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glide.yaml Moved crypto code to top level again 8 years ago
hash.go Moved crypto code to top level again 8 years ago
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pub_key.go Moved crypto code to top level again 8 years ago
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signature.go Moved crypto code to top level again 8 years ago
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symmetric.go Moved crypto code to top level again 8 years ago
symmetric_test.go Moved crypto code to top level again 8 years ago

README.md

crypto

import "github.com/tendermint/go-crypto"

Overview

Index

Package files

armor.go hash.go priv_key.go pub_key.go random.go signature.go symmetric.go

Constants

const (
    TypeEd25519   = byte(0x01)
    TypeSecp256k1 = byte(0x02)
    NameEd25519   = "ed25519"
    NameSecp256k1 = "secp256k1"
)

Types of implementations

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 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 Ripemd160

func Ripemd160(bytes []byte) []byte

func Sha256

func Sha256(bytes []byte) []byte

type PrivKey

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

PrivKey is part of PrivAccount and state.PrivValidator.

func PrivKeyFromBytes

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

type PrivKeyEd25519

type PrivKeyEd25519 [64]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) MarshalJSON

func (p PrivKeyEd25519) MarshalJSON() ([]byte, error)

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

func (*PrivKeyEd25519) UnmarshalJSON

func (p *PrivKeyEd25519) UnmarshalJSON(enc []byte) error

type PrivKeyS

type PrivKeyS struct {
    PrivKey
}

PrivKeyS add json serialization to PrivKey

func (PrivKeyS) Empty

func (p PrivKeyS) Empty() bool

func (PrivKeyS) MarshalJSON

func (p PrivKeyS) MarshalJSON() ([]byte, error)

func (*PrivKeyS) UnmarshalJSON

func (p *PrivKeyS) UnmarshalJSON(data []byte) (err error)

type PrivKeySecp256k1

type PrivKeySecp256k1 [32]byte

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) MarshalJSON

func (p PrivKeySecp256k1) MarshalJSON() ([]byte, error)

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

func (*PrivKeySecp256k1) UnmarshalJSON

func (p *PrivKeySecp256k1) UnmarshalJSON(enc []byte) error

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)

type PubKeyEd25519

type PubKeyEd25519 [32]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) MarshalJSON

func (p PubKeyEd25519) MarshalJSON() ([]byte, error)

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) UnmarshalJSON

func (p *PubKeyEd25519) UnmarshalJSON(enc []byte) error

func (PubKeyEd25519) VerifyBytes

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

type PubKeyS

type PubKeyS struct {
    PubKey
}

PubKeyS add json serialization to PubKey

func (PubKeyS) Empty

func (p PubKeyS) Empty() bool

func (PubKeyS) MarshalJSON

func (p PubKeyS) MarshalJSON() ([]byte, error)

func (*PubKeyS) UnmarshalJSON

func (p *PubKeyS) UnmarshalJSON(data []byte) (err error)

type PubKeySecp256k1

type PubKeySecp256k1 [33]byte

Implements PubKey. Compressed pubkey (just the x-cord), prefixed with 0x02 or 0x03, depending on the y-cord.

func (PubKeySecp256k1) Address

func (pubKey PubKeySecp256k1) Address() []byte

Implements Bitcoin style addresses: RIPEMD160(SHA256(pubkey))

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) MarshalJSON

func (p PubKeySecp256k1) MarshalJSON() ([]byte, error)

func (PubKeySecp256k1) String

func (pubKey PubKeySecp256k1) String() string

func (*PubKeySecp256k1) UnmarshalJSON

func (p *PubKeySecp256k1) UnmarshalJSON(enc []byte) error

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
}

Signature is a part of Txs and consensus Votes.

func SignatureFromBytes

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

type SignatureEd25519

type SignatureEd25519 [64]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) MarshalJSON

func (p SignatureEd25519) MarshalJSON() ([]byte, error)

func (SignatureEd25519) String

func (sig SignatureEd25519) String() string

func (*SignatureEd25519) UnmarshalJSON

func (p *SignatureEd25519) UnmarshalJSON(enc []byte) error

type SignatureS

type SignatureS struct {
    Signature
}

SignatureS add json serialization to Signature

func (SignatureS) Empty

func (p SignatureS) Empty() bool

func (SignatureS) MarshalJSON

func (p SignatureS) MarshalJSON() ([]byte, error)

func (*SignatureS) UnmarshalJSON

func (p *SignatureS) UnmarshalJSON(data []byte) (err error)

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) MarshalJSON

func (p SignatureSecp256k1) MarshalJSON() ([]byte, error)

func (SignatureSecp256k1) String

func (sig SignatureSecp256k1) String() string

func (*SignatureSecp256k1) UnmarshalJSON

func (p *SignatureSecp256k1) UnmarshalJSON(enc []byte) error

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