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ecdsa: use signum() over compareTo

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This commit is contained in:
Daniel Cousens 2014-05-24 14:33:02 +10:00
parent 37d5147cac
commit bd1a08bfa1
1 changed files with 3 additions and 2 deletions
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5
src/ecdsa.js
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@ -64,15 +64,16 @@ function verifyRaw(ecparams, e, r, s, Q) {
var n = ecparams.getN()
var G = ecparams.getG()
if (r.compareTo(BigInteger.ONE) < 0 || r.compareTo(n) >= 0) {
if (r.signum() === 0 || r.compareTo(n) >= 0) {
return false
}
if (s.compareTo(BigInteger.ONE) < 0 || s.compareTo(n) >= 0) {
if (s.signum() === 0 || s.compareTo(n) >= 0) {
return false
}
var c = s.modInverse(n)
var u1 = e.multiply(c).mod(n)
var u2 = r.multiply(c).mod(n)