updated ethash

This commit is contained in:
obscuren 2015-03-20 11:19:12 +01:00
parent 62236dd95e
commit d8fe8f60e8
16 changed files with 1106 additions and 236 deletions

4
Godeps/Godeps.json generated

@ -22,8 +22,8 @@
},
{
"ImportPath": "github.com/ethereum/ethash",
"Comment": "v23-12-g149261a",
"Rev": "149261a5d7cafc3943cbcf1d370082ec70d81e8b"
"Comment": "v23.1-25-gc0429f2",
"Rev": "c0429f268b62e2238b684d4b5495f8ff24115424"
},
{
"ImportPath": "github.com/ethereum/serpent-go",

@ -31,8 +31,8 @@ import (
"time"
"unsafe"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/pow"
)
@ -360,8 +360,7 @@ func (pow *Ethash) Search(block pow.Block, stop <-chan struct{}) (uint64, []byte
}
func (pow *Ethash) Verify(block pow.Block) bool {
return pow.verify(block.HashNoNonce(), block.MixDigest(), block.Difficulty(), block.NumberU64(), block.Nonce())
return pow.verify(block.HashNoNonce().Bytes(), block.MixDigest().Bytes(), block.Difficulty(), block.NumberU64(), block.Nonce())
}
func (pow *Ethash) verify(hash []byte, mixDigest []byte, difficulty *big.Int, blockNum uint64, nonce uint64) bool {

@ -0,0 +1,329 @@
module.exports = [
16776896, 16907456, 17039296, 17170112, 17301056, 17432512, 17563072,
17693888, 17824192, 17955904, 18087488, 18218176, 18349504, 18481088,
18611392, 18742336, 18874304, 19004224, 19135936, 19267264, 19398208,
19529408, 19660096, 19791424, 19922752, 20053952, 20184896, 20315968,
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214956992, 215089088, 215219776, 215350592, 215482304, 215613248,
215743552, 215874752, 216005312, 216137024, 216267328, 216399296,
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217316672, 217448128, 217579072, 217709504, 217838912, 217972672,
218102848, 218233024, 218364736, 218496832, 218627776, 218759104,
218888896, 219021248, 219151936, 219281728, 219413056, 219545024,
219675968, 219807296, 219938624, 220069312, 220200128, 220331456,
220461632, 220592704, 220725184, 220855744, 220987072, 221117888,
221249216, 221378368, 221510336, 221642048, 221772736, 221904832,
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224394944, 224524864, 224657344, 224788288, 224919488, 225050432,
225181504, 225312704, 225443776, 225574592, 225704768, 225834176,
225966784, 226097216, 226229824, 226360384, 226491712, 226623424,
226754368, 226885312, 227015104, 227147456, 227278528, 227409472,
227539904, 227669696, 227802944, 227932352, 228065216, 228196288,
228326464, 228457792, 228588736, 228720064, 228850112, 228981056,
229113152, 229243328, 229375936, 229505344, 229636928, 229769152,
229894976, 230030272, 230162368, 230292416, 230424512, 230553152,
230684864, 230816704, 230948416, 231079616, 231210944, 231342016,
231472448, 231603776, 231733952, 231866176, 231996736, 232127296,
232259392, 232388672, 232521664, 232652608, 232782272, 232914496,
233043904, 233175616, 233306816, 233438528, 233569984, 233699776,
233830592, 233962688, 234092224, 234221888, 234353984, 234485312,
234618304, 234749888, 234880832, 235011776, 235142464, 235274048,
235403456, 235535936, 235667392, 235797568, 235928768, 236057152,
236190272, 236322752, 236453312, 236583616, 236715712, 236846528,
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237764416, 237895232, 238026688, 238157632, 238286912, 238419392,
238548032, 238681024, 238812608, 238941632, 239075008, 239206336,
239335232, 239466944, 239599168, 239730496, 239861312, 239992384,
240122816, 240254656, 240385856, 240516928, 240647872, 240779072,
240909632, 241040704, 241171904, 241302848, 241433408, 241565248,
241696192, 241825984, 241958848, 242088256, 242220224, 242352064,
242481856, 242611648, 242744896, 242876224, 243005632, 243138496,
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245628736, 245759936, 245889856, 246021056, 246152512, 246284224,
246415168, 246545344, 246675904, 246808384, 246939584, 247070144,
247199552, 247331648, 247463872, 247593536, 247726016, 247857088,
247987648, 248116928, 248249536, 248380736, 248512064, 248643008,
248773312, 248901056, 249036608, 249167552, 249298624, 249429184,
249560512, 249692096, 249822784, 249954112, 250085312, 250215488,
250345792, 250478528, 250608704, 250739264, 250870976, 251002816,
251133632, 251263552, 251395136, 251523904, 251657792, 251789248,
251919424, 252051392, 252182464, 252313408, 252444224, 252575552,
252706624, 252836032, 252968512, 253099712, 253227584, 253361728,
253493056, 253623488, 253754432, 253885504, 254017216, 254148032,
254279488, 254410432, 254541376, 254672576, 254803264, 254933824,
255065792, 255196736, 255326528, 255458752, 255589952, 255721408,
255851072, 255983296, 256114624, 256244416, 256374208, 256507712,
256636096, 256768832, 256900544, 257031616, 257162176, 257294272,
257424448, 257555776, 257686976, 257818432, 257949632, 258079552,
258211136, 258342464, 258473408, 258603712, 258734656, 258867008,
258996544, 259127744, 259260224, 259391296, 259522112, 259651904,
259784384, 259915328, 260045888, 260175424, 260308544, 260438336,
260570944, 260700992, 260832448, 260963776, 261092672, 261226304,
261356864, 261487936, 261619648, 261750592, 261879872, 262011968,
262143424, 262274752, 262404416, 262537024, 262667968, 262799296,
262928704, 263061184, 263191744, 263322944, 263454656, 263585216,
263716672, 263847872, 263978944, 264108608, 264241088, 264371648,
264501184, 264632768, 264764096, 264895936, 265024576, 265158464,
265287488, 265418432, 265550528, 265681216, 265813312, 265943488,
266075968, 266206144, 266337728, 266468032, 266600384, 266731072,
266862272, 266993344, 267124288, 267255616, 267386432, 267516992,
267648704, 267777728, 267910592, 268040512, 268172096, 268302784,
268435264, 268566208, 268696256, 268828096, 268959296, 269090368,
269221312, 269352256, 269482688, 269614784, 269745856, 269876416,
270007616, 270139328, 270270272, 270401216, 270531904, 270663616,
270791744, 270924736, 271056832, 271186112, 271317184, 271449536,
271580992, 271711936, 271843136, 271973056, 272105408, 272236352,
272367296, 272498368, 272629568, 272759488, 272891456, 273022784,
273153856, 273284672, 273415616, 273547072, 273677632, 273808448,
273937088, 274071488, 274200896, 274332992, 274463296, 274595392,
274726208, 274857536, 274988992, 275118656, 275250496, 275382208,
275513024, 275643968, 275775296, 275906368, 276037184, 276167872,
276297664, 276429376, 276560576, 276692672, 276822976, 276955072,
277085632, 277216832, 277347008, 277478848, 277609664, 277740992,
277868608, 278002624, 278134336, 278265536, 278395328, 278526784,
278657728, 278789824, 278921152, 279052096, 279182912, 279313088,
279443776, 279576256, 279706048, 279838528, 279969728, 280099648,
280230976, 280361408, 280493632, 280622528, 280755392, 280887104,
281018176, 281147968, 281278912, 281411392, 281542592, 281673152,
281803712, 281935552, 282066496, 282197312, 282329024, 282458816,
282590272, 282720832, 282853184, 282983744, 283115072, 283246144,
283377344, 283508416, 283639744, 283770304, 283901504, 284032576,
284163136, 284294848, 284426176, 284556992, 284687296, 284819264,
284950208, 285081536
];

