw new Error("invalid uuid");var o=1<<17,p=8,q=1;return d.scrypt&&(d.scrypt.N&&(o=d.scrypt.N),d.scrypt.r&&(p=d.scrypt.r),d.scrypt.p&&(q=d.scrypt.p)),new Promise(function(d,i){g(b,l,o,p,q,64,function(b,g,r){if(b)b.progress=g,i(b);else if(r){r=new c(r);var s=r.slice(0,16),t=r.slice(16,32);m||(m=r.slice(32,48)),n||(n=r.slice(48,64));var u=new j(a).address,v=new e.Counter(m),w=new e.ModeOfOperation.ctr(s,v),x=new c(w.encrypt(a)),y=k.sha3(c.concat([t,x])),z={address:u,id:h.v4({random:n}),version:3,Crypto:{cipher:"aes-128-ctr",cipherparams:{iv:m.toString("hex")},ciphertext:x.toString("hex"),kdf:"scrypt",kdfparams:{salt:l.toString("hex"),n:o,dklen:32,p:q,r:p},mac:y.toString("hex")}};f&&f(1),d(JSON.stringify(z))}else if(f)return f(g)})})}),b.exports=l}).call(this,a("buffer").Buffer)},{"./randomish.js":6,"./signing-key.js":8,"./utils.js":10,"aes-js":12,buffer:41,pbkdf2:69,"scrypt-js":86,uuid:89}],8:[function(a,b,c){(function(c){"use strict";function d(a){if(!(this instanceof d))throw new Error("missing new");if(f.isHexString(a,32))a=f.hexOrBuffer(a);else if(!c.isBuffer(a)||32!==a.length)throw new Error("invalid private key");f.defineProperty(this,"privateKey","0x"+a.toString("hex"));var b=g.keyFromPrivate(a),e=new c(b.getPublic(!1,"hex"),"hex").slice(1),h=f.getAddress(f.sha3(e).slice(12).toString("hex"));f.defineProperty(this,"address",h),f.defineProperty(this,"signDigest",function(a){return b.sign(a,{canonical:!0})})}var e=a("elliptic"),f=a("./utils.js"),g=new e.ec("secp256k1");b.exports=d}).call(this,a("buffer").Buffer)},{"./utils.js":10,buffer:41,elliptic:13}],9:[function(a,b,c){function d(a,b){if("number"==typeof a?a=new f.BN(a):f.isHexString(a)&&(a=new f.BN(a.substring(2),16)),b||(b={}),!(a instanceof f.BN))throw new Error("invalid wei");var c=a.lt(g);c&&(a=a.mul(h));for(var d=a.mod(i).toString(10);d.length<18;)d="0"+d;b.pad||(d=d.match(/^([0-9]*[1-9]|0)(0*)/)[1]);var e=a.div(i).toString(10);b.commify&&(e=e.replace(/\B(?=(\d{3})+(?!\d))/g,","));var j=e+"."+d;return c&&(j="-"+j),j}function e(a){if("string"!=typeof a||!a.match(/^-?[0-9.]+$/))throw new Error("invalid value");var b="-"===a.substring(0,1);if(b&&(a=a.substring(1)),"."===a)throw new Error("invalid value");var c=a.split(".");if(c.length>2)throw new Error("too many decimal points");var d=c[0],e=c[1];if(d||(d="0"),e||(e="0"),e.length>18)throw new Error("too many decimal places");for(;e.length<18;)e+="0";d=new f.BN(d),e=new f.BN(e);var g=d.mul(i).add(e);return b&&(g=g.mul(h)),g}var f=a("./utils.js"),g=new f.BN(0),h=new f.BN((-1)),i=new f.BN("1000000000000000000");b.exports={formatEther:d,parseEther:e}},{"./utils.js":10}],10:[function(a,b,c){(function(c){"use strict";function d(a){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,$,_,aa,ba,ca,da,ea,fa,ga,ha,ia,ja,ka,la,ma,na,oa,pa,qa,ra,sa=!1,ta=0,ua=0,va=a.length,wa=34,xa=4*wa;for(d=0;d<50;++d)z[d]=0;b=0;do{for(y[0]=b,d=1;d<wa+1;++d)y[d]=0;for(d=ua;ta<va&&d<xa;++ta)y[d>>2]|=a[ta]<<w[3&d++];for(ua=d-xa,ta==va&&(y[d>>2]|=u[3&d],++ta),b=y[wa],ta>va&&d<xa&&(y[wa-1]|=2147483648,sa=!0),d=0;d<wa;++d)z[d]^=y[d];for(c=0;c<48;c+=2)g=z[0]^z[10]^z[20]^z[30]^z[40],h=z[1]^z[11]^z[21]^z[31]^z[41],i=z[2]^z[12]^z[22]^z[32]^z[42],j=z[3]^z[13]^z[23]^z[33]^z[43],k=z[4]^z[14]^z[24]^z[34]^z[44],l=z[5]^z[15]^z[25]^z[35]^z[45],m=z[6]^z[16]^z[26]^z[36]^z[46],n=z[7]^z[17]^z[27]^z[37]^z[47],o=z[8]^z[18]^z[28]^z[38]^z[48],p=z[9]^z[19]^z[29]^z[39]^z[49],e=o^(i<<1|j>>>31),f=p^(j<<1|i>>>31),z[0]^=e,z[1]^=f,z[10]^=e,z[11]^=f,z[20]^=e,z[21]^=f,z[30]^=e,z[31]^=f,z[40]^=e,z[41]^=f,e=g^(k<<1|l>>>31),f=h^(l<<1|k>>>31),z[2]^=e,z[3]^=f,z[12]^=e,z[13]^=f,z[22]^=e,z[23]^=f,z[32]^=e,z[33]^=f,z[42]^=e,z[43]^=f,e=i^(m<<1|n>>>31),f=j^(n<<1|m>>>31),z[4]^=e,z[5]^=f,z[14]^=e,z[15]^=f,z[24]^=e,z[25]^=f,z[34]^=e,z[35]^=f,z[44]^=e,z[45]^=f,e=k^(o<<1|p>>>31),f=l^(p<<1|o>>>31),z[6]^=e,z[7]^=f,z[16]^=e,z[17]^=f,z[26]^=e,z[27]^=f,z[36]^=e,z[37]^=f,z[46]^=e,z[47]^=f,e=m^(g<<1|h>>>31),f=n^(h<<1|g>>>31),z[8]^=e,z[9]^=f,z[18]^=e,z[19]^=f,z[28]^=e,z[29]^=f,z[38]^=e,z[39]^=f,z[48]^=e,z[49]^=f,q=z[0],r=z[1],aa=z[11]<<4|z[10]>>>28,ba=z[10]<<4|z[11]>>>28,K=z[20]<<3|z[21]>>>29,L=z[21]<<3|z[20]>>>29,oa=z[31]<<9|z[30]>>>23,pa=z[30]<<9|z[31]>>>23,Y=z[40]<<18|z[41]>>>14,Z=z[41]<<18|z[40]>>>14,Q=z[2]<<1|z[3]>>>31,R=z[3]<<1|z[2]>>>31,s=z[13]<<12|z[12]>>>20,t=z[12]<<12|z[13]>>>20,ca=z[22]<<10|z[23]>>>22,da=z[23]<<10|z[22]>>>22,M=z[33]<<13|z[32]>>>19,N=z[32]<<13|z[33]>>>19,qa=z[42]<<2|z[43]>>>30,ra=z[43]<<2|z[42]>>>30,ia=z[5]<<30|z[4]>>>2,ja=z[4]<<30|z[5]>>>2,S=z[14]<<6|z[15]>>>26,T=z[15]<<6|z[14]>>>26,A=z[25]<<11|z[24]>>>21,B=z[24]<<11|z[25]>>>21,ea=z[34]<<15|z[35]>>>17,fa=z[35]<<15|z[34]>>>17,O=z[45]<<29|z[44]>>>3,P=z[44]<<29|z[45]>>>3,G=z[6]<<28|z[7]>>>4,H=z[7]<<28|z[6]>>>4,ka=z[17]<<23|z[16]>>>9,la=z[16]<<23|z[17]>>>9,U=z[26]<<25|z[27]>>>7,V=z[27]<<25|z[26]>>>7,C=z[36]<<21|z[37]>>>11,D=z[37]<<21|z[36]>>>11,ga=z[47]<<24|z[46]>>>8,ha=z[46]<<24|z[47]>>>8,$=z[8]<<27|z[9]>>>5,_=z[9]<<27|z[8]>>>5,I=z[18]<<20|z[19]>>>12,J=z[19]<<20|z[18]>>>12,ma=z[29]<<7|z[28]>>>25,na=z[28]<<7|z[29]>>>25,W=z[38]<<8|z[39]>>>24,X=z[39]<<8|z[38]>>>24,E=z[48]<<14|z[49]>>>18,F=z[49]<<14|z[48]>>>18,z[0]=q^~s&A,z[1]=r^~t&B,z[10]=G^~I&K,z[11]=H^~J&L,z[20]=Q^~S&U,z[21]=R^~T&V,z[30]=$^~aa&ca,z[31]=_^~ba&da,z[40]=ia^~ka&ma,z[41]=ja^~la&na,z[2]=s^~A&C,z[3]=t^~B&D,z[12]=I^~K&M,z[13]=J^~L&N,z[22]=S^~U&W,z[23]=T^~V&X,z[32]=aa^~ca&ea,z[33]=ba^~da&fa,z[42]=ka^~ma&oa,z[43]=la^~na&pa,z[4]=A^~C&E,z[5]=B^~D&F,z[14]=K^~M&O,z[15]=L^~N&P,z[24]=U^~W&Y,z[25]=V^~X&Z,z[34]=ca^~ea&ga,z[35]=da^~fa&ha,z[44]=ma^~oa&qa,z[45]=na^~pa&ra,z[6]=C^~E&q,z[7]=D^~F&r,z[16]=M^~O&G,z[17]=N^~P&H,z[26]=W^~Y&Q,z[27]=X^~Z&R,z[36]=ea^~ga&$,z[37]=fa^~ha&_,z[46]=oa^~qa&ia,z[47]=pa^~ra&ja,z[8]=E^~q&s,z[9]=F^~r&t,z[18]=O^~G&I,z[19]=P^~H&J,z[28]=Y^~Q&S,z[29]=Z^~R&T,z[38]=ga^~$&aa,z[39]=ha^~_&ba,z[48]=qa^~ia&ka,z[49]=ra^~ja&la,z[0]^=x[c],z[1]^=x[c+1]}while(!sa);var ya="";for(d=0,c=8;d<c;++d)e=z[d],ya+=v[e>>4&15]+v[15&e]+v[e>>12&15]+v[e>>8&15]+v[e>>20&15]+v[e>>16&15]+v[e>>28&15]+v[e>>24&15];return ya}function e(a){if("string"==typeof a)a=new c(a,"utf8");else if(!c.isBuffer(a))throw new Error("must be a sting");return new c(t.sha256().update(a).digest("hex"),"hex")}function f(a){if("string"==typeof a)a=new c(a,"utf8");else if(!c.isBuffer(a))throw new Error("must be a sting");return new c(d(a),"hex")}function g(a,b,c){Object.defineProperty(a,b,{enumerable:!0,value:c})}function h(a){if("string"!=typeof a||!a.match(/^0x[0-9A-Fa-f]{40}$/))throw new Error("invalid address");a=a.substring(2).toLowerCase();var b=f(a);a=a.split("");for(var c=0;c<40;c+=2)b[c>>1]>>4>=8&&(a[c]=a[c].toUpperCase()),(15&b[c>>1])>=8&&(a[c+1]=a[c+1].toUpperCase());return"0x"+a.join("")}function i(a){var b=null;if("string"!=typeof a)throw new Error("invalid address");if(a.match(/^(0x)?[0-9a-fA-F]{40}$/)){if("0x"!==a.substring(0,2)&&(a="0x"+a),b=h(a),a.match(/([A-F].*[a-f])|([a-f].*[A-F])/)&&b!==a)throw new Error("invalid address checksum")}else{if(!a.match(/^XE[0-9]{2}[0-9A-Za-z]{30,31}$/))throw new Error("invalid address");if(a.substring(2,4)!==A(a))throw new Error("invalid address icap checksum");for(b=new s(a.substring(4),36).toString(16);b.length<40;)b="0"+b;b=h("0x"+b)}return b}function j(a){a=i(a).substring(2);for(var b=new s(a,16).toString(36).toUpperCase();b.length<30;)b="0"+b;return"XE"+A("XE00"+b)+b}function k(a){return i("0x"+f(r.encode([p(i(a.from)),p(q(a.nonce,"nonce"))])).slice(12).toString("hex"))}function l(a){var b={};for(var c in a)b[c]=a[c];return b}function m(a){var b=0;for(b=0;b<a.length&&0===a[b];b++);return b>0?a.slice(b):a}function n(a){var b=a.toString(16);return b.length%2&&(b="0"+b),m(new c(b,"hex"))}function o(a,b){return!("string"!=typeof a||!a.match(/^0x[0-9A-Fa-f]*$/))&&(!b||a.length===2+2*b)}function p(a,b){if(!c.isBuffer(a)){if(!o(a)){var d=new Error(b?"invalid "+b:"invalid hex or buffer");throw d.reason="invalid hex string",d.value=a,d}a=a.substring(2),a.length%2&&(a="0"+a),a=new c(a,"hex")}return a}function q(a,b){return"number"==typeof a?"0x"+n(new s(a)).toString("hex"):a.mod||a.modulo?"0x"+n(a).toString("hex"):"0x"+p(a).toString("hex")}var r=a("rlp"),s=a("../node_modules/elliptic/node_modules/bn.js/lib/bn.js"),t=a("../node_modules/elliptic/node_modules/hash.js/lib/hash.js"),u=[1,256,65536,16777216],v="0123456789abcdef".split(""),w=[0,8,16,24],x=[1,0,32898,0,32906,2147483648,2147516416,2147483648,32907,0,2147483649,0,2147516545,2147483648,32777,2147483648,138,0,136,0,2147516425,0,2147483658,0,2147516555,0,139,2147483648,32905,2147483648,32771,2147483648,32770,2147483648,128,2147483648,32778,0,2147483658,2147483648,2147516545,2147483648,32896,2147483648,2147483649,0,2147516424,2147483648],y=[],z=[],A=function(){for(var a={},b=0;b<10;b++)a[String(b)]=String(b);for(var b=0;b<26;b++)a[String.fromCharCode(65+b)]=String(10+b);var c=Math.floor(Math.log10(Number.MAX_SAFE_INTEGER));return function(b){b=b.toUpperCase(),b=b.substring(4)+b.substring(0,2)+"00";for(var d=b.split(""),e=0;e<d.length;e++)d[e]=a[d[e]];for(d=d.join("");d.length>=c;){var f=d.substring(0,c);d=parseInt(f,10)%97+d.substring(f.length)}for(var g=String(98-parseInt(d,10)%97);g.length<2;)g="0"+g;return g}}();b.exports={BN:s,defineProperty:g,getAddress:i,getIcapAddress:j,getContractAddress:k,cloneObject:l,bnToBuffer:n,isHexString:o,hexOrBuffer:p,hexlify:q,stripZeros:m,sha256:e,sha3:f}}).call(this,a("buffer").Buffer)},{"../node_modules/elliptic/node_modules/bn.js/lib/bn.js":29,"../node_modules/elliptic/node_modules/hash.js/lib/hash.js":31,buffer:41,rlp:85}],11:[function(a,b,c){(function(c,d){"use strict";function e(a,b){if(!(this instanceof e))throw new Error("missing new");var g=a;a instanceof i||(g=new i(a)),j.defineProperty(this,"privateKey",g.privateKey),Object.defineProperty(this,"provider",{enumerable:!0,get:function(){return b},set:function(a){if(null!==a&&!h.isProvider(a))throw new Error("invalid provider");b=a}}),Object.defineProperty(this,"_provider",{enumerable:!0,get:function(){if(!b)throw new Error("missing provider");return b}}),null!==b&&(void 0===b?c.web3&&c.web3.currentProvider&&c.web3.currentProvider.sendAsync&&(this.provider=new h.Web3Provider(c.web3.currentProvider)):"string"==typeof b&&b.match(/^https?:\/\//)?this.provider=new h.HttpProvider(b):this.provider=b),j.defineProperty(this,"address",g.address),j.defineProperty(this,"sign",function(a){var b=[];k.forEach(function(c){var e=a[c.name]||new d(0);if(e=j.hexOrBuffer(j.hexlify(e),c.name),c.length&&e.length!==c.length&&e.length>0){var f=new Error("invalid "+c.name);throw f.reason="wrong length",f.value=e,f}if(c.maxLength&&(e=j.stripZeros(e),e.length>c.maxLength)){var f=new Error("invalid "+c.name);
-throw f.reason="too long",f.value=e,f}b.push(e)});var c=j.sha3(f.encode(b)),e=g.signDigest(c),h=e.s,i=e.recoveryParam;return b.push(new d([27+i])),b.push(j.bnToBuffer(e.r)),b.push(j.bnToBuffer(h)),"0x"+f.encode(b).toString("hex")})}var f=a("rlp"),g=a("./contract.js"),h=a("./providers.js"),i=a("./signing-key.js"),j=a("./utils.js");a("setimmediate");var k=[{name:"nonce",maxLength:32},{name:"gasPrice",maxLength:32},{name:"gasLimit",maxLength:32},{name:"to",length:20},{name:"value",maxLength:32},{name:"data"}];j.defineProperty(e.prototype,"getBalance",function(a){var b=this._provider,c=this;return new Promise(function(d,e){b.getBalance(c.address,a).then(function(a){d(a)},function(a){e(a)})})}),j.defineProperty(e.prototype,"getTransactionCount",function(a){var b=this._provider,c=this;return new Promise(function(d,e){b.getTransactionCount(c.address,a).then(function(a){d(a)},function(a){e(a)})})}),j.defineProperty(e.prototype,"estimateGas",function(a){var b=this._provider;return a=j.cloneObject(a),null==a.from&&(a.from=this.address),new Promise(function(c,d){b.estimateGas(a).then(function(a){c(a)},function(a){d(a)})})}),j.defineProperty(e.prototype,"sendTransaction",function(a){var b=a.gasLimit;null==b&&(b=3e6);var c=this,d=this._provider,e=new Promise(function(b,c){return a.gasPrice?b(a.gasPrice):void d.getGasPrice().then(function(a){b(a)},function(a){c(a)})}),f=new Promise(function(b,e){return a.nonce?b(a.nonce):void d.getTransactionCount(c.address,"pending").then(function(a){b(a)},function(a){e(a)})});return new Promise(function(g,h){Promise.all([e,f]).then(function(e){var f=c.sign({to:a.to,gasLimit:b,gasPrice:e[0],nonce:e[1],value:a.value});d.sendTransaction(f).then(function(a){g(a)},function(a){h(a)})},function(a){h(a)})})}),j.defineProperty(e.prototype,"send",function(a,b,c){if(a=j.getAddress(a),j.BN.isBN(b)&&(b="0x"+j.bnToBuffer(b).toString("hex")),!j.isHexString(b))throw new Error("invalid amountWei");return c||(c={}),this.sendTransaction({to:a,gasLimit:c.gasLimit,gasPrice:c.gasPrice,nonce:c.nonce,value:b})}),j.defineProperty(e.prototype,"getContract",function(a,b){return new g(this,a,new g.Interface(b))}),j.defineProperty(e,"_Contract",g),b.exports=e}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer)},{"./contract.js":4,"./providers.js":5,"./signing-key.js":8,"./utils.js":10,buffer:41,rlp:85,setimmediate:87}],12:[function(b,c,d){(function(b){"use strict";!function(e){function f(a){for(var b=[],c=0;c<a.length;c+=4)b.push(a[c]<<24|a[c+1]<<16|a[c+2]<<8|a[c+3]);return b}var g,h=null,i=null,j=null,k=function(a){if("number"==typeof a){for(var b=[],c=0;c<a;c++)b.push(0);return b}for(var c=0;c<a.length;c++)if(a[c]<0||a[c]>=256||"number"!