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crypto: change formula for create2 (#17393)

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This commit is contained in:
gary rong
2018-08-14 23:30:42 +08:00
committed by Péter Szilágyi
parent 97887d98da
commit e0e0e53401
2 changed files with 3 additions and 3 deletions
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2
core/vm/evm.go
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@@ -427,7 +427,7 @@ func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.I
// Create2 creates a new contract using code as deployment code.
//
// The different between Create2 with Create is Create2 uses sha3(msg.sender ++ salt ++ init_code)[12:]
// The different between Create2 with Create is Create2 uses sha3(0xff ++ msg.sender ++ salt ++ sha3(init_code))[12:]
// instead of the usual sender-and-nonce-hash as the address where the contract is initialized at.
func (evm *EVM) Create2(caller ContractRef, code []byte, gas uint64, endowment *big.Int, salt *big.Int) (ret []byte, contractAddr common.Address, leftOverGas uint64, err error) {
contractAddr = crypto.CreateAddress2(caller.Address(), common.BigToHash(salt), code)

4
crypto/crypto.go
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@@ -78,8 +78,8 @@ func CreateAddress(b common.Address, nonce uint64) common.Address {
// CreateAddress2 creates an ethereum address given the address bytes, initial
// contract code and a salt.
func CreateAddress2(b common.Address, salt common.Hash, code []byte) common.Address {
return common.BytesToAddress(Keccak256([]byte{0xff}, b.Bytes(), salt.Bytes(), code)[12:])
func CreateAddress2(b common.Address, salt [32]byte, code []byte) common.Address {
return common.BytesToAddress(Keccak256([]byte{0xff}, b.Bytes(), salt[:], Keccak256(code))[12:])
}
// ToECDSA creates a private key with the given D value.