45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
'use strict';
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var secp256k1 = require('secp256k1');
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var BitAuth = require('./bitauth-common');
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var crypto = require('crypto');
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BitAuth._generateRandomPair = function() {
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var privateKeyBuffer = crypto.randomBytes(32); // may throw error if entropy sources drained
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var publicKeyBuffer = secp256k1.createPublicKey(privateKeyBuffer, true);
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return [privateKeyBuffer.toString('hex'), publicKeyBuffer.toString('hex')];
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};
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BitAuth._getPublicKeyFromPrivateKey = function(privkey) {
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var privateKeyBuffer;
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if (Buffer.isBuffer(privkey)) {
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privateKeyBuffer = privkey;
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} else {
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privateKeyBuffer = new Buffer(privkey, 'hex');
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}
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return secp256k1.createPublicKey(privateKeyBuffer, true);
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};
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BitAuth._sign = function(hashBuffer, privkey) {
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var privkeyBuffer;
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if (Buffer.isBuffer(privkey)) {
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privkeyBuffer = privkey;
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} else {
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privkeyBuffer = new Buffer(privkey, 'hex');
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}
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var signatureInfo = secp256k1.sign(hashBuffer, privkeyBuffer, true);
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return signatureInfo.toString('hex');
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};
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BitAuth._verifySignature = function(hashBuffer, signatureBuffer, pubkey) {
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var pubkeyBuffer;
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if (!Buffer.isBuffer(pubkey)){
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pubkeyBuffer = new Buffer(pubkey, 'hex');
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} else {
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pubkeyBuffer = pubkey;
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}
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return secp256k1.verify(hashBuffer, signatureBuffer, pubkeyBuffer) ? true : false;
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};
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module.exports = BitAuth;
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