=typeof a[c])throw new Error("invalid byte ("+a[c]+":"+c+")");if(a.slice)return a.slice(0);for(var b=[],c=0;c<a.length;c++)b.push(a[c]);return b};if("undefined"==typeof 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o=a("./utils.js"),p=[];!function(){for(var a="",b=0;b<33;b++)p.push(new o.BN(a,16)),a+="ff"}();var q=g(32,!1),r={encode:function(a){return q.encode(a?1:0)},decode:function(a,b){var c=q.decode(a,b);return{consumed:c.consumed,value:!c.value.isZero()}}},s={encode:function(a){if(!o.isHexString(a,20))throw new Error("invalid address");a=o.hexOrBuffer(a);var b=new c(32);return b.fill(0),a.copy(b,12),b},decode:function(a,b){if(a.length<b+32)throw new Error("invalid address");return{consumed:32,value:"0x"+a.slice(b+12,b+32).toString("hex")}}},t={encode:function(a){return i(o.hexOrBuffer(a))},decode:function(a,b){var c=j(a,b);return c.value="0x"+c.value.toString("hex"),c},dynamic:!0},u={encode:function(a){return i(new c(a,"utf8"))},decode:function(a,b){var c=j(a,b);return c.value=c.value.toString("utf8"),c},dynamic:!0},v=new RegExp(/^((u?int|bytes)([0-9]*)|(address|bool|string)|(\[([0-9]*)\]))/);o.defineProperty(m,"encodeParams",function(a,b){function d(a){return 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Error("missing new");var b=1;s.defineProperty(this,"sendMessage",function(c,d){return new Promise(function(e,f){a.sendAsync({id:b++,jsonrpc:"2.0",method:c,params:d},function(a,b){if(a)f(a);else if(b.error){var a=new Error(b.error.message);a.code=b.error.code,a.data=b.error.data,f(a)}else e(b.result)})})})}function e(a){return{sendAsync:function(b,c){var d=new r;d.open("POST",a,!0),d.setRequestHeader("Content-Type","application/json"),d.onreadystatechange=function(){if(4===d.readyState&&"function"==typeof c){var a=d.responseText;try{c(null,JSON.parse(a))}catch(b){var e=new Error("invalid response");e.orginialError=b,e.data=a,c(e)}}};try{d.send(JSON.stringify(b))}catch(e){var f=new Error("connection error");f.error=e,c(f)}}}}function f(a){if(!(this instanceof f))throw new Error("missing new");s.defineProperty(this,"client",new d(a))}function g(a){if(null==a)return"latest";if("latest"===a||"pending"===a)return a;if("number"==typeof a&&a==parseInt(a))return parseInt(a);throw new Error("invalid blockNumber")}function h(a,b,c,d){return new Promise(function(e,f){a.sendMessage(b,c).then(function(a){s.isHexString(a)?(a=a.substring(2),a=d?new s.BN(a,16):parseInt(a,16),e(a)):f(new Error("invalid server response"))},function(a){f(a)})})}function i(a){if(!(this instanceof i))throw new Error("missing new");f.call(this,e(a))}function j(a){if(!(this instanceof j))throw new Error("missing new");if(a.currentProvider&&(a=a.currentProvider),!a.sendAsync)throw new Error("invalid provider");f.call(this,a)}function k(a){return new s.BN(a)}function l(a){return new s.BN(n(a).substring(2),16)}function m(a){if(!s.isHexString(a))throw new Error("invalid hex string");return parseInt(a.substring(2),16)}function n(a){if(!s.isHexString(a))throw new Error("invalid hex string");return a}function o(a){if(!s.isHexString(a,32))throw new Error("invalid hex string");return a}function p(a){if(!(this instanceof p))throw new Error("missing new");a||(a={});var b=a.testnet,c=a.apiKey;s.defineProperty(this,"testnet",b),s.defineProperty(this,"apiKey",c),s.defineProperty(this,"_send",function(a,d){var e=b?"https://testnet.etherscan.io/api?":"https://api.etherscan.io/api?";return e+=a,c&&(e+="apikey="+c),new Promise(function(a,b){var c=new r;c.open("GET",e,!0),c.onreadystatechange=function(){if(4===c.readyState){var e=c.responseText;try{e=JSON.parse(e),e.message?"OK"===e.message?a(d(e.result)):b(new Error("invalid response")):e.error?(console.log(e.error),b(new Error("invalid response"))):a(d(e.result))}catch(f){console.log(f),b(new Error("invalid response"))}}};try{c.send()}catch(f){var g=new Error("connection error");g.error=f,b(g)}})})}var q=a("inherits"),r=a("xmlhttprequest").XMLHttpRequest,s=a("./utils.js"),t=["getBalance","getTransactionCount","getGasPrice","sendTransaction","call","estimateGas"];s.defineProperty(f.prototype,"getBalance",function(a,b){return h(this.client,"eth_getBalance",[s.getAddress(a),g(b)],!0)}),s.defineProperty(f.prototype,"getTransactionCount",function(a,b){return h(this.client,"eth_getTransactionCount",[s.getAddress(a),g(b)],!1)}),s.defineProperty(f.prototype,"getGasPrice",function(){return h(this.client,"eth_gasPrice",[],!0)}),s.defineProperty(f.prototype,"sendTransaction",function(a){if(!s.isHexString(a))throw new Error("invalid transaction");return this.client.sendMessage("eth_sendRawTransaction",[a])}),s.defineProperty(f.prototype,"call",function(a){return this.client.sendMessage("eth_call",[a])}),s.defineProperty(f.prototype,"estimateGas",function(a){return h(this.client,"eth_estimateGas",[a],!0)});var u={};q(i,f),s.defineProperty(u,"HttpProvider",i),q(j,f),s.defineProperty(u,"Web3Provider",j),s.defineProperty(u,"EtherscanProvider",p),s.defineProperty(p.prototype,"getBalance",function(a,b){a=s.getAddress(a),b=g(b);var c="module=account&action=balance&address="+a+"&tag="+b;return this._send(c,k)}),s.defineProperty(p.prototype,"getTransactionCount",function(a,b){a=s.getAddress(a),b=g(b);var c="module=proxy&action=eth_getTransactionCount&address="+a+"&tag="+b;return this._send(c,m)}),s.defineProperty(p.prototype,"getGasPrice",function(){var a="module=proxy&action=eth_gasPrice";return this._send(a,l)}),s.defineProperty(p.prototype,"sendTransaction",function(a){if(!s.isHexString(a))throw new Error("invalid transaction");var b="module=proxy&action=eth_sendRawTransaction&hex="+a;return this._send(b,o)}),s.defineProperty(p.prototype,"call",function(a){var b=s.getAddress(a.to),c=a.data;if(!s.isHexString(c))throw new Error("invalid data");var d="module=proxy&action=eth_call&to="+b+"&data="+c;return this._send(d,n)}),s.defineProperty(p.prototype,"estimateGas",function(a){var b=s.getAddress(a.to),c="module=proxy&action=eth_estimateGas&to="+b;return a.gasPrice&&(c+="&gasPrice="+s.hexlify(a.gasPrice)),a.gasLimit&&(c+="&gas="+s.hexlify(a.gasLimit)),a.from&&(c+="&from="+s.getAddress(a.from)),a.data&&(c+="&data="+n(a.data)),a.value&&(c+="&value="+s.hexlify(a.value)),this._send(c,l)}),s.defineProperty(u,"isProvider",function(a){if(!a)return!1;for(var b=0;b<t;b++)if("function"!=typeof a[t[b]])return!1;return!0}),b.exports=u},{"./utils.js":10,inherits:68,xmlhttprequest:3}],6:[function(a,b,c){(function(c){"use strict";function d(){if(!(this instanceof d))throw new Error("missing new");var a=f._weakCrypto||!1,b=a?0:384;Object.defineProperty(this,"entropy",{enumerable:!0,get:function(){return b}});var h=new e.ModeOfOperation.cbc(d.randomishBytes(32),d.randomishBytes(16));g.defineProperty(this,"feedEntropy",function(d,e){if(d||(d=""),e||(e=0),parseInt(e)!=e)throw new Error("invalid expectedEntropyBits");d=(new Date).getTime()+"-"+JSON.stringify(d)+"-"+d.toString();var i=g.sha3(new c(d,"utf8"));return b+=e+(a?0:256),h.encrypt(i.slice(0,16)),h.encrypt(f(16)),h.encrypt(i.slice(0,16)),new c(h.encrypt(f(16)))}),g.defineProperty(this,"randomBytes",function(a,b){if(parseInt(a)!=a||a<=0||a>1024)throw new Error("invalid length");if(b||(b=c.concat([this.feedEntropy(),this.feedEntropy()])),!c.isBuffer(b)||32!==b.length)throw new Error("invalid key");for(var d=(new e.ModeOfOperation.cbc(b,this.feedEntropy()),new c(0));d.length<a;)d=c.concat([d,this.feedEntropy()]);return d.slice(0,a)}),this.feedEntropy()}var e=a("aes-js"),f=a("./random-bytes.js"),g=a("./utils.js");g.defineProperty(d,"randomishBytes",function(a){return f(a)}),b.exports=d}).call(this,a("buffer").Buffer)},{"./random-bytes.js":2,"./utils.js":10,"aes-js":12,buffer:41}],7:[function(a,b,c){(function(c){"use strict";function d(a,b){for(var c=a,d=b.toLowerCase().split("/"),e=0;e<d.length;e++){var f=null;for(var g in c)if(g.toLowerCase()===d[e]){f=c[g];break}if(null===f)return null;c=f}return c}var e=a("aes-js"),f=a("pbkdf2"),g=a("scrypt-js"),h=a("uuid"),i=a("./randomish.js"),j=a("./signing-key.js"),k=a("./utils.js"),l={};k.defineProperty(l,"isCrowdsaleWallet",function(a){try{var b=JSON.parse(a)}catch(c){return!1}return b.encseed&&b.ethaddr}),k.defineProperty(l,"isValidWallet",function(a){try{var b=JSON.parse(a)}catch(c){return!1}return!(!b.version||parseInt(b.version)!==b.version||3!==parseInt(b.version))}),k.defineProperty(l,"decryptCrowdsale",function(a,b){var g=JSON.parse(a),h=k.getAddress(d(g,"ethaddr")),i=new c(d(g,"encseed"),"hex");if(!i||i.length%16!==0)throw new Error("invalid encseed");for(var l=f.pbkdf2Sync(b,b,2e3,32,"sha256").slice(0,16),m=i.slice(0,16),n=i.slice(16),o=new c(0),p=new e.ModeOfOperation.cbc(l,m),q=0;q<n.length;q+=16)o=c.concat([o,new c(p.decrypt(n.slice(q,q+16)))]);var r=o[o.length-1];if(r>16||r>o.length)throw new Error("invalid password");for(var q=o.length-r;q<o.length;q++)if(o[q]!==r)throw new Error("invalid password");o=o.slice(0,o.length-r);for(var s="",q=0;q<o.length;q++)s+=String.fromCharCode(o[q]);var t=new j(k.sha3(new c(s)));if(t.address!==h)throw new Error("corrupt crowdsale wallet");return t}),k.defineProperty(l,"decrypt",function(a,b,f){if(!c.isBuffer(b))throw new Error("password must be a buffer");var h=JSON.parse(a),i=function(a,b){var f=d(h,"crypto/cipher");if("aes-128-ctr"===f){var g=new c(d(h,"crypto/cipherparams/iv"),"hex"),i=new e.Counter(g),j=new e.ModeOfOperation.ctr(a,i);return new c(j.decrypt(b))}return null},l=function(a,b){return k.sha3(c.concat([a,b]))};return new Promise(function(a,e){var m=d(h,"crypto/kdf");if(m&&"scrypt"===m.toLowerCase()){var n=new c(d(h,"crypto/kdfparams/salt"),"hex"),o=parseInt(d(h,"crypto/kdfparams/n")),p=parseInt(d(h,"crypto/kdfparams/r")),q=parseInt(d(h,"crypto/kdfparams/p"));if(!o||!p||!q)return void e(new Error("unsupported key-derivation function parameters"));if(0!==(o&o-1))return void e(new Error("unsupported key-derivation function parameter value for N"));var r=d(h,"crypto/kdfparams/dklen");if(32!==r)return void e(new Error("unsupported key-derivation derived-key length"));g(b,n,o,p,q,r,function(b,g,m){if(b)b.progress=g,e(b);else if(m){m=new c(m);var n=new c(d(h,"crypto/ciphertext"),"hex"),o=l(m.slice(16,32),n).toString("hex").toLowerCase();if(o!==d(h,"crypto/mac").toLowerCase())return void e(new Error("invalid password"));var p=i(m.slice(0,16),n);if(!p)return void e(new Error("unsupported cipher"));var q=new j(p);if(q.address!==k.getAddress(h.address))return void e(new Error("address mismatch"));f&&f(1),a(q)}else if(f)return f(g)})}else e(new Error("unsupported key-derivation function"))})}),k.defineProperty(l,"encrypt",function(a,b,d,f){if("function"!=typeof d||f||(f=d,d={}),d||(d={}),a instanceof j&&(a=a.privateKey),a=k.hexOrBuffer(a,"private key"),32!==a.length)throw new Erro("invalid private key");if(!c.isBuffer(b))throw new Error("password must be a buffer");var l=d.salt;l=l?k.hexOrBuffer(l,"salt"):(new i).randomBytes(32);var m=null;if(d.iv&&(m=k.hexOrBuffer(d.iv,"iv"),16!==m.length))throw new Error("invalid iv");var n=d.uuid;if(n&&(n=k.hexOrBuffer(n,"uuid"),16!==n.length))throw new Error("invalid uuid");var o=1<<17,p=8,q=1;return d.scrypt&&(d.scrypt.N&&(o=d.scrypt.N),d.scrypt.r&&(p=d.scrypt.r),d.scrypt.p&&(q=d.scrypt.p)),new Promise(function(d,i){g(b,l,o,p,q,64,function(b,g,r){if(b)b.progress=g,i(b);else if(r){r=new c(r);var s=r.slice(0,16),t=r.slice(16,32);m||(m=r.slice(32,48)),n||(n=r.slice(48,64));var u=new j(a).address,v=new e.Counter(m),w=new e.ModeOfOperation.ctr(s,v),x=new c(w.encrypt(a)),y=k.sha3(c.concat([t,x])),z={address:u,id:h.v4({random:n}),version:3,Crypto:{cipher:"aes-128-ctr",cipherparams:{iv:m.toString("hex")},ciphertext:x.toString("hex"),kdf:"scrypt",kdfparams:{salt:l.toString("hex"),n:o,dklen:32,p:q,r:p},mac:y.toString("hex")}};f&&f(1),d(JSON.stringify(z))}else if(f)return f(g)})})}),b.exports=l}).call(this,a("buffer").Buffer)},{"./randomish.js":6,"./signing-key.js":8,"./utils.js":10,"aes-js":12,buffer:41,pbkdf2:69,"scrypt-js":86,uuid:89}],8:[function(a,b,c){(function(c){"use strict";function d(a){if(!(this instanceof d))throw new Error("missing new");if(f.isHexString(a,32))a=f.hexOrBuffer(a);else if(!c.isBuffer(a)||32!==a.length)throw new Error("invalid private key");f.defineProperty(this,"privateKey","0x"+a.toString("hex"));var b=g.keyFromPrivate(a),e=new c(b.getPublic(!1,"hex"),"hex").slice(1),h=f.getAddress(f.sha3(e).slice(12).toString("hex"));f.defineProperty(this,"address",h),f.defineProperty(this,"signDigest",function(a){return b.sign(a,{canonical:!0})})}var e=a("elliptic"),f=a("./utils.js"),g=new e.ec("secp256k1");f.defineProperty(d,"recover",function(a,b,d,e){var h=g.recoverPubKey(a,{r:b,s:d},e);return h=new c(h.encode("hex",!1),"hex").slice(1),f.getAddress(f.sha3(h).slice(12).toString("hex"))}),b.exports=d}).call(this,a("buffer").Buffer)},{"./utils.js":10,buffer:41,elliptic:13}],9:[function(a,b,c){function d(a,b){if("number"==typeof a?a=new f.BN(a):f.isHexString(a)&&(a=new f.BN(a.substring(2),16)),b||(b={}),!