crypto

package
v0.7.1-alpha1 Latest Latest
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 Go to latest Published: Jan 5, 2023 License: Apache-2.0 Imports: 20 Imported by: 9

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 added in v0.6.0 

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

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

func BytesToBLSPublicKey added in v0.6.0 

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

BytesToBLSPublicKey decodes given hex string and returns BLS Public Key

func BytesToBLSSecretKey added in v0.6.0 

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

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

func BytesToECDSAPrivateKey added in v0.6.0 

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 added in v0.6.0 

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

func GenerateAndEncodeECDSAPrivateKey added in v0.6.0 

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

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

func GenerateBLSKey added in v0.6.0 

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

GenerateBLSKey generates a new BLS key

func GenerateECDSAKey added in v0.6.0 

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 added in v0.3.0 

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 added in v0.8.0 

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 added in v0.6.0 

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 added in v0.6.0 

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 SigToPub 

func SigToPub(hash, sig []byte) (*ecdsa.PublicKey, error)

SigToPub returns the public key that created the given signature.

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 added in v0.6.0 

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

SignByBLS signs the given data by BLS

func UnmarshalBLSPublicKey added in v0.6.0 

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

UnmarshalBLSPublicKey unmarshal bytes data into BLS Public Key

func UnmarshalBLSSignature added in v0.6.0 

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

UnmarshalBLSSignature unmarshal bytes data into BLS Signature

func ValidateSignatureValues 

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

ValidateSignatureValues checks if the signature values are correct

func VerifyBLSSignature added in v0.6.0 

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 added in v0.6.0 

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) *EIP155Signer

NewEIP155Signer returns a new EIP155Signer object

func (*EIP155Signer) CalculateV 

func (e *EIP155Signer) CalculateV(parity byte) []byte

calculateV returns the V value for transaction signatures. Based on EIP155

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 {
}

func (*FrontierSigner) CalculateV 

func (f *FrontierSigner) CalculateV(parity byte) []byte

calculateV returns the V value for transactions pre EIP155

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 added in v0.8.0 

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 added in v0.8.0 

func NewKeccakState() KeccakState

NewKeccakState creates a new KeccakState

type KeyType added in v0.6.0 

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

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)

	// CalculateV calculates the V value based on the type of signer used
	CalculateV(parity byte) []byte
}

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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