crypto

package
v1.5.0 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: May 6, 2020 License: Apache-2.0, Apache-2.0, Apache-2.0 Imports: 21 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	PrivKeyLenEd25519   = 64
	PrivKeyLenSecp256k1 = 32
)
View Source 
const (
	PrivKeyTypeEd25519   = byte(0x01)
	PrivKeyTypeSecp256k1 = byte(0x02)
)

Types of PrivKey implementations

View Source 
const (
	PubKeyLenEd25519   = 32
	PubKeyLenSecp256k1 = 64
)
View Source 
const (
	PubKeyTypeEd25519   = byte(0x01)
	PubKeyTypeSecp256k1 = byte(0x02)
)

Types of PubKey implementations

View Source 
const (
	SignatureTypeEd25519   = byte(0x01)
	SignatureTypeSecp256k1 = byte(0x02)
)

Types of Signature implementations

View Source 
const (
	// A series of combination of ciphers
	// ZA includes ed25519,ecdsa,ripemd160,keccak256,secretbox
	CryptoTypeZhongAn = "ZA"
)
View Source 
const (
	SignKeyLenEd25519 = 64
)

Variables

View Source 
var (
	CryptoType = CryptoTypeZhongAn
)

Functions

func CRandBytes 

func CRandBytes(numBytes int) []byte

This uses the OS and the Seed(s).

func CRandHex 

func CRandHex(numDigits int) string

RandHex(24) gives 96 bits of randomness, strong enough for most purposes.

func CReader 

func CReader() io.Reader

Returns a crand.Reader mixed with user-supplied entropy

func DecodeArmor 

func DecodeArmor(armorStr string) (blockType string, headers map[string]string, data []byte, err error)

func DecryptSymmetric 

func DecryptSymmetric(ciphertext []byte, secret []byte) (plaintext []byte, err error)

secret must be 32 bytes long. Use something like Sha256(Bcrypt(passphrase)) The ciphertext is (secretbox.Overhead + 24) bytes longer than the plaintext.

func EncodeArmor 

func EncodeArmor(blockType string, headers map[string]string, data []byte) string

func EncryptSymmetric 

func EncryptSymmetric(plaintext []byte, secret []byte) (ciphertext []byte)

secret must be 32 bytes long. Use something like Sha256(Bcrypt(passphrase)) The ciphertext is (secretbox.Overhead + 24) bytes longer than the plaintext. NOTE: call crypto.MixEntropy() first.

func GetNodeCryptoType 

func GetNodeCryptoType() string

func GetNodePrivKeyBytes 

func GetNodePrivKeyBytes(pkey PrivKey) []byte

func GetNodePubkeyBytes 

func GetNodePubkeyBytes(pkey PubKey) []byte

func GetNodeSigBytes 

func GetNodeSigBytes(sig Signature) []byte

func MixEntropy 

func MixEntropy(seedBytes []byte)

Mix additional bytes of randomness, e.g. from hardware, user-input, etc. It is OK to call it multiple times. It does not diminish security.

func NodeInit 

func NodeInit(crypto string)

func NodePubkeyLen 

func NodePubkeyLen() int

--------------------------------------------------

func PaddedBigBytes 

func PaddedBigBytes(bi *big.Int, buf []byte)

func Ripemd160 

func Ripemd160(bytes []byte) []byte

func Sha256 

func Sha256(bytes []byte) []byte

Types

type PrivKey 

type PrivKey interface {
	Bytes() []byte
	Sign(msg []byte) Signature
	PubKey() PubKey
	Equals(PrivKey) bool
	KeyString() string
}

PrivKey is part of PrivAccount and state.PrivValidator.

func GenNodePrivKey 

func GenNodePrivKey() PrivKey

func GenPrivkeyByBytes 

func GenPrivkeyByBytes(cryptoType string, data []byte) (PrivKey, error)

func GenPrivkeyByType 

func GenPrivkeyByType(cryptoType string) (PrivKey, error)

func PrivKeyFromBytes 

func PrivKeyFromBytes(privKeyBytes []byte) (privKey PrivKey, err error)

func SetNodePrivKey 

func SetNodePrivKey(data []byte) PrivKey

type PrivKeyEd25519 

type PrivKeyEd25519 [PrivKeyLenEd25519]byte

Implements PrivKey

func GenPrivKeyEd25519 

func GenPrivKeyEd25519() PrivKeyEd25519

func GenPrivKeyEd25519FromSecret 

func GenPrivKeyEd25519FromSecret(secret []byte) PrivKeyEd25519

NOTE: secret should be the output of a KDF like bcrypt, if it's derived from user input.

func (PrivKeyEd25519) Bytes 

func (privKey PrivKeyEd25519) Bytes() []byte

func (PrivKeyEd25519) Equals 

func (privKey PrivKeyEd25519) Equals(other PrivKey) bool

func (PrivKeyEd25519) Generate 

func (privKey PrivKeyEd25519) Generate(index int) PrivKeyEd25519

Deterministically generates new priv-key bytes from key.

