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Added function helper, few changes on ECRecover lib

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This commit is contained in:
AugustoL
2017-07-17 22:47:00 -03:00
committed by Francisco Giordano
parent f8c0fab5d8
commit 4f44427966
4 changed files with 22 additions and 888 deletions
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13
contracts/ECRecovery.sol
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@ -20,8 +20,9 @@ library ECRecovery {
uint8 v;
//Check the signature length
if (sig.length != 65)
if (sig.length != 65) {
return (address(0));
}
// Divide the signature in r, s and v variables
assembly {
@ -31,14 +32,16 @@ library ECRecovery {
}
// Version of signature should be 27 or 28, but 0 and 1 are also possible versions
if (v < 27)
v += 27;
if (v < 27) {
v += 27;
}
// If the version is correct return the signer address
if (v != 27 && v != 28)
if (v != 27 && v != 28) {
return (address(0));
else
} else {
return ecrecover(hash, v, r, s);
}
}
}