diff --git a/test/ed25519-addons.test.js b/test/ed25519-addons.test.js
new file mode 100644
index 0000000..4d16f11
--- /dev/null
+++ b/test/ed25519-addons.test.js
@@ -0,0 +1,290 @@
+import { sha512 } from '@noble/hashes/sha512';
+import { hexToBytes, bytesToHex, randomBytes } from '@noble/hashes/utils';
+import { deepStrictEqual, strictEqual, throws } from 'assert';
+import { describe, should } from 'micro-should';
+import { numberToBytesLE } from '../lib/esm/abstract/utils.js';
+import { default as x25519vectors } from './wycheproof/x25519_test.json' assert { type: 'json' };
+import { ed25519ctx, ed25519ph, RistrettoPoint, x25519 } from '../lib/esm/ed25519.js';
+
+// const ed = ed25519;
+const hex = bytesToHex;
+// const Point = ed.ExtendedPoint;
+
+const VECTORS_RFC8032_CTX = [
+  {
+    secretKey: '0305334e381af78f141cb666f6199f57bc3495335a256a95bd2a55bf546663f6',
+    publicKey: 'dfc9425e4f968f7f0c29f0259cf5f9aed6851c2bb4ad8bfb860cfee0ab248292',
+    message: 'f726936d19c800494e3fdaff20b276a8',
+    context: '666f6f',
+    signature:
+      '55a4cc2f70a54e04288c5f4cd1e45a7b' +
+      'b520b36292911876cada7323198dd87a' +
+      '8b36950b95130022907a7fb7c4e9b2d5' +
+      'f6cca685a587b4b21f4b888e4e7edb0d',
+  },
+  {
+    secretKey: '0305334e381af78f141cb666f6199f57bc3495335a256a95bd2a55bf546663f6',
+    publicKey: 'dfc9425e4f968f7f0c29f0259cf5f9aed6851c2bb4ad8bfb860cfee0ab248292',
+    message: 'f726936d19c800494e3fdaff20b276a8',
+    context: '626172',
+    signature:
+      'fc60d5872fc46b3aa69f8b5b4351d580' +
+      '8f92bcc044606db097abab6dbcb1aee3' +
+      '216c48e8b3b66431b5b186d1d28f8ee1' +
+      '5a5ca2df6668346291c2043d4eb3e90d',
+  },
+  {
+    secretKey: '0305334e381af78f141cb666f6199f57bc3495335a256a95bd2a55bf546663f6',
+    publicKey: 'dfc9425e4f968f7f0c29f0259cf5f9aed6851c2bb4ad8bfb860cfee0ab248292',
+    message: '508e9e6882b979fea900f62adceaca35',
+    context: '666f6f',
+    signature:
+      '8b70c1cc8310e1de20ac53ce28ae6e72' +
+      '07f33c3295e03bb5c0732a1d20dc6490' +
+      '8922a8b052cf99b7c4fe107a5abb5b2c' +
+      '4085ae75890d02df26269d8945f84b0b',
+  },
+  {
+    secretKey: 'ab9c2853ce297ddab85c993b3ae14bcad39b2c682beabc27d6d4eb20711d6560',
+    publicKey: '0f1d1274943b91415889152e893d80e93275a1fc0b65fd71b4b0dda10ad7d772',
+    message: 'f726936d19c800494e3fdaff20b276a8',
+    context: '666f6f',
+    signature:
+      '21655b5f1aa965996b3f97b3c849eafb' +
+      'a922a0a62992f73b3d1b73106a84ad85' +
+      'e9b86a7b6005ea868337ff2d20a7f5fb' +
+      'd4cd10b0be49a68da2b2e0dc0ad8960f',
+  },
+];
+
+describe('RFC8032ctx', () => {
+  for (let i = 0; i < VECTORS_RFC8032_CTX.length; i++) {
+    const v = VECTORS_RFC8032_CTX[i];
+    should(`${i}`, () => {
+      deepStrictEqual(hex(ed25519ctx.getPublicKey(v.secretKey)), v.publicKey);
+      deepStrictEqual(hex(ed25519ctx.sign(v.message, v.secretKey, v.context)), v.signature);
+      deepStrictEqual(ed25519ctx.verify(v.signature, v.message, v.publicKey, v.context), true);
+    });
+  }
+});
+
+const VECTORS_RFC8032_PH = [
+  {
+    secretKey: '833fe62409237b9d62ec77587520911e9a759cec1d19755b7da901b96dca3d42',
+    publicKey: 'ec172b93ad5e563bf4932c70e1245034c35467ef2efd4d64ebf819683467e2bf',
+    message: '616263',
+    signature:
+      '98a70222f0b8121aa9d30f813d683f80' +
+      '9e462b469c7ff87639499bb94e6dae41' +
+      '31f85042463c2a355a2003d062adf5aa' +
+      'a10b8c61e636062aaad11c2a26083406',
+  },
+];
+
+describe('RFC8032ph', () => {