(a instanceof f.BN))throw new Error("invalid wei");var c=a.lt(g);c&&(a=a.mul(h));for(var d=a.mod(i).toString(10);d.length<18;)d="0"+d;b.pad||(d=d.match(/^([0-9]*[1-9]|0)(0*)/)[1]);var e=a.div(i).toString(10);b.commify&&(e=e.replace(/\B(?=(\d{3})+(?!\d))/g,","));var j=e+"."+d;return c&&(j="-"+j),j}function e(a){if("string"!=typeof a||!a.match(/^-?[0-9.]+$/))throw new Error("invalid value");var b="-"===a.substring(0,1);if(b&&(a=a.substring(1)),"."===a)throw new Error("invalid value");var c=a.split(".");if(c.length>2)throw new Error("too many decimal points");var d=c[0],e=c[1];if(d||(d="0"),e||(e="0"),e.length>18)throw new Error("too many decimal places");for(;e.length<18;)e+="0";d=new f.BN(d),e=new f.BN(e);var g=d.mul(i).add(e);return b&&(g=g.mul(h)),g}var f=a("./utils.js"),g=new f.BN(0),h=new f.BN((-1)),i=new f.BN("1000000000000000000");b.exports={formatEther:d,parseEther:e}},{"./utils.js":10}],10:[function(a,b,c){(function(c){"use strict";function d(a){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,$,_,aa,ba,ca,da,ea,fa,ga,ha,ia,ja,ka,la,ma,na,oa,pa,qa,ra,sa=!1,ta=0,ua=0,va=a.length,wa=34,xa=4*wa;for(d=0;d<50;++d)z[d]=0;b=0;do{for(y[0]=b,d=1;d<wa+1;++d)y[d]=0;for(d=ua;ta<va&&d<xa;++ta)y[d>>2]|=a[ta]<<w[3&d++];for(ua=d-xa,ta==va&&(y[d>>2]|=u[3&d],++ta),b=y[wa],ta>va&&d<xa&&(y[wa-1]|=2147483648,sa=!0),d=0;d<wa;++d)z[d]^=y[d];for(c=0;c<48;c+=2)g=z[0]^z[10]^z[20]^z[30]^z[40],h=z[1]^z[11]^z[21]^z[31]^z[41],i=z[2]^z[12]^z[22]^z[32]^z[42],j=z[3]^z[13]^z[23]^z[33]^z[43],k=z[4]^z[14]^z[24]^z[34]^z[44],l=z[5]^z[15]^z[25]^z[35]^z[45],m=z[6]^z[16]^z[26]^z[36]^z[46],n=z[7]^z[17]^z[27]^z[37]^z[47],o=z[8]^z[18]^z[28]^z[38]^z[48],p=z[9]^z[19]^z[29]^z[39]^z[49],e=o^(i<<1|j>>>31),f=p^(j<<1|i>>>31),z[0]^=e,z[1]^=f,z[10]^=e,z[11]^=f,z[20]^=e,z[21]^=f,z[30]^=e,z[31]^=f,z[40]^=e,z[41]^=f,e=g^(k<<1|l>>>31),f=h^(l<<1|k>>>31),z[2]^=e,z[3]^=f,z[12]^=e,z[13]^=f,z[22]^=e,z[23]^=f,z[32]^=e,z[33]^=f,z[42]^=e,z[43]^=f,e=i^(m<<1|n>>>31),f=j^(n<<1|m>>>31),z[4]^=e,z[5]^=f,z[14]^=e,z[15]^=f,z[24]^=e,z[25]^=f,z[34]^=e,z[35]^=f,z[44]^=e,z[45]^=f,e=k^(o<<1|p>>>31),f=l^(p<<1|o>>>31),z[6]^=e,z[7]^=f,z[16]^=e,z[17]^=f,z[26]^=e,z[27]^=f,z[36]^=e,z[37]^=f,z[46]^=e,z[47]^=f,e=m^(g<<1|h>>>31),f=n^(h<<1|g>>>31),z[8]^=e,z[9]^=f,z[18]^=e,z[19]^=f,z[28]^=e,z[29]^=f,z[38]^=e,z[39]^=f,z[48]^=e,z[49]^=f,q=z[0],r=z[1],aa=z[11]<<4|z[10]>>>28,ba=z[10]<<4|z[11]>>>28,K=z[20]<<3|z[21]>>>29,L=z[21]<<3|z[20]>>>29,oa=z[31]<<9|z[30]>>>23,pa=z[30]<<9|z[31]>>>23,Y=z[40]<<18|z[41]>>>14,Z=z[41]<<18|z[40]>>>14,Q=z[2]<<1|z[3]>>>31,R=z[3]<<1|z[2]>>>31,s=z[13]<<12|z[12]>>>20,t=z[12]<<12|z[13]>>>20,ca=z[22]<<10|z[23]>>>22,da=z[23]<<10|z[22]>>>22,M=z[33]<<13|z[32]>>>19,N=z[32]<<13|z[33]>>>19,qa=z[42]<<2|z[43]>>>30,ra=z[43]<<2|z[42]>>>30,ia=z[5]<<30|z[4]>>>2,ja=z[4]<<30|z[5]>>>2,S=z[14]<<6|z[15]>>>26,T=z[15]<<6|z[14]>>>26,A=z[25]<<11|z[24]>>>21,B=z[24]<<11|z[25]>>>21,ea=z[34]<<15|z[35]>>>17,fa=z[35]<<15|z[34]>>>17,O=z[45]<<29|z[44]>>>3,P=z[44]<<29|z[45]>>>3,G=z[6]<<28|z[7]>>>4,H=z[7]<<28|z[6]>>>4,ka=z[17]<<23|z[16]>>>9,la=z[16]<<23|z[17]>>>9,U=z[26]<<25|z[27]>>>7,V=z[27]<<25|z[26]>>>7,C=z[36]<<21|z[37]>>>11,D=z[37]<<21|z[36]>>>11,ga=z[47]<<24|z[46]>>>8,ha=z[46]<<24|z[47]>>>8,$=z[8]<<27|z[9]>>>5,_=z[9]<<27|z[8]>>>5,I=z[18]<<20|z[19]>>>12,J=z[19]<<20|z[18]>>>12,ma=z[29]<<7|z[28]>>>25,na=z[28]<<7|z[29]>>>25,W=z[38]<<8|z[39]>>>24,X=z[39]<<8|z[38]>>>24,E=z[48]<<14|z[49]>>>18,F=z[49]<<14|z[48]>>>18,z[0]=q^~s&A,z[1]=r^~t&B,z[10]=G^~I&K,z[11]=H^~J&L,z[20]=Q^~S&U,z[21]=R^~T&V,z[30]=$^~aa&ca,z[31]=_^~ba&da,z[40]=ia^~ka&ma,z[41]=ja^~la&na,z[2]=s^~A&C,z[3]=t^~B&D,z[12]=I^~K&M,z[13]=J^~L&N,z[22]=S^~U&W,z[23]=T^~V&X,z[32]=aa^~ca&ea,z[33]=ba^~da&fa,z[42]=ka^~ma&oa,z[43]=la^~na&pa,z[4]=A^~C&E,z[5]=B^~D&F,z[14]=K^~M&O,z[15]=L^~N&P,z[24]=U^~W&Y,z[25]=V^~X&Z,z[34]=ca^~ea&ga,z[35]=da^~fa&ha,z[44]=ma^~oa&qa,z[45]=na^~pa&ra,z[6]=C^~E&q,z[7]=D^~F&r,z[16]=M^~O&G,z[17]=N^~P&H,z[26]=W^~Y&Q,z[27]=X^~Z&R,z[36]=ea^~ga&$,z[37]=fa^~ha&_,z[46]=oa^~qa&ia,z[47]=pa^~ra&ja,z[8]=E^~q&s,z[9]=F^~r&t,z[18]=O^~G&I,z[19]=P^~H&J,z[28]=Y^~Q&S,z[29]=Z^~R&T,z[38]=ga^~$&aa,z[39]=ha^~_&ba,z[48]=qa^~ia&ka,z[49]=ra^~ja&la,z[0]^=x[c],z[1]^=x[c+1]}while(!sa);var ya="";for(d=0,c=8;d<c;++d)e=z[d],ya+=v[e>>4&15]+v[15&e]+v[e>>12&15]+v[e>>8&15]+v[e>>20&15]+v[e>>16&15]+v[e>>28&15]+v[e>>24&15];return ya}function e(a){if("string"==typeof a)a=new c(a,"utf8");else if(!c.isBuffer(a))throw new Error("must be a sting");return new c(t.sha256().update(a).digest("hex"),"hex")}function f(a){if("string"==typeof a)a=new c(a,"utf8");else if(!c.isBuffer(a))throw new Error("must be a sting");return new c(d(a),"hex")}function g(a,b,c){Object.defineProperty(a,b,{enumerable:!0,value:c})}function h(a){if("string"!=typeof a||!a.match(/^0x[0-9A-Fa-f]{40}$/))throw new Error("invalid address");a=a.substring(2).toLowerCase();var b=f(a);a=a.split("");for(var c=0;c<40;c+=2)b[c>>1]>>4>=8&&(a[c]=a[c].toUpperCase()),(15&b[c>>1])>=8&&(a[c+1]=a[c+1].toUpperCase());return"0x"+a.join("")}function i(a){var b=null;if("string"!=typeof a)throw new Error("invalid address");if(a.match(/^(0x)?[0-9a-fA-F]{40}$/)){if("0x"!==a.substring(0,2)&&(a="0x"+a),b=h(a),a.match(/([A-F].*[a-f])|([a-f].*[A-F])/)&&b!==a)throw new Error("invalid address checksum")}else{if(!a.match(/^XE[0-9]{2}[0-9A-Za-z]{30,31}$/))throw new Error("invalid address");if(a.substring(2,4)!==A(a))throw new Error("invalid address icap checksum");for(b=new s(a.substring(4),36).toString(16);b.length<40;)b="0"+b;b=h("0x"+b)}return b}function j(a){a=i(a).substring(2);for(var b=new s(a,16).toString(36).toUpperCase();b.length<30;)b="0"+b;return"XE"+A("XE00"+b)+b}function k(a){return i("0x"+f(r.encode([p(i(a.from)),p(q(a.nonce,"nonce"))])).slice(12).toString("hex"))}function l(a){var b={};for(var c in a)b[c]=a[c];return b}function m(a){var b=0;for(b=0;b<a.length&&0===a[b];b++);return b>0?a.slice(b):a}function n(a){var b=a.toString(16);return b.length%2&&(b="0"+b),m(new c(b,"hex"))}function o(a,b){return!("string"!=typeof a||!a.match(/^0x[0-9A-Fa-f]*$/))&&(!b||a.length===2+2*b)}function p(a,b){if(!c.isBuffer(a)){if(!o(a)){var d=new Error(b?"invalid "+b:"invalid hex or buffer");throw d.reason="invalid hex string",d.value=a,d}a=a.substring(2),a.length%2&&(a="0"+a),a=new c(a,"hex")}return a}function q(a,b){return"number"==typeof a?"0x"+n(new s(a)).toString("hex"):a.mod||a.modulo?"0x"+n(a).toString("hex"):"0x"+p(a).toString("hex")}var r=a("rlp"),s=a("../node_modules/elliptic/node_modules/bn.js/lib/bn.js"),t=a("../node_modules/elliptic/node_modules/hash.js/lib/hash.js"),u=[1,256,65536,16777216],v="0123456789abcdef".split(""),w=[0,8,16,24],x=[1,0,32898,0,32906,2147483648,2147516416,2147483648,32907,0,2147483649,0,2147516545,2147483648,32777,2147483648,138,0,136,0,2147516425,0,2147483658,0,2147516555,0,139,2147483648,32905,2147483648,32771,2147483648,32770,2147483648,128,2147483648,32778,0,2147483658,2147483648,2147516545,2147483648,32896,2147483648,2147483649,0,2147516424,2147483648],y=[],z=[],A=function(){for(var a={},b=0;b<10;b++)a[String(b)]=String(b);for(var b=0;b<26;b++)a[String.fromCharCode(65+b)]=String(10+b);var c=Math.floor(Math.log10(Number.MAX_SAFE_INTEGER));return function(b){b=b.toUpperCase(),b=b.substring(4)+b.substring(0,2)+"00";for(var d=b.split(""),e=0;e<d.length;e++)d[e]=a[d[e]];for(d=d.join("");d.length>=c;){var f=d.substring(0,c);d=parseInt(f,10)%97+d.substring(f.length)}for(var g=String(98-parseInt(d,10)%97);g.length<2;)g="0"+g;return g}}();b.exports={BN:s,defineProperty:g,getAddress:i,getIcapAddress:j,getContractAddress:k,cloneObject:l,bnToBuffer:n,isHexString:o,hexOrBuffer:p,hexlify:q,stripZeros:m,sha256:e,sha3:f}}).call(this,a("buffer").Buffer)},{"../node_modules/elliptic/node_modules/bn.js/lib/bn.js":29,"../node_modules/elliptic/node_modules/hash.js/lib/hash.js":31,buffer:41,rlp:85}],11:[function(a,b,c){(function(c,d){"use strict";function e(a,b){if(!(this instanceof e))throw new Error("missing new");var g=a;a instanceof i||(g=new i(a)),j.defineProperty(this,"privateKey",g.privateKey),Object.defineProperty(this,"provider",{enumerable:!0,get:function(){return b},set:function(a){if(null!==a&&!h.isProvider(a))throw new Error("invalid provider");b=a}}),Object.defineProperty(this,"_provider",{enumerable:!0,get:function(){if(!b)throw new Error("missing provider");return b}}),null!==b&&(void 0===b?c.web3&&c.web3.currentProvider&&c.web3.currentProvider.sendAsync&&(this.provider=new h.Web3Provider(c.web3.currentProvider)):"string"==typeof b&&b.match(/^https?:\/\//)?this.provider=new h.HttpProvider(b):this.provider=b),j.defineProperty(this,"address",g.address),j.defineProperty(this,"sign",function(a){var b=[];k.forEach(function(c){var e=a[c.name]||new d(0);if(e=j.hexOrBuffer(j.hexlify(e),c.name),c.length&&e.length!==c.length&&e.length>0){
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d.from=i.recover(e,d.r,d.s,d.v[0]-27),d}),j.defineProperty(e.prototype,"getBalance",function(a){var b=this._provider,c=this;return new Promise(function(d,e){b.getBalance(c.address,a).then(function(a){d(a)},function(a){e(a)})})}),j.defineProperty(e.prototype,"getTransactionCount",function(a){var b=this._provider,c=this;return new Promise(function(d,e){b.getTransactionCount(c.address,a).then(function(a){d(a)},function(a){e(a)})})}),j.defineProperty(e.prototype,"estimateGas",function(a){var b=this._provider;return a=j.cloneObject(a),null==a.from&&(a.from=this.address),new Promise(function(c,d){b.estimateGas(a).then(function(a){c(a)},function(a){d(a)})})}),j.defineProperty(e.prototype,"sendTransaction",function(a){var b=a.gasLimit;null==b&&(b=3e6);var c=this,d=this._provider,e=new Promise(function(b,c){return a.gasPrice?b(a.gasPrice):void d.getGasPrice().then(function(a){b(a)},function(a){c(a)})}),f=new Promise(function(b,e){return a.nonce?b(a.nonce):void 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 if(!(this instanceof C))throw Error("AES must be instanitated with `new`");this.key=h(a),this._prepare()};C.prototype._prepare=function(){var a=m[this.key.length];if(null==a)throw new Error("invalid key size (must be 16, 24 or 32 bytes)");this._Ke=[],this._Kd=[];for(var b=0;b<=a;b++)this._Ke.push([0,0,0,0]),this._Kd.push([0,0,0,0]);for(var c,d=4*(a+1),e=this.key.length/4,g=f(this.key),b=0;b<e;b++)c=b>>2,this._Ke[c][b%4]=g[b],this._Kd[a-c][b%4]=g[b];for(var h,i=0,j=e;j<d;){if(h=g[e-1],g[0]^=o[h>>16&255]<<24^o[h>>8&255]<<16^o[255&h]<<8^o[h>>24&255]^n[i]<<24,i+=1,8!=e)for(var b=1;b<e;b++)g[b]^=g[b-1];else{for(var b=1;b<e/2;b++)g[b]^=g[b-1];h=g[e/2-1],g[e/2]^=o[255&h]^o[h>>8&255]<<8^o[h>>16&255]<<16^o[h>>24&255]<<24;for(var b=e/2+1;b<e;b++)g[b]^=g[b-1]}for(var k,l,b=0;b<e&&j<d;)k=j>>2,l=j%4,this._Ke[k][l]=g[b],this._Kd[a-k][l]=g[b++],j++}for(var k=1;k<a;k++)for(var l=0;l<4;l++)h=this._Kd[k][l],this._Kd[k][l]=y[h>>24&255]^z[h>>16&255]^A[h>>8&255]^B[255&h]},C.prototype.encrypt=function(a){if(16!=a.length)throw new Error("invalid plaintext size (must be 16 bytes)");for(var b=this._Ke.length-1,c=[0,0,0,0],d=f(a),e=0;e<4;e++)d[e]^=this._Ke[0][e];for(var g=1;g<b;g++){for(var e=0;e<4;e++)c[e]=q[d[e]>>24&255]^r[d[(e+1)%4]>>16&255]^s[d[(e+2)%4]>>8&255]^t[255&d[(e+3)%4]]^this._Ke[g][e];d=c.slice(0)}for(var i,j=h(16),e=0;e<4;e++)i=this._Ke[b][e],j[4*e]=255&(o[d[e]>>24&255]^i>>24),j[4*e+1]=255&(o[d[(e+1)%4]>>16&255]^i>>16),j[4*e+2]=255&(o[d[(e+2)%4]>>8&255]^i>>8),j[4*e+3]=255&(o[255&d[(e+3)%4]]^i);return j},C.prototype.decrypt=function(a){if(16!=a.length)throw new Error("invalid ciphertext size (must be 16 bytes)");for(var b=this._Kd.length-1,c=[0,0,0,0],d=f(a),e=0;e<4;e++)d[e]^=this._Kd[0][e];for(var g=1;g<b;g++){for(var e=0;e<4;e++)c[e]=u[d[e]>>24&255]^v[d[(e+3)%4]>>16&255]^w[d[(e+2)%4]>>8&255]^x[255&d[(e+1)%4]]^this._Kd[g][e];d=c.slice(0)}for(var i,j=h(16),e=0;e<4;e++)i=this._Kd[b][e],j[4*e]=255&(p[d[e]>>24&255]^i>>24),j[4*e+1]=255&(p[d[(e+3)%4]>>16&255]^i>>16),j[4*e+2]=255&(p[d[(e+2)%4]>>8&255]^i>>8),j[4*e+3]=255&(p[255&d[(e+1)%4]]^i);return j};var D=function(a){if(!(this instanceof D))throw Error("AES must be instanitated with `new`");this.description="Electronic Code Block",this.name="ecb",this._aes=new C(a)};D.prototype.encrypt=function(a){return this._aes.encrypt(a)},D.prototype.decrypt=function(a,b){return this._aes.decrypt(a)};var E=function(a,b){if(!(this instanceof E))throw Error("AES must be instanitated with `new`");if(this.description="Cipher Block Chaining",this.name="cbc",b){if(16!=b.length)throw new Error("invalid initialation vector size (must be 16 bytes)")}else b=h([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]);this._lastCipherblock=h(b),this._aes=new C(a)};E.prototype.encrypt=function(a){if(16!=a.length)throw new Error("invalid plaintext size (must be 16 bytes)");for(var b=h(a),c=0;c<16;c++)b[c]^=this._lastCipherblock[c];return this._lastCipherblock=this._aes.encrypt(b),this._lastCipherblock},E.prototype.decrypt=function(a){if(16!=a.length)throw new Error("invalid ciphertext size (must be 16 bytes)");for(var b=this._aes.decrypt(a),c=0;c<16;c++)b[c]^=this._lastCipherblock[c];return i(a,this._lastCipherblock),b};var F=function(a,b,c){if(!(this instanceof F))throw Error("AES must be instanitated with `new`");if(this.description="Cipher Feedback",this.name="cfb",b){if(16!