@ -0,0 +1,412 @@
module.exports = [
1073739904, 1082130304, 1090514816, 1098906752, 1107293056,
1115684224, 1124070016, 1132461952, 1140849536, 1149232768,
1157627776, 1166013824, 1174404736, 1182786944, 1191180416,
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7113536896, 7121928064, 7130315392, 7138699648, 7147092352,
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7574912896, 7583300992, 7591690112, 7600075136, 7608466816,
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8875147136, 8883532928, 8891923328, 8900306816, 8908700288,
8917088384, 8925478784, 8933867392, 8942250368, 8950644608,
8959032704, 8967420544, 8975809664, 8984197504, 8992584064,
9000976256, 9009362048, 9017752448, 9026141312, 9034530688,
9042917504, 9051307904, 9059694208, 9068084864, 9076471424,
9084861824, 9093250688, 9101638528, 9110027648, 9118416512,
9126803584, 9135188096, 9143581312, 9151969664, 9160356224,
9168747136, 9177134464, 9185525632, 9193910144, 9202302848,
9210690688, 9219079552, 9227465344, 9235854464, 9244244864,
9252633472, 9261021824, 9269411456, 9277799296, 9286188928,
9294574208, 9302965888, 9311351936, 9319740032, 9328131968,
9336516736, 9344907392, 9353296768, 9361685888, 9370074752,
9378463616, 9386849408, 9395239808, 9403629184, 9412016512,
9420405376, 9428795008, 9437181568, 9445570688, 9453960832,
9462346624, 9470738048, 9479121536, 9487515008, 9495903616,
9504289664, 9512678528, 9521067904, 9529456256, 9537843584,
9546233728, 9554621312, 9563011456, 9571398784, 9579788672,
9588178304, 9596567168, 9604954496, 9613343104, 9621732992,
9630121856, 9638508416, 9646898816, 9655283584, 9663675776,
9672061312, 9680449664, 9688840064, 9697230464, 9705617536,
9714003584, 9722393984, 9730772608, 9739172224, 9747561088,
9755945344, 9764338816, 9772726144, 9781116544, 9789503872,
9797892992, 9806282624, 9814670464, 9823056512, 9831439232,
9839833984, 9848224384, 9856613504, 9865000576, 9873391232,
9881772416, 9890162816, 9898556288, 9906940544, 9915333248,
9923721088, 9932108672, 9940496512, 9948888448, 9957276544,
9965666176, 9974048384, 9982441088, 9990830464, 9999219584,
10007602816, 10015996544, 10024385152, 10032774016, 10041163648,
10049548928, 10057940096, 10066329472, 10074717824, 10083105152,
10091495296, 10099878784, 10108272256, 10116660608, 10125049216,
10133437312, 10141825664, 10150213504, 10158601088, 10166991232,
10175378816, 10183766144, 10192157312, 10200545408, 10208935552,
10217322112, 10225712768, 10234099328, 10242489472, 10250876032,
10259264896, 10267656064, 10276042624, 10284429184, 10292820352,
10301209472, 10309598848, 10317987712, 10326375296, 10334763392,
10343153536, 10351541632, 10359930752, 10368318592, 10376707456,
10385096576, 10393484672, 10401867136, 10410262144, 10418647424,
10427039104, 10435425664, 10443810176, 10452203648, 10460589952,
10468982144, 10477369472, 10485759104, 10494147712, 10502533504,
10510923392, 10519313536, 10527702656, 10536091264, 10544478592,
10552867712, 10561255808, 10569642368, 10578032768, 10586423168,
10594805632, 10603200128, 10611588992, 10619976064, 10628361344,
10636754048, 10645143424, 10653531776, 10661920384, 10670307968,
10678696832, 10687086464, 10695475072, 10703863168, 10712246144,
10720639616, 10729026688, 10737414784, 10745806208, 10754190976,
10762581376, 10770971264, 10779356288, 10787747456, 10796135552,
10804525184, 10812915584, 10821301888, 10829692288, 10838078336,
10846469248, 10854858368, 10863247232, 10871631488, 10880023424,
10888412032, 10896799616, 10905188992, 10913574016, 10921964672,
10930352768, 10938742912, 10947132544, 10955518592, 10963909504,
10972298368, 10980687488, 10989074816, 10997462912, 11005851776,
11014241152, 11022627712, 11031017344, 11039403904, 11047793024,
11056184704, 11064570752, 11072960896, 11081343872, 11089737856,
11098128256, 11106514816, 11114904448, 11123293568, 11131680128,
11140065152, 11148458368, 11156845696, 11165236864, 11173624192,
11182013824, 11190402688, 11198790784, 11207179136, 11215568768,
11223957376, 11232345728, 11240734592, 11249122688, 11257511296,
11265899648, 11274285952, 11282675584, 11291065472, 11299452544,
11307842432, 11316231296, 11324616832, 11333009024, 11341395584,
11349782656, 11358172288, 11366560384, 11374950016, 11383339648,
11391721856, 11400117376, 11408504192, 11416893568, 11425283456,
11433671552, 11442061184, 11450444672, 11458837888, 11467226752,
11475611776, 11484003968, 11492392064, 11500780672, 11509169024,
11517550976, 11525944448, 11534335616, 11542724224, 11551111808,
11559500672, 11567890304, 11576277376, 11584667008, 11593056128,
11601443456, 11609830016, 11618221952, 11626607488, 11634995072,
11643387776, 11651775104, 11660161664, 11668552576, 11676940928,
11685330304, 11693718656, 11702106496, 11710496128, 11718882688,
11727273088, 11735660416, 11744050048, 11752437376, 11760824704,
11769216128, 11777604736, 11785991296, 11794381952, 11802770048,
11811157888, 11819548544, 11827932544, 11836324736, 11844713344,
11853100928, 11861486464, 11869879936, 11878268032, 11886656896,
11895044992, 11903433088, 11911822976, 11920210816, 11928600448,
11936987264, 11945375872, 11953761152, 11962151296, 11970543488,
11978928512, 11987320448, 11995708288, 12004095104, 12012486272,
12020875136, 12029255552, 12037652096, 12046039168, 12054429568,
12062813824, 12071206528, 12079594624, 12087983744, 12096371072,
12104759936, 12113147264, 12121534592, 12129924992, 12138314624,
12146703232, 12155091584, 12163481216, 12171864704, 12180255872,
12188643968, 12197034112, 12205424512, 12213811328, 12222199424,
12230590336, 12238977664, 12247365248, 12255755392, 12264143488,
12272531584, 12280920448, 12289309568, 12297694592, 12306086528,
12314475392, 12322865024, 12331253632, 12339640448, 12348029312,
12356418944, 12364805248, 12373196672, 12381580928, 12389969024,
12398357632, 12406750592, 12415138432, 12423527552, 12431916416,
12440304512, 12448692352, 12457081216, 12465467776, 12473859968,
12482245504, 12490636672, 12499025536, 12507411584, 12515801728,
12524190592, 12532577152, 12540966272, 12549354368, 12557743232,
12566129536, 12574523264, 12582911872, 12591299456, 12599688064,
12608074624, 12616463488, 12624845696, 12633239936, 12641631616,
12650019968, 12658407296, 12666795136, 12675183232, 12683574656,
12691960192, 12700350592, 12708740224, 12717128576, 12725515904,
12733906816, 12742295168, 12750680192, 12759071872, 12767460736,
12775848832, 12784236928, 12792626816, 12801014656, 12809404288,
12817789312, 12826181504, 12834568832, 12842954624, 12851345792,
12859732352, 12868122496, 12876512128, 12884901248, 12893289088,
12901672832, 12910067584, 12918455168, 12926842496, 12935232896,
12943620736, 12952009856, 12960396928, 12968786816, 12977176192,
12985563776, 12993951104, 13002341504, 13010730368, 13019115392,
13027506304, 13035895168, 13044272512, 13052673152, 13061062528,
13069446272, 13077838976, 13086227072, 13094613632, 13103000192,
13111393664, 13119782528, 13128157568, 13136559232, 13144945024,
13153329536, 13161724288, 13170111872, 13178502784, 13186884736,
13195279744, 13203667072, 13212057472, 13220445824, 13228832128,
13237221248, 13245610624, 13254000512, 13262388352, 13270777472,
13279166336, 13287553408, 13295943296, 13304331904, 13312719488,
13321108096, 13329494656, 13337885824, 13346274944, 13354663808,
13363051136, 13371439232, 13379825024, 13388210816, 13396605056,
13404995456, 13413380224, 13421771392, 13430159744, 13438546048,
