bitcore/lib/key.js

55 lines
1.3 KiB
JavaScript

var Address = require('../lib/address');
var Privkey = require('./privkey');
var Pubkey = require('./pubkey');
var Random = require('./random');
var Bn = require('./bn');
var point = require('./point');
var Key = function Key(privkey, pubkey) {
if (!(this instanceof Key))
return new Key(privkey, pubkey);
this.privkey = privkey;
this.pubkey = pubkey;
};
Key.prototype.fromRandom = function() {
do {
var privbuf = Random.getRandomBuffer(32);
this.privkey = new Privkey(Bn(privbuf));
var condition = this.privkey.bn.lt(point.getN());
} while (!condition);
this.privkey2pubkey();
return this;
};
Key.prototype.fromString = function(str) {
var obj = JSON.parse(str);
if (obj.privkey) {
this.privkey = new Privkey();
this.privkey.fromString(obj.privkey);
}
if (obj.pubkey) {
this.pubkey = new Pubkey();
this.pubkey.fromString(obj.pubkey);
}
};
Key.prototype.getAddress = function(network, compressed) {
return (new Address()).fromPubkey(this.pubkey, network, compressed);
};
Key.prototype.privkey2pubkey = function() {
this.pubkey = new Pubkey(point.getG().mul(this.privkey.bn));
};
Key.prototype.toString = function() {
var obj = {};
if (this.privkey)
obj.privkey = this.privkey.toString();
if (this.pubkey)
obj.pubkey = this.pubkey.toString();
return JSON.stringify(obj);
};
module.exports = Key;