=b.length)throw new Error("invalid initialation vector size (must be 16 size)")}else b=h([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]);c||(c=1),this.segmentSize=c,this._shiftRegister=h(b),this._aes=new C(a)};F.prototype.encrypt=function(a){if(a.length%this.segmentSize!=0)throw new Error("invalid plaintext size (must be segmentSize bytes)");for(var b,c=h(a),d=0;d<c.length;d+=this.segmentSize){b=this._aes.encrypt(this._shiftRegister);for(var e=0;e<this.segmentSize;e++)c[d+e]^=b[e];i(this._shiftRegister,this._shiftRegister,0,this.segmentSize),i(c,this._shiftRegister,16-this.segmentSize,d,d+this.segmentSize)}return c},F.prototype.decrypt=function(a){if(a.length%this.segmentSize!=0)throw new Error("invalid ciphertext size (must be segmentSize bytes)");for(var b,c=h(a),d=0;d<c.length;d+=this.segmentSize){b=this._aes.encrypt(this._shiftRegister);for(var e=0;e<this.segmentSize;e++)c[d+e]^=b[e];i(this._shiftRegister,this._shiftRegister,0,this.segmentSize),i(a,this._shiftRegister,16-this.segmentSize,d,d+this.segmentSize)}return c};var G=function(a,b){if(!(this instanceof G))throw Error("AES must be instanitated with `new`");if(this.description="Output Feedback",this.name="ofb",b){if(16!=b.length)throw new Error("invalid initialation vector size (must be 16 bytes)")}else b=h([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]);this._lastPrecipher=h(b),this._lastPrecipherIndex=16,this._aes=new C(a)};G.prototype.encrypt=function(a){for(var b=h(a),c=0;c<b.length;c++)16===this._lastPrecipherIndex&&(this._lastPrecipher=this._aes.encrypt(this._lastPrecipher),this._lastPrecipherIndex=0),b[c]^=this._lastPrecipher[this._lastPrecipherIndex++];return b},G.prototype.decrypt=G.prototype.encrypt;var H=function(a){if(!(this instanceof H))throw Error("Counter must be instanitated with `new`");0===a||a||(a=1),"number"==typeof a?(this._counter=h([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]),this.setValue(a)):this.setBytes(a)};H.prototype.setValue=function(a){if("number"!=typeof a||parseInt(a)!=a)throw new Error("invalid counter value (must be an integer)");for(var b=15;b>=0;--b)this._counter[b]=a%256,a>>=8},H.prototype.setBytes=function(a){if(16!=a.length)throw new Error("invalid counter bytes size (must be 16 bytes)");this._counter=h(a)},H.prototype.increment=function(){for(var a=15;a>=0;a--){if(255!==this._counter[a]){this._counter[a]++;break}this._counter[a]=0}};var I=function(a,b){if(!(this instanceof I))throw Error("AES must be instanitated with `new`");this.description="Counter",this.name="ctr",b instanceof H||(b=new H(b)),this._counter=b,this._remainingCounter=null,this._remainingCounterIndex=16,this._aes=new C(a)};I.prototype.encrypt=function(a){for(var b=h(a),c=0;c<b.length;c++)16===this._remainingCounterIndex&&(this._remainingCounter=this._aes.encrypt(this._counter._counter),this._remainingCounterIndex=0,this._counter.increment()),b[c]^=this._remainingCounter[this._remainingCounterIndex++];return b},I.prototype.decrypt=I.prototype.encrypt;var J={ecb:D,cbc:E,cfb:F,ofb:G,ctr:I},K={AES:C,Counter:H,ModeOfOperation:J,util:{convertBytesToString:g,convertStringToBytes:j,_slowCreateBuffer:k}};"undefined"!=typeof d?c.exports=K:"function"==typeof a&&a.amd?a(K):(e.aes&&(K._aes=e.aes),e.aesjs=K)}(this)}).call(this,b("buffer").Buffer)},{buffer:41}],13:[function(a,b,c){"use strict";var d=c;d.version=a("../package.json").version,d.utils=a("./elliptic/utils"),d.rand=a("brorand"),d.hmacDRBG=a("./elliptic/hmac-drbg"),d.curve=a("./elliptic/curve"),d.curves=a("./elliptic/curves"),d.ec=a("./elliptic/ec"),d.eddsa=a("./elliptic/eddsa")},{"../package.json":38,"./elliptic/curve":16,"./elliptic/curves":19,"./elliptic/ec":20,"./elliptic/eddsa":23,"./elliptic/hmac-drbg":26,"./elliptic/utils":28,brorand:30}],14:[function(a,b,c){"use strict";function d(a,b){this.type=a,this.p=new f(b.p,16),this.red=b.prime?f.red(b.prime):f.mont(this.p),this.zero=new f(0).toRed(this.red),this.one=new f(1).toRed(this.red),this.two=new f(2).toRed(this.red),this.n=b.n&&new f(b.n,16),this.g=b.g&&this.pointFromJSON(b.g,b.gRed),this._wnafT1=new Array(4),this._wnafT2=new Array(4),this._wnafT3=new Array(4),this._wnafT4=new Array(4);var c=this.n&&this.p.div(this.n);!c||c.cmpn(100)>0?this.redN=null:(this._maxwellTrick=!0,this.redN=this.n.toRed(this.red))}function e(a,b){this.curve=a,this.type=b,this.precomputed=null}var f=a("bn.js"),g=a("../../elliptic"),h=g.utils,i=h.getNAF,j=h.getJSF,k=h.assert;b.exports=d,d.prototype.point=function(){throw new Error("Not implemented")},d.prototype.validate=function(){throw new Error("Not implemented")},d.prototype._fixedNafMul=function(a,b){k(a.precomputed);var c=a._getDoubles(),d=i(b,1),e=(1<<c.step+1)-(c.step%2===0?2:1);e/=3;for(var f=[],g=0;g<d.length;g+=c.step){for(var h=0,b=g+c.step-1;b>=g;b--)h=(h<<1)+d[b];f.push(h)}for(var j=this.jpoint(null,null,null),l=this.jpoint(null,null,null),m=e;m>0;m--){for(var g=0;g<f.length;g++){var h=f[g];h===m?l=l.mixedAdd(c.points[g]):h===-m&&(l=l.mixedAdd(c.points[g].neg()))}j=j.add(l)}return j.toP()},d.prototype._wnafMul=function(a,b){var c=4,d=a._getNAFPoints(c);c=d.wnd;for(var e=d.points,f=i(b,c),g=this.jpoint(null,null,null),h=f.length-1;h>=0;h--){for(var b=0;h>=0&&0===f[h];h--)b++;if(h>=0&&b++,g=g.dblp(b),h<0)break;var j=f[h];k(0!==j),g="affine"===a.type?j>0?g.mixedAdd(e[j-1>>1]):g.mixedAdd(e[-j-1>>1].neg()):j>0?g.add(e[j-1>>1]):g.add(e[-j-1>>1].neg())}return"affine"===a.type?g.toP():g},d.prototype._wnafMulAdd=function(a,b,c,d,e){for(var f=this._wnafT1,g=this._wnafT2,h=this._wnafT3,k=0,l=0;l<d;l++){var m=b[l],n=m._getNAFPoints(a);f[l]=n.wnd,g[l]=n.points}for(var l=d-1;l>=1;l-=2){var o=l-1,p=l;if(1===f[o]&&1===f[p]){var q=[b[o],null,null,b[p]];0===b[o].y.cmp(b[p].y)?(q[1]=b[o].add(b[p]),q[2]=b[o].toJ().mixedAdd(b[p].neg())):0===b[o].y.cmp(b[p].y.redNeg())?(q[1]=b[o].toJ().mixedAdd(b[p]),q[2]=b[o].add(b[p].neg())):(q[1]=b[o].toJ().mixedAdd(b[p]),q[2]=b[o].toJ().mixedAdd(b[p].neg()));var r=[-3,-1,-5,-7,0,7,5,1,3],s=j(c[o],c[p]);k=Math.max(s[0].length,k),h[o]=new Array(k),h[p]=new Array(k);for(var t=0;t<k;t++){var u=0|s[0][t],v=0|s[1][t];h[o][t]=r[3*(u+1)+(v+1)],h[p][t]=0,g[o]=q}}else h[o]=i(c[o],f[o]),h[p]=i(c[p],f[p]),k=Math.max(h[o].length,k),k=Math.max(h[p].length,k)}for(var w=this.jpoint(null,null,null),x=this._wnafT4,l=k;l>=0;l--){for(var y=0;l>=0;){for(var z=!0,t=0;t<d;t++)x[t]=0|h[t][l],0!==x[t]&&(z=!1);if(!z)break;y++,l--}if(l>=0&&y++,w=w.dblp(y),l<0)break;for(var t=0;t<d;t++){var m,A=x[t];0!==A&&(A>0?m=g[t][A-1>>1]:A<0&&(m=g[t][-A-1>>1].neg()),w="affine"===m.type?w.mixedAdd(m):w.add(m))}}for(var l=0;l<d;l++)g[l]=null;return e?w:w.toP()},d.BasePoint=e,e.prototype.eq=function(){throw new Error("Not implemented")},e.prototype.validate=function(){return this.curve.validate(this)},d.prototype.decodePoint=function(a,b){a=h.toArray(a,b);var c=this.p.byteLength();if((4===a[0]||6===a[0]||7===a[0])&&a.length-1===2*c){6===a[0]?k(a[a.length-1]%2===0):7===a[0]&&k(a[a.length-1]%2===1);var d=this.point(a.slice(1,1+c),a.slice(1+c,1+2*c));return d}if((2===a[0]||3===a[0])&&a.length-1===c)return this.pointFromX(a.slice(1,1+c),3===a[0]);throw new Error("Unknown point format")},e.prototype.encodeCompressed=function(a){return this.encode(a,!0)},e.prototype._encode=function(a){var b=this.curve.p.byteLength(),c=this.getX().toArray("be",b);return a?[this.getY().isEven()?2:3].concat(c):[4].concat(c,this.getY().toArray("be",b))},e.prototype.encode=function(a,b){return h.encode(this._encode(b),a)},e.prototype.precompute=function(a){if(this.precomputed)return this;var b={doubles:null,naf:null,beta:null};return b.naf=this._getNAFPoints(8),b.doubles=this._getDoubles(4,a),b.beta=this._getBeta(),this.precomputed=b,this},e.prototype._hasDoubles=function(a){if(!this.precomputed)return!1;var b=this.precomputed.doubles;return!!b&&b.points.length>=Math.ceil((a.bitLength()+1)/b.step)},e.prototype._getDoubles=function(a,b){if(this.precomputed&&this.precomputed.doubles)return this.precomputed.doubles;for(var c=[this],d=this,e=0;e<b;e+=a){for(var f=0;f<a;f++)d=d.dbl();c.push(d)}return{step:a,points:c}},e.prototype._getNAFPoints=function(a){if(this.precomputed&&this.precomputed.naf)return this.precomputed.naf;for(var b=[this],c=(1<<a)-1,d=1===c?null:this.dbl(),e=1;e<c;e++)b[e]=b[e-1].add(d);return{wnd:a,points:b}},e.prototype._getBeta=function(){return null},e.prototype.dblp=function(a){for(var b=this,c=0;c<a;c++)b=b.dbl();return b}},{"../../elliptic":13,"bn.js":29}],15:[function(a,b,c){"use strict";function d(a){this.twisted=1!==(0|a.a),this.mOneA=this.twisted&&(0|a.a)===-1,this.extended=this.mOneA,j.call(this,"edwards",a),this.a=new h(a.a,16).umod(this.red.m),this.a=this.a.toRed(this.red),this.c=new h(a.c,16).toRed(this.red),this.c2=this.c.redSqr(),this.d=new h(a.d,16).toRed(this.red),this.dd=this.d.redAdd(this.d),k(!this.twisted||0===this.c.fromRed().cmpn(1)),this.oneC=1===(0|a.c)}function e(a,b,c,d,e){j.BasePoint.call(this,a,"projective"),null===b&&null===c&&null===d?(this.x=this.curve.zero,this.y=this.curve.one,this.z=this.curve.one,this.t=this.curve.zero,this.zOne=!0):(this.x=new h(b,16),this.y=new h(c,16),this.z=d?new h(d,16):this.curve.one,this.t=e&&new h(e,16),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)),this.t&&!this.t.red&&(this.t=this.t.toRed(this.curve.red)),this.zOne=this.z===this.curve.one,this.curve.extended&&!this.t&&(this.t=this.x.redMul(this.y),this.zOne||(this.t=this.t.redMul(this.z.redInvm()))))}var f=a("../curve"),g=a("../../elliptic"),h=a("bn.js"),i=a("inherits"),j=f.base,k=g.utils.assert;i(d,j),b.exports=d,d.prototype._mulA=function(a){return this.mOneA?a.redNeg():this.a.redMul(a)},d.prototype._mulC=function(a){return this.oneC?a:this.c.redMul(a)},d.prototype.jpoint=function(a,b,c,d){return this.point(a,b,c,d)},d.prototype.pointFromX=function(a,b){a=new h(a,16),a.red||(a=a.toRed(this.red));var c=a.redSqr(),d=this.c2.redSub(this.a.redMul(c)),e=this.one.redSub(this.c2.redMul(this.d).redMul(c)),f=d.redMul(e.redInvm()),g=f.redSqrt();if(0!==g.redSqr().redSub(f).cmp(this.zero))throw new Error("invalid point");var i=g.fromRed().isOdd();return(b&&!i||!b&&i)&&(g=g.redNeg()),this.point(a,g)},d.prototype.pointFromY=function(a,b){a=new h(a,16),a.red||(a=a.toRed(this.red));var c=a.redSqr(),d=c.redSub(this.one),e=c.redMul(this.d).redAdd(this.one),f=d.redMul(e.redInvm());if(0===f.cmp(this.zero)){if(b)throw new Error("invalid point");return this.point(this.zero,a)}var g=f.redSqrt();if(0!==g.redSqr().redSub(f).cmp(this.zero))throw new Error("invalid point");return g.isOdd()!==b&&(g=g.redNeg()),this.point(g,a)},d.prototype.validate=function(a){if(a.isInfinity())return!0;a.normalize();var b=a.x.redSqr(),c=a.y.redSqr(),d=b.redMul(this.a).redAdd(c),e=this.c2.redMul(this.one.redAdd(this.d.redMul(b).redMul(c)));return 0===d.cmp(e)},i(e,j.BasePoint),d.prototype.pointFromJSON=function(a){return e.fromJSON(this,a)},d.prototype.point=function(a,b,c,d){return new e(this,a,b,c,d)},e.fromJSON=function(a,b){return new e(a,b[0],b[1],b[2])},e.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" y: "+this.y.fromRed().toString(16,2)+" z: "+this.z.fromRed().toString(16,2)+">"},e.prototype.isInfinity=function(){return 0===this.x.cmpn(0)&&0===this.y.cmp(this.z)},e.prototype._extDbl=function(){var a=this.x.redSqr(),b=this.y.redSqr(),c=this.z.redSqr();c=c.redIAdd(c);var d=this.curve._mulA(a),e=this.x.redAdd(this.y).redSqr().redISub(a).redISub(b),f=d.redAdd(b),g=f.redSub(c),h=d.redSub(b),i=e.redMul(g),j=f.redMul(h),k=e.redMul(h),l=g.redMul(f);return this.curve.point(i,j,l,k)},e.prototype._projDbl=function(){var a,b,c,d=this.x.redAdd(this.y).redSqr(),e=this.x.redSqr(),f=this.y.redSqr();if(this.curve.twisted){var g=this.curve._mulA(e),h=g.redAdd(f);if(this.zOne)a=d.redSub(e).redSub(f).redMul(h.redSub(this.curve.two)),b=h.redMul(g.redSub(f)),c=h.redSqr().redSub(h).redSub(h);else{var i=this.z.redSqr(),j=h.redSub(i).redISub(i);a=d.redSub(e).redISub(f).redMul(j),b=h.redMul(g.redSub(f)),c=h.redMul(j)}}else{var g=e.redAdd(f),i=this.curve._mulC(this.c.redMul(this.z)).redSqr(),j=g.redSub(i).redSub(i);a=this.curve._mulC(d.redISub(g)).redMul(j),b=this.curve._mulC(g).redMul(e.redISub(f)),c=g.redMul(j)}return this.curve.point(a,b,c)},e.prototype.dbl=function(){return this.isInfinity()?this:this.curve.extended?this._extDbl():this._projDbl()},e.prototype._extAdd=function(a){var b=this.y.redSub(this.x).redMul(a.y.redSub(a.x)),c=this.y.redAdd(this.x).redMul(a.y.redAdd(a.x)),d=this.t.redMul(this.curve.dd).redMul(a.t),e=this.z.redMul(a.z.redAdd(a.z)),f=c.redSub(b),g=e.redSub(d),h=e.redAdd(d),i=c.redAdd(b),j=f.redMul(g),k=h.redMul(i),l=f.redMul(i),m=g.redMul(h);return this.curve.point(j,k,m,l)},e.prototype._projAdd=function(a){var b,c,d=this.z.redMul(a.z),e=d.redSqr(),f=this.x.redMul(a.x),g=this.y.redMul(a.y),h=this.curve.d.redMul(f).redMul(g),i=e.redSub(h),j=e.redAdd(h),k=this.x.redAdd(this.y).redMul(a.x.redAdd(a.y)).redISub(f).redISub(g),l=d.redMul(i).redMul(k);return this.curve.twisted?