+  for (let i = 0; i < VECTORS_RFC8032_PH.length; i++) {
+    const v = VECTORS_RFC8032_PH[i];
+    should(`${i}`, () => {
+      deepStrictEqual(hex(ed25519ph.getPublicKey(v.secretKey)), v.publicKey);
+      deepStrictEqual(hex(ed25519ph.sign(v.message, v.secretKey)), v.signature);
+      deepStrictEqual(ed25519ph.verify(v.signature, v.message, v.publicKey), true);
+    });
+  }
+});
+
+// x25519
+should('X25519 base point', () => {
+  const { y } = ed25519ph.ExtendedPoint.BASE;
+  const { Fp } = ed25519ph.CURVE;
+  const u = Fp.create((y + 1n) * Fp.inv(1n - y));
+  deepStrictEqual(hex(numberToBytesLE(u, 32)), x25519.Gu);
+});
+
+describe('RFC7748', () => {
+  const rfc7748Mul = [
+    {
+      scalar: 'a546e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449ac4',
+      u: 'e6db6867583030db3594c1a424b15f7c726624ec26b3353b10a903a6d0ab1c4c',
+      outputU: 'c3da55379de9c6908e94ea4df28d084f32eccf03491c71f754b4075577a28552',
+    },
+    {
+      scalar: '4b66e9d4d1b4673c5ad22691957d6af5c11b6421e0ea01d42ca4169e7918ba0d',
+      u: 'e5210f12786811d3f4b7959d0538ae2c31dbe7106fc03c3efc4cd549c715a493',
+      outputU: '95cbde9476e8907d7aade45cb4b873f88b595a68799fa152e6f8f7647aac7957',
+    },
+  ];
+  for (let i = 0; i < rfc7748Mul.length; i++) {
+    const v = rfc7748Mul[i];
+    should(`scalarMult (${i})`, () => {
+      deepStrictEqual(hex(x25519.scalarMult(v.scalar, v.u)), v.outputU);
+    });
+  }
+
+  const rfc7748Iter = [
+    { scalar: '422c8e7a6227d7bca1350b3e2bb7279f7897b87bb6854b783c60e80311ae3079', iters: 1 },
+    { scalar: '684cf59ba83309552800ef566f2f4d3c1c3887c49360e3875f2eb94d99532c51', iters: 1000 },
+    // { scalar: '7c3911e0ab2586fd864497297e575e6f3bc601c0883c30df5f4dd2d24f665424', iters: 1000000 },
+  ];
+  for (let i = 0; i < rfc7748Iter.length; i++) {
+    const { scalar, iters } = rfc7748Iter[i];
+    should(`scalarMult iteration (${i})`, () => {
+      let k = x25519.Gu;
+      for (let i = 0, u = k; i < iters; i++) [k, u] = [x25519.scalarMult(k, u), k];
+      deepStrictEqual(hex(k), scalar);
+    });
+  }
+
+  should('getSharedKey', () => {
+    const alicePrivate = '77076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c2a';
+    const alicePublic = '8520f0098930a754748b7ddcb43ef75a0dbf3a0d26381af4eba4a98eaa9b4e6a';
+    const bobPrivate = '5dab087e624a8a4b79e17f8b83800ee66f3bb1292618b6fd1c2f8b27ff88e0eb';
+    const bobPublic = 'de9edb7d7b7dc1b4d35b61c2ece435373f8343c85b78674dadfc7e146f882b4f';
+    const shared = '4a5d9d5ba4ce2de1728e3bf480350f25e07e21c947d19e3376f09b3c1e161742';
+    deepStrictEqual(alicePublic, hex(x25519.getPublicKey(alicePrivate)));
+    deepStrictEqual(bobPublic, hex(x25519.getPublicKey(bobPrivate)));
+    deepStrictEqual(hex(x25519.scalarMult(alicePrivate, bobPublic)), shared);
+    deepStrictEqual(hex(x25519.scalarMult(bobPrivate, alicePublic)), shared);
+  });
+});
+describe('Wycheproof', () => {
+  const group = x25519vectors.testGroups[0];
+  should(`X25519`, () => {
+    for (let i = 0; i < group.tests.length; i++) {
+      const v = group.tests[i];
+      const comment = `(${i}, ${v.result}) ${v.comment}`;
+      if (v.result === 'valid' || v.result === 'acceptable') {
+        try {
+          const shared = hex(x25519.scalarMult(v.private, v.public));
+          deepStrictEqual(shared, v.shared, comment);
+        } catch (e) {
+          // We are more strict
+          if (e.message.includes('Expected valid scalar')) return;
