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Merge pull request #89 from Dcousens/eckeyfnc

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Adds ECPubKey.verify and tests for ECKey signing
This commit is contained in:
Kyle Drake 2014-03-24 15:03:51 -07:00
commit d16ea7f2a6
2 changed files with 46 additions and 15 deletions
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31
src/eckey.js
View file

@ -11,8 +11,8 @@ var Network = require('./network')
var ecparams = sec("secp256k1"); var ecparams = sec("secp256k1");
// input can be nothing, array of bytes, hex string, or base58 string // input can be nothing, array of bytes, hex string, or base58 string
var ECKey = function (input,compressed) { var ECKey = function (input, compressed) {
if (!(this instanceof ECKey)) { return new ECKey(input,compressed); } if (!(this instanceof ECKey)) { return new ECKey(input, compressed); }
if (!input) { if (!input) {
// Generate new key // Generate new key
var n = ecparams.getN(); var n = ecparams.getN();
@ -110,8 +110,16 @@ ECKey.prototype.multiply = function(key) {
return ECKey(this.priv.multiply(ECKey(key).priv),this.compressed) return ECKey(this.priv.multiply(ECKey(key).priv),this.compressed)
} }
var ECPubKey = function(input,compressed) { ECKey.prototype.sign = function(hash) {
if (!(this instanceof ECPubKey)) { return new ECPubKey(input,compressed); } return ecdsa.sign(hash, this.priv);
}
ECKey.prototype.verify = function(hash, sig) {
return this.getPub().verify(hash, sig)
}
var ECPubKey = function(input, compressed) {
if (!(this instanceof ECPubKey)) { return new ECPubKey(input, compressed); }
if (!input) { if (!input) {
// Generate new key // Generate new key
var n = ecparams.getN(); var n = ecparams.getN();
@ -178,18 +186,11 @@ ECPubKey.prototype.getAddress = function(version) {
return new Address(util.sha256ripe160(this.toBytes()), version); return new Address(util.sha256ripe160(this.toBytes()), version);
} }
ECKey.prototype.sign = function (hash) { ECPubKey.prototype.verify = function(hash, sig) {
return ecdsa.sign(hash, this.priv); return ecdsa.verify(hash, sig, this.toBytes())
}; }
ECKey.prototype.verify = function (hash, sig) {
return ecdsa.verify(hash, sig, this.getPub()['export']('bytes'));
};
/**
* Parse an exported private key contained in a string.
*/
module.exports = { module.exports = {
ECKey: ECKey, ECKey: ECKey,
ECPubKey: ECPubKey ECPubKey: ECPubKey
}; }

30
test/eckey.js
View file

@ -138,4 +138,34 @@ describe('ECKey', function() {
} }
}) })
}); });
describe('signing', function() {
var hpriv = 'ca48ec9783cf3ad0dfeff1fc254395a2e403cbbc666477b61b45e31d3b8ab458'
var hcpub = '024b12d9d7c77db68388b6ff7c89046174c871546436806bcd80d07c28ea811992'
var message = 'Vires in numeris'
it('should verify against the private key', function() {
var priv = new ECKey(hpriv)
var signature = priv.sign(message)
assert(priv.verify(message, signature))
})
it('should verify against the public key', function() {
var priv = new ECKey(hpriv)
var pub = new ECPubKey(hcpub, true)
var signature = priv.sign(message)
assert(pub.verify(message, signature))
})
it('should not verify against the wrong private key', function() {
var priv1 = new ECKey(hpriv)
var priv2 = new ECKey('1111111111111111111111111111111111111111111111111111111111111111')
var signature = priv1.sign(message)
assert(!priv2.verify(message, signature))
})
})
}) })