(b=d.redMul(j).redMul(g.redSub(this.curve._mulA(f))),c=i.redMul(j)):(b=d.redMul(j).redMul(g.redSub(f)),c=this.curve._mulC(i).redMul(j)),this.curve.point(l,b,c)},e.prototype.add=function(a){return this.isInfinity()?a:a.isInfinity()?this:this.curve.extended?this._extAdd(a):this._projAdd(a)},e.prototype.mul=function(a){return this._hasDoubles(a)?this.curve._fixedNafMul(this,a):this.curve._wnafMul(this,a)},e.prototype.mulAdd=function(a,b,c){return this.curve._wnafMulAdd(1,[this,b],[a,c],2,!1)},e.prototype.jmulAdd=function(a,b,c){return this.curve._wnafMulAdd(1,[this,b],[a,c],2,!0)},e.prototype.normalize=function(){if(this.zOne)return this;var a=this.z.redInvm();return this.x=this.x.redMul(a),this.y=this.y.redMul(a),this.t&&(this.t=this.t.redMul(a)),this.z=this.curve.one,this.zOne=!0,this},e.prototype.neg=function(){return this.curve.point(this.x.redNeg(),this.y,this.z,this.t&&this.t.redNeg())},e.prototype.getX=function(){return this.normalize(),this.x.fromRed()},e.prototype.getY=function(){return this.normalize(),this.y.fromRed()},e.prototype.eq=function(a){return this===a||0===this.getX().cmp(a.getX())&&0===this.getY().cmp(a.getY())},e.prototype.eqXToP=function(a){var b=a.toRed(this.curve.red).redMul(this.z);if(0===this.x.cmp(b))return!0;for(var c=a.clone(),d=this.curve.redN.redMul(this.z);;){if(c.iadd(this.curve.n),c.cmp(this.curve.p)>=0)return!1;if(b.redIAdd(d),0===this.x.cmp(b))return!0}return!1},e.prototype.toP=e.prototype.normalize,e.prototype.mixedAdd=e.prototype.add},{"../../elliptic":13,"../curve":16,"bn.js":29,inherits:37}],16:[function(a,b,c){"use strict";var d=c;d.base=a("./base"),d["short"]=a("./short"),d.mont=a("./mont"),d.edwards=a("./edwards")},{"./base":14,"./edwards":15,"./mont":17,"./short":18}],17:[function(a,b,c){"use strict";function d(a){i.call(this,"mont",a),this.a=new g(a.a,16).toRed(this.red),this.b=new g(a.b,16).toRed(this.red),this.i4=new g(4).toRed(this.red).redInvm(),this.two=new g(2).toRed(this.red),this.a24=this.i4.redMul(this.a.redAdd(this.two))}function e(a,b,c){i.BasePoint.call(this,a,"projective"),null===b&&null===c?(this.x=this.curve.one,this.z=this.curve.zero):(this.x=new g(b,16),this.z=new g(c,16),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)))}var f=a("../curve"),g=a("bn.js"),h=a("inherits"),i=f.base,j=a("../../elliptic"),k=j.utils;h(d,i),b.exports=d,d.prototype.validate=function(a){var b=a.normalize().x,c=b.redSqr(),d=c.redMul(b).redAdd(c.redMul(this.a)).redAdd(b),e=d.redSqrt();return 0===e.redSqr().cmp(d)},h(e,i.BasePoint),d.prototype.decodePoint=function(a,b){return this.point(k.toArray(a,b),1)},d.prototype.point=function(a,b){return new e(this,a,b)},d.prototype.pointFromJSON=function(a){return e.fromJSON(this,a)},e.prototype.precompute=function(){},e.prototype._encode=function(){return this.getX().toArray("be",this.curve.p.byteLength())},e.fromJSON=function(a,b){return new e(a,b[0],b[1]||a.one)},e.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" z: "+this.z.fromRed().toString(16,2)+">"},e.prototype.isInfinity=function(){return 0===this.z.cmpn(0)},e.prototype.dbl=function(){var a=this.x.redAdd(this.z),b=a.redSqr(),c=this.x.redSub(this.z),d=c.redSqr(),e=b.redSub(d),f=b.redMul(d),g=e.redMul(d.redAdd(this.curve.a24.redMul(e)));return this.curve.point(f,g)},e.prototype.add=function(){throw new Error("Not supported on Montgomery curve")},e.prototype.diffAdd=function(a,b){var c=this.x.redAdd(this.z),d=this.x.redSub(this.z),e=a.x.redAdd(a.z),f=a.x.redSub(a.z),g=f.redMul(c),h=e.redMul(d),i=b.z.redMul(g.redAdd(h).redSqr()),j=b.x.redMul(g.redISub(h).redSqr());return this.curve.point(i,j)},e.prototype.mul=function(a){for(var b=a.clone(),c=this,d=this.curve.point(null,null),e=this,f=[];0!==b.cmpn(0);b.iushrn(1))f.push(b.andln(1));for(var g=f.length-1;g>=0;g--)0===f[g]?(c=c.diffAdd(d,e),d=d.dbl()):(d=c.diffAdd(d,e),c=c.dbl());return d},e.prototype.mulAdd=function(){throw new Error("Not supported on Montgomery curve")},e.prototype.jumlAdd=function(){throw new Error("Not supported on Montgomery curve")},e.prototype.eq=function(a){return 0===this.getX().cmp(a.getX())},e.prototype.normalize=function(){return this.x=this.x.redMul(this.z.redInvm()),this.z=this.curve.one,this},e.prototype.getX=function(){return this.normalize(),this.x.fromRed()}},{"../../elliptic":13,"../curve":16,"bn.js":29,inherits:37}],18:[function(a,b,c){"use strict";function d(a){k.call(this,"short",a),this.a=new i(a.a,16).toRed(this.red),this.b=new i(a.b,16).toRed(this.red),this.tinv=this.two.redInvm(),this.zeroA=0===this.a.fromRed().cmpn(0),this.threeA=0===this.a.fromRed().sub(this.p).cmpn(-3),this.endo=this._getEndomorphism(a),this._endoWnafT1=new Array(4),this._endoWnafT2=new Array(4)}function e(a,b,c,d){k.BasePoint.call(this,a,"affine"),null===b&&null===c?(this.x=null,this.y=null,this.inf=!0):(this.x=new i(b,16),this.y=new i(c,16),d&&(this.x.forceRed(this.curve.red),this.y.forceRed(this.curve.red)),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.inf=!1)}function f(a,b,c,d){k.BasePoint.call(this,a,"jacobian"),null===b&&null===c&&null===d?(this.x=this.curve.one,this.y=this.curve.one,this.z=new i(0)):(this.x=new i(b,16),this.y=new i(c,16),this.z=new i(d,16)),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)),this.zOne=this.z===this.curve.one}var g=a("../curve"),h=a("../../elliptic"),i=a("bn.js"),j=a("inherits"),k=g.base,l=h.utils.assert;j(d,k),b.exports=d,d.prototype._getEndomorphism=function(a){if(this.zeroA&&this.g&&this.n&&1===this.p.modn(3)){var b,c;if(a.beta)b=new i(a.beta,16).toRed(this.red);else{var d=this._getEndoRoots(this.p);b=d[0].cmp(d[1])<0?d[0]:d[1],b=b.toRed(this.red)}if(a.lambda)c=new i(a.lambda,16);else{var e=this._getEndoRoots(this.n);0===this.g.mul(e[0]).x.cmp(this.g.x.redMul(b))?c=e[0]:(c=e[1],l(0===this.g.mul(c).x.cmp(this.g.x.redMul(b))))}var f;return f=a.basis?a.basis.map(function(a){return{a:new i(a.a,16),b:new i(a.b,16)}}):this._getEndoBasis(c),{beta:b,lambda:c,basis:f}}},d.prototype._getEndoRoots=function(a){var b=a===this.p?this.red:i.mont(a),c=new i(2).toRed(b).redInvm(),d=c.redNeg(),e=new i(3).toRed(b).redNeg().redSqrt().redMul(c),f=d.redAdd(e).fromRed(),g=d.redSub(e).fromRed();return[f,g]},d.prototype._getEndoBasis=function(a){for(var b,c,d,e,f,g,h,j,k,l=this.n.ushrn(Math.floor(this.n.bitLength()/2)),m=a,n=this.n.clone(),o=new i(1),p=new i(0),q=new i(0),r=new i(1),s=0;0!==m.cmpn(0);){var t=n.div(m);j=n.sub(t.mul(m)),k=q.sub(t.mul(o));var u=r.sub(t.mul(p));if(!d&&j.cmp(l)<0)b=h.neg(),c=o,d=j.neg(),e=k;else if(d&&2===++s)break;h=j,n=m,m=j,q=o,o=k,r=p,p=u}f=j.neg(),g=k;var v=d.sqr().add(e.sqr()),w=f.sqr().add(g.sqr());return w.cmp(v)>=0&&(f=b,g=c),d.negative&&(d=d.neg(),e=e.neg()),f.negative&&(f=f.neg(),g=g.neg()),[{a:d,b:e},{a:f,b:g}]},d.prototype._endoSplit=function(a){var b=this.endo.basis,c=b[0],d=b[1],e=d.b.mul(a).divRound(this.n),f=c.b.neg().mul(a).divRound(this.n),g=e.mul(c.a),h=f.mul(d.a),i=e.mul(c.b),j=f.mul(d.b),k=a.sub(g).sub(h),l=i.add(j).neg();return{k1:k,k2:l}},d.prototype.pointFromX=function(a,b){a=new i(a,16),a.red||(a=a.toRed(this.red));var c=a.redSqr().redMul(a).redIAdd(a.redMul(this.a)).redIAdd(this.b),d=c.redSqrt();if(0!==d.redSqr().redSub(c).cmp(this.zero))throw new Error("invalid point");var e=d.fromRed().isOdd();return(b&&!e||!b&&e)&&(d=d.redNeg()),this.point(a,d)},d.prototype.validate=function(a){if(a.inf)return!0;var b=a.x,c=a.y,d=this.a.redMul(b),e=b.redSqr().redMul(b).redIAdd(d).redIAdd(this.b);return 0===c.redSqr().redISub(e).cmpn(0)},d.prototype._endoWnafMulAdd=function(a,b,c){for(var d=this._endoWnafT1,e=this._endoWnafT2,f=0;f<a.length;f++){var g=this._endoSplit(b[f]),h=a[f],i=h._getBeta();g.k1.negative&&(g.k1.ineg(),h=h.neg(!0)),g.k2.negative&&(g.k2.ineg(),i=i.neg(!0)),d[2*f]=h,d[2*f+1]=i,e[2*f]=g.k1,e[2*f+1]=g.k2}for(var j=this._wnafMulAdd(1,d,e,2*f,c),k=0;k<2*f;k++)d[k]=null,e[k]=null;return j},j(e,k.BasePoint),d.prototype.point=function(a,b,c){return new e(this,a,b,c)},d.prototype.pointFromJSON=function(a,b){return e.fromJSON(this,a,b)},e.prototype._getBeta=function(){if(this.curve.endo){var a=this.precomputed;if(a&&a.beta)return a.beta;var b=this.curve.point(this.x.redMul(this.curve.endo.beta),this.y);if(a){var c=this.curve,d=function(a){return c.point(a.x.redMul(c.endo.beta),a.y)};a.beta=b,b.precomputed={beta:null,naf:a.naf&&{wnd:a.naf.wnd,points:a.naf.points.map(d)},doubles:a.doubles&&{step:a.doubles.step,points:a.doubles.points.map(d)}}}return b}},e.prototype.toJSON=function(){return this.precomputed?[this.x,this.y,this.precomputed&&{doubles:this.precomputed.doubles&&{step:this.precomputed.doubles.step,points:this.precomputed.doubles.points.slice(1)},naf:this.precomputed.naf&&{wnd:this.precomputed.naf.wnd,points:this.precomputed.naf.points.slice(1)}}]:[this.x,this.y]},e.fromJSON=function(a,b,c){function d(b){return a.point(b[0],b[1],c)}"string"==typeof b&&(b=JSON.parse(b));var e=a.point(b[0],b[1],c);if(!b[2])return e;var f=b[2];return e.precomputed={beta:null,doubles:f.doubles&&{step:f.doubles.step,points:[e].concat(f.doubles.points.map(d))},naf:f.naf&&{wnd:f.naf.wnd,points:[e].concat(f.naf.points.map(d))}},e},e.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" y: "+this.y.fromRed().toString(16,2)+">"},e.prototype.isInfinity=function(){return this.inf},e.prototype.add=function(a){if(this.inf)return a;if(a.inf)return this;if(this.eq(a))return this.dbl();if(this.neg().eq(a))return this.curve.point(null,null);if(0===this.x.cmp(a.x))return this.curve.point(null,null);var b=this.y.redSub(a.y);0!==b.cmpn(0)&&(b=b.redMul(this.x.redSub(a.x).redInvm()));var c=b.redSqr().redISub(this.x).redISub(a.x),d=b.redMul(this.x.redSub(c)).redISub(this.y);return this.curve.point(c,d)},e.prototype.dbl=function(){if(this.inf)return this;var a=this.y.redAdd(this.y);if(0===a.cmpn(0))return this.curve.point(null,null);var b=this.curve.a,c=this.x.redSqr(),d=a.redInvm(),e=c.redAdd(c).redIAdd(c).redIAdd(b).redMul(d),f=e.redSqr().redISub(this.x.redAdd(this.x)),g=e.redMul(this.x.redSub(f)).redISub(this.y);return this.curve.point(f,g)},e.prototype.getX=function(){return this.x.fromRed()},e.prototype.getY=function(){return this.y.fromRed()},e.prototype.mul=function(a){return a=new i(a,16),this._hasDoubles(a)?this.curve._fixedNafMul(this,a):this.curve.endo?this.curve._endoWnafMulAdd([this],[a]):this.curve._wnafMul(this,a)},e.prototype.mulAdd=function(a,b,c){var d=[this,b],e=[a,c];return this.curve.endo?this.curve._endoWnafMulAdd(d,e):this.curve._wnafMulAdd(1,d,e,2)},e.prototype.jmulAdd=function(a,b,c){var d=[this,b],e=[a,c];return this.curve.endo?this.curve._endoWnafMulAdd(d,e,!0):this.curve._wnafMulAdd(1,d,e,2,!0)},e.prototype.eq=function(a){return this===a||this.inf===a.inf&&(this.inf||0===this.x.cmp(a.x)&&0===this.y.cmp(a.y))},e.prototype.neg=function(a){if(this.inf)return this;var b=this.curve.point(this.x,this.y.redNeg());if(a&&this.precomputed){var c=this.precomputed,d=function(a){return a.neg()};b.precomputed={naf:c.naf&&{wnd:c.naf.wnd,points:c.naf.points.map(d)},doubles:c.doubles&&{step:c.doubles.step,points:c.doubles.points.map(d)}}}return b},e.prototype.toJ=function(){if(this.inf)return this.curve.jpoint(null,null,null);var a=this.curve.jpoint(this.x,this.y,this.curve.one);return a},j(f,k.BasePoint),d.prototype.jpoint=function(a,b,c){return new f(this,a,b,c)},f.prototype.toP=function(){if(this.isInfinity())return this.curve.point(null,null);var a=this.z.redInvm(),b=a.redSqr(),c=this.x.redMul(b),d=this.y.redMul(b).redMul(a);return this.curve.point(c,d)},f.prototype.neg=function(){return this.curve.jpoint(this.x,this.y.redNeg(),this.z)},f.prototype.add=function(a){if(this.isInfinity())return a;if(a.isInfinity())return this;var b=a.z.redSqr(),c=this.z.redSqr(),d=this.x.redMul(b),e=a.x.redMul(c),f=this.y.redMul(b.redMul(a.z)),g=a.y.redMul(c.redMul(this.z)),h=d.redSub(e),i=f.redSub(g);if(0===h.cmpn(0))return 0!==i.cmpn(0)?this.curve.jpoint(null,null,null):this.dbl();var j=h.redSqr(),k=j.redMul(h),l=d.redMul(j),m=i.redSqr().redIAdd(k).redISub(l).redISub(l),n=i.redMul(l.redISub(m)).redISub(f.redMul(k)),o=this.z.redMul(a.z).redMul(h);return this.curve.jpoint(m,n,o)},f.prototype.mixedAdd=function(a){if(this.isInfinity())return a.toJ();if(a.isInfinity())return this;var b=this.z.redSqr(),c=this.x,d=a.x.redMul(b),e=this.y,f=a.y.redMul(b).redMul(this.z),g=c.redSub(d),h=e.redSub(f);if(0===g.cmpn(0))return 0!==h.cmpn(0)?this.curve.jpoint(null,null,null):this.dbl();var i=g.redSqr(),j=i.redMul(g),k=c.redMul(i),l=h.redSqr().redIAdd(j).redISub(k).redISub(k),m=h.redMul(k.redISub(l)).redISub(e.redMul(j)),n=this.z.redMul(g);return this.curve.jpoint(l,m,n)},f.prototype.dblp=function(a){if(0===a)return this;if(this.isInfinity())return this;if(!a)return this.dbl();if(this.curve.zeroA||this.curve.threeA){for(var b=this,c=0;c<a;c++)b=b.dbl();return b}for(var d=this.curve.a,e=this.curve.tinv,f=this.x,g=this.y,h=this.z,i=h.redSqr().redSqr(),j=g.redAdd(g),c=0;c<a;c++){var k=f.redSqr(),l=j.redSqr(),m=l.redSqr(),n=k.redAdd(k).redIAdd(k).redIAdd(d.redMul(i)),o=f.redMul(l),p=n.redSqr().redISub(o.redAdd(o)),q=o.redISub(p),r=n.redMul(q);r=r.redIAdd(r).redISub(m);var s=j.redMul(h);c+1<a&&(i=i.redMul(m)),f=p,h=s,j=r}return this.curve.jpoint(f,j.redMul(e),h)},f.prototype.dbl=function(){return this.isInfinity()?this:this.curve.zeroA?this._zeroDbl():this.curve.threeA?this._threeDbl():this._dbl()},f.prototype._zeroDbl=function(){var a,b,c;if(this.zOne){var d=this.x.redSqr(),e=this.y.redSqr(),f=e.redSqr(),g=this.x.redAdd(e).redSqr().redISub(d).redISub(f);g=g.redIAdd(g);var h=d.redAdd(d).redIAdd(d),i=h.redSqr().redISub(g).redISub(g),j=f.redIAdd(f);j=j.redIAdd(j),j=j.redIAdd(j),a=i,b=h.redMul(g.redISub(i)).redISub(j),c=this.y.redAdd(this.y)}else{var k=this.x.redSqr(),l=this.y.redSqr(),m=l.redSqr(),n=this.x.redAdd(l).redSqr().redISub(k).redISub(m);n=n.redIAdd(n);var o=k.redAdd(k).redIAdd(k),p=o.redSqr(),q=m.redIAdd(m);q=q.redIAdd(q),q=q.redIAdd(q),a=p.redISub(n).redISub(n),b=o.redMul(n.redISub(a)).redISub(q),c=this.y.redMul(this.z),c=c.redIAdd(c)}return this.curve.jpoint(a,b,c)},f.prototype._threeDbl=function(){var a,b,c;if(this.zOne){var d=this.x.redSqr(),e=this.y.redSqr(),f=e.redSqr(),g=this.x.redAdd(e).redSqr().redISub(d).redISub(f);g=g.redIAdd(g);var h=d.redAdd(d).redIAdd(d).redIAdd(this.curve.a),i=h.redSqr().redISub(g).redISub(g);a=i;var j=f.redIAdd(f);j=j.redIAdd(j),j=j.redIAdd(j),b=h.redMul(g.redISub(i)).redISub(j),c=this.y.redAdd(this.y)}else{var k=this.z.redSqr(),l=this.y.redSqr(),m=this.x.redMul(l),n=this.x.redSub(k).redMul(this.x.redAdd(k));n=n.redAdd(n).redIAdd(n);var o=m.redIAdd(m);o=o.redIAdd(o);var p=o.redAdd(o);a=n.redSqr().redISub(p),c=this.y.redAdd(this.z).redSqr().redISub(l).redISub(k);var q=l.redSqr();q=q.redIAdd(q),q=q.redIAdd(q),q=q.redIAdd(q),b=n.redMul(o.redISub(a)).redISub(q)}return this.curve.jpoint(a,b,c)},f.prototype._dbl=function(){var a=this.curve.a,b=this.x,c=this.y,d=this.z,e=d.redSqr().redSqr(),f=b.redSqr(),g=c.redSqr(),h=f.redAdd(f).redIAdd(f).redIAdd(a.redMul(e)),i=b.redAdd(b);i=i.redIAdd(i);var j=i.redMul(g),k=h.redSqr().redISub(j.redAdd(j)),l=j.redISub(k),m=g.redSqr();m=m.redIAdd(m),m=m.redIAdd(m),m=m.redIAdd(m);var n=h.redMul(l).redISub(m),o=c.redAdd(c).redMul(d);return this.curve.jpoint(k,n,o)},f.prototype.trpl=function(){if(!this.curve.zeroA)return this.dbl().add(this);var a=this.x.redSqr(),b=this.y.redSqr(),c=this.z.redSqr(),d=b.redSqr(),e=a.redAdd(a).redIAdd(a),f=e.redSqr(),g=this.x.redAdd(b).redSqr().redISub(a).redISub(d);
