diff options
| -rw-r--r-- | ethcrypto/crypto.go | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/ethcrypto/crypto.go b/ethcrypto/crypto.go index 1f500f2db..624c5169f 100644 --- a/ethcrypto/crypto.go +++ b/ethcrypto/crypto.go @@ -2,10 +2,16 @@ package ethcrypto import ( //"code.google.com/p/go.crypto/sha3" + "crypto/sha256" + + "code.google.com/p/go.crypto/ripemd160" "github.com/ethereum/eth-go/ethutil" "github.com/obscuren/sha3" + + "github.com/obscuren/secp256k1-go" ) +// TODO refactor, remove (bin) func Sha3Bin(data []byte) []byte { d := sha3.NewKeccak256() d.Write(data) @@ -17,3 +23,27 @@ func Sha3Bin(data []byte) []byte { func CreateAddress(b []byte, nonce uint64) []byte { return Sha3Bin(ethutil.NewValue([]interface{}{b, nonce}).Encode())[12:] } + +func Sha256(data []byte) []byte { + hash := sha256.Sum256(data) + + return hash[:] +} + +func Ripemd160(data []byte) []byte { + ripemd := ripemd160.New() + ripemd.Write(data) + + return ripemd.Sum(nil) +} + +func Ecrecover(data []byte) []byte { + var in = struct { + hash []byte + sig []byte + }{data[:32], data[32:]} + + r, _ := secp256k1.RecoverPubkey(in.hash, in.sig) + + return r +} |