+          if (e.message.includes('Invalid private or public key received')) return;
+          throw e;
+        }
+      } else if (v.result === 'invalid') {
+        let failed = false;
+        try {
+          x25519.scalarMult(v.private, v.public);
+        } catch (error) {
+          failed = true;
+        }
+        deepStrictEqual(failed, true, comment);
+      } else throw new Error('unknown test result');
+    }
+  });
+});
+
+function utf8ToBytes(str) {
+  if (typeof str !== 'string') {
+    throw new Error(`utf8ToBytes expected string, got ${typeof str}`);
+  }
+  return new TextEncoder().encode(str);
+}
+
+describe('ristretto255', () => {
+  should('follow the byte encodings of small multiples', () => {
+    const encodingsOfSmallMultiples = [
+      // This is the identity point
+      '0000000000000000000000000000000000000000000000000000000000000000',
+      // This is the basepoint
+      'e2f2ae0a6abc4e71a884a961c500515f58e30b6aa582dd8db6a65945e08d2d76',
+      // These are small multiples of the basepoint
+      '6a493210f7499cd17fecb510ae0cea23a110e8d5b901f8acadd3095c73a3b919',
+      '94741f5d5d52755ece4f23f044ee27d5d1ea1e2bd196b462166b16152a9d0259',
+      'da80862773358b466ffadfe0b3293ab3d9fd53c5ea6c955358f568322daf6a57',
+      'e882b131016b52c1d3337080187cf768423efccbb517bb495ab812c4160ff44e',
+      'f64746d3c92b13050ed8d80236a7f0007c3b3f962f5ba793d19a601ebb1df403',
+      '44f53520926ec81fbd5a387845beb7df85a96a24ece18738bdcfa6a7822a176d',
+      '903293d8f2287ebe10e2374dc1a53e0bc887e592699f02d077d5263cdd55601c',
+      '02622ace8f7303a31cafc63f8fc48fdc16e1c8c8d234b2f0d6685282a9076031',
+      '20706fd788b2720a1ed2a5dad4952b01f413bcf0e7564de8cdc816689e2db95f',
+      'bce83f8ba5dd2fa572864c24ba1810f9522bc6004afe95877ac73241cafdab42',
+      'e4549ee16b9aa03099ca208c67adafcafa4c3f3e4e5303de6026e3ca8ff84460',
+      'aa52e000df2e16f55fb1032fc33bc42742dad6bd5a8fc0be0167436c5948501f',
+      '46376b80f409b29dc2b5f6f0c52591990896e5716f41477cd30085ab7f10301e',
+      'e0c418f7c8d9c4cdd7395b93ea124f3ad99021bb681dfc3302a9d99a2e53e64e',
+    ];
+    let B = RistrettoPoint.BASE;
+    let P = RistrettoPoint.ZERO;
+    for (const encoded of encodingsOfSmallMultiples) {
+      deepStrictEqual(P.toHex(), encoded);
+      deepStrictEqual(RistrettoPoint.fromHex(encoded).toHex(), encoded);
+      P = P.add(B);
+    }
+  });
+  should('not convert bad bytes encoding', () => {
+    const badEncodings = [
+      // These are all bad because they're non-canonical field encodings.
+      '00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff',
+      'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
+      'f3ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
+      'edffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
+      // These are all bad because they're negative field elements.
+      '0100000000000000000000000000000000000000000000000000000000000000',
+      '01ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
+      'ed57ffd8c914fb201471d1c3d245ce3c746fcbe63a3679d51b6a516ebebe0e20',
+      'c34c4e1826e5d403b78e246e88aa051c36ccf0aafebffe137d148a2bf9104562',
+      'c940e5a4404157cfb1628b108db051a8d439e1a421394ec4ebccb9ec92a8ac78',
+      '47cfc5497c53dc8e61c91d17fd626ffb1c49e2bca94eed052281b510b1117a24',
+      'f1c6165d33367351b0da8f6e4511010c68174a03b6581212c71c0e1d026c3c72',
+      '87260f7a2f12495118360f02c26a470f450dadf34a413d21042b43b9d93e1309',
+      // These are all bad because they give a nonsquare x².
