LBRYCommunity/coinbin
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

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

Browse source
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
Show stats Download patch file Download diff file Expand all files Collapse all files

27
js/coin.js
View file

@ -278,20 +278,23 @@
/* decompress an compressed public key */
coinjs.pubkeydecompress = function(pubkey) {
var curve = EllipticCurve.getSECCurveByName("secp256k1");
try {
var pt = curve.curve.decodePointHex(pubkey);
var x = pt.getX().toBigInteger();
var y = pt.getY().toBigInteger();
if((typeof(pubkey) == 'string') && pubkey.match(/^[a-f0-9]+$/i)){
var curve = EllipticCurve.getSECCurveByName("secp256k1");
try {
var pt = curve.curve.decodePointHex(pubkey);
var x = pt.getX().toBigInteger();
var y = pt.getY().toBigInteger();
var publicKeyBytes = EllipticCurve.integerToBytes(x, 32);
publicKeyBytes = publicKeyBytes.concat(EllipticCurve.integerToBytes(y,32));
publicKeyBytes.unshift(0x04);
return Crypto.util.bytesToHex(publicKeyBytes);
} catch (e) {
// console.log(e);
return false;
var publicKeyBytes = EllipticCurve.integerToBytes(x, 32);
publicKeyBytes = publicKeyBytes.concat(EllipticCurve.integerToBytes(y,32));
publicKeyBytes.unshift(0x04);
return Crypto.util.bytesToHex(publicKeyBytes);
} catch (e) {
// console.log(e);
return false;
}
}
return false;
}
coinjs.testdeterministicK = function() {