bigchaindb/js-bigchaindb-driver
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seed from hash of secret

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This commit is contained in:
diminator 2017-04-03 21:35:19 +02:00
parent a338a5c570
commit f5123832bf
2 changed files with 18 additions and 6 deletions
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8
dist/node/index.js vendored
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@ -3,11 +3,11 @@
Object.defineProperty(exports, "__esModule", { Object.defineProperty(exports, "__esModule", {
value: true value: true
}); });
exports.Connection = exports.Transaction = exports.Ed25519KeyPair = undefined; exports.Connection = exports.Transaction = exports.Ed25519Keypair = undefined;
var _Ed25519Keypair = require('./Ed25519Keypair'); var _Ed25519Keypair2 = require('./Ed25519Keypair');
var _Ed25519Keypair2 = _interopRequireDefault(_Ed25519Keypair); var _Ed25519Keypair3 = _interopRequireDefault(_Ed25519Keypair2);
var _transaction = require('./transaction'); var _transaction = require('./transaction');
@ -21,6 +21,6 @@ function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj;
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
exports.Ed25519KeyPair = _Ed25519Keypair2.default; exports.Ed25519Keypair = _Ed25519Keypair3.default;
exports.Transaction = _Transaction; exports.Transaction = _Transaction;
exports.Connection = _Connection; exports.Connection = _Connection;

16
src/Ed25519Keypair.js
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@ -1,14 +1,26 @@
import base58 from 'bs58'; import base58 from 'bs58';
import nacl from 'tweetnacl'; import nacl from 'tweetnacl';
import sha3 from 'js-sha3';
/** /**
* @class Keypair Ed25519 keypair in base58 (as BigchainDB expects base58 keys) * @class Keypair Ed25519 keypair in base58 (as BigchainDB expects base58 keys)
* @type {Object} * @type {Object}
* @param {number} secret A seed that will be used as a key derivation function
* @property {string} publicKey * @property {string} publicKey
* @property {string} privateKey * @property {string} privateKey
*/ */
export default function Ed25519Keypair() { export default function Ed25519Keypair(secret) {
const keyPair = nacl.sign.keyPair(); let keyPair;
if (secret) {
// Quick and dirty: use key derivation function instead
const secretHash = sha3.sha3_256
.create()
.update(secret)
.array();
keyPair = nacl.sign.keyPair.fromSeed(new Uint8Array(secretHash))
} else {
keyPair = nacl.sign.keyPair();
}
this.publicKey = base58.encode(keyPair.publicKey); this.publicKey = base58.encode(keyPair.publicKey);
// tweetnacl's generated secret key is the secret key + public key (resulting in a 64-byte buffer) // tweetnacl's generated secret key is the secret key + public key (resulting in a 64-byte buffer)
this.privateKey = base58.encode(keyPair.secretKey.slice(0, 32)); this.privateKey = base58.encode(keyPair.secretKey.slice(0, 32));