 g=g.redIAdd(g),g=g.redAdd(g).redIAdd(g),g=g.redISub(f);var h=g.redSqr(),i=d.redIAdd(d);i=i.redIAdd(i),i=i.redIAdd(i),i=i.redIAdd(i);var j=e.redIAdd(g).redSqr().redISub(f).redISub(h).redISub(i),k=b.redMul(j);k=k.redIAdd(k),k=k.redIAdd(k);var l=this.x.redMul(h).redISub(k);l=l.redIAdd(l),l=l.redIAdd(l);var m=this.y.redMul(j.redMul(i.redISub(j)).redISub(g.redMul(h)));m=m.redIAdd(m),m=m.redIAdd(m),m=m.redIAdd(m);var n=this.z.redAdd(g).redSqr().redISub(c).redISub(h);return this.curve.jpoint(l,m,n)},f.prototype.mul=function(a,b){return a=new i(a,b),this.curve._wnafMul(this,a)},f.prototype.eq=function(a){if("affine"===a.type)return this.eq(a.toJ());if(this===a)return!0;var b=this.z.redSqr(),c=a.z.redSqr();if(0!==this.x.redMul(c).redISub(a.x.redMul(b)).cmpn(0))return!1;var d=b.redMul(this.z),e=c.redMul(a.z);return 0===this.y.redMul(e).redISub(a.y.redMul(d)).cmpn(0)},f.prototype.eqXToP=function(a){var b=this.z.redSqr(),c=a.toRed(this.curve.red).redMul(b);if(0===this.x.cmp(c))return!0;for(var d=a.clone(),e=this.curve.redN.redMul(b);;){if(d.iadd(this.curve.n),d.cmp(this.curve.p)>=0)return!1;if(c.redIAdd(e),0===this.x.cmp(c))return!0}return!1},f.prototype.inspect=function(){return this.isInfinity()?"<EC JPoint Infinity>":"<EC JPoint x: "+this.x.toString(16,2)+" y: "+this.y.toString(16,2)+" z: "+this.z.toString(16,2)+">"},f.prototype.isInfinity=function(){return 0===this.z.cmpn(0)}},{"../../elliptic":13,"../curve":16,"bn.js":29,inherits:37}],19:[function(a,b,c){"use strict";function d(a){"short"===a.type?this.curve=new h.curve["short"](a):"edwards"===a.type?this.curve=new h.curve.edwards(a):this.curve=new h.curve.mont(a),this.g=this.curve.g,this.n=this.curve.n,this.hash=a.hash,i(this.g.validate(),"Invalid curve"),i(this.g.mul(this.n).isInfinity(),"Invalid curve, G*N != O")}function e(a,b){Object.defineProperty(f,a,{configurable:!0,enumerable:!0,get:function(){var c=new d(b);return Object.defineProperty(f,a,{configurable:!0,enumerable:!0,value:c}),c}})}var f=c,g=a("hash.js"),h=a("../elliptic"),i=h.utils.assert;f.PresetCurve=d,e("p192",{type:"short",prime:"p192",p:"ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff",a:"ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc",b:"64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1",n:"ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831",hash:g.sha256,gRed:!1,g:["188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012","07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811"]}),e("p224",{type:"short",prime:"p224",p:"ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001",a:"ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe",b:"b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4",n:"ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d",hash:g.sha256,gRed:!1,g:["b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21","bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34"]}),e("p256",{type:"short",prime:null,p:"ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff",a:"ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc",b:"5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b",n:"ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551",hash:g.sha256,gRed:!1,g:["6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296","4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5"]}),e("p384",{type:"short",prime:null,p:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe ffffffff 00000000 00000000 ffffffff",a:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe ffffffff 00000000 00000000 fffffffc",b:"b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f 5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef",n:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 f4372ddf 581a0db2 48b0a77a ecec196a ccc52973",hash:g.sha384,gRed:!1,g:["aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 5502f25d bf55296c 3a545e38 72760ab7","3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 0a60b1ce 1d7e819d 7a431d7c 90ea0e5f"]}),e("p521",{type:"short",prime:null,p:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff",a:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffc",b:"00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b 99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd 3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00",n:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409",hash:g.sha512,gRed:!1,g:["000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66","00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 3fad0761 353c7086 a272c240 88be9476 9fd16650"]}),e("curve25519",{type:"mont",prime:"p25519",p:"7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed",a:"76d06",b:"0",n:"1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed",hash:g.sha256,gRed:!1,g:["9"]}),e("ed25519",{type:"edwards",prime:"p25519",p:"7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed",a:"-1",c:"1",d:"52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3",n:"1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed",hash:g.sha256,gRed:!1,g:["216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a","6666666666666666666666666666666666666666666666666666666666666658"]});var j;try{j=a("./precomputed/secp256k1")}catch(k){j=void 0}e("secp256k1",{type:"short",prime:"k256",p:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f",a:"0",b:"7",n:"ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141",h:"1",hash:g.sha256,beta:"7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee",lambda:"5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72",basis:[{a:"3086d221a7d46bcde86c90e49284eb15",b:"-e4437ed6010e88286f547fa90abfe4c3"},{a:"114ca50f7a8e2f3f657c1108d9d44cfd8",b:"3086d221a7d46bcde86c90e49284eb15"}],gRed:!1,g:["79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",j]})},{"../elliptic":13,"./precomputed/secp256k1":27,"hash.js":31}],20:[function(a,b,c){"use strict";function d(a){return this instanceof d?("string"==typeof a&&(h(f.curves.hasOwnProperty(a),"Unknown curve "+a),a=f.curves[a]),a instanceof f.curves.PresetCurve&&(a={curve:a}),this.curve=a.curve.curve,this.n=this.curve.n,this.nh=this.n.ushrn(1),this.g=this.curve.g,this.g=a.curve.g,this.g.precompute(a.curve.n.bitLength()+1),void(this.hash=a.hash||a.curve.hash)):new d(a)}var e=a("bn.js"),f=a("../../elliptic"),g=f.utils,h=g.assert,i=a("./key"),j=a("./signature");b.exports=d,d.prototype.keyPair=function(a){return new i(this,a)},d.prototype.keyFromPrivate=function(a,b){return i.fromPrivate(this,a,b)},d.prototype.keyFromPublic=function(a,b){return i.fromPublic(this,a,b)},d.prototype.genKeyPair=function(a){a||(a={});for(var b=new f.hmacDRBG({hash:this.hash,pers:a.pers,entropy:a.entropy||f.rand(this.hash.hmacStrength),nonce:this.n.toArray()}),c=this.n.byteLength(),d=this.n.sub(new e(2));;){var g=new e(b.generate(c));if(!(g.cmp(d)>0))return g.iaddn(1),this.keyFromPrivate(g)}},d.prototype._truncateToN=function(a,b){var c=8*a.byteLength()-this.n.bitLength();return c>0&&(a=a.ushrn(c)),!b&&a.cmp(this.n)>=0?a.sub(this.n):a},d.prototype.sign=function(a,b,c,d){"object"==typeof c&&(d=c,c=null),d||(d={}),b=this.keyFromPrivate(b,c),a=this._truncateToN(new e(a,16));for(var g=this.n.byteLength(),h=b.getPrivate().toArray("be",g),i=a.toArray("be",g),k=new f.hmacDRBG({hash:this.hash,entropy:h,nonce:i,pers:d.pers,persEnc:d.persEnc}),l=this.n.sub(new e(1)),m=0;!0;m++){var n=d.k?d.k(m):new e(k.generate(this.n.byteLength()));if(n=this._truncateToN(n,!0),!(n.cmpn(1)<=0||n.cmp(l)>=0)){var o=this.g.mul(n);if(!o.isInfinity()){var p=o.getX(),q=p.umod(this.n);if(0!==q.cmpn(0)){var r=n.invm(this.n).mul(q.mul(b.getPrivate()).iadd(a));if(r=r.umod(this.n),0!==r.cmpn(0)){var s=(o.getY().isOdd()?1:0)|(0!==p.cmp(q)?2:0);return d.canonical&&r.cmp(this.nh)>0&&(r=this.n.sub(r),s^=1),new j({r:q,s:r,recoveryParam:s})}}}}}},d.prototype.verify=function(a,b,c,d){a=this._truncateToN(new e(a,16)),c=this.keyFromPublic(c,d),b=new j(b,"hex");var f=b.r,g=b.s;if(f.cmpn(1)<0||f.cmp(this.n)>=0)return!1;if(g.cmpn(1)<0||g.cmp(this.n)>=0)return!1;var h=g.invm(this.n),i=h.mul(a).umod(this.n),k=h.mul(f).umod(this.n);if(!this.curve._maxwellTrick){var l=this.g.mulAdd(i,c.getPublic(),k);return!l.isInfinity()&&0===l.getX().umod(this.n).cmp(f)}var l=this.g.jmulAdd(i,c.getPublic(),k);return!l.isInfinity()&&l.eqXToP(f)},d.prototype.recoverPubKey=function(a,b,c,d){h((3&c)===c,"The recovery param is more than two bits"),b=new j(b,d);var f=this.n,g=new e(a),i=b.r,k=b.s,l=1&c,m=c>>1;if(i.cmp(this.curve.p.umod(this.curve.n))>=0&&m)throw new Error("Unable to find sencond key candinate");i=m?this.curve.pointFromX(i.add(this.curve.n),l):this.curve.pointFromX(i,l);var n=f.sub(g),o=b.r.invm(f);return this.g.mulAdd(n,i,k).mul(o)},d.prototype.getKeyRecoveryParam=function(a,b,c,d){if(b=new j(b,d),null!==b.recoveryParam)return b.recoveryParam;for(var e=0;e<4;e++){var f;try{f=this.recoverPubKey(a,b,e)}catch(a){continue}if(f.eq(c))return e}throw new Error("Unable to find valid recovery factor")}},{"../../elliptic":13,"./key":21,"./signature":22,"bn.js":29}],21:[function(a,b,c){"use strict";function d(a,b){this.ec=a,this.priv=null,this.pub=null,b.priv&&this._importPrivate(b.priv,b.privEnc),b.pub&&this._importPublic(b.pub,b.pubEnc)}var e=a("bn.js");b.exports=d,d.fromPublic=function(a,b,c){return b instanceof d?b:new d(a,{pub:b,pubEnc:c})},d.fromPrivate=function(a,b,c){return b instanceof d?b:new d(a,{priv:b,privEnc:c})},d.prototype.validate=function(){var a=this.getPublic();return a.isInfinity()?{result:!1,reason:"Invalid public key"}:a.validate()?a.mul(this.ec.curve.n).isInfinity()?{result:!0,reason:null}:{result:!1,reason:"Public key * N != O"}:{result:!1,reason:"Public key is not a point"}},d.prototype.getPublic=function(a,b){return"string"==typeof a&&(b=a,a=null),this.pub||(this.pub=this.ec.g.mul(this.priv)),b?this.pub.encode(b,a):this.pub},d.prototype.getPrivate=function(a){return"hex"===a?this.priv.toString(16,2):this.priv},d.prototype._importPrivate=function(a,b){this.priv=new e(a,b||16),this.priv=this.priv.umod(this.ec.curve.n)},d.prototype._importPublic=function(a,b){return a.x||a.y?void(this.pub=this.ec.curve.point(a.x,a.y)):void(this.pub=this.ec.curve.decodePoint(a,b))},d.prototype.derive=function(a){return a.mul(this.priv).getX()},d.prototype.sign=function(a,b,c){return this.ec.sign(a,this,b,c)},d.prototype.verify=function(a,b){return this.ec.verify(a,b,this)},d.prototype.inspect=function(){return"<Key priv: "+(this.priv&&this.priv.toString(16,2))+" pub: "+(this.pub&&this.pub.inspect())+" >"}},{"bn.js":29}],22:[function(a,b,c){"use strict";function d(a,b){return a instanceof d?a:void(this._importDER(a,b)||(l(a.r&&a.s,"Signature without r or s"),this.r=new i(a.r,16),this.s=new i(a.s,16),void 0===a.recoveryParam?this.recoveryParam=null:this.recoveryParam=a.recoveryParam))}function e(){this.place=0}function f(a,b){var c=a[b.place++];if(!(128&c))return c;for(var d=15&c,e=0,f=0,g=b.place;f<d;f++,g++)e<<=8,e|=a[g];return b.place=g,e}function g(a){for(var b=0,c=a.length-1;!a[b]&&!(128&a[b+1])&&b<c;)b++;return 0===b?a:a.slice(b)}function h(a,b){if(b<128)return void a.push(b);var c=1+(Math.log(b)/Math.LN2>>>3);for(a.push(128|c);--c;)a.push(b>>>(c<<3)&255);a.push(b)}var i=a("bn.js"),j=a("../../elliptic"),k=j.utils,l=k.assert;b.exports=d,d.prototype._importDER=function(a,b){a=k.toArray(a,b);var c=new e;if(48!