+      '26948d35ca62e643e26a83177332e6b6afeb9d08e4268b650f1f5bbd8d81d371',
+      '4eac077a713c57b4f4397629a4145982c661f48044dd3f96427d40b147d9742f',
+      'de6a7b00deadc788eb6b6c8d20c0ae96c2f2019078fa604fee5b87d6e989ad7b',
+      'bcab477be20861e01e4a0e295284146a510150d9817763caf1a6f4b422d67042',
+      '2a292df7e32cababbd9de088d1d1abec9fc0440f637ed2fba145094dc14bea08',
+      'f4a9e534fc0d216c44b218fa0c42d99635a0127ee2e53c712f70609649fdff22',
+      '8268436f8c4126196cf64b3c7ddbda90746a378625f9813dd9b8457077256731',
+      '2810e5cbc2cc4d4eece54f61c6f69758e289aa7ab440b3cbeaa21995c2f4232b',
+      // These are all bad because they give a negative xy value.
+      '3eb858e78f5a7254d8c9731174a94f76755fd3941c0ac93735c07ba14579630e',
+      'a45fdc55c76448c049a1ab33f17023edfb2be3581e9c7aade8a6125215e04220',
+      'd483fe813c6ba647ebbfd3ec41adca1c6130c2beeee9d9bf065c8d151c5f396e',
+      '8a2e1d30050198c65a54483123960ccc38aef6848e1ec8f5f780e8523769ba32',
+      '32888462f8b486c68ad7dd9610be5192bbeaf3b443951ac1a8118419d9fa097b',
+      '227142501b9d4355ccba290404bde41575b037693cef1f438c47f8fbf35d1165',
+      '5c37cc491da847cfeb9281d407efc41e15144c876e0170b499a96a22ed31e01e',
+      '445425117cb8c90edcbc7c1cc0e74f747f2c1efa5630a967c64f287792a48a4b',
+      // This is s = -1, which causes y = 0.
+      'ecffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
+    ];
+    for (const badBytes of badEncodings) {
+      const b = hexToBytes(badBytes);
+      throws(() => RistrettoPoint.fromHex(b), badBytes);
+    }
+  });
+  should('create right points from uniform hash', () => {
+    const labels = [
+      'Ristretto is traditionally a short shot of espresso coffee',
+      'made with the normal amount of ground coffee but extracted with',
+      'about half the amount of water in the same amount of time',
+      'by using a finer grind.',
+      'This produces a concentrated shot of coffee per volume.',
+      'Just pulling a normal shot short will produce a weaker shot',
+      'and is not a Ristretto as some believe.',
+    ];
+    const encodedHashToPoints = [
+      '3066f82a1a747d45120d1740f14358531a8f04bbffe6a819f86dfe50f44a0a46',
+      'f26e5b6f7d362d2d2a94c5d0e7602cb4773c95a2e5c31a64f133189fa76ed61b',
+      '006ccd2a9e6867e6a2c5cea83d3302cc9de128dd2a9a57dd8ee7b9d7ffe02826',
+      'f8f0c87cf237953c5890aec3998169005dae3eca1fbb04548c635953c817f92a',
+      'ae81e7dedf20a497e10c304a765c1767a42d6e06029758d2d7e8ef7cc4c41179',
+      'e2705652ff9f5e44d3e841bf1c251cf7dddb77d140870d1ab2ed64f1a9ce8628',
+      '80bd07262511cdde4863f8a7434cef696750681cb9510eea557088f76d9e5065',
+    ];
+
+    for (let i = 0; i < labels.length; i++) {
+      const hash = sha512(utf8ToBytes(labels[i]));
+      const point = RistrettoPoint.hashToCurve(hash);
+      deepStrictEqual(point.toHex(), encodedHashToPoints[i]);
+    }
+  });
+});
+
+// ESM is broken.
