crypto

package
v0.0.0-...-f672fcd Latest Latest
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 Go to latest Published: Jan 28, 2024 License: Apache-2.0 Imports: 19 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrInvalidBLSSignature = errors.New("invalid BLS Signature")
)
View Source 
var S256 = btcec.S256()

S256 is the secp256k1 elliptic curve

Functions

func BLSSecretKeyToPubkeyBytes 

func BLSSecretKeyToPubkeyBytes(key *bls_sig.SecretKey) ([]byte, error)

BLSSecretKeyToPubkeyBytes returns bytes of BLS Public Key corresponding to the given secret key

func BytesToBLSPublicKey 

func BytesToBLSPublicKey(input string) (*bls_sig.PublicKey, error)

BytesToBLSPublicKey decodes given hex string and returns BLS Public Key

func BytesToBLSSecretKey 

func BytesToBLSSecretKey(input []byte) (*bls_sig.SecretKey, error)

BytesToECDSAPrivateKey reads the input byte array and constructs a private key if possible

func BytesToECDSAPrivateKey 

func BytesToECDSAPrivateKey(input []byte) (*ecdsa.PrivateKey, error)

BytesToECDSAPrivateKey reads the input byte array and constructs a private key if possible

func CreateAddress 

func CreateAddress(addr types.Address, nonce uint64) types.Address

CreateAddress creates an Ethereum address.

func CreateAddress2 

func CreateAddress2(addr types.Address, salt [32]byte, inithash []byte) types.Address

CreateAddress2 creates an Ethereum address following the CREATE2 Opcode.

func Ecrecover 

func Ecrecover(hash, sig []byte) ([]byte, error)

func GenerateAndEncodeBLSSecretKey 

func GenerateAndEncodeBLSSecretKey() (*bls_sig.SecretKey, []byte, error)

func GenerateAndEncodeECDSAPrivateKey 

func GenerateAndEncodeECDSAPrivateKey() (*ecdsa.PrivateKey, []byte, error)

GenerateAndEncodeECDSAPrivateKey returns a newly generated private key and the Base64 encoding of that private key

func GenerateBLSKey 

func GenerateBLSKey() (*bls_sig.SecretKey, error)

GenerateBLSKey generates a new BLS key

func GenerateECDSAKey 

func GenerateECDSAKey() (*ecdsa.PrivateKey, error)

GenerateECDSAKey generates a new key based on the secp256k1 elliptic curve.

func GenerateOrReadPrivateKey 

func GenerateOrReadPrivateKey(path string) (*ecdsa.PrivateKey, error)

GenerateOrReadPrivateKey generates a private key at the specified path, or reads it if a key file is present

func GetAddressFromKey 

func GetAddressFromKey(key goCrypto.PrivateKey) (types.Address, error)

GetAddressFromKey extracts an address from the private key

func Keccak256 

func Keccak256(v ...[]byte) []byte

Keccak256 calculates the Keccak256

func Keccak256Hash 

func Keccak256Hash(v ...[]byte) (hash types.Hash)

Keccak256Hash calculates and returns the Keccak256 hash of the input data, converting it to an internal Hash data structure.

func MarshalECDSAPrivateKey 

func MarshalECDSAPrivateKey(priv *ecdsa.PrivateKey) ([]byte, error)

MarshalECDSAPrivateKey serializes the private key's D value to a []byte

func MarshalPublicKey 

func MarshalPublicKey(pub *ecdsa.PublicKey) []byte

MarshalPublicKey marshals a public key on the secp256k1 elliptic curve.

func ParseECDSAPrivateKey 

func ParseECDSAPrivateKey(buf []byte) (*ecdsa.PrivateKey, error)

func ParsePublicKey 

func ParsePublicKey(buf []byte) (*ecdsa.PublicKey, error)

ParsePublicKey parses bytes into a public key on the secp256k1 elliptic curve.

func PubKeyToAddress 

func PubKeyToAddress(pub *ecdsa.PublicKey) types.Address

PubKeyToAddress returns the Ethereum address of a public key

func ReadConsensusKey 

func ReadConsensusKey(manager secrets.SecretsManager) (*ecdsa.PrivateKey, error)

func RecoverPubkey 

func RecoverPubkey(signature, hash []byte) (*ecdsa.PublicKey, error)

RecoverPubkey verifies the compact signature "signature" of "hash" for the secp256k1 curve.

func Sign 

func Sign(priv *ecdsa.PrivateKey, hash []byte) ([]byte, error)

Sign produces a compact signature of the data in hash with the given private key on the secp256k1 curve.

func SignByBLS 

func SignByBLS(prv *bls_sig.SecretKey, msg []byte) ([]byte, error)

SignByBLS signs the given data by BLS

func UnmarshalBLSPublicKey 

func UnmarshalBLSPublicKey(input []byte) (*bls_sig.PublicKey, error)

