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add extra validation to prevent invalid public keys being used. (as per issue 39)

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This commit is contained in:
OutCast3k 2016-02-09 23:27:34 +00:00
parent c276998687
commit 27c9bff17e
1 changed files with 15 additions and 12 deletions
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3
js/coin.js
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@ -278,6 +278,7 @@
/* decompress an compressed public key */ /* decompress an compressed public key */
coinjs.pubkeydecompress = function(pubkey) { coinjs.pubkeydecompress = function(pubkey) {
if((typeof(pubkey) == 'string') && pubkey.match(/^[a-f0-9]+$/i)){
var curve = EllipticCurve.getSECCurveByName("secp256k1"); var curve = EllipticCurve.getSECCurveByName("secp256k1");
try { try {
var pt = curve.curve.decodePointHex(pubkey); var pt = curve.curve.decodePointHex(pubkey);
@ -293,6 +294,8 @@
return false; return false;
} }
} }
return false;
}
coinjs.testdeterministicK = function() { coinjs.testdeterministicK = function() {
// https://github.com/bitpay/bitcore/blob/9a5193d8e94b0bd5b8e7f00038e7c0b935405a03/test/crypto/ecdsa.js // https://github.com/bitpay/bitcore/blob/9a5193d8e94b0bd5b8e7f00038e7c0b935405a03/test/crypto/ecdsa.js