feat: added bls

This commit is contained in:
Mikhail Wall 2024-12-24 20:26:27 +05:00
parent c7d747e52b
commit b1020ccd07
4 changed files with 41 additions and 7 deletions

View file

@ -25,6 +25,7 @@ import (
"math"
"math/big"
"github.com/cloudflare/circl/sign/bls"
"github.com/consensys/gnark-crypto/ecc"
bls12381 "github.com/consensys/gnark-crypto/ecc/bls12-381"
"github.com/consensys/gnark-crypto/ecc/bls12-381/fp"
@ -98,6 +99,9 @@ var PrecompiledContractsBerlin = PrecompiledContracts{
common.BytesToAddress([]byte{0x7}): &bn256ScalarMulIstanbul{},
common.BytesToAddress([]byte{0x8}): &bn256PairingIstanbul{},
common.BytesToAddress([]byte{0x9}): &blake2F{},
// primev pre-compiles start at 0xf addresses
common.BytesToAddress([]byte{0xf0}): &bls12381SignatureVerification{},
}
// PrecompiledContractsCancun contains the default set of pre-compiled Ethereum
@ -225,12 +229,9 @@ func RunPrecompiledContract(p PrecompiledContract, input []byte, suppliedGas uin
if suppliedGas < gasCost {
return nil, 0, ErrOutOfGas
}
if logger != nil && logger.OnGasChange != nil {
logger.OnGasChange(suppliedGas, suppliedGas-gasCost, tracing.GasChangeCallPrecompiledContract)
}
suppliedGas -= gasCost
gasLeft := suppliedGas - gasCost
output, err := p.Run(input)
return output, suppliedGas, err
return output, gasLeft, err
}
// ecrecover implemented as a native contract.
@ -714,6 +715,34 @@ var (
errBLS12381G2PointSubgroup = errors.New("g2 point is not on correct subgroup")
)
// bls12381SignatureVerification implements BLS signature verification precompile.
type bls12381SignatureVerification struct{}
// RequiredGas returns the gas required to execute the pre-compiled contract.
func (c *bls12381SignatureVerification) RequiredGas(input []byte) uint64 {
return params.BlsSignVerifyGas
}
func (c *bls12381SignatureVerification) Run(input []byte) ([]byte, error) {
// Input format:
// - pubkey (48 bytes) - G1 point
// - message (32 bytes) - Hash of the message
// - signature (96 bytes) - G2 point
if len(input) != 176 {
return nil, errBLS12381InvalidInputLength
}
var pubKey bls.PublicKey[bls.G1]
if err := pubKey.UnmarshalBinary(input[:48]); err != nil {
return nil, err
}
if !bls.Verify(&pubKey, input[48:80], input[80:]) {
return nil, nil
}
return input[:48], nil
}
// bls12381G1Add implements EIP-2537 G1Add precompile.
type bls12381G1Add struct{}

5
go.mod
View file

@ -1,8 +1,8 @@
module github.com/ethereum/go-ethereum
go 1.22
go 1.22.0
toolchain go1.22.0
toolchain go1.23.0
require (
github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.2.0
@ -93,6 +93,7 @@ require (
github.com/beorn7/perks v1.0.1 // indirect
github.com/bits-and-blooms/bitset v1.17.0 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/cloudflare/circl v1.5.0
github.com/cockroachdb/errors v1.11.3 // indirect
github.com/cockroachdb/fifo v0.0.0-20240606204812-0bbfbd93a7ce // indirect
github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect

2
go.sum
View file

@ -107,6 +107,8 @@ github.com/chzyer/readline v1.5.0/go.mod h1:x22KAscuvRqlLoK9CsoYsmxoXZMMFVyOl86c
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/chzyer/test v0.0.0-20210722231415-061457976a23/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cloudflare/circl v1.5.0 h1:hxIWksrX6XN5a1L2TI/h53AGPhNHoUBo+TD1ms9+pys=
github.com/cloudflare/circl v1.5.0/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
github.com/cloudflare/cloudflare-go v0.79.0 h1:ErwCYDjFCYppDJlDJ/5WhsSmzegAUe2+K9qgFyQDg3M=
github.com/cloudflare/cloudflare-go v0.79.0/go.mod h1:gkHQf9xEubaQPEuerBuoinR9P8bf8a05Lq0X6WKy1Oc=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=

View file

@ -161,6 +161,8 @@ const (
Bls12381MapG1Gas uint64 = 5500 // Gas price for BLS12-381 mapping field element to G1 operation
Bls12381MapG2Gas uint64 = 75000 // Gas price for BLS12-381 mapping field element to G2 operation
BlsSignVerifyGas uint64 = 150000 // Gas price for BLS12-381 signature verification
// The Refund Quotient is the cap on how much of the used gas can be refunded. Before EIP-3529,
// up to half the consumed gas could be refunded. Redefined as 1/5th in EIP-3529
RefundQuotient uint64 = 2