+import url from 'url';
+if (import.meta.url === url.pathToFileURL(process.argv[1]).href) {
+  should.run();
+}
diff --git a/test/ed25519.helpers.js b/test/ed25519.helpers.js
new file mode 100644
index 0000000..69246e8
--- /dev/null
+++ b/test/ed25519.helpers.js
@@ -0,0 +1 @@
+export { ed25519, ED25519_TORSION_SUBGROUP } from '../lib/esm/ed25519.js';
diff --git a/test/ed25519.test.js b/test/ed25519.test.js
index a1eb6a9..dbc4f4f 100644
--- a/test/ed25519.test.js
+++ b/test/ed25519.test.js
@@ -1,21 +1,11 @@
-import { deepEqual, deepStrictEqual, strictEqual, throws } from 'assert';
-import { describe, should } from 'micro-should';
-import * as fc from 'fast-check';
-import {
-  ed25519,
-  ed25519ctx,
-  ed25519ph,
-  x25519,
-  RistrettoPoint,
-  ED25519_TORSION_SUBGROUP,
-} from '../lib/esm/ed25519.js';
+import { deepStrictEqual, strictEqual, throws } from 'assert';
 import { readFileSync } from 'fs';
-import { default as zip215 } from './ed25519/zip215.json' assert { type: 'json' };
 import { hexToBytes, bytesToHex, randomBytes } from '@noble/hashes/utils';
-import { numberToBytesLE } from '../lib/esm/abstract/utils.js';
-import { sha512 } from '@noble/hashes/sha512';
+import * as fc from 'fast-check';
+import { describe, should } from 'micro-should';
+import { ed25519, ED25519_TORSION_SUBGROUP } from './ed25519.helpers.js';
 import { default as ed25519vectors } from './wycheproof/eddsa_test.json' assert { type: 'json' };
-import { default as x25519vectors } from './wycheproof/x25519_test.json' assert { type: 'json' };
+import { default as zip215 } from './ed25519/zip215.json' assert { type: 'json' };
 
 describe('ed25519', () => {
   const ed = ed25519;
@@ -292,104 +282,6 @@ describe('ed25519', () => {
   // //   const signature = await ristretto25519.sign(MESSAGE, PRIVATE_KEY);
   // //   expect(await ristretto25519.verify(signature, WRONG_MESSAGE, publicKey)).toBe(false);
   // // });
-  should('ristretto255/should follow the byte encodings of small multiples', () => {
-    const encodingsOfSmallMultiples = [
-      // This is the identity point
-      '0000000000000000000000000000000000000000000000000000000000000000',
-      // This is the basepoint
-      'e2f2ae0a6abc4e71a884a961c500515f58e30b6aa582dd8db6a65945e08d2d76',
-      // These are small multiples of the basepoint
-      '6a493210f7499cd17fecb510ae0cea23a110e8d5b901f8acadd3095c73a3b919',
-      '94741f5d5d52755ece4f23f044ee27d5d1ea1e2bd196b462166b16152a9d0259',
-      'da80862773358b466ffadfe0b3293ab3d9fd53c5ea6c955358f568322daf6a57',
-      'e882b131016b52c1d3337080187cf768423efccbb517bb495ab812c4160ff44e',
-      'f64746d3c92b13050ed8d80236a7f0007c3b3f962f5ba793d19a601ebb1df403',
-      '44f53520926ec81fbd5a387845beb7df85a96a24ece18738bdcfa6a7822a176d',
-      '903293d8f2287ebe10e2374dc1a53e0bc887e592699f02d077d5263cdd55601c',
-      '02622ace8f7303a31cafc63f8fc48fdc16e1c8c8d234b2f0d6685282a9076031',
-      '20706fd788b2720a1ed2a5dad4952b01f413bcf0e7564de8cdc816689e2db95f',
-      'bce83f8ba5dd2fa572864c24ba1810f9522bc6004afe95877ac73241cafdab42',
-      'e4549ee16b9aa03099ca208c67adafcafa4c3f3e4e5303de6026e3ca8ff84460',
-      'aa52e000df2e16f55fb1032fc33bc42742dad6bd5a8fc0be0167436c5948501f',
-      '46376b80f409b29dc2b5f6f0c52591990896e5716f41477cd30085ab7f10301e',
-      'e0c418f7c8d9c4cdd7395b93ea124f3ad99021bb681dfc3302a9d99a2e53e64e',
-    ];
-    let B = RistrettoPoint.BASE;
-    let P = RistrettoPoint.ZERO;
-    for (const encoded of encodingsOfSmallMultiples) {
-      deepStrictEqual(P.toHex(), encoded);
-      deepStrictEqual(RistrettoPoint.fromHex(encoded).toHex(), encoded);
-      P = P.add(B);
-    }
-  });
-  should('ristretto255/should not convert bad bytes encoding', () => {
-    const badEncodings = [
-      // These are all bad because they're non-canonical field encodings.
-      '00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff',
-      'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
-      'f3ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
-      'edffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
-      // These are all bad because they're negative field elements.
-      '0100000000000000000000000000000000000000000000000000000000000000',
-      '01ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
-      'ed57ffd8c914fb201471d1c3d245ce3c746fcbe63a3679d51b6a516ebebe0e20',
-      'c34c4e1826e5d403b78e246e88aa051c36ccf0aafebffe137d148a2bf9104562',
-      'c940e5a4404157cfb1628b108db051a8d439e1a421394ec4ebccb9ec92a8ac78',
-      '47cfc5497c53dc8e61c91d17fd626ffb1c49e2bca94eed052281b510b1117a24',
-      'f1c6165d33367351b0da8f6e4511010c68174a03b6581212c71c0e1d026c3c72',
-      '87260f7a2f12495118360f02c26a470f450dadf34a413d21042b43b9d93e1309',
-      // These are all bad because they give a nonsquare x².
