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Текущая директория: /opt/BitGoJS/modules/sdk-lib-mpc/dist/src/curves
Просмотр файла: secp256k1Bip32HdTree.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Secp256k1Bip32HdTree = void 0;
const crypto_1 = require("crypto");
const secp256k1_1 = require("./secp256k1");
const util_1 = require("../util");
const util_2 = require("./util");
class Secp256k1Bip32HdTree {
publicDerive(keychain, path) {
const indices = (0, util_2.pathToIndices)(path);
function deriveIndex(acc, index) {
const [pk, chaincode] = acc;
const I = deriveSecp256k1Helper(index, chaincode, pk);
const il = (0, util_1.bigIntFromBufferBE)(I.slice(0, 32));
const ir = (0, util_1.bigIntFromBufferBE)(I.slice(32));
const left_pk = Secp256k1Bip32HdTree.curve.pointAdd(pk, Secp256k1Bip32HdTree.curve.basePointMult(il));
return [left_pk, ir];
}
const [pk, chaincode] = indices.reduce(deriveIndex, deriveIndex([keychain.pk, keychain.chaincode], indices.shift()));
return { pk, chaincode };
}
privateDerive(keychain, path) {
const indices = (0, util_2.pathToIndices)(path);
function deriveIndex(acc, index) {
const [pk, sk, chaincode] = acc;
const I = deriveSecp256k1Helper(index, chaincode, pk, sk);
const il = (0, util_1.bigIntFromBufferBE)(I.slice(0, 32));
const ir = (0, util_1.bigIntFromBufferBE)(I.slice(32));
const left_pk = Secp256k1Bip32HdTree.curve.pointAdd(pk, Secp256k1Bip32HdTree.curve.basePointMult(il));
const left_sk = Secp256k1Bip32HdTree.curve.scalarAdd(sk, il);
return [left_pk, left_sk, ir];
}
const [pk, sk, chaincode] = indices.reduce(deriveIndex, deriveIndex([keychain.pk, keychain.sk, keychain.chaincode], indices.shift()));
return { pk, sk, chaincode };
}
}
exports.Secp256k1Bip32HdTree = Secp256k1Bip32HdTree;
Secp256k1Bip32HdTree.curve = new secp256k1_1.Secp256k1Curve();
function deriveSecp256k1Helper(index = 0, chaincode, pk, sk) {
const data = Buffer.alloc(33 + 4);
if (((index >>> 0) & 0x80000000) === 0) {
(0, util_1.bigIntToBufferBE)(pk, 33).copy(data);
}
else {
if (sk === undefined) {
throw new Error("Can't performed hardened derivation without private key");
}
data[0] = 0;
(0, util_1.bigIntToBufferBE)(sk, 32).copy(data, 1);
}
data.writeUInt32BE(index, 33);
return (0, crypto_1.createHmac)('sha512', (0, util_1.bigIntToBufferBE)(chaincode, 32)).update(data).digest();
}
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Выполнить 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