TrueCloudLab/neo-go
8
0
Fork 0
mirror of https://github.com/nspcc-dev/neo-go.git synced 2025-05-05 13:06:20 +00:00
Code Issues Projects Releases Packages Wiki Activity

native: extend CryptoLib's verifyWithECDsa with hasher parameter

Browse source 
Replace native CryptoLib's verifyWithECDsa `curve` parameter by
`curveHash` parameter which is a enum over supported pairs of named
curves and hash functions.

Even though this change is a compatible extension of the protocol, it
changes the genesis state due to parameter renaming. But we're going to
resync chain in 3.7 release anyway, so it's not a big deal.

Also, we need to check mainnet and testnet compatibility in case if
anyone has ever called verifyWithECDsa with 24 or 25 `curve` value.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
This commit is contained in:
Anna Shaleva 2024-05-01 15:44:14 +03:00
parent 7995229f6b
commit 34eef47a18
7 changed files with 119 additions and 75 deletions
Download patch file Download diff file Expand all files Collapse all files

16
pkg/interop/native/crypto/crypto.go
View file

@ -13,13 +13,15 @@ import (
// Hash represents CryptoLib contract hash.
const Hash = "\x1b\xf5\x75\xab\x11\x89\x68\x84\x13\x61\x0a\x35\xa1\x28\x86\xcd\xe0\xb6\x6c\x72"
// NamedCurve represents a named elliptic curve.
type NamedCurve byte
// NamedCurveHash represents a pair of named elliptic curve and hash function.
type NamedCurveHash byte
// Various named elliptic curves.
// Various pairs of named elliptic curves and hash functions.
const (
Secp256k1 NamedCurve = 22
Secp256r1 NamedCurve = 23
Secp256k1Sha256 NamedCurveHash = 22
Secp256r1Sha256 NamedCurveHash = 23
Secp256k1Keccak256 NamedCurveHash = 24
Secp256r1Keccak256 NamedCurveHash = 25
)
// Sha256 calls `sha256` method of native CryptoLib contract and computes SHA256 hash of b.
@ -40,8 +42,8 @@ func Murmur32(b []byte, seed int) []byte {
// VerifyWithECDsa calls `verifyWithECDsa` method of native CryptoLib contract and checks that sig is
// a correct msg's signature for the given pub (serialized public key on the given curve).
func VerifyWithECDsa(msg []byte, pub interop.PublicKey, sig interop.Signature, curve NamedCurve) bool {
return neogointernal.CallWithToken(Hash, "verifyWithECDsa", int(contract.NoneFlag), msg, pub, sig, curve).(bool)
func VerifyWithECDsa(msg []byte, pub interop.PublicKey, sig interop.Signature, curveHash NamedCurveHash) bool {
return neogointernal.CallWithToken(Hash, "verifyWithECDsa", int(contract.NoneFlag), msg, pub, sig, curveHash).(bool)
}
// Bls12381Point represents BLS12-381 curve point (G1 or G2 in the Affine or