48 lines
875 B
Go
48 lines
875 B
Go
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package crypto
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import (
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"crypto/sha256"
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"code.google.com/p/go.crypto/ripemd160"
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/obscuren/secp256k1-go"
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"github.com/obscuren/sha3"
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)
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// TODO refactor, remove (bin)
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func Sha3(data []byte) []byte {
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d := sha3.NewKeccak256()
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d.Write(data)
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return d.Sum(nil)
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}
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// Creates an ethereum address given the bytes and the nonce
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func CreateAddress(b []byte, nonce uint64) []byte {
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return Sha3(ethutil.NewValue([]interface{}{b, nonce}).Encode())[12:]
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}
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func Sha256(data []byte) []byte {
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hash := sha256.Sum256(data)
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return hash[:]
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}
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func Ripemd160(data []byte) []byte {
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ripemd := ripemd160.New()
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ripemd.Write(data)
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return ripemd.Sum(nil)
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}
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func Ecrecover(data []byte) []byte {
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var in = struct {
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hash []byte
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sig []byte
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}{data[:32], data[32:]}
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r, _ := secp256k1.RecoverPubkey(in.hash, in.sig)
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return r
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}
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