BTCPrivate
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bitauth
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add padding of leading zeros

This commit is contained in:
Braydon Fuller 2014-10-29 19:09:53 -04:00
parent 1ae18d227f
commit 74cecb7fdf
1 changed files with 18 additions and 4 deletions
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22
lib/bitauth.js
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@ -5,6 +5,18 @@ var bs58 = require('bs58');
var BitAuth = {};
/**
* Will add leading zeros to hex string
*
* @returns {String} A hex string
*/
BitAuth._addPaddingToHex = function(hex){
while( hex.length < 64 ){
hex = '0'+hex;
}
return hex;
}
/**
* Will return a key pair and identity
*
@ -17,12 +29,13 @@ BitAuth.generateSin = function() {
var keys = ecdsa.genKeyPair();
var publicKey = this.getPublicKeyFromPrivateKey(keys.getPrivate('hex'));
var privateKey = this._addPaddingToHex(keys.getPrivate('hex'));
var publicKey = this.getPublicKeyFromPrivateKey(privateKey);
var sin = this.getSinFromPublicKey(publicKey);
var sinObj = {
created: new Date().getTime(),
priv: keys.getPrivate('hex'),
priv: privateKey,
pub: publicKey,
sin: sin
}
@ -43,8 +56,9 @@ BitAuth.getPublicKeyFromPrivateKey = function(privkey) {
// compressed public key
var pubKey = keys.getPublic();
var xbuf = new Buffer(pubKey.x.toString('hex'), 'hex');
var ybuf = new Buffer(pubKey.y.toString('hex'), 'hex');
var xbuf = new Buffer(this._addPaddingToHex(pubKey.x.toString('hex')), 'hex');
var ybuf = new Buffer(this._addPaddingToHex(pubKey.y.toString('hex')), 'hex');
if (ybuf[ybuf.length-1] % 2) { //odd
var pub = Buffer.concat([new Buffer([3]), xbuf]);
}