chuwt / chia-bls-go

chia-bls-signature in go, chia bls 签名工具go实现

chia-bls-go

• go版本chia签名, 参考python-impl实现部分功能，并非bls的完全实现

Bug fix

• 2024/01/18 Thanks for the code from coolaj86, a bug for checking length of pks on coreAggregateVerify was fixed!

• 2023/07/08 Thanks for the report from goomario, a bug was fixed!

  • This bug was caused by the wrong use of big.Int.Bytes(), it should be replaced with big.Int.FillBytes()

主要功能

• 生成私钥
  • 助记词
  • seed
  • hexString
  • bytes
• 签名
• 验签
• 多签
• 多签验证

安装说明

go get github.com/chuwt/chia-bls-go

使用说明

加载私钥

1. 助记词加载

func KeyGenWithMnemonic(mnemonic, password string) PrivateKey

2. hex string加载

func KeyFromHexString(key string) (PrivateKey, error)

3. bytes加载

func KeyFromHexString(key string) (PrivateKey, error)

私钥

1. 生成bytes

func (key PrivateKey) Bytes() []byte

2. 生成hex string

func (key PrivateKey) Hex() string

3. 派生farmerSk

func (key PrivateKey) FarmerSk() PrivateKey

4. 派生poolSk

func (key PrivateKey) PoolSk() PrivateKey 

5. 派生walletSk

func (key PrivateKey) WalletSk(index int) PrivateKey

6. 派生localSk

func (key PrivateKey) LocalSk() PrivateKey

7. 生成SyntheticSk

func (key PrivateKey) SyntheticSk(hiddenPuzzleHash []byte) PrivateKey

8. 生成公钥

func (key PrivateKey) GetPublicKey() PublicKey

公钥

1. 生成指纹(fingerprint)

func (key PublicKey) FingerPrint() string

2. 生成bytes

func (key PublicKey) Bytes() []byte

3. 生成hex string

func (key PublicKey) Hex() string

签名

1. 签名

func (asm *AugSchemeMPL) Sign(sk PrivateKey, message []byte)

2. 验证

func (asm *AugSchemeMPL) Verify(pk PublicKey, message []byte, sig []byte) bool

3. 多签

// 将多个签名联合在一起
func (asm *AugSchemeMPL) Aggregate(signatures ...[]byte) ([]byte, error)

4. 多签验证

// 公钥数组，原始信息数组，多签返回的数据
func (asm *AugSchemeMPL) AggregateVerify(pks [][]byte, messages [][]byte, sig []byte) bool

5. 前置公钥签名

// 前置公钥签名
SignWithPrependPK(sk PrivateKey, prependPK PublicKey, message []byte)

chia-bls-go's Issues

security: len(pubkey) should match len(messages), or fail

- if pksLen != len(messages) && pksLen < 1 {
+ if pksLen != len(messages) || pksLen == 0 { 

chia-bls-go/aug_scheme_mpl.go

Lines 96 to 99 in f0bd081

	if pksLen != len(messages) && pksLen < 1 {
	return false
	}

Wrapper around C++ BLS

Hi guys!

first of all, really good idea to create a Go port of the BLS Chia lib, this could open further possibilities Go side.

Why did you decide to do a complete port (I understand a native Go implementation was missing) instead of using CGO/SWIG and create an interface to the offcial C++ BLS lib?
This could avoid the need for code updates to be on par with the official lib and also use all the speedups due to GMP.

I would also suggest to keep the same naming convention as the official lib, for example using G1Element/G2Element

有一些chia的交易问题

1、如何组成一个转账交易

你这个可以直接用于转帐吗

Farmer key miss match

TestCase:

func TestSignature(t *testing.T) {
	var seed [64]byte
	for i := 0; i < 100; i++ {
		_, _ = rand.Read(seed[:])

		// blsgo
		blsgoPrivateKey := blsgo.KeyGen(seed[:])
		blsgoFarmerPrivateKey := blsgoPrivateKey.FarmerSk()
		blsgoFarmerPrivateKeyBytes := blsgoFarmerPrivateKey.Bytes()

		// chia bls with cgo
		blsPrivateKey, _ := bls.GenerateKeyFromSeed(seed[:])
		blsFarmerPrivateKey := blsPrivateKey.DeriveChild([]int{12381, 8444, 0, 0})
		blsFarmerPrivateKeyBytes, _ := blsFarmerPrivateKey.MarshalBinary()

		if bytes.Compare(blsgoFarmerPrivateKeyBytes, blsFarmerPrivateKeyBytes) != 0 {
			t.Errorf("Bad farmer key: i=%d seed=%s blsgo=%s chia-bls=%s", i, hex.EncodeToString(seed[:]),
				hex.EncodeToString(blsgoFarmerPrivateKeyBytes),
				hex.EncodeToString(blsFarmerPrivateKeyBytes))
		}
	}
}

Output:

=== RUN   TestSignature
    service_test.go:142: Bad farmer key: i=23 seed=53f830604c1432a737b18b8f8d94fe897e735cba0fcd3f2cf0212973a521f84bf9ed8bb739012d6811c81d0c4dff726642225dcb8e63d4bdf02341a5fa5c1101 blsgo=090ccc11e11032e691f1c0671c8aa43b2fc6fef7b6e0101ffb289e2cce9bf422 chia-bls=3cd15ca01d255815a8dc24a6b3344761c3578b4d2b325aced906a65072f4f612
    service_test.go:142: Bad farmer key: i=35 seed=9ad7c719f59d794bb8527dcafa4a17243df11b12e1b077ad39d60cd4d0409432d13ba749d6932792b218b28a361a545cf5aa174e3d236039193f603eaa128dd6 blsgo=0433e87b7c5ea124b0ebe1cbb7d96c7fbf59aa49b2d891f50d99f517b82ab97d chia-bls=5479365fdd776bff9e8daa9ea79c58a1b8af08b907c733c81b9cfd3f43fbd31c
    service_test.go:142: Bad farmer key: i=70 seed=2d59eab383318d51a26290cb78cbcdc9941c21e175d446779025ddb20643da99b87dfcc14e012ba2029e5574bcc1e71344172c18810db086696ba0593b0c8500 blsgo=67d2819d00db4bc1d14a3cf7e131b3b1f4085f10bbcea53f225e9b9c6f9b1454 chia-bls=66c9a4109557cfe20199565e5138ceecdea77a5db8b1eb88cb1169ba5367edb5
    service_test.go:142: Bad farmer key: i=75 seed=eb0dcf3c89de963b4f047dd85f79212b0dbf269d73deae5ab3d043f815778394d6ac9ff01526127520d35916eed90aada0f4f05b50c17a1648a141f79b5d495b blsgo=3645c8df7e38d12464eca7f7f9711edc538d91aa8545d42c8c01d6848856105e chia-bls=05a891a033d8b47931bed5594eadf754e7d751fa15ddbd27bcd2b7c8283616d4
    service_test.go:142: Bad farmer key: i=79 seed=a83903c9c2acef4c279c98faaa2d6656f146139c2a0b0839e36a0304f6f2755c19f27575e3a5342f88f5a255290112c152b97032df5af5d1e3c6235f4e42fb39 blsgo=17721e215429eaf5657cea3b2ccb1b968df1c9475739c8a275216898a8abda7d chia-bls=666bf79655c82de816fa22781d0cce550b03820b4e6641f7938466577aa5700c
--- FAIL: TestSignature (1.12s)