-      '26948d35ca62e643e26a83177332e6b6afeb9d08e4268b650f1f5bbd8d81d371',
-      '4eac077a713c57b4f4397629a4145982c661f48044dd3f96427d40b147d9742f',
-      'de6a7b00deadc788eb6b6c8d20c0ae96c2f2019078fa604fee5b87d6e989ad7b',
-      'bcab477be20861e01e4a0e295284146a510150d9817763caf1a6f4b422d67042',
-      '2a292df7e32cababbd9de088d1d1abec9fc0440f637ed2fba145094dc14bea08',
-      'f4a9e534fc0d216c44b218fa0c42d99635a0127ee2e53c712f70609649fdff22',
-      '8268436f8c4126196cf64b3c7ddbda90746a378625f9813dd9b8457077256731',
-      '2810e5cbc2cc4d4eece54f61c6f69758e289aa7ab440b3cbeaa21995c2f4232b',
-      // These are all bad because they give a negative xy value.
-      '3eb858e78f5a7254d8c9731174a94f76755fd3941c0ac93735c07ba14579630e',
-      'a45fdc55c76448c049a1ab33f17023edfb2be3581e9c7aade8a6125215e04220',
-      'd483fe813c6ba647ebbfd3ec41adca1c6130c2beeee9d9bf065c8d151c5f396e',
-      '8a2e1d30050198c65a54483123960ccc38aef6848e1ec8f5f780e8523769ba32',
-      '32888462f8b486c68ad7dd9610be5192bbeaf3b443951ac1a8118419d9fa097b',
-      '227142501b9d4355ccba290404bde41575b037693cef1f438c47f8fbf35d1165',
-      '5c37cc491da847cfeb9281d407efc41e15144c876e0170b499a96a22ed31e01e',
-      '445425117cb8c90edcbc7c1cc0e74f747f2c1efa5630a967c64f287792a48a4b',
-      // This is s = -1, which causes y = 0.
-      'ecffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f',
-    ];
-    for (const badBytes of badEncodings) {
-      const b = hexToBytes(badBytes);
-      throws(() => RistrettoPoint.fromHex(b), badBytes);
-    }
-  });
-  should('ristretto255/should create right points from uniform hash', () => {
-    const labels = [
-      'Ristretto is traditionally a short shot of espresso coffee',
-      'made with the normal amount of ground coffee but extracted with',
-      'about half the amount of water in the same amount of time',
-      'by using a finer grind.',
-      'This produces a concentrated shot of coffee per volume.',
-      'Just pulling a normal shot short will produce a weaker shot',
-      'and is not a Ristretto as some believe.',
-    ];
-    const encodedHashToPoints = [
-      '3066f82a1a747d45120d1740f14358531a8f04bbffe6a819f86dfe50f44a0a46',
-      'f26e5b6f7d362d2d2a94c5d0e7602cb4773c95a2e5c31a64f133189fa76ed61b',
-      '006ccd2a9e6867e6a2c5cea83d3302cc9de128dd2a9a57dd8ee7b9d7ffe02826',
-      'f8f0c87cf237953c5890aec3998169005dae3eca1fbb04548c635953c817f92a',
-      'ae81e7dedf20a497e10c304a765c1767a42d6e06029758d2d7e8ef7cc4c41179',
-      'e2705652ff9f5e44d3e841bf1c251cf7dddb77d140870d1ab2ed64f1a9ce8628',
-      '80bd07262511cdde4863f8a7434cef696750681cb9510eea557088f76d9e5065',
-    ];
-
-    for (let i = 0; i < labels.length; i++) {
-      const hash = sha512(utf8ToBytes(labels[i]));
-      const point = RistrettoPoint.hashToCurve(hash);
-      deepStrictEqual(point.toHex(), encodedHashToPoints[i]);
-    }
-  });
 
   should('input immutability: sign/verify are immutable', () => {
     const privateKey = ed.utils.randomPrivateKey();
@@ -432,51 +324,6 @@ describe('ed25519', () => {
     throws(() => ed.verify(sig, 'deadbeef', Point.BASE));
   });
 
-  const rfc7748Mul = [
-    {
-      scalar: 'a546e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449ac4',
-      u: 'e6db6867583030db3594c1a424b15f7c726624ec26b3353b10a903a6d0ab1c4c',
-      outputU: 'c3da55379de9c6908e94ea4df28d084f32eccf03491c71f754b4075577a28552',
-    },
-    {
-      scalar: '4b66e9d4d1b4673c5ad22691957d6af5c11b6421e0ea01d42ca4169e7918ba0d',