13446937216, 13455326848, 13463708288, 13472103808, 13480492672,
13488875648, 13497269888, 13505657728, 13514045312, 13522435712,
13530824576, 13539210112, 13547599232, 13555989376, 13564379008,
13572766336, 13581154432, 13589544832, 13597932928, 13606320512,
13614710656, 13623097472, 13631477632, 13639874944, 13648264064,
13656652928, 13665041792, 13673430656, 13681818496, 13690207616,
13698595712, 13706982272, 13715373184, 13723762048, 13732150144,
13740536704, 13748926592, 13757316224, 13765700992, 13774090112,
13782477952, 13790869376, 13799259008, 13807647872, 13816036736,
13824425344, 13832814208, 13841202304, 13849591424, 13857978752,
13866368896, 13874754688, 13883145344, 13891533184, 13899919232,
13908311168, 13916692096, 13925085056, 13933473152, 13941866368,
13950253696, 13958643584, 13967032192, 13975417216, 13983807616,
13992197504, 14000582272, 14008973696, 14017363072, 14025752192,
14034137984, 14042528384, 14050918016, 14059301504, 14067691648,
14076083584, 14084470144, 14092852352, 14101249664, 14109635968,
14118024832, 14126407552, 14134804352, 14143188608, 14151577984,
14159968384, 14168357248, 14176741504, 14185127296, 14193521024,
14201911424, 14210301824, 14218685056, 14227067264, 14235467392,
14243855488, 14252243072, 14260630144, 14269021568, 14277409408,
14285799296, 14294187904, 14302571392, 14310961792, 14319353728,
14327738752, 14336130944, 14344518784, 14352906368, 14361296512,
14369685376, 14378071424, 14386462592, 14394848128, 14403230848,
14411627392, 14420013952, 14428402304, 14436793472, 14445181568,
14453569664, 14461959808, 14470347904, 14478737024, 14487122816,
14495511424, 14503901824, 14512291712, 14520677504, 14529064832,
14537456768, 14545845632, 14554234496, 14562618496, 14571011456,
14579398784, 14587789184, 14596172672, 14604564608, 14612953984,
14621341312, 14629724288, 14638120832, 14646503296, 14654897536,
14663284864, 14671675264, 14680061056, 14688447616, 14696835968,
14705228416, 14713616768, 14722003328, 14730392192, 14738784128,
14747172736, 14755561088, 14763947648, 14772336512, 14780725376,
14789110144, 14797499776, 14805892736, 14814276992, 14822670208,
14831056256, 14839444352, 14847836032, 14856222848, 14864612992,
14872997504, 14881388672, 14889775744, 14898165376, 14906553472,
14914944896, 14923329664, 14931721856, 14940109696, 14948497024,
14956887424, 14965276544, 14973663616, 14982053248, 14990439808,
14998830976, 15007216768, 15015605888, 15023995264, 15032385152,
15040768384, 15049154944, 15057549184, 15065939072, 15074328448,
15082715008, 15091104128, 15099493504, 15107879296, 15116269184,
15124659584, 15133042304, 15141431936, 15149824384, 15158214272,
15166602368, 15174991232, 15183378304, 15191760512, 15200154496,
15208542592, 15216931712, 15225323392, 15233708416, 15242098048,
15250489216, 15258875264, 15267265408, 15275654528, 15284043136,
15292431488, 15300819584, 15309208192, 15317596544, 15325986176,
15334374784, 15342763648, 15351151744, 15359540608, 15367929728,
15376318336, 15384706432, 15393092992, 15401481856, 15409869952,
15418258816, 15426649984, 15435037568, 15443425664, 15451815296,
15460203392, 15468589184, 15476979328, 15485369216, 15493755776,
15502146944, 15510534272, 15518924416, 15527311232, 15535699072,
15544089472, 15552478336, 15560866688, 15569254528, 15577642624,
15586031488, 15594419072, 15602809472, 15611199104, 15619586432,
15627975296, 15636364928, 15644753792, 15653141888, 15661529216,
15669918848, 15678305152, 15686696576, 15695083136, 15703474048,
15711861632, 15720251264, 15728636288, 15737027456, 15745417088,
15753804928, 15762194048, 15770582656, 15778971008, 15787358336,
15795747712, 15804132224, 15812523392, 15820909696, 15829300096,
15837691264, 15846071936, 15854466944, 15862855808, 15871244672,
15879634816, 15888020608, 15896409728, 15904799104, 15913185152,
15921577088, 15929966464, 15938354816, 15946743424, 15955129472,
15963519872, 15971907968, 15980296064, 15988684928, 15997073024,
16005460864, 16013851264, 16022241152, 16030629248, 16039012736,
16047406976, 16055794816, 16064181376, 16072571264, 16080957824,
16089346688, 16097737856, 16106125184, 16114514816, 16122904192,
16131292544, 16139678848, 16148066944, 16156453504, 16164839552,
16173236096, 16181623424, 16190012032, 16198401152, 16206790528,
16215177344, 16223567744, 16231956352, 16240344704, 16248731008,
16257117824, 16265504384, 16273898624, 16282281856, 16290668672,
16299064192, 16307449216, 16315842176, 16324230016, 16332613504,
16341006464, 16349394304, 16357783168, 16366172288, 16374561664,
16382951296, 16391337856, 16399726208, 16408116352, 16416505472,
16424892032, 16433282176, 16441668224, 16450058624, 16458448768,
16466836864, 16475224448, 16483613056, 16492001408, 16500391808,
16508779648, 16517166976, 16525555328, 16533944192, 16542330752,
16550719616, 16559110528, 16567497088, 16575888512, 16584274816,
16592665472, 16601051008, 16609442944, 16617832064, 16626218624,
16634607488, 16642996096, 16651385728, 16659773824, 16668163712,
16676552576, 16684938112, 16693328768, 16701718144, 16710095488,
16718492288, 16726883968, 16735272832, 16743661184, 16752049792,
16760436608, 16768827008, 16777214336, 16785599104, 16793992832,
16802381696, 16810768768, 16819151744, 16827542656, 16835934848,
16844323712, 16852711552, 16861101952, 16869489536, 16877876864,
16886265728, 16894653056, 16903044736, 16911431296, 16919821696,
16928207488, 16936592768, 16944987776, 16953375616, 16961763968,
16970152832, 16978540928, 16986929536, 16995319168, 17003704448,
17012096896, 17020481152, 17028870784, 17037262208, 17045649536,
17054039936, 17062426496, 17070814336, 17079205504, 17087592064,
17095978112, 17104369024, 17112759424, 17121147776, 17129536384,
17137926016, 17146314368, 17154700928, 17163089792, 17171480192,
17179864192, 17188256896, 17196644992, 17205033856, 17213423488,
17221811072, 17230198912, 17238588032, 17246976896, 17255360384,
17263754624, 17272143232, 17280530048, 17288918912, 17297309312,
17305696384, 17314085504, 17322475136, 17330863744, 17339252096,
17347640192, 17356026496, 17364413824, 17372796544, 17381190016,
17389583488, 17397972608, 17406360704, 17414748544, 17423135872,
17431527296, 17439915904, 17448303232, 17456691584, 17465081728,
17473468288, 17481857408, 17490247552, 17498635904, 17507022464,
17515409024, 17523801728, 17532189824, 17540577664, 17548966016,
17557353344, 17565741184, 17574131584, 17582519168, 17590907008,
17599296128, 17607687808, 17616076672, 17624455808, 17632852352,
17641238656, 17649630848, 17658018944, 17666403968, 17674794112,
17683178368, 17691573376, 17699962496, 17708350592, 17716739968,
17725126528, 17733517184, 17741898112, 17750293888, 17758673024,
17767070336, 17775458432, 17783848832, 17792236928, 17800625536,
17809012352, 17817402752, 17825785984, 17834178944, 17842563968,
17850955648, 17859344512, 17867732864, 17876119424, 17884511872,
17892900224, 17901287296, 17909677696, 17918058112, 17926451072,
17934843776, 17943230848, 17951609216, 17960008576, 17968397696,
17976784256, 17985175424, 17993564032, 18001952128, 18010339712,
18018728576, 18027116672, 18035503232, 18043894144, 18052283264,
18060672128, 18069056384, 18077449856, 18085837184, 18094225792,
18102613376, 18111004544, 18119388544, 18127781248, 18136170368,
18144558976, 18152947328, 18161336192, 18169724288, 18178108544,
18186498944, 18194886784, 18203275648, 18211666048, 18220048768,
18228444544, 18236833408, 18245220736
];

