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fix: check extraEntropy according to the spec

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Evgeny Vlasenko 2023-06-16 19:43:12 +04:00
parent 62e806cfaf
commit c71920722c
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1 changed files with 1 additions and 1 deletions
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src/abstract/weierstrass.ts
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@ -964,7 +964,7 @@ export function weierstrass(curveDef: CurveType): CurveFn {
if (ent != null) {
// K = HMAC_K(V || 0x00 || int2octets(x) || bits2octets(h1) || k')
const e = ent === true ? randomBytes(Fp.BYTES) : ent; // generate random bytes OR pass as-is
seedArgs.push(ensureBytes('extraEntropy', e, Fp.BYTES)); // check for being of size BYTES
seedArgs.push(ensureBytes('extraEntropy', e)); // check for being of size BYTES
}
const seed = ut.concatBytes(...seedArgs); // Step D of RFC6979 3.2
const m = h1int; // NOTE: no need to call bits2int second time here, it is inside truncateHash!