==a[c.place++])return!1;var d=f(a,c);if(d+c.place!==a.length)return!1;if(2!==a[c.place++])return!1;var g=f(a,c),h=a.slice(c.place,g+c.place);if(c.place+=g,2!==a[c.place++])return!1;var j=f(a,c);if(a.length!==j+c.place)return!1;var l=a.slice(c.place,j+c.place);return 0===h[0]&&128&h[1]&&(h=h.slice(1)),0===l[0]&&128&l[1]&&(l=l.slice(1)),this.r=new i(h),this.s=new i(l),this.recoveryParam=null,!0},d.prototype.toDER=function(a){var b=this.r.toArray(),c=this.s.toArray();for(128&b[0]&&(b=[0].concat(b)),128&c[0]&&(c=[0].concat(c)),b=g(b),c=g(c);!(c[0]||128&c[1]);)c=c.slice(1);var d=[2];h(d,b.length),d=d.concat(b),d.push(2),h(d,c.length);var e=d.concat(c),f=[48];return h(f,e.length),f=f.concat(e),k.encode(f,a)}},{"../../elliptic":13,"bn.js":29}],23:[function(a,b,c){"use strict";function d(a){if(h("ed25519"===a,"only tested with ed25519 so far"),!(this instanceof d))return new d(a);var a=f.curves[a].curve;this.curve=a,this.g=a.g,this.g.precompute(a.n.bitLength()+1),this.pointClass=a.point().constructor,this.encodingLength=Math.ceil(a.n.bitLength()/8),this.hash=e.sha512}var e=a("hash.js"),f=a("../../elliptic"),g=f.utils,h=g.assert,i=g.parseBytes,j=a("./key"),k=a("./signature");b.exports=d,d.prototype.sign=function(a,b){a=i(a);var c=this.keyFromSecret(b),d=this.hashInt(c.messagePrefix(),a),e=this.g.mul(d),f=this.encodePoint(e),g=this.hashInt(f,c.pubBytes(),a).mul(c.priv()),h=d.add(g).umod(this.curve.n);return this.makeSignature({R:e,S:h,Rencoded:f})},d.prototype.verify=function(a,b,c){a=i(a),b=this.makeSignature(b);var d=this.keyFromPublic(c),e=this.hashInt(b.Rencoded(),d.pubBytes(),a),f=this.g.mul(b.S()),g=b.R().add(d.pub().mul(e));return g.eq(f)},d.prototype.hashInt=function(){for(var a=this.hash(),b=0;b<arguments.length;b++)a.update(arguments[b]);return g.intFromLE(a.digest()).umod(this.curve.n)},d.prototype.keyFromPublic=function(a){return j.fromPublic(this,a)},d.prototype.keyFromSecret=function(a){return j.fromSecret(this,a)},d.prototype.makeSignature=function(a){return a instanceof k?a:new k(this,a)},d.prototype.encodePoint=function(a){var b=a.getY().toArray("le",this.encodingLength);return b[this.encodingLength-1]|=a.getX().isOdd()?128:0,b},d.prototype.decodePoint=function(a){a=g.parseBytes(a);var b=a.length-1,c=a.slice(0,b).concat(a[b]&-129),d=0!==(128&a[b]),e=g.intFromLE(c);return this.curve.pointFromY(e,d)},d.prototype.encodeInt=function(a){return a.toArray("le",this.encodingLength)},d.prototype.decodeInt=function(a){return g.intFromLE(a)},d.prototype.isPoint=function(a){return a instanceof this.pointClass}},{"../../elliptic":13,"./key":24,"./signature":25,"hash.js":31}],24:[function(a,b,c){"use strict";function d(a,b){this.eddsa=a,this._secret=h(b.secret),a.isPoint(b.pub)?this._pub=b.pub:this._pubBytes=h(b.pub)}var e=a("../../elliptic"),f=e.utils,g=f.assert,h=f.parseBytes,i=f.cachedProperty;d.fromPublic=function(a,b){return b instanceof d?b:new d(a,{pub:b})},d.fromSecret=function(a,b){return b instanceof d?b:new d(a,{secret:b})},d.prototype.secret=function(){return this._secret},i(d,"pubBytes",function(){return this.eddsa.encodePoint(this.pub())}),i(d,"pub",function(){return this._pubBytes?this.eddsa.decodePoint(this._pubBytes):this.eddsa.g.mul(this.priv())}),i(d,"privBytes",function(){var a=this.eddsa,b=this.hash(),c=a.encodingLength-1,d=b.slice(0,a.encodingLength);return d[0]&=248,d[c]&=127,d[c]|=64,d}),i(d,"priv",function(){return this.eddsa.decodeInt(this.privBytes())}),i(d,"hash",function(){return this.eddsa.hash().update(this.secret()).digest()}),i(d,"messagePrefix",function(){return this.hash().slice(this.eddsa.encodingLength)}),d.prototype.sign=function(a){return g(this._secret,"KeyPair can only verify"),this.eddsa.sign(a,this)},d.prototype.verify=function(a,b){return this.eddsa.verify(a,b,this)},d.prototype.getSecret=function(a){return g(this._secret,"KeyPair is public only"),f.encode(this.secret(),a)},d.prototype.getPublic=function(a){return f.encode(this.pubBytes(),a)},b.exports=d},{"../../elliptic":13}],25:[function(a,b,c){"use strict";function d(a,b){this.eddsa=a,"object"!=typeof b&&(b=j(b)),Array.isArray(b)&&(b={R:b.slice(0,a.encodingLength),S:b.slice(a.encodingLength)}),h(b.R&&b.S,"Signature without R or S"),a.isPoint(b.R)&&(this._R=b.R),b.S instanceof e&&(this._S=b.S),this._Rencoded=Array.isArray(b.R)?b.R:b.Rencoded,this._Sencoded=Array.isArray(b.S)?b.S:b.Sencoded}var e=a("bn.js"),f=a("../../elliptic"),g=f.utils,h=g.assert,i=g.cachedProperty,j=g.parseBytes;i(d,"S",function(){return this.eddsa.decodeInt(this.Sencoded())}),i(d,"R",function(){return this.eddsa.decodePoint(this.Rencoded())}),i(d,"Rencoded",function(){return this.eddsa.encodePoint(this.R())}),i(d,"Sencoded",function(){return this.eddsa.encodeInt(this.S())}),d.prototype.toBytes=function(){return this.Rencoded().concat(this.Sencoded())},d.prototype.toHex=function(){return g.encode(this.toBytes(),"hex").toUpperCase()},b.exports=d},{"../../elliptic":13,"bn.js":29}],26:[function(a,b,c){"use strict";function d(a){if(!(this instanceof d))return new d(a);this.hash=a.hash,this.predResist=!!a.predResist,this.outLen=this.hash.outSize,this.minEntropy=a.minEntropy||this.hash.hmacStrength,this.reseed=null,this.reseedInterval=null,this.K=null,this.V=null;var b=g.toArray(a.entropy,a.entropyEnc),c=g.toArray(a.nonce,a.nonceEnc),e=g.toArray(a.pers,a.persEnc);h(b.length>=this.minEntropy/8,"Not enough entropy. Minimum is: "+this.minEntropy+" bits"),this._init(b,c,e)}var e=a("hash.js"),f=a("../elliptic"),g=f.utils,h=g.assert;b.exports=d,d.prototype._init=function(a,b,c){var d=a.concat(b).concat(c);this.K=new Array(this.outLen/8),this.V=new Array(this.outLen/8);for(var e=0;e<this.V.length;e++)this.K[e]=0,this.V[e]=1;this._update(d),this.reseed=1,this.reseedInterval=281474976710656},d.prototype._hmac=function(){return new e.hmac(this.hash,this.K)},d.prototype._update=function(a){var b=this._hmac().update(this.V).update([0]);a&&(b=b.update(a)),this.K=b.digest(),this.V=this._hmac().update(this.V).digest(),a&&(this.K=this._hmac().update(this.V).update([1]).update(a).digest(),this.V=this._hmac().update(this.V).digest())},d.prototype.reseed=function(a,b,c,d){"string"!=typeof b&&(d=c,c=b,b=null),a=g.toBuffer(a,b),c=g.toBuffer(c,d),h(a.length>=this.minEntropy/8,"Not enough entropy. Minimum is: "+this.minEntropy+" bits"),this._update(a.concat(c||[])),this.reseed=1},d.prototype.generate=function(a,b,c,d){if(this.reseed>this.reseedInterval)throw new Error("Reseed is required");"string"!=typeof b&&(d=c,c=b,b=null),c&&(c=g.toArray(c,d),this._update(c));for(var e=[];e.length<a;)this.V=this._hmac().update(this.V).digest(),e=e.concat(this.V);var f=e.slice(0,a);return 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ra=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(ra>>>26)|0,ra&=67108863,d=Math.imul(r,P),e=Math.imul(r,Q),e=e+Math.imul(s,P)|0,f=Math.imul(s,Q),d=d+Math.imul(o,S)|0,e=e+Math.imul(o,T)|0,e=e+Math.imul(p,S)|0,f=f+Math.imul(p,T)|0,d=d+Math.imul(l,V)|0,e=e+Math.imul(l,W)|0,e=e+Math.imul(m,V)|0,f=f+Math.imul(m,W)|0;var sa=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(sa>>>26)|0,sa&=67108863,d=Math.imul(u,P),e=Math.imul(u,Q),e=e+Math.imul(v,P)|0,f=Math.imul(v,Q),d=d+Math.imul(r,S)|0,e=e+Math.imul(r,T)|0,e=e+Math.imul(s,S)|0,f=f+Math.imul(s,T)|0,d=d+Math.imul(o,V)|0,e=e+Math.imul(o,W)|0,e=e+Math.imul(p,V)|0,f=f+Math.imul(p,W)|0,d=d+Math.imul(l,Y)|0,e=e+Math.imul(l,Z)|0,e=e+Math.imul(m,Y)|0,f=f+Math.imul(m,Z)|0;var ta=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(ta>>>26)|0,ta&=67108863,d=Math.imul(x,P),e=Math.imul(x,Q),e=e+Math.imul(y,P)|0,f=Math.imul(y,Q),d=d+Math.imul(u,S)|0,e=e+Math.imul(u,T)|0,e=e+Math.imul(v,S)|0,f=f+Math.imul(v,T)|0,d=d+Math.imul(r,V)|0,e=e+Math.imul(r,W)|0,e=e+Math.imul(s,V)|0,f=f+Math.imul(s,W)|0,d=d+Math.imul(o,Y)|0,e=e+Math.imul(o,Z)|0,e=e+Math.imul(p,Y)|0,f=f+Math.imul(p,Z)|0,d=d+Math.imul(l,_)|0,e=e+Math.imul(l,aa)|0,e=e+Math.imul(m,_)|0,f=f+Math.imul(m,aa)|0;var ua=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(ua>>>26)|0,ua&=67108863,d=Math.imul(A,P),e=Math.imul(A,Q),e=e+Math.imul(B,P)|0,f=Math.imul(B,Q),d=d+Math.imul(x,S)|0,e=e+Math.imul(x,T)|0,e=e+Math.imul(y,S)|0,f=f+Math.imul(y,T)|0,d=d+Math.imul(u,V)|0,e=e+Math.imul(u,W)|0,e=e+Math.imul(v,V)|0,f=f+Math.imul(v,W)|0,d=d+Math.imul(r,Y)|0,e=e+Math.imul(r,Z)|0,e=e+Math.imul(s,Y)|0,f=f+Math.imul(s,Z)|0,d=d+Math.imul(o,_)|0,e=e+Math.imul(o,aa)|0,e=e+Math.imul(p,_)|0,f=f+Math.imul(p,aa)|0,d=d+Math.imul(l,ca)|0,e=e+Math.imul(l,da)|0,e=e+Math.imul(m,ca)|0,f=f+Math.imul(m,da)|0;var va=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(va>>>26)|0,va&=67108863,d=Math.imul(D,P),e=Math.imul(D,Q),e=e+Math.imul(E,P)|0,f=Math.imul(E,Q),d=d+Math.imul(A,S)|0,e=e+Math.imul(A,T)|0,e=e+Math.imul(B,S)|0,f=f+Math.imul(B,T)|0,d=d+Math.imul(x,V)|0,e=e+Math.imul(x,W)|0,e=e+Math.imul(y,V)|0,f=f+Math.imul(y,W)|0,d=d+Math.imul(u,Y)|0,e=e+Math.imul(u,Z)|0,e=e+Math.imul(v,Y)|0,f=f+Math.imul(v,Z)|0,d=d+Math.imul(r,_)|0,e=e+Math.imul(r,aa)|0,e=e+Math.imul(s,_)|0,f=f+Math.imul(s,aa)|0,d=d+Math.imul(o,ca)|0,e=e+Math.imul(o,da)|0,e=e+Math.imul(p,ca)|0,f=f+Math.imul(p,da)|0,d=d+Math.imul(l,fa)|0,e=e+Math.imul(l,ga)|0,e=e+Math.imul(m,fa)|0,f=f+Math.imul(m,ga)|0;var wa=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(wa>>>26)|0,wa&=67108863,d=Math.imul(G,P),e=Math.imul(G,Q),e=e+Math.imul(H,P)|0,f=Math.imul(H,Q),d=d+Math.imul(D,S)|0,e=e+Math.imul(D,T)|0,e=e+Math.imul(E,S)|0,f=f+Math.imul(E,T)|0,d=d+Math.imul(A,V)|0,e=e+Math.imul(A,W)|0,e=e+Math.imul(B,V)|0,f=f+Math.imul(B,W)|0,d=d+Math.imul(x,Y)|0,e=e+Math.imul(x,Z)|0,e=e+Math.imul(y,Y)|0,f=f+Math.imul(y,Z)|0,d=d+Math.imul(u,_)|0,e=e+Math.imul(u,aa)|0,e=e+Math.imul(v,_)|0,f=f+Math.imul(v,aa)|0,d=d+Math.imul(r,ca)|0,e=e+Math.imul(r,da)|0,e=e+Math.imul(s,ca)|0,f=f+Math.imul(s,da)|0,d=d+Math.imul(o,fa)|0,e=e+Math.imul(o,ga)|0,e=e+Math.imul(p,fa)|0,f=f+Math.imul(p,ga)|0,d=d+Math.imul(l,ia)|0,e=e+Math.imul(l,ja)|0,e=e+Math.imul(m,ia)|0,f=f+Math.imul(m,ja)|0;var xa=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(xa>>>26)|0,xa&=67108863,d=Math.imul(J,P),e=Math.imul(J,Q),e=e+Math.imul(K,P)|0,f=Math.imul(K,Q),d=d+Math.imul(G,S)|0,e=e+Math.imul(G,T)|0,e=e+Math.imul(H,S)|0,f=f+Math.imul(H,T)|0,d=d+Math.imul(D,V)|0,e=e+Math.imul(D,W)|0,e=e+Math.imul(E,V)|0,f=f+Math.imul(E,W)|0,d=d+Math.imul(A,Y)|0,e=e+Math.imul(A,Z)|0,e=e+Math.imul(B,Y)|0,f=f+Math.imul(B,Z)|0,d=d+Math.imul(x,_)|0,e=e+Math.imul(x,aa)|0,e=e+Math.imul(y,_)|0,f=f+Math.imul(y,aa)|0,d=d+Math.imul(u,ca)|0,e=e+Math.imul(u,da)|0,e=e+Math.imul(v,ca)|0,f=f+Math.imul(v,da)|0,d=d+Math.imul(r,fa)|0,e=e+Math.imul(r,ga)|0,e=e+Math.imul(s,fa)|0,f=f+Math.imul(s,ga)|0,d=d+Math.imul(o,ia)|0,e=e+Math.imul(o,ja)|0,e=e+Math.imul(p,ia)|0,f=f+Math.imul(p,ja)|0,d=d+Math.imul(l,la)|0,e=e+Math.imul(l,ma)|0,e=e+Math.imul(m,la)|0,f=f+Math.imul(m,ma)|0;var ya=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(ya>>>26)|0,ya&=67108863,d=Math.imul(M,P),e=Math.imul(M,Q),e=e+Math.imul(N,P)|0,f=Math.imul(N,Q),d=d+Math.imul(J,S)|0,e=e+Math.imul(J,T)|0,e=e+Math.imul(K,S)|0,f=f+Math.imul(K,T)|0,d=d+Math.imul(G,V)|0,e=e+Math.imul(G,W)|0,e=e+Math.imul(H,V)|0,f=f+Math.imul(H,W)|0,d=d+Math.imul(D,Y)|0,e=e+Math.imul(D,Z)|0,e=e+Math.imul(E,Y)|0,f=f+Math.imul(E,Z)|0,d=d+Math.imul(A,_)|0,e=e+Math.imul(A,aa)|0,e=e+Math.imul(B,_)|0,f=f+Math.imul(B,aa)|0,d=d+Math.imul(x,ca)|0,e=e+Math.imul(x,da)|0,e=e+Math.imul(y,ca)|0,f=f+Math.imul(y,da)|0,d=d+Math.imul(u,fa)|0,e=e+Math.imul(u,ga)|0,e=e+Math.imul(v,fa)|0,f=f+Math.imul(v,ga)|0,d=d+Math.imul(r,ia)|0,e=e+Math.imul(r,ja)|0,e=e+Math.imul(s,ia)|0,f=f+Math.imul(s,ja)|0,d=d+Math.imul(o,la)|0,e=e+Math.imul(o,ma)|0,e=e+Math.imul(p,la)|0,f=f+Math.imul(p,ma)|0,d=d+Math.imul(l,oa)|0,e=e+Math.imul(l,pa)|0,e=e+Math.imul(m,oa)|0,f=f+Math.imul(m,pa)|0;var za=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(za>>>26)|0,za&=67108863,d=Math.imul(M,S),e=Math.imul(M,T),e=e+Math.imul(N,S)|0,f=Math.imul(N,T),d=d+Math.imul(J,V)|0,e=e+Math.imul(J,W)|0,e=e+Math.imul(K,V)|0,f=f+Math.imul(K,W)|0,d=d+Math.imul(G,Y)|0,e=e+Math.imul(G,Z)|0,e=e+Math.imul(H,Y)|0,f=f+Math.imul(H,Z)|0,d=d+Math.imul(D,_)|0,e=e+Math.imul(D,aa)|0,e=e+Math.imul(E,_)|0,f=f+Math.imul(E,aa)|0,d=d+Math.imul(A,ca)|0,e=e+Math.imul(A,da)|0,e=e+Math.imul(B,ca)|0,f=f+Math.imul(B,da)|0,d=d+Math.imul(x,fa)|0,e=e+Math.imul(x,ga)|0,e=e+Math.imul(y,fa)|0,f=f+Math.imul(y,ga)|0,d=d+Math.imul(u,ia)|0,e=e+Math.imul(u,ja)|0,e=e+Math.imul(v,ia)|0,f=f+Math.imul(v,ja)|0,d=d+Math.imul(r,la)|0,e=e+Math.imul(r,ma)|0,e=e+Math.imul(s,la)|0,f=f+Math.imul(s,ma)|0,d=d+Math.imul(o,oa)|0,e=e+Math.imul(o,pa)|0,e=e+Math.imul(p,oa)|0,f=f+Math.imul(p,pa)|0;var Aa=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(Aa>>>26)|0,Aa&=67108863,d=Math.imul(M,V),e=Math.imul(M,W),e=e+Math.imul(N,V)|0,f=Math.imul(N,W),d=d+Math.imul(J,Y)|0,e=e+Math.imul(J,Z)|0,e=e+Math.imul(K,Y)|0,f=f+Math.imul(K,Z)|0,d=d+Math.imul(G,_)|0,e=e+Math.imul(G,aa)|0,e=e+Math.imul(H,_)|0,f=f+Math.imul(H,aa)|0,d=d+Math.imul(D,ca)|0,e=e+Math.imul(D,da)|0,e=e+Math.imul(E,ca)|0,f=f+Math.imul(E,da)|0,d=d+Math.imul(A,fa)|0,e=e+Math.imul(A,ga)|0,e=e+Math.imul(B,fa)|0,f=f+Math.imul(B,ga)|0,d=d+Math.imul(x,ia)|0,e=e+Math.imul(x,ja)|0,e=e+Math.imul(y,ia)|0,f=f+Math.imul(y,ja)|0,d=d+Math.imul(u,la)|0,e=e+Math.imul(u,ma)|0,e=e+Math.imul(v,la)|0,f=f+Math.imul(v,ma)|0,d=d+Math.imul(r,oa)|0,e=e+Math.imul(r,pa)|0,e=e+Math.imul(s,oa)|0,f=f+Math.imul(s,pa)|0;var