crypto

package
v0.8.5 Latest Latest
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 Go to latest Published: Feb 22, 2015 License: LGPL-2.1-or-later Imports: 30 Imported by: 0

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Index

Constants

This section is empty.

Variables

View Source 
var MnemonicWords []string = []string{}/* 1626 elements not displayed */

Functions

func CreateAddress 

func CreateAddress(b []byte, nonce uint64) []byte

Creates an ethereum address given the bytes and the nonce

func Decrypt 

func Decrypt(prv *ecdsa.PrivateKey, ct []byte) ([]byte, error)

func DecryptKey added in v0.8.4 

func DecryptKey(ks keyStorePassphrase, keyAddr []byte, auth string) (keyBytes []byte, keyId []byte, err error)

func DefaultDataDir added in v0.8.4 

func DefaultDataDir() string

TODO: copied from cmd/ethereum/flags.go

func Ecrecover 

func Ecrecover(data []byte) []byte

func Encrypt 

func Encrypt(pub *ecdsa.PublicKey, message []byte) ([]byte, error)

func FromECDSA 

func FromECDSA(prv *ecdsa.PrivateKey) []byte

func FromECDSAPub 

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

func GenerateKey 

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

func GetKeyAddresses added in v0.8.4 

func GetKeyAddresses(keysDirPath string) (addresses [][]byte, err error)

func GetKeyFile added in v0.8.4 

func GetKeyFile(keysDirPath string, keyAddr []byte) (fileContent []byte, err error)

func HexToECDSA added in v0.8.4 

func HexToECDSA(hexkey string) (*ecdsa.PrivateKey, error)

HexToECDSA parses a secp256k1 private key.

func IndexOf 

func IndexOf(slice []string, value string) int64

TODO: See if we can refactor this into a shared util lib if we need it multiple times

func LoadECDSA added in v0.8.4 

func LoadECDSA(file string) (*ecdsa.PrivateKey, error)

LoadECDSA loads a secp256k1 private key from the given file.

func MnemonicDecode 

func MnemonicDecode(wordsar []string) string

func MnemonicEncode 

func MnemonicEncode(message string) []string

func PKCS7Pad added in v0.8.4 

func PKCS7Pad(in []byte) []byte

From https://leanpub.com/gocrypto/read#leanpub-auto-block-cipher-modes

func PKCS7Unpad added in v0.8.4 

func PKCS7Unpad(in []byte) []byte

func PubkeyToAddress added in v0.8.4 

func PubkeyToAddress(p ecdsa.PublicKey) []byte

func Ripemd160 

func Ripemd160(data []byte) []byte

func Sha256 

func Sha256(data []byte) []byte

func Sha3 

func Sha3(data ...[]byte) []byte

func SigToPub 

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

func Sign 

func Sign(hash []byte, prv *ecdsa.PrivateKey) (sig []byte, err error)

func ToECDSA 

func ToECDSA(prv []byte) *ecdsa.PrivateKey

New methods using proper ecdsa keys from the stdlib

func ToECDSAPub 

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

func WriteKeyFile added in v0.8.4 

func WriteKeyFile(addr []byte, keysDirPath string, content []byte) (err error)

Types

type BitCurve 

type BitCurve struct {
	P       *big.Int // the order of the underlying field
	N       *big.Int // the order of the base point
	B       *big.Int // the constant of the BitCurve equation
	Gx, Gy  *big.Int // (x,y) of the base point
	BitSize int      // the size of the underlying field
}

A BitCurve represents a Koblitz Curve with a=0. See http://www.hyperelliptic.org/EFD/g1p/auto-shortw.html

func S160 

func S160() *BitCurve

S160 returns a BitCurve which implements secp160k1 (see SEC 2 section 2.4.1)

func S192 

func S192() *BitCurve

S192 returns a BitCurve which implements secp192k1 (see SEC 2 section 2.5.1)

func S224 

func S224() *BitCurve

S224 returns a BitCurve which implements secp224k1 (see SEC 2 section 2.6.1)

func S256 

func S256() *BitCurve

S256 returns a BitCurve which implements secp256k1 (see SEC 2 section 2.7.1)

func (*BitCurve) Add 

func (BitCurve *BitCurve) Add(x1, y1, x2, y2 *big.Int) (*big.Int, *big.Int)

Add returns the sum of (x1,y1) and (x2,y2)

func (*BitCurve) Double 

func (BitCurve *BitCurve) Double(x1, y1 *big.Int) (*big.Int, *big.Int)

Double returns 2*(x,y)

func (*BitCurve) GenerateKey 

func (BitCurve *BitCurve) GenerateKey(rand io.Reader) (priv []byte, x, y *big.Int, err error)

TODO: double check if it is okay GenerateKey returns a public/private key pair. The private key is generated using the given reader, which must return random data.

func (*BitCurve) IsOnCurve 

func (BitCurve *BitCurve) IsOnCurve(x, y *big.Int) bool

IsOnBitCurve returns true if the given (x,y) lies on the BitCurve.

func (*BitCurve) Marshal 

func (BitCurve *BitCurve) Marshal(x, y *big.Int) []byte

Marshal converts a point into the form specified in section 4.3.6 of ANSI X9.62.

func (*BitCurve) Params 

func (BitCurve *BitCurve) Params() *elliptic.CurveParams

func (*BitCurve) ScalarBaseMult 

func (BitCurve *BitCurve) ScalarBaseMult(k []byte) (*big.Int, *big.Int)