-      u: 'e5210f12786811d3f4b7959d0538ae2c31dbe7106fc03c3efc4cd549c715a493',
-      outputU: '95cbde9476e8907d7aade45cb4b873f88b595a68799fa152e6f8f7647aac7957',
-    },
-  ];
-  for (let i = 0; i < rfc7748Mul.length; i++) {
-    const v = rfc7748Mul[i];
-    should(`RFC7748: scalarMult (${i})`, () => {
-      deepStrictEqual(hex(x25519.scalarMult(v.scalar, v.u)), v.outputU);
-    });
-  }
-
-  const rfc7748Iter = [
-    { scalar: '422c8e7a6227d7bca1350b3e2bb7279f7897b87bb6854b783c60e80311ae3079', iters: 1 },
-    { scalar: '684cf59ba83309552800ef566f2f4d3c1c3887c49360e3875f2eb94d99532c51', iters: 1000 },
-    // { scalar: '7c3911e0ab2586fd864497297e575e6f3bc601c0883c30df5f4dd2d24f665424', iters: 1000000 },
-  ];
-  for (let i = 0; i < rfc7748Iter.length; i++) {
-    const { scalar, iters } = rfc7748Iter[i];
-    should(`RFC7748: scalarMult iteration (${i})`, () => {
-      let k = x25519.Gu;
-      for (let i = 0, u = k; i < iters; i++) [k, u] = [x25519.scalarMult(k, u), k];
-      deepStrictEqual(hex(k), scalar);
-    });
-  }
-
-  should('RFC7748 getSharedKey', () => {
-    const alicePrivate = '77076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c2a';
-    const alicePublic = '8520f0098930a754748b7ddcb43ef75a0dbf3a0d26381af4eba4a98eaa9b4e6a';
-    const bobPrivate = '5dab087e624a8a4b79e17f8b83800ee66f3bb1292618b6fd1c2f8b27ff88e0eb';
-    const bobPublic = 'de9edb7d7b7dc1b4d35b61c2ece435373f8343c85b78674dadfc7e146f882b4f';
-    const shared = '4a5d9d5ba4ce2de1728e3bf480350f25e07e21c947d19e3376f09b3c1e161742';
-    deepStrictEqual(alicePublic, hex(x25519.getPublicKey(alicePrivate)));
-    deepStrictEqual(bobPublic, hex(x25519.getPublicKey(bobPrivate)));
-    deepStrictEqual(hex(x25519.scalarMult(alicePrivate, bobPublic)), shared);
-    deepStrictEqual(hex(x25519.scalarMult(bobPrivate, alicePublic)), shared);
-  });
-
   // should('X25519/getSharedSecret() should be commutative', () => {
   //   for (let i = 0; i < 512; i++) {
   //     const asec = ed.utils.randomPrivateKey();
@@ -499,35 +346,6 @@ describe('ed25519', () => {
   //   );
   // });
 
-  {
-    const group = x25519vectors.testGroups[0];
-    should(`Wycheproof/X25519`, () => {
-      for (let i = 0; i < group.tests.length; i++) {
-        const v = group.tests[i];
-        const comment = `(${i}, ${v.result}) ${v.comment}`;
-        if (v.result === 'valid' || v.result === 'acceptable') {
-          try {
-            const shared = hex(x25519.scalarMult(v.private, v.public));
-            deepStrictEqual(shared, v.shared, comment);
-          } catch (e) {
-            // We are more strict
-            if (e.message.includes('Expected valid scalar')) return;
-            if (e.message.includes('Invalid private or public key received')) return;
-            throw e;
-          }
-        } else if (v.result === 'invalid') {
-          let failed = false;
-          try {
-            x25519.scalarMult(v.private, v.public);
-          } catch (error) {
-            failed = true;
-          }
-          deepStrictEqual(failed, true, comment);
-        } else throw new Error('unknown test result');
-      }
-    });
-  }
-
   should(`Wycheproof/ED25519`, () => {
     for (let g = 0; g < ed25519vectors.testGroups.length; g++) {
       const group = ed25519vectors.testGroups[g];
@@ -559,91 +377,6 @@ describe('ed25519', () => {
     deepStrictEqual(ed.verify(signature, message, publicKey), true);
   });
 
-  const VECTORS_RFC8032_CTX = [
-    {
-      secretKey: '0305334e381af78f141cb666f6199f57bc3495335a256a95bd2a55bf546663f6',
