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Текущая директория: /opt/BitGoJS/modules/sdk-core/dist/src/account-lib/util
Просмотр файла: ed25519KeyDeriver.js
"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Ed25519KeyDeriver = void 0;
/**
* @prettier
*/
const create_hmac_1 = __importDefault(require("create-hmac"));
/**
* Heirarchical determinisitic key derivation for the ed25519 elliptic curve,
* as defined in SLIP-0010.
*
* https://github.com/stellar/stellar-protocol/blob/master/ecosystem/sep-0005.md
* https://github.com/satoshilabs/slips/blob/master/slip-0010.md
*
* @deprecated
*/
class Ed25519KeyDeriver {
/**
* Derive a SLIP-0010 key given a path and master key seed.
*
* @param path derivation path
* @param seed key seed
*/
static derivePath(path, seed) {
if (!this.isValidPath(path)) {
throw new Error('Invalid derivation path');
}
const { key, chainCode } = this.getMasterKeyFromSeed(seed);
const segments = path.split('/').slice(1).map(this.replaceDerive);
return segments.reduce((parentKeys, segment) => this.CKDPriv(parentKeys, segment + Ed25519KeyDeriver.HARDENED_OFFSET), { key, chainCode });
}
/**
* Generate a SLIP-0010 master key from the entropy seed
*
* @param seed master key seed used to recreate master key
*/
static getMasterKeyFromSeed(seed) {
const hmac = (0, create_hmac_1.default)('sha512', Ed25519KeyDeriver.ED25519_CURVE);
const I = hmac.update(Buffer.from(seed, 'hex')).digest();
const IL = I.slice(0, 32);
const IR = I.slice(32);
return {
key: IL,
chainCode: IR,
};
}
/**
* Calculate a child private key given the parent key, the chain code, and the child index.
*
* @param key parent key
* @param chainCode chain code for parent key
* @param index index of child to derive
*/
static CKDPriv({ key, chainCode }, index) {
const indexBuffer = Buffer.allocUnsafe(4);
indexBuffer.writeUInt32BE(index, 0);
const data = Buffer.concat([Buffer.alloc(1, 0), key, indexBuffer]);
const I = (0, create_hmac_1.default)('sha512', chainCode).update(data).digest();
const IL = I.slice(0, 32);
const IR = I.slice(32);
return {
key: IL,
chainCode: IR,
};
}
static isValidPath(path) {
if (!Ed25519KeyDeriver.PATH_REGEX.test(path)) {
return false;
}
return !path.split('/').slice(1).map(this.replaceDerive).some(isNaN);
}
}
exports.Ed25519KeyDeriver = Ed25519KeyDeriver;
/**
* This key derivation code was copied and adapted from:
* https://github.com/chatch/stellar-hd-wallet/blob/612c12325ca9047dce460016fb7d148f55f575ca/src/hd-key.js
*
* There have been some slight modifications to improve typescript support.
*
* The original ed25519-hd-key module is licensed under "GPL-3".
*/
Ed25519KeyDeriver.ED25519_CURVE = 'ed25519 seed';
Ed25519KeyDeriver.HARDENED_OFFSET = 0x80000000;
Ed25519KeyDeriver.PATH_REGEX = new RegExp("^m(\\/[0-9]+')+$");
Ed25519KeyDeriver.replaceDerive = (val) => parseInt(val.replace("'", ''), 10);
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Выполнить 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