UnmarshalBLSPublicKey unmarshal bytes data into BLS Public Key

func UnmarshalBLSSignature 

func UnmarshalBLSSignature(input []byte) (*bls_sig.Signature, error)

UnmarshalBLSSignature unmarshal bytes data into BLS Signature

func ValidateSignatureValues 

func ValidateSignatureValues(v, r, s *big.Int, isHomestead bool) bool

ValidateSignatureValues checks if the signature values are correct

func VerifyBLSSignature 

func VerifyBLSSignature(pubkey *bls_sig.PublicKey, sig *bls_sig.Signature, message []byte) error

VerifyBLSSignature verifies the given signature from Public Key and original message

func VerifyBLSSignatureFromBytes 

func VerifyBLSSignatureFromBytes(rawPubkey, rawSig, message []byte) error

VerifyBLSSignatureFromBytes verifies BLS Signature from BLS PublicKey, signature, and original message in bytes

Types

type EIP155Signer 

type EIP155Signer struct {
	// contains filtered or unexported fields
}

func NewEIP155Signer 

func NewEIP155Signer(chainID uint64, isHomestead bool) *EIP155Signer

NewEIP155Signer returns a new EIP155Signer object

func (*EIP155Signer) Hash 

func (e *EIP155Signer) Hash(tx *types.Transaction) types.Hash

Hash is a wrapper function that calls calcTxHash with the EIP155Signer's chainID

func (*EIP155Signer) Sender 

func (e *EIP155Signer) Sender(tx *types.Transaction) (types.Address, error)

Sender returns the transaction sender

func (*EIP155Signer) SignTx 

func (e *EIP155Signer) SignTx(
	tx *types.Transaction,
	privateKey *ecdsa.PrivateKey,
) (*types.Transaction, error)

SignTx signs the transaction using the passed in private key

type FrontierSigner 

type FrontierSigner struct {
	// contains filtered or unexported fields
}

FrontierSigner implements tx signer interface

func NewFrontierSigner 

func NewFrontierSigner(isHomestead bool) *FrontierSigner

NewFrontierSigner is the constructor of FrontierSigner

func (*FrontierSigner) Hash 

func (f *FrontierSigner) Hash(tx *types.Transaction) types.Hash

Hash is a wrapper function for the calcTxHash, with chainID 0

func (*FrontierSigner) Sender 

func (f *FrontierSigner) Sender(tx *types.Transaction) (types.Address, error)

Sender decodes the signature and returns the sender of the transaction

func (*FrontierSigner) SignTx 

func (f *FrontierSigner) SignTx(
	tx *types.Transaction,
	privateKey *ecdsa.PrivateKey,
) (*types.Transaction, error)

SignTx signs the transaction using the passed in private key

type KeccakState 

type KeccakState interface {
	hash.Hash
	Read([]byte) (int, error)
}

KeccakState wraps sha3.state. In addition to the usual hash methods, it also supports Read to get a variable amount of data from the hash state. Read is faster than Sum because it doesn't copy the internal state, but also modifies the internal state.

func NewKeccakState 

func NewKeccakState() KeccakState

NewKeccakState creates a new KeccakState

type KeyType 

type KeyType string
const (
	KeyECDSA KeyType = "ecdsa"
	KeyBLS   KeyType = "bls"
)

type LondonSigner 

type LondonSigner struct {
	// contains filtered or unexported fields
}

LondonSigner implements signer for EIP-1559

func NewLondonSigner 

func NewLondonSigner(chainID uint64, isHomestead bool, fallbackSigner TxSigner) *LondonSigner

NewLondonSigner returns a new LondonSigner object

func (*LondonSigner) Hash 

func (e *LondonSigner) Hash(tx *types.Transaction) types.Hash

Hash is a wrapper function that calls calcTxHash with the LondonSigner's fields

func (*LondonSigner) Sender 

func (e *LondonSigner) Sender(tx *types.Transaction) (types.Address, error)

Sender returns the transaction sender

func (*LondonSigner) SignTx 

func (e *LondonSigner) SignTx(tx *types.Transaction, pk *ecdsa.PrivateKey) (*types.Transaction, error)

SignTx signs the transaction using the passed in private key

type TxSigner 

type TxSigner interface {
	// Hash returns the hash of the transaction
	Hash(tx *types.Transaction) types.Hash

	// Sender returns the sender of the transaction
	Sender(tx *types.Transaction) (types.Address, error)

	// SignTx signs a transaction
	SignTx(tx *types.Transaction, priv *ecdsa.PrivateKey) (*types.Transaction, error)
}

TxSigner is a utility interface used to recover data from a transaction

func NewSigner 

func NewSigner(forks chain.ForksInTime, chainID uint64) TxSigner

NewSigner creates a new signer object (EIP155 or FrontierSigner)

Source Files

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