-      publicKey: 'dfc9425e4f968f7f0c29f0259cf5f9aed6851c2bb4ad8bfb860cfee0ab248292',
-      message: 'f726936d19c800494e3fdaff20b276a8',
-      context: '666f6f',
-      signature:
-        '55a4cc2f70a54e04288c5f4cd1e45a7b' +
-        'b520b36292911876cada7323198dd87a' +
-        '8b36950b95130022907a7fb7c4e9b2d5' +
-        'f6cca685a587b4b21f4b888e4e7edb0d',
-    },
-    {
-      secretKey: '0305334e381af78f141cb666f6199f57bc3495335a256a95bd2a55bf546663f6',
-      publicKey: 'dfc9425e4f968f7f0c29f0259cf5f9aed6851c2bb4ad8bfb860cfee0ab248292',
-      message: 'f726936d19c800494e3fdaff20b276a8',
-      context: '626172',
-      signature:
-        'fc60d5872fc46b3aa69f8b5b4351d580' +
-        '8f92bcc044606db097abab6dbcb1aee3' +
-        '216c48e8b3b66431b5b186d1d28f8ee1' +
-        '5a5ca2df6668346291c2043d4eb3e90d',
-    },
-    {
-      secretKey: '0305334e381af78f141cb666f6199f57bc3495335a256a95bd2a55bf546663f6',
-      publicKey: 'dfc9425e4f968f7f0c29f0259cf5f9aed6851c2bb4ad8bfb860cfee0ab248292',
-      message: '508e9e6882b979fea900f62adceaca35',
-      context: '666f6f',
-      signature:
-        '8b70c1cc8310e1de20ac53ce28ae6e72' +
-        '07f33c3295e03bb5c0732a1d20dc6490' +
-        '8922a8b052cf99b7c4fe107a5abb5b2c' +
-        '4085ae75890d02df26269d8945f84b0b',
-    },
-    {
-      secretKey: 'ab9c2853ce297ddab85c993b3ae14bcad39b2c682beabc27d6d4eb20711d6560',
-      publicKey: '0f1d1274943b91415889152e893d80e93275a1fc0b65fd71b4b0dda10ad7d772',
-      message: 'f726936d19c800494e3fdaff20b276a8',
-      context: '666f6f',
-      signature:
-        '21655b5f1aa965996b3f97b3c849eafb' +
-        'a922a0a62992f73b3d1b73106a84ad85' +
-        'e9b86a7b6005ea868337ff2d20a7f5fb' +
-        'd4cd10b0be49a68da2b2e0dc0ad8960f',
-    },
-  ];
-
-  for (let i = 0; i < VECTORS_RFC8032_CTX.length; i++) {
-    const v = VECTORS_RFC8032_CTX[i];
-    should(`RFC8032ctx/${i}`, () => {
-      deepStrictEqual(hex(ed25519ctx.getPublicKey(v.secretKey)), v.publicKey);
-      deepStrictEqual(hex(ed25519ctx.sign(v.message, v.secretKey, v.context)), v.signature);
-      deepStrictEqual(ed25519ctx.verify(v.signature, v.message, v.publicKey, v.context), true);
-    });
-  }
-
-  const VECTORS_RFC8032_PH = [
-    {
-      secretKey: '833fe62409237b9d62ec77587520911e9a759cec1d19755b7da901b96dca3d42',
-      publicKey: 'ec172b93ad5e563bf4932c70e1245034c35467ef2efd4d64ebf819683467e2bf',
-      message: '616263',
-      signature:
-        '98a70222f0b8121aa9d30f813d683f80' +
-        '9e462b469c7ff87639499bb94e6dae41' +
-        '31f85042463c2a355a2003d062adf5aa' +
-        'a10b8c61e636062aaad11c2a26083406',
-    },
-  ];
-
-  for (let i = 0; i < VECTORS_RFC8032_PH.length; i++) {
-    const v = VECTORS_RFC8032_PH[i];
-    should(`RFC8032ph/${i}`, () => {
-      deepStrictEqual(hex(ed25519ph.getPublicKey(v.secretKey)), v.publicKey);
-      deepStrictEqual(hex(ed25519ph.sign(v.message, v.secretKey)), v.signature);
-      deepStrictEqual(ed25519ph.verify(v.signature, v.message, v.publicKey), true);
-    });
-  }
-
-  should('X25519 base point', () => {
-    const { y } = ed25519.ExtendedPoint.BASE;
-    const { Fp } = ed25519.CURVE;
-    const u = Fp.create((y + 1n) * Fp.inv(1n - y));
-    deepStrictEqual(hex(numberToBytesLE(u, 32)), x25519.Gu);
-  });
-
   should('isTorsionFree()', () => {
     const orig = ed.utils.getExtendedPublicKey(ed.utils.randomPrivateKey()).point;
     for (const hex of ED25519_TORSION_SUBGROUP.slice(1)) {