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[CHORE] Update SJCL.

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Stefan Thomas
2014-03-20 17:22:10 -07:00
parent 11540f8cd9
commit 5f677a86a7
1 changed files with 18 additions and 0 deletions
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18
build/sjcl.js
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@@ -4043,6 +4043,24 @@ sjcl.ecc.ecdsa.publicKey.prototype = {
}
};
sjcl.ecc.ecdsa.secretKey.prototype.canonicalizeSignature = function(rs) {
var w = sjcl.bitArray,
R = this._curve.r,
l = R.bitLength();
var r = sjcl.bn.fromBits(w.bitSlice(rs,0,l)),
s = sjcl.bn.fromBits(w.bitSlice(rs,l,2*l));
// For a canonical signature we want the lower of two possible values for s
// 0 < s <= n/2
if (!R.copy().halveM().greaterEquals(s)) {
s = R.sub(s);
}
return w.concat(r.toBits(l), s.toBits(l));
};
sjcl.ecc.ecdsa.secretKey.prototype.signDER = function(hash, paranoia) {
return this.encodeDER(this.sign(hash, paranoia));
};