func (PrivKeyEd25519) KeyString 

func (privKey PrivKeyEd25519) KeyString() string

func (PrivKeyEd25519) PubKey 

func (privKey PrivKeyEd25519) PubKey() PubKey

func (PrivKeyEd25519) Sign 

func (privKey PrivKeyEd25519) Sign(msg []byte) Signature

func (PrivKeyEd25519) String 

func (privKey PrivKeyEd25519) String() string

func (PrivKeyEd25519) ToCurve25519 

func (privKey PrivKeyEd25519) ToCurve25519() *[32]byte

type PrivKeySecp256k1 

type PrivKeySecp256k1 [PrivKeyLenSecp256k1]byte

PrivKeySecp256k1 Implements PrivKey

func GenPrivKeySecp256k1 

func GenPrivKeySecp256k1() PrivKeySecp256k1

func GenPrivKeySecp256k1FromSecret 

func GenPrivKeySecp256k1FromSecret(secret []byte) PrivKeySecp256k1

NOTE: secret should be the output of a KDF like bcrypt, if it's derived from user input.

func (PrivKeySecp256k1) Bytes 

func (privKey PrivKeySecp256k1) Bytes() []byte

func (PrivKeySecp256k1) Equals 

func (privKey PrivKeySecp256k1) Equals(other PrivKey) bool

func (PrivKeySecp256k1) KeyString 

func (privKey PrivKeySecp256k1) KeyString() string

func (PrivKeySecp256k1) PubKey 

func (privKey PrivKeySecp256k1) PubKey() PubKey

func (PrivKeySecp256k1) Sign 

func (privKey PrivKeySecp256k1) Sign(msg []byte) Signature

func (PrivKeySecp256k1) String 

func (privKey PrivKeySecp256k1) String() string

type PubKey 

type PubKey interface {
	Address() []byte
	Bytes() []byte
	KeyString() string
	VerifyBytes(msg []byte, sig Signature) bool
	Equals(PubKey) bool
}

PubKey is part of Account and Validator.

func PubKeyFromBytes 

func PubKeyFromBytes(pubKeyBytes []byte) (pubKey PubKey, err error)

func SetNodePubkey 

func SetNodePubkey(data []byte) PubKey

type PubKeyEd25519 

type PubKeyEd25519 [PubKeyLenEd25519]byte

Implements PubKey

func (PubKeyEd25519) Address 

func (pubKey PubKeyEd25519) Address() []byte

func (PubKeyEd25519) Bytes 

func (pubKey PubKeyEd25519) Bytes() []byte

func (PubKeyEd25519) Equals 

func (pubKey PubKeyEd25519) Equals(other PubKey) bool

func (PubKeyEd25519) KeyString 

func (pubKey PubKeyEd25519) KeyString() string

Must return the full bytes in hex. Used for map keying, etc.

func (PubKeyEd25519) String 

func (pubKey PubKeyEd25519) String() string

func (PubKeyEd25519) ToCurve25519 

func (pubKey PubKeyEd25519) ToCurve25519() *[32]byte

For use with golang/crypto/nacl/box If error, returns nil.

func (PubKeyEd25519) VerifyBytes 

func (pubKey PubKeyEd25519) VerifyBytes(msg []byte, sig_ Signature) bool

type PubKeySecp256k1 

type PubKeySecp256k1 [PubKeyLenSecp256k1]byte

Implements PubKey

func (PubKeySecp256k1) Address 

func (pubKey PubKeySecp256k1) Address() []byte

func (PubKeySecp256k1) Bytes 

func (pubKey PubKeySecp256k1) Bytes() []byte

func (PubKeySecp256k1) Equals 

func (pubKey PubKeySecp256k1) Equals(other PubKey) bool

func (PubKeySecp256k1) KeyString 

func (pubKey PubKeySecp256k1) KeyString() string

Must return the full bytes in hex. Used for map keying, etc.

func (PubKeySecp256k1) String 

func (pubKey PubKeySecp256k1) String() string

func (PubKeySecp256k1) VerifyBytes 

func (pubKey PubKeySecp256k1) VerifyBytes(msg []byte, sig_ Signature) bool

type Signature 

type Signature interface {
	Bytes() []byte
	IsZero() bool
	String() string
	Equals(Signature) bool
	KeyString() string
}

Signature is a part of Txs and consensus Votes.

func SetNodeSignature 

func SetNodeSignature(data []byte) Signature

func SignatureFromBytes 

func SignatureFromBytes(sigBytes []byte) (sig Signature, err error)

type SignatureEd25519 

type SignatureEd25519 [SignKeyLenEd25519]byte

Implements Signature

func (SignatureEd25519) Bytes 

func (sig SignatureEd25519) Bytes() []byte

func (SignatureEd25519) Equals 

func (sig SignatureEd25519) Equals(other Signature) bool

func (SignatureEd25519) IsZero 

func (sig SignatureEd25519) IsZero() bool

func (SignatureEd25519) KeyString 

func (sig SignatureEd25519) KeyString() string

func (SignatureEd25519) String 

func (sig SignatureEd25519) String() string

type SignatureSecp256k1 

type SignatureSecp256k1 []byte

Implements Signature

func (SignatureSecp256k1) Bytes 

func (sig SignatureSecp256k1) Bytes() []byte

func (SignatureSecp256k1) Equals 

func (sig SignatureSecp256k1) Equals(other Signature) bool

func (SignatureSecp256k1) IsZero 

func (sig SignatureSecp256k1) IsZero() bool

func (SignatureSecp256k1) KeyString 

func (sig SignatureSecp256k1) KeyString() string

func (SignatureSecp256k1) String 

func (sig SignatureSecp256k1) String() string

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