Ba=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(Ba>>>26)|0,Ba&=67108863,d=Math.imul(M,Y),e=Math.imul(M,Z),e=e+Math.imul(N,Y)|0,f=Math.imul(N,Z),d=d+Math.imul(J,_)|0,e=e+Math.imul(J,aa)|0,e=e+Math.imul(K,_)|0,f=f+Math.imul(K,aa)|0,d=d+Math.imul(G,ca)|0,e=e+Math.imul(G,da)|0,e=e+Math.imul(H,ca)|0,f=f+Math.imul(H,da)|0,d=d+Math.imul(D,fa)|0,e=e+Math.imul(D,ga)|0,e=e+Math.imul(E,fa)|0,f=f+Math.imul(E,ga)|0,d=d+Math.imul(A,ia)|0,e=e+Math.imul(A,ja)|0,e=e+Math.imul(B,ia)|0,f=f+Math.imul(B,ja)|0,d=d+Math.imul(x,la)|0,e=e+Math.imul(x,ma)|0,e=e+Math.imul(y,la)|0,f=f+Math.imul(y,ma)|0,d=d+Math.imul(u,oa)|0,e=e+Math.imul(u,pa)|0,e=e+Math.imul(v,oa)|0,f=f+Math.imul(v,pa)|0;var Ca=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(Ca>>>26)|0,Ca&=67108863,d=Math.imul(M,_),e=Math.imul(M,aa),e=e+Math.imul(N,_)|0,f=Math.imul(N,aa),d=d+Math.imul(J,ca)|0,e=e+Math.imul(J,da)|0,e=e+Math.imul(K,ca)|0,f=f+Math.imul(K,da)|0,d=d+Math.imul(G,fa)|0,e=e+Math.imul(G,ga)|0,e=e+Math.imul(H,fa)|0,f=f+Math.imul(H,ga)|0,d=d+Math.imul(D,ia)|0,e=e+Math.imul(D,ja)|0,e=e+Math.imul(E,ia)|0,f=f+Math.imul(E,ja)|0,d=d+Math.imul(A,la)|0,e=e+Math.imul(A,ma)|0,e=e+Math.imul(B,la)|0,f=f+Math.imul(B,ma)|0,d=d+Math.imul(x,oa)|0,e=e+Math.imul(x,pa)|0,e=e+Math.imul(y,oa)|0,f=f+Math.imul(y,pa)|0;var Da=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(Da>>>26)|0,Da&=67108863,d=Math.imul(M,ca),e=Math.imul(M,da),e=e+Math.imul(N,ca)|0,f=Math.imul(N,da),d=d+Math.imul(J,fa)|0,e=e+Math.imul(J,ga)|0,e=e+Math.imul(K,fa)|0,f=f+Math.imul(K,ga)|0,d=d+Math.imul(G,ia)|0,e=e+Math.imul(G,ja)|0,e=e+Math.imul(H,ia)|0,f=f+Math.imul(H,ja)|0,d=d+Math.imul(D,la)|0,e=e+Math.imul(D,ma)|0,e=e+Math.imul(E,la)|0,f=f+Math.imul(E,ma)|0,d=d+Math.imul(A,oa)|0,e=e+Math.imul(A,pa)|0,e=e+Math.imul(B,oa)|0,f=f+Math.imul(B,pa)|0;var Ea=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(Ea>>>26)|0,Ea&=67108863,d=Math.imul(M,fa),e=Math.imul(M,ga),e=e+Math.imul(N,fa)|0,f=Math.imul(N,ga),d=d+Math.imul(J,ia)|0,e=e+Math.imul(J,ja)|0,e=e+Math.imul(K,ia)|0,f=f+Math.imul(K,ja)|0,d=d+Math.imul(G,la)|0,e=e+Math.imul(G,ma)|0,e=e+Math.imul(H,la)|0,f=f+Math.imul(H,ma)|0,d=d+Math.imul(D,oa)|0,e=e+Math.imul(D,pa)|0,e=e+Math.imul(E,oa)|0,f=f+Math.imul(E,pa)|0;var Fa=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(Fa>>>26)|0,Fa&=67108863,d=Math.imul(M,ia),e=Math.imul(M,ja),e=e+Math.imul(N,ia)|0,f=Math.imul(N,ja),d=d+Math.imul(J,la)|0,e=e+Math.imul(J,ma)|0,e=e+Math.imul(K,la)|0,f=f+Math.imul(K,ma)|0,d=d+Math.imul(G,oa)|0,e=e+Math.imul(G,pa)|0,e=e+Math.imul(H,oa)|0,f=f+Math.imul(H,pa)|0;var Ga=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(Ga>>>26)|0,Ga&=67108863,d=Math.imul(M,la),e=Math.imul(M,ma),e=e+Math.imul(N,la)|0,f=Math.imul(N,ma),d=d+Math.imul(J,oa)|0,e=e+Math.imul(J,pa)|0,e=e+Math.imul(K,oa)|0,f=f+Math.imul(K,pa)|0;var Ha=(j+d|0)+((8191&e)<<13)|0;j=(f+(e>>>13)|0)+(Ha>>>26)|0,Ha&=67108863,d=Math.imul(M,oa),e=Math.imul(M,pa),e=e+Math.imul(N,oa)|0,f=Math.imul(N,pa);var Ia=(j+d|0)+((8191&e)<<13)|0;return j=(f+(e>>>13)|0)+(Ia>>>26)|0,Ia&=67108863,i[0]=qa,i[1]=ra,i[2]=sa,i[3]=ta,i[4]=ua,i[5]=va,i[6]=wa,i[7]=xa,i[8]=ya,i[9]=za,i[10]=Aa,i[11]=Ba,i[12]=Ca,i[13]=Da,i[14]=Ea,i[15]=Fa,i[16]=Ga,i[17]=Ha,i[18]=Ia,0!==j&&(i[19]=j,c.length++),c};Math.imul||(z=j),f.prototype.mulTo=function(a,b){var c,d=this.length+a.length;return c=10===this.length&&10===a.length?z(this,a,b):d<63?j(this,a,b):d<1024?k(this,a,b):l(this,a,b)},m.prototype.makeRBT=function(a){for(var b=new Array(a),c=f.prototype._countBits(a)-1,d=0;d<a;d++)b[d]=this.revBin(d,c,a);return b},m.prototype.revBin=function(a,b,c){if(0===a||a===c-1)return a;for(var d=0,e=0;e<b;e++)d|=(1&a)<<b-e-1,a>>=1;return d},m.prototype.permute=function(a,b,c,d,e,f){for(var g=0;g<f;g++)d[g]=b[a[g]],e[g]=c[a[g]]},m.prototype.transform=function(a,b,c,d,e,f){this.permute(f,a,b,c,d,e);for(var g=1;g<e;g<<=1)for(var h=g<<1,i=Math.cos(2*Math.PI/h),j=Math.sin(2*Math.PI/h),k=0;k<e;k+=h)for(var l=i,m=j,n=0;n<g;n++){var o=c[k+n],p=d[k+n],q=c[k+n+g],r=d[k+n+g],s=l*q-m*r;r=l*r+m*q,q=s,c[k+n]=o+q,d[k+n]=p+r,c[k+n+g]=o-q,d[k+n+g]=p-r,n!==h&&(s=i*l-j*m,m=i*m+j*l,l=s)}},m.prototype.guessLen13b=function(a,b){var c=1|Math.max(b,a),d=1&c,e=0;for(c=c/2|0;c;c>>>=1)e++;return 1<<e+1+d},m.prototype.conjugate=function(a,b,c){if(!(c<=1))for(var d=0;d<c/2;d++){var e=a[d];a[d]=a[c-d-1],a[c-d-1]=e,e=b[d],b[d]=-b[c-d-1],b[c-d-1]=-e}},m.prototype.normalize13b=function(a,b){for(var c=0,d=0;d<b/2;d++){var e=8192*Math.round(a[2*d+1]/b)+Math.round(a[2*d]/b)+c;a[d]=67108863&e,c=e<67108864?0:e/67108864|0}return a},m.prototype.convert13b=function(a,b,c,e){for(var f=0,g=0;g<b;g++)f+=0|a[g],c[2*g]=8191&f,f>>>=13,c[2*g+1]=8191&f,f>>>=13;for(g=2*b;g<e;++g)c[g]=0;d(0===f),d(0===(f&-8192))},m.prototype.stub=function(a){for(var b=new Array(a),c=0;c<a;c++)b[c]=0;return b},m.prototype.mulp=function(a,b,c){var d=2*this.guessLen13b(a.length,b.length),e=this.makeRBT(d),f=this.stub(d),g=new Array(d),h=new Array(d),i=new Array(d),j=new Array(d),k=new Array(d),l=new Array(d),m=c.words;m.length=d,this.convert13b(a.words,a.length,g,d),this.convert13b(b.words,b.length,j,d),this.transform(g,f,h,i,d,e),this.transform(j,f,k,l,d,e);for(var n=0;n<d;n++){var o=h[n]*k[n]-i[n]*l[n];i[n]=h[n]*l[n]+i[n]*k[n],h[n]=o}return this.conjugate(h,i,d),this.transform(h,i,m,f,d,e),this.conjugate(m,f,d),this.normalize13b(m,d),c.negative=a.negative^b.negative,c.length=a.length+b.length,c.strip()},f.prototype.mul=function(a){var b=new f(null);return b.words=new Array(this.length+a.length),this.mulTo(a,b)},f.prototype.mulf=function(a){var b=new f(null);return b.words=new Array(this.length+a.length),l(this,a,b)},f.prototype.imul=function(a){return this.clone().mulTo(a,this)},f.prototype.imuln=function(a){d("number"==typeof a),d(a<67108864);for(var b=0,c=0;c<this.length;c++){var e=(0|this.words[c])*a,f=(67108863&e)+(67108863&b);b>>=26,b+=e/67108864|0,b+=f>>>26,this.words[c]=67108863&f}return 0!==b&&(this.words[c]=b,this.length++),this},f.prototype.muln=function(a){return this.clone().imuln(a)},f.prototype.sqr=function(){return this.mul(this)},f.prototype.isqr=function(){return this.imul(this.clone())},f.prototype.pow=function(a){var b=i(a);if(0===b.length)return new f(1);for(var c=this,d=0;d<b.length&&0===b[d];d++,c=c.sqr());if(++d<b.length)for(var e=c.sqr();d<b.length;d++,e=e.sqr())0!==b[d]&&(c=c.mul(e));return c},f.prototype.iushln=function(a){d("number"==typeof a&&a>=0);var b,c=a%26,e=(a-c)/26,f=67108863>>>26-c<<26-c;if(0!==c){var g=0;for(b=0;b<this.length;b++){var h=this.words[b]&f,i=(0|this.words[b])-h<<c;this.words[b]=i|g,g=h>>>26-c}g&&(this.words[b]=g,this.length++)}if(0!==e){for(b=this.length-1;b>=0;b--)this.words[b+e]=this.words[b];for(b=0;b<e;b++)this.words[b]=0;this.length+=e}return this.strip()},f.prototype.ishln=function(a){return d(0===this.negative),this.iushln(a)},f.prototype.iushrn=function(a,b,c){d("number"==typeof a&&a>=0);var e;e=b?(b-b%26)/26:0;var f=a%26,g=Math.min((a-f)/26,this.length),h=67108863^67108863>>>f<<f,i=c;if(e-=g,e=Math.max(0,e),i){for(var j=0;j<g;j++)i.words[j]=this.words[j];i.length=g}if(0===g);else if(this.length>g)for(this.length-=g,j=0;j<this.length;j++)this.words[j]=this.words[j+g];else this.words[0]=0,this.length=1;var k=0;for(j=this.length-1;j>=0&&(0!==k||j>=e);j--){var l=0|this.words[j];this.words[j]=k<<26-f|l>>>f,k=l&h}return i&&0!==k&&(i.words[i.length++]=k),0===this.length&&(this.words[0]=0,this.length=1),this.strip()},f.prototype.ishrn=function(a,b,c){return d(0===this.negative),this.iushrn(a,b,c)},f.prototype.shln=function(a){return this.clone().ishln(a)},f.prototype.ushln=function(a){return this.clone().iushln(a)},f.prototype.shrn=function(a){return this.clone().ishrn(a)},f.prototype.ushrn=function(a){return this.clone().iushrn(a)},f.prototype.testn=function(a){d("number"==typeof a&&a>=0);var b=a%26,c=(a-b)/26,e=1<<b;if(this.length<=c)return!1;var f=this.words[c];return!!(f&e)},f.prototype.imaskn=function(a){d("number"==typeof a&&a>=0);var b=a%26,c=(a-b)/26;if(d(0===this.negative,"imaskn works only with positive numbers"),0!==b&&c++,this.length=Math.min(c,this.length),0!==b){var e=67108863^67108863>>>b<<b;this.words[this.length-1]&=e}return this.strip()},f.prototype.maskn=function(a){return this.clone().imaskn(a)},f.prototype.iaddn=function(a){return d("number"==typeof a),d(a<67108864),a<0?this.isubn(-a):0!==this.negative?1===this.length&&(0|this.words[0])<a?(this.words[0]=a-(0|this.words[0]),this.negative=0,this):(this.negative=0,this.isubn(a),this.negative=1,this):this._iaddn(a)},f.prototype._iaddn=function(a){this.words[0]+=a;for(var b=0;b<this.length&&this.words[b]>=67108864;b++)this.words[b]-=67108864,b===this.length-1?this.words[b+1]=1:this.words[b+1]++;return this.length=Math.max(this.length,b+1),this},f.prototype.isubn=function(a){if(d("number"==typeof a),d(a<67108864),a<0)return this.iaddn(-a);if(0!==this.negative)return this.negative=0,this.iaddn(a),this.negative=1,this;if(this.words[0]-=a,1===this.length&&this.words[0]<0)this.words[0]=-this.words[0],this.negative=1;else for(var b=0;b<this.length&&this.words[b]<0;b++)this.words[b]+=67108864,this.words[b+1]-=1;return this.strip()},f.prototype.addn=function(a){return this.clone().iaddn(a)},f.prototype.subn=function(a){return this.clone().isubn(a)},f.prototype.iabs=function(){return this.negative=0,this},f.prototype.abs=function(){return this.clone().iabs()},f.prototype._ishlnsubmul=function(a,b,c){var e,f=a.length+c;this._expand(f);var g,h=0;for(e=0;e<a.length;e++){g=(0|this.words[e+c])+h;var i=(0|a.words[e])*b;g-=67108863&i,h=(g>>26)-(i/67108864|0),this.words[e+c]=67108863&g}for(;e<this.length-c;e++)g=(0|this.words[e+c])+h,h=g>>26,this.words[e+c]=67108863&g;if(0===h)return this.strip();for(d(h===-1),h=0,e=0;e<this.length;e++)g=-(0|this.words[e])+h,h=g>>26,this.words[e]=67108863&g;return this.negative=1,this.strip()},f.prototype._wordDiv=function(a,b){var c=this.length-a.length,d=this.clone(),e=a,g=0|e.words[e.length-1],h=this._countBits(g);c=26-h,0!==c&&(e=e.ushln(c),d.iushln(c),g=0|e.words[e.length-1]);
diff --git a/lib/signing-key.js b/lib/signing-key.js
index 209fe25e1..ea7a1c28b 100644
--- a/lib/signing-key.js
+++ b/lib/signing-key.js
@@ -7,6 +7,7 @@ var utils = require('./utils.js');
 var secp256k1 = new (elliptic.ec)('secp256k1');
 
 
+
 function SigningKey(privateKey) {
     if (!(this instanceof SigningKey)) { throw new Error('missing new'); }
 
@@ -28,5 +29,10 @@ function SigningKey(privateKey) {
     });
 }
 
+utils.defineProperty(SigningKey, 'recover', function(digest, r, s, recoveryParam) {
+    var publicKey = secp256k1.recoverPubKey(digest, {r: r, s: s}, recoveryParam);
+    publicKey = (new Buffer(publicKey.encode('hex', false), 'hex')).slice(1);
+    return utils.getAddress(utils.sha3(publicKey).slice(12).toString('hex'));
+});
 
 module.exports = SigningKey;
diff --git a/lib/wallet.js b/lib/wallet.js
index c4e5681e3..7a29f74dc 100644
--- a/lib/wallet.js
+++ b/lib/wallet.js
@@ -111,6 +111,28 @@ function Wallet(privateKey, provider) {
     });
 }
 
+utils.defineProperty(Wallet, 'parseTransaction', function(rawTransaction) {
+    rawTransaction = utils.hexOrBuffer(rawTransaction, 'rawTransaction');
+    var signedTransaction = rlp.decode(rawTransaction);
+
+    var raw = [];
+
+    var transaction = {};
+    transactionFields.forEach(function(fieldInfo, index) {
+        transaction[fieldInfo.name] = signedTransaction[index];
+        raw.push(signedTransaction[index]);
+    });
+
+    transaction.v = signedTransaction[6];
+    transaction.r = signedTransaction[7];
+    transaction.s = signedTransaction[8];
+
+    var digest = utils.sha3(rlp.encode(raw));
+    transaction.from = SigningKey.recover(digest, transaction.r, transaction.s, transaction.v[0] - 27);
+
+    return transaction;
+});
+
 utils.defineProperty(Wallet.prototype, 'getBalance', function(blockNumber) {
     var provider = this._provider;
 
diff --git a/package.json b/package.json
index c37cb33c2..6acca36c8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ethers-wallet",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "Ethereum wallet library.",
   "main": "index.js",
   "scripts": {
diff --git a/tests/test-transactions.js b/tests/test-transactions.js
index 3f0c06a45..9f5214436 100644
--- a/tests/test-transactions.js
+++ b/tests/test-transactions.js
@@ -17,9 +17,12 @@ module.exports = function(test) {
         rawTransaction.sign(privateKey);
         var ethereumLib = '0x' + rawTransaction.serialize().toString('hex');
 
-        var ethers = (new Wallet(privateKey)).sign(transaction);
+        var wallet = new Wallet(privateKey);
+        var ethers = wallet.sign(transaction);
 
         test.equal(ethers, ethereumLib, 'invalid transaction');
+
+        test.equal(wallet.address, Wallet.parseTransaction(ethers).from, 'invalid parseTransaction');
     }
 
     for (var i = 0; i < 10000; i++) {