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crypto: avoid prefix escape to heap

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cuiweixie 2026-01-17 09:58:13 +08:00
parent 127d1f42bb
commit 5ccc85049e
1 changed files with 3 additions and 1 deletions
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4
crypto/crypto.go
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@ -48,6 +48,8 @@ var (
secp256k1halfN = new(big.Int).Div(secp256k1N, big.NewInt(2)) secp256k1halfN = new(big.Int).Div(secp256k1N, big.NewInt(2))
) )
var createAddress2Prefix = []byte{0xff}
var errInvalidPubkey = errors.New("invalid secp256k1 public key") var errInvalidPubkey = errors.New("invalid secp256k1 public key")
// EllipticCurve contains curve operations. // EllipticCurve contains curve operations.
@ -84,7 +86,7 @@ func CreateAddress(b common.Address, nonce uint64) common.Address {
// CreateAddress2 creates an ethereum address given the address bytes, initial // CreateAddress2 creates an ethereum address given the address bytes, initial
// contract code hash and a salt. // contract code hash and a salt.
func CreateAddress2(b common.Address, salt [32]byte, inithash []byte) common.Address { func CreateAddress2(b common.Address, salt [32]byte, inithash []byte) common.Address {
return common.BytesToAddress(Keccak256([]byte{0xff}, b.Bytes(), salt[:], inithash)[12:]) return common.BytesToAddress(Keccak256(createAddress2Prefix, b.Bytes(), salt[:], inithash)[12:])
} }
// ToECDSA creates a private key with the given D value. // ToECDSA creates a private key with the given D value.