ScalarBaseMult returns k*G, where G is the base point of the group and k is an integer in big-endian form.

func (*BitCurve) ScalarMult 

func (BitCurve *BitCurve) ScalarMult(Bx, By *big.Int, k []byte) (*big.Int, *big.Int)

TODO: double check if it is okay ScalarMult returns k*(Bx,By) where k is a number in big-endian form.

func (*BitCurve) Unmarshal 

func (BitCurve *BitCurve) Unmarshal(data []byte) (x, y *big.Int)

Unmarshal converts a point, serialised by Marshal, into an x, y pair. On error, x = nil.

type DBKeyStore 

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

func (*DBKeyStore) Load 

func (k *DBKeyStore) Load(session string) (*KeyRing, error)

func (*DBKeyStore) Save 

func (k *DBKeyStore) Save(session string, keyRing *KeyRing) error

type FileKeyStore 

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

func (*FileKeyStore) Load 

func (k *FileKeyStore) Load(session string) (*KeyRing, error)

func (*FileKeyStore) Save 

func (k *FileKeyStore) Save(session string, keyRing *KeyRing) error

type Key added in v0.8.4 

type Key struct {
	Id uuid.UUID // Version 4 "random" for unique id not derived from key data
	// to simplify lookups we also store the address
	Address []byte
	// we only store privkey as pubkey/address can be derived from it
	// privkey in this struct is always in plaintext
	PrivateKey *ecdsa.PrivateKey
}

func GenerateNewKeyDefault added in v0.8.4 

func GenerateNewKeyDefault(ks KeyStore2, rand io.Reader, auth string) (key *Key, err error)

func ImportPreSaleKey added in v0.8.4 

func ImportPreSaleKey(keyStore KeyStore2, keyJSON []byte, password string) (*Key, error)

creates a Key and stores that in the given KeyStore by decrypting a presale key JSON

func NewKey added in v0.8.4 

func NewKey(rand io.Reader) *Key

func (*Key) MarshalJSON added in v0.8.4 

func (k *Key) MarshalJSON() (j []byte, err error)

func (*Key) UnmarshalJSON added in v0.8.4 

func (k *Key) UnmarshalJSON(j []byte) (err error)

type KeyManager 

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

func NewDBKeyManager 

func NewDBKeyManager(db ethutil.Database) *KeyManager

func NewFileKeyManager 

func NewFileKeyManager(basedir string) *KeyManager

func (*KeyManager) Address 

func (k *KeyManager) Address() []byte

func (*KeyManager) Export 

func (k *KeyManager) Export(dir string) error

func (*KeyManager) Init 

func (k *KeyManager) Init(session string, cursor int, force bool) error

func (*KeyManager) InitFromSecretsFile 

func (k *KeyManager) InitFromSecretsFile(session string, cursor int, secretsfile string) error

func (*KeyManager) InitFromString 

func (k *KeyManager) InitFromString(session string, cursor int, secrets string) error

func (*KeyManager) KeyPair 

func (k *KeyManager) KeyPair() *KeyPair

func (*KeyManager) KeyRing 

func (k *KeyManager) KeyRing() *KeyPair

func (*KeyManager) PrivateKey 

func (k *KeyManager) PrivateKey() []byte

func (*KeyManager) PublicKey 

func (k *KeyManager) PublicKey() []byte

func (*KeyManager) SetCursor 

func (k *KeyManager) SetCursor(cursor int) error

type KeyPair 

type KeyPair struct {
	PrivateKey []byte
	PublicKey  []byte
	// contains filtered or unexported fields
}

func GenerateNewKeyPair 

func GenerateNewKeyPair() *KeyPair

func NewKeyPairFromSec 

func NewKeyPairFromSec(seckey []byte) (*KeyPair, error)

func (*KeyPair) Address 

func (k *KeyPair) Address() []byte

func (*KeyPair) AsStrings 

func (k *KeyPair) AsStrings() (string, string, string, string)

func (*KeyPair) Mnemonic 

func (k *KeyPair) Mnemonic() string

func (*KeyPair) RlpEncode 

func (k *KeyPair) RlpEncode() []byte

func (*KeyPair) RlpValue 

func (k *KeyPair) RlpValue() *ethutil.Value

type KeyRing 

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

func NewGeneratedKeyRing 

func NewGeneratedKeyRing(len int) *KeyRing

func NewKeyRing 

func NewKeyRing() *KeyRing

func NewKeyRingFromBytes 

func NewKeyRingFromBytes(data []byte) (*KeyRing, error)

func NewKeyRingFromFile 

func NewKeyRingFromFile(secfile string) (*KeyRing, error)

func NewKeyRingFromSecrets 

func NewKeyRingFromSecrets(secs [][]byte) (*KeyRing, error)

func NewKeyRingFromString 

func NewKeyRingFromString(content string) (*KeyRing, error)

func (*KeyRing) AddKeyPair 

func (k *KeyRing) AddKeyPair(keyPair *KeyPair)

func (*KeyRing) Each 

func (k *KeyRing) Each(f func(*KeyPair))

func (*KeyRing) Empty 

func (k *KeyRing) Empty() bool

func (*KeyRing) GetKeyPair 

func (k *KeyRing) GetKeyPair(i int) *KeyPair

func (*KeyRing) Len 

func (k *KeyRing) Len() int

func (*KeyRing) RlpEncode 

func (k *