ecrecover return ethereum address

[Guti]

Qtum Hex Address = RIPEMD160( SHA256( PUBLIC KEY ))

Ethereum Address = KECCAK256( PUBLIC KEY ) and drop the first 12 bytes

When we use the precompiled "ecrecover" function in a smart contract we can not obtain the QTUM address with which we have signed.

cpp-eth-qtum/libethcore/Precompiled.cpp

Line 67 in 1a8e6a4

ret = dev::sha3(rec);

[qtum-neil]

Thanks for reporting this issue, we will include a fix in our next hardfork, meanwhile, a workaround would be to use a pure solidity contract that does the recovery.

[Guti]

Thank you. I am currently using the validateSignature function of the Secp256k1 library

Secp256k1.sol