@ -7,184 +7,192 @@
var Keccak = require('./keccak');
var util = require('./util');
var ethUtil = require('ethereumjs-util');
// 32-bit unsigned modulo
function mod32(x, n)
{
return (x>>>0) % (n>>>0);
function mod32(x, n) {
return (x >>> 0) % (n >>> 0);
}
function fnv(x, y)
{
// js integer multiply by 0x01000193 will lose precision
return ((x*0x01000000 | 0) + (x*0x193 | 0)) ^ y;
function fnv(x, y) {
// js integer multiply by 0x01000193 will lose precision
return ((x * 0x01000000 | 0) + (x * 0x193 | 0)) ^ y;
}
function computeCache(params, seedWords)
{
var cache = new Uint32Array(params.cacheSize >> 2);
var cacheNodeCount = params.cacheSize >> 6;
function computeCache(params, seedWords) {
var cache = new Uint32Array(params.cacheSize >> 2);
var cacheNodeCount = params.cacheSize >> 6;
// Initialize cache
var keccak = new Keccak();
keccak.digestWords(cache, 0, 16, seedWords, 0, seedWords.length);
for (var n = 1; n < cacheNodeCount; ++n)
{
keccak.digestWords(cache, n<<4, 16, cache, (n-1)<<4, 16);
}
var tmp = new Uint32Array(16);
// Do randmemohash passes
for (var r = 0; r < params.cacheRounds; ++r)
{
for (var n = 0; n < cacheNodeCount; ++n)
{
var p0 = mod32(n + cacheNodeCount - 1, cacheNodeCount) << 4;
var p1 = mod32(cache[n<<4|0], cacheNodeCount) << 4;
for (var w = 0; w < 16; w=(w+1)|0)
{
tmp[w] = cache[p0 | w] ^ cache[p1 | w];
}
keccak.digestWords(cache, n<<4, 16, tmp, 0, tmp.length);
}
}
return cache;
// Initialize cache
var keccak = new Keccak();
keccak.digestWords(cache, 0, 16, seedWords, 0, seedWords.length);
for (var n = 1; n < cacheNodeCount; ++n) {
keccak.digestWords(cache, n << 4, 16, cache, (n - 1) << 4, 16);
}
var tmp = new Uint32Array(16);
// Do randmemohash passes
for (var r = 0; r < params.cacheRounds; ++r) {
for (var n = 0; n < cacheNodeCount; ++n) {
var p0 = mod32(n + cacheNodeCount - 1, cacheNodeCount) << 4;
var p1 = mod32(cache[n << 4 | 0], cacheNodeCount) << 4;
for (var w = 0; w < 16; w = (w + 1) | 0) {
tmp[w] = cache[p0 | w] ^ cache[p1 | w];
}
keccak.digestWords(cache, n << 4, 16, tmp, 0, tmp.length);
}
}
return cache;
}
function computeDagNode(o_node, params, cache, keccak, nodeIndex)
{
var cacheNodeCount = params.cacheSize >> 6;
var dagParents = params.dagParents;
var c = (nodeIndex % cacheNodeCount) << 4;
var mix = o_node;
for (var w = 0; w < 16; ++w)
{
mix[w] = cache[c|w];
}
mix[0] ^= nodeIndex;
keccak.digestWords(mix, 0, 16, mix, 0, 16);
for (var p = 0; p < dagParents; ++p)
{
// compute cache node (word) index
c = mod32(fnv(nodeIndex ^ p, mix[p&15]), cacheNodeCount) << 4;
for (var w = 0; w < 16; ++w)
{
mix[w] = fnv(mix[w], cache[c|w]);
}
}
keccak.digestWords(mix, 0, 16, mix, 0, 16);
function computeDagNode(o_node, params, cache, keccak, nodeIndex) {
var cacheNodeCount = params.cacheSize >> 6;
var dagParents = params.dagParents;
var c = (nodeIndex % cacheNodeCount) << 4;
var mix = o_node;
for (var w = 0; w < 16; ++w) {
mix[w] = cache[c | w];
}
mix[0] ^= nodeIndex;
keccak.digestWords(mix, 0, 16, mix, 0, 16);
for (var p = 0; p < dagParents; ++p) {
// compute cache node (word) index
c = mod32(fnv(nodeIndex ^ p, mix[p & 15]), cacheNodeCount) << 4;
for (var w = 0; w < 16; ++w) {
mix[w] = fnv(mix[w], cache[c | w]);
}
}
keccak.digestWords(mix, 0, 16, mix, 0, 16);
}
function computeHashInner(mix, params, cache, keccak, tempNode)
{
var mixParents = params.mixParents|0;
var mixWordCount = params.mixSize >> 2;
var mixNodeCount = mixWordCount >> 4;
var dagPageCount = (params.dagSize / params.mixSize) >> 0;
// grab initial first word
var s0 = mix[0];
// initialise mix from initial 64 bytes
for (var w = 16; w < mixWordCount; ++w)
{
mix[w] = mix[w & 15];
}
for (var a = 0; a < mixParents; ++a)
{
var p = mod32(fnv(s0 ^ a, mix[a & (mixWordCount-1)]), dagPageCount);
var d = (p * mixNodeCount)|0;
for (var n = 0, w = 0; n < mixNodeCount; ++n, w += 16)
{
computeDagNode(tempNode, params, cache, keccak, (d + n)|0);
for (var v = 0; v < 16; ++v)
{
mix[w|v] = fnv(mix[w|v], tempNode[v]);
}
}
}
function computeHashInner(mix, params, cache, keccak, tempNode) {
var mixParents = params.mixParents | 0;
var mixWordCount = params.mixSize >> 2;
var mixNodeCount = mixWordCount >> 4;
var dagPageCount = (params.dagSize / params.mixSize) >> 0;
// grab initial first word
var s0 = mix[0];
// initialise mix from initial 64 bytes
for (var w = 16; w < mixWordCount; ++w) {
mix[w] = mix[w & 15];
}
for (var a = 0; a < mixParents; ++a) {
var p = mod32(fnv(s0 ^ a, mix[a & (mixWordCount - 1)]), dagPageCount);
var d = (p * mixNodeCount) | 0;
for (var n = 0, w = 0; n < mixNodeCount; ++n, w += 16) {
computeDagNode(tempNode, params, cache, keccak, (d + n) | 0);
for (var v = 0; v < 16; ++v) {
mix[w | v] = fnv(mix[w | v], tempNode[v]);
}
}
}
}
function convertSeed(seed)
{
// todo, reconcile with spec, byte ordering?
// todo, big-endian conversion
var newSeed = util.toWords(seed);
if (newSeed === null)
throw Error("Invalid seed '" + seed + "'");
return newSeed;
function convertSeed(seed) {
// todo, reconcile with spec, byte ordering?
// todo, big-endian conversion
var newSeed = util.toWords(seed);
if (newSeed === null)
throw Error("Invalid seed '" + seed + "'");
return newSeed;
}
exports.defaultParams = function()
{
return {
cacheSize: 1048384,
cacheRounds: 3,
dagSize: 1073739904,
dagParents: 256,
mixSize: 128,
mixParents: 64,
};
var params = exports.params = {
REVISION: 23,
DATASET_BYTES_INIT: 1073741824,
DATASET_BYTES_GROWTH: 8388608,
CACHE_BYTES_INIT: 1073741824,
CACHE_BYTES_GROWTH: 131072,
EPOCH_LENGTH: 30000,
MIX_BYTES: 128,
HASH_BYTES: 64,
DATASET_PARENTS: 256,
CACHE_ROUNDS: 3,
ACCESSES: 64
};
exports.Ethash = function(params, seed)
{
// precompute cache and related values
seed = convertSeed(seed);
var cache = computeCache(params, seed);
// preallocate buffers/etc
var initBuf = new ArrayBuffer(96);
var initBytes = new Uint8Array(initBuf);
var initWords = new Uint32Array(initBuf);
var mixWords = new Uint32Array(params.mixSize / 4);
var tempNode = new Uint32Array(16);
var keccak = new Keccak();
var retWords = new Uint32Array(8);
var retBytes = new Uint8Array(retWords.buffer); // supposedly read-only
this.hash = function(header, nonce)
{
// compute initial hash
initBytes.set(header, 0);
initBytes.set(nonce, 32);
keccak.digestWords(initWords, 0, 16, initWords, 0, 8 + nonce.length/4);
// compute mix
for (var i = 0; i != 16; ++i)
{
mixWords[i] = initWords[i];
}
computeHashInner(mixWords, params, cache, keccak, tempNode);
// compress mix and append to initWords
for (var i = 0; i != mixWords.length; i += 4)
{
initWords[16 + i/4] = fnv(fnv(fnv(mixWords[i], mixWords[i+1]), mixWords[i+2]), mixWords[i+3]);
}
// final Keccak hashes
keccak.digestWords(retWords, 0, 8, initWords, 0, 24); // Keccak-256(s + cmix)
return retBytes;
};
this.cacheDigest = function()
{
return keccak.digest(32, new Uint8Array(cache.buffer));
};
var cache_sizes = require('./cache_sizes');
var dag_sizes = require('./dag_sizes');
exports.calcSeed = function(blockNum) {
var epoch;
var seed = new Uint8Array(32);
if (blockNum > cache_sizes.length * params.EPOCH_LENGTH) {
return new Error('Time to upgrade to POS!!!');
} else {
epoch = Math.floor(blockNum / params.EPOCH_LENGTH);
for (var i = 0; i < epoch; i++) {
seed = ethUtil.sha3(new Buffer(seed));
}
return seed;
}
};
exports.defaultParams = function() {
return {
cacheSize: 1048384,
cacheRounds: 3,
dagSize: 1073739904,
dagParents: 256,
mixSize: 128,
mixParents: 64
};
};
exports.Ethash = function(params, seed) {
// precompute cache and related values
// seed = convertSeed(seed);
var cache = computeCache(params, seed);
// preallocate buffers/etc
var initBuf = new ArrayBuffer(96);
var initBytes = new Uint8Array(initBuf);
var initWords = new Uint32Array(initBuf);
var mixWords = new Uint32Array(params.mixSize / 4);
var tempNode = new Uint32Array(16);
var keccak = new Keccak();
var retWords = new Uint32Array(8);
var retBytes = new Uint8Array(retWords.buffer); // supposedly read-only
this.hash = function(header, nonce) {
// compute initial hash
initBytes.set(header, 0);
initBytes.set(nonce, 32);
keccak.digestWords(initWords, 0, 16, initWords, 0, 8 + nonce.length / 4);
// compute mix
for (var i = 0; i !== 16; ++i) {
mixWords[i] = initWords[i];
}
computeHashInner(mixWords, params, cache, keccak, tempNode);
// compress mix and append to initWords
for (var i = 0; i !== mixWords.length; i += 4) {
initWords[16 + i / 4] = fnv(fnv(fnv(mixWords[i], mixWords[i + 1]), mixWords[i + 2]), mixWords[i + 3]);
}
// final Keccak hashes
keccak.digestWords(retWords, 0, 8, initWords, 0, 24); // Keccak-256(s + cmix)
return retBytes;
};
this.cacheDigest = function() {
return keccak.digest(32, new Uint8Array(cache.buffer));
};
};

@ -0,0 +1,21 @@
{
"name": "ethash.js",
"version": "0.0.1",
"description": "",
"main": "ethash.js",
"scripts": {
"test": "node ./test/test.js"
},
"repository": {
"type": "git",
"url": "https://github.com/ethereum/ethash/tree/master/js"
},
"keywords": [
"ethereum"
],
"author": "",
"license": "mit",
"devDependencies": {
"ethereum-tests": "0.0.5"
}
}

@ -0,0 +1,48 @@
var tape = require('tape');
const ethash = require('../ethash.js');
tape('seed hash', function(t) {
t.test('seed should match TRUTH', function(st) {
const seed = '290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563';
const blockNum = 30000;
var r = new Buffer(ethash.calcSeed(blockNum));
st.equal(r.toString('hex'), seed);
st.end();
});
t.test('seed should match TRUTH2', function(st) {
const seed = '510e4e770828ddbf7f7b00ab00a9f6adaf81c0dc9cc85f1f8249c256942d61d9';
const blockNum = 60000;
var r = new Buffer(ethash.calcSeed(blockNum));
st.equal(r.toString('hex'), seed);
st.end();
});
t.test('seed should match TRUTH3', function(st) {
const seed = '510e4e770828ddbf7f7b00ab00a9f6adaf81c0dc9cc85f1f8249c256942d61d9';
const blockNum = 60700;
var r = new Buffer(ethash.calcSeed(blockNum));
st.equal(r.toString('hex'), seed);
st.end();
});
t.test('randomized tests', function(st) {
for (var i = 0; i < 100; i++) {
var x = Math.floor(ethash.params.EPOCH_LENGTH * 2048 * Math.random());
st.equal(ethash.calcSeed(x).toString('hex'), ethash.calcSeed(Math.floor(x / ethash.params.EPOCH_LENGTH) * ethash.params.EPOCH_LENGTH ).toString('hex'));
}
st.end();
});
// '510e4e770828ddbf7f7b00ab00a9f6adaf81c0dc9cc85f1f8249c256942d61d9'
// [7:13:32 PM] Matthew Wampler-Doty: >>> x = randint(0,700000)
//
// >>> pyethash.get_seedhash(x).encode('hex') == pyethash.get_seedhash((x // pyethash.EPOCH_LENGTH) * pyethash.EPOCH_LENGTH).encode('hex')
});

@ -4,9 +4,9 @@
/*jslint node: true, shadow:true */
"use strict";
var ethash = require('./ethash');
var util = require('./util');
var Keccak = require('./keccak');
var ethash = require('../ethash');
var util = require('../util');
var Keccak = require('../keccak');
// sanity check hash functions
var src = util.stringToBytes("");
@ -31,23 +31,22 @@ var ethashParams = ethash.defaultParams();
var seed = util.hexStringToBytes("9410b944535a83d9adf6bbdcc80e051f30676173c16ca0d32d6f1263fc246466")
var startTime = new Date().getTime();
var hasher = new ethash.Ethash(ethashParams, seed);
console.log('Ethash startup took: '+(new Date().getTime() - startTime) + "ms");
console.log('Ethash startup took: ' + (new Date().getTime() - startTime) + "ms");
console.log('Ethash cache hash: ' + util.bytesToHexString(hasher.cacheDigest()));
var testHexString = "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470";
if (testHexString != util.bytesToHexString(util.hexStringToBytes(testHexString)))
throw Error("bytesToHexString or hexStringToBytes broken");
throw Error("bytesToHexString or hexStringToBytes broken");
var header = util.hexStringToBytes("c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470");
var nonce = util.hexStringToBytes("0000000000000000");
var hash;
startTime = new Date().getTime();
var trials = 10;
for (var i = 0; i < trials; ++i)
{
hash = hasher.hash(header, nonce);
for (var i = 0; i < trials; ++i) {
hash = hasher.hash(header, nonce);
}
console.log("Light client hashes averaged: " + (new Date().getTime() - startTime)/trials + "ms");
console.log("Light client hashes averaged: " + (new Date().getTime() - startTime) / trials + "ms");
console.log("Hash = " + util.bytesToHexString(hash));

@ -25,9 +25,9 @@ setup (
author = "Matthew Wampler-Doty",
author_email = "matthew.wampler.doty@gmail.com",
license = 'GPL',
version = '23',
version = '23.1',
url = 'https://github.com/ethereum/ethash',
download_url = 'https://github.com/ethereum/ethash/tarball/v23',
download_url = 'https://github.com/ethereum/ethash/tarball/v23.1',
description = 'Python wrappers for ethash, the ethereum proof of work hashing function',
ext_modules = [pyethash],
)

@ -48,7 +48,7 @@ extern "C" {
// Sow[i*HashBytes]; j++]]]][[2]][[1]]
static const size_t dag_sizes[2048] = {
static const uint64_t dag_sizes[2048] = {
1073739904U, 1082130304U, 1090514816U, 1098906752U, 1107293056U,
1115684224U, 1124070016U, 1132461952U, 1140849536U, 1149232768U,
1157627776U, 1166013824U, 1174404736U, 1182786944U, 1191180416U,
@ -477,7 +477,7 @@ static const size_t dag_sizes[2048] = {
// While[! PrimeQ[i], i--];
// Sow[i*HashBytes]; j++]]]][[2]][[1]]
const size_t cache_sizes[2048] = {
const uint64_t cache_sizes[2048] = {
16776896U, 16907456U, 17039296U, 17170112U, 17301056U, 17432512U, 17563072U,
17693888U, 17824192U, 17955904U, 18087488U, 18218176U, 18349504U, 18481088U,
18611392U, 18742336U, 18874304U, 19004224U, 19135936U, 19267264U, 19398208U,

@ -43,8 +43,8 @@ extern "C" {
#endif
typedef struct ethash_params {
size_t full_size; // Size of full data set (in bytes, multiple of mix size (128)).
size_t cache_size; // Size of compute cache (in bytes, multiple of node size (64)).
uint64_t full_size; // Size of full data set (in bytes, multiple of mix size (128)).
uint64_t cache_size; // Size of compute cache (in bytes, multiple of node size (64)).
} ethash_params;
typedef struct ethash_return_value {
@ -52,45 +52,52 @@ typedef struct ethash_return_value {
uint8_t mix_hash[32];
} ethash_return_value;
size_t ethash_get_datasize(const uint32_t block_number);
size_t ethash_get_cachesize(const uint32_t block_number);
uint64_t ethash_get_datasize(const uint32_t block_number);
uint64_t ethash_get_cachesize(const uint32_t block_number);
// initialize the parameters
static inline void ethash_params_init(ethash_params *params, const uint32_t block_number) {
// Initialize the Parameters
static inline int ethash_params_init(ethash_params *params, const uint32_t block_number) {
params->full_size = ethash_get_datasize(block_number);
if (params->full_size == 0)
return 0;
params->cache_size = ethash_get_cachesize(block_number);
if (params->cache_size == 0)
return 0;
return 1;
}
typedef struct ethash_cache {
void *mem;
} ethash_cache;
void ethash_mkcache(ethash_cache *cache, ethash_params const *params, const uint8_t seed[32]);
void ethash_compute_full_data(void *mem, ethash_params const *params, ethash_cache const *cache);
void ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce);
void ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce);
int ethash_mkcache(ethash_cache *cache, ethash_params const *params, const uint8_t seed[32]);
int ethash_compute_full_data(void *mem, ethash_params const *params, ethash_cache const *cache);
int ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce);
int ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce);
void ethash_get_seedhash(uint8_t seedhash[32], const uint32_t block_number);
static inline void ethash_prep_light(void *cache, ethash_params const *params, const uint8_t seed[32]) {
static inline int ethash_prep_light(void *cache, ethash_params const *params, const uint8_t seed[32]) {
ethash_cache c;
c.mem = cache;
ethash_mkcache(&c, params, seed);
return ethash_mkcache(&c, params, seed);
}
static inline void ethash_compute_light(ethash_return_value *ret, void const *cache, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce) {
static inline int ethash_compute_light(ethash_return_value *ret, void const *cache, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce) {
ethash_cache c;
c.mem = (void *) cache;
ethash_light(ret, &c, params, header_hash, nonce);
return ethash_light(ret, &c, params, header_hash, nonce);
}
static inline void ethash_prep_full(void *full, ethash_params const *params, void const *cache) {
static inline int ethash_prep_full(void *full, ethash_params const *params, void const *cache) {
ethash_cache c;
c.mem = (void *) cache;
ethash_compute_full_data(full, params, &c);
return ethash_compute_full_data(full, params, &c);
}
static inline void ethash_compute_full(ethash_return_value *ret, void const *full, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce) {
ethash_full(ret, full, params, header_hash, nonce);
static inline int ethash_compute_full(ethash_return_value *ret, void const *full, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce) {
return ethash_full(ret, full, params, header_hash, nonce);
}
// Returns if hash is less than or equal to difficulty

@ -20,7 +20,6 @@
* @date 2015
*/
#include <assert.h>
#include <inttypes.h>
#include <stddef.h>
#include "ethash.h"
@ -29,6 +28,9 @@
#include "internal.h"
#include "data_sizes.h"
// Inline assembly doesn't work
#define ENABLE_SSE 0
#ifdef WITH_CRYPTOPP
#include "sha3_cryptopp.h"
@ -37,24 +39,29 @@
#include "sha3.h"
#endif // WITH_CRYPTOPP
size_t ethash_get_datasize(const uint32_t block_number) {
assert(block_number / EPOCH_LENGTH < 2048);
uint64_t ethash_get_datasize(const uint32_t block_number) {
if (block_number / EPOCH_LENGTH >= 2048)
return 0;
return dag_sizes[block_number / EPOCH_LENGTH];
}
size_t ethash_get_cachesize(const uint32_t block_number) {
assert(block_number / EPOCH_LENGTH < 2048);
uint64_t ethash_get_cachesize(const uint32_t block_number) {
if (block_number / EPOCH_LENGTH >= 2048)
return 0;
return cache_sizes[block_number / EPOCH_LENGTH];
}
// Follows Sergio's "STRICT MEMORY HARD HASHING FUNCTIONS" (2014)
// https://bitslog.files.wordpress.com/2013/12/memohash-v0-3.pdf
// SeqMemoHash(s, R, N)
void static ethash_compute_cache_nodes(
int static ethash_compute_cache_nodes(
node *const nodes,
ethash_params const *params,
const uint8_t seed[32]) {
assert((params->cache_size % sizeof(node)) == 0);
if ((params->cache_size % sizeof(node)) != 0)
return 0;
uint32_t const num_nodes = (uint32_t) (params->cache_size / sizeof(node));
SHA3_512(nodes[0].bytes, seed, 32);
@ -82,22 +89,27 @@ void static ethash_compute_cache_nodes(
nodes->words[w] = fix_endian32(nodes->words[w]);
}
#endif
return 1;
}
void ethash_mkcache(
int ethash_mkcache(
ethash_cache *cache,
ethash_params const *params,
const uint8_t seed[32]) {
node *nodes = (node *) cache->mem;
ethash_compute_cache_nodes(nodes, params, seed);
return ethash_compute_cache_nodes(nodes, params, seed);
}
void ethash_calculate_dag_item(
int ethash_calculate_dag_item(
node *const ret,
const unsigned node_index,
const uint64_t node_index,
const struct ethash_params *params,
const struct ethash_cache *cache) {
if (params->cache_size % sizeof(node) != 0)
return 0;
uint32_t num_parent_nodes = (uint32_t) (params->cache_size / sizeof(node));
node const *cache_nodes = (node const *) cache->mem;
node const *init = &cache_nodes[node_index % num_parent_nodes];
@ -145,23 +157,58 @@ void ethash_calculate_dag_item(
}
SHA3_512(ret->bytes, ret->bytes, sizeof(node));
return 1;
}
void ethash_compute_full_data(
int ethash_compute_full_data(
void *mem,
ethash_params const *params,
ethash_cache const *cache) {
assert((params->full_size % (sizeof(uint32_t) * MIX_WORDS)) == 0);
assert((params->full_size % sizeof(node)) == 0);
if ((params->full_size % (sizeof(uint32_t) * MIX_WORDS)) != 0)
return 0;
if ((params->full_size % sizeof(node)) != 0)
return 0;
node *full_nodes = mem;
// now compute full nodes
for (unsigned n = 0; n != (params->full_size / sizeof(node)); ++n) {
for (uint64_t n = 0; n != (params->full_size / sizeof(node)); ++n) {
ethash_calculate_dag_item(&(full_nodes[n]), n, params, cache);
}
return 1;
}
static void ethash_hash(
int ethash_compute_full_data_section(
void *mem,
ethash_params const *params,
ethash_cache const *cache,
uint64_t const start,
uint64_t const end) {
if ((params->full_size % (sizeof(uint32_t) * MIX_WORDS)) != 0)
return 0;
if ((params->full_size % sizeof(node)) != 0)
return 0;
if (end >= params->full_size)
return 0;
if (start >= end)
return 0;
node *full_nodes = mem;
// now compute full nodes
for (uint64_t n = start; n != end; ++n) {
ethash_calculate_dag_item(&(full_nodes[n]), n, params, cache);
}
return 1;
}
static int ethash_hash(
ethash_return_value *ret,
node const *full_nodes,
ethash_cache const *cache,
@ -169,10 +216,10 @@ static void ethash_hash(
const uint8_t header_hash[32],
const uint64_t nonce) {
assert((params->full_size % MIX_WORDS) == 0);
if ((params->full_size % MIX_WORDS) != 0)
return 0;
// pack hash and nonce together into first 40 bytes of s_mix
assert(sizeof(node) * 8 == 512);
node s_mix[MIX_NODES + 1];
memcpy(s_mix[0].bytes, header_hash, 32);
@ -254,6 +301,7 @@ static void ethash_hash(
memcpy(ret->mix_hash, mix->bytes, 32);
// final Keccak hash
SHA3_256(ret->result, s_mix->bytes, 64 + 32); // Keccak-256(s + compressed_mix)
return 1;
}
void ethash_quick_hash(
@ -291,10 +339,10 @@ int ethash_quick_check_difficulty(
return ethash_check_difficulty(return_hash, difficulty);
}
void ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) {
ethash_hash(ret, (node const *) full_mem, NULL, params, previous_hash, nonce);
int ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) {
return ethash_hash(ret, (node const *) full_mem, NULL, params, previous_hash, nonce);
}
void ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) {
ethash_hash(ret, NULL, cache, params, previous_hash, nonce);
int ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) {
return ethash_hash(ret, NULL, cache, params, previous_hash, nonce);
}

@ -30,9 +30,9 @@ typedef union node {
} node;
void ethash_calculate_dag_item(
int ethash_calculate_dag_item(
node *const ret,
const unsigned node_index,
const uint64_t node_index,
ethash_params const *params,
ethash_cache const *cache
);

@ -58,7 +58,7 @@ mkcache_bytes(PyObject *self, PyObject *args) {
}
ethash_params params;
params.cache_size = (size_t) cache_size;
params.cache_size = (uint64_t) cache_size;
ethash_cache cache;
cache.mem = malloc(cache_size);
ethash_mkcache(&cache, &params, (uint8_t *) seed);
@ -92,8 +92,8 @@ calc_dataset_bytes(PyObject *self, PyObject *args) {
}
ethash_params params;
params.cache_size = (size_t) cache_size;
params.full_size = (size_t) full_size;
params.cache_size = (uint64_t) cache_size;
params.full_size = (uint64_t) full_size;
ethash_cache cache;
cache.mem = (void *) cache_bytes;
void *mem = malloc(params.full_size);
@ -138,8 +138,8 @@ hashimoto_light(PyObject *self, PyObject *args) {
ethash_return_value out;
ethash_params params;
params.cache_size = (size_t) cache_size;
params.full_size = (size_t) full_size;
params.cache_size = (uint64_t) cache_size;
params.full_size = (uint64_t) full_size;
ethash_cache cache;
cache.mem = (void *) cache_bytes;
ethash_light(&out, &cache, &params, (uint8_t *) header, nonce);
@ -175,7 +175,7 @@ hashimoto_full(PyObject *self, PyObject *args) {
ethash_return_value out;
ethash_params params;
params.full_size = (size_t) full_size;
params.full_size = (uint64_t) full_size;
ethash_full(&out, (void *) full_bytes, &params, (uint8_t *) header, nonce);
return Py_BuildValue("{s:s#, s:s#}",
"mix digest", out.mix_hash, 32,
@ -216,7 +216,7 @@ mine(PyObject *self, PyObject *args) {
ethash_return_value out;
ethash_params params;
params.full_size = (size_t) full_size;
params.full_size = (uint64_t) full_size;
// TODO: Multi threading?
do {

@ -17,7 +17,7 @@
#include <boost/test/unit_test.hpp>
#include <iostream>
std::string bytesToHexString(const uint8_t *str, const size_t s) {
std::string bytesToHexString(const uint8_t *str, const uint32_t s) {
std::ostringstream ret;
for (int i = 0; i < s; ++i)
@ -80,9 +80,11 @@ BOOST_AUTO_TEST_CASE(ethash_params_init_genesis_check) {
BOOST_AUTO_TEST_CASE(ethash_params_init_genesis_calcifide_check) {
ethash_params params;
ethash_params_init(&params, 0);
const uint32_t expected_full_size = 1073739904;
const uint32_t expected_cache_size = 16776896;
BOOST_REQUIRE_MESSAGE(ethash_params_init(&params, 0),
"Params could not be initialized");
const uint32_t
expected_full_size = 1073739904,
expected_cache_size = 16776896;
BOOST_REQUIRE_MESSAGE(params.full_size == expected_full_size,
"\nexpected: " << expected_cache_size << "\n"
<< "actual: " << params.full_size << "\n");

@ -14,11 +14,8 @@ TEST_DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
echo -e "\n################# Testing JS ##################"
# TODO: Use mocha and real testing tools instead of rolling our own
cd $TEST_DIR/../js
if [ -x "$(which nodejs)" ] ; then
nodejs test.js
fi
if [ -x "$(which node)" ] ; then
node test.js
if [ -x "$(which npm)" ] ; then
npm test
fi
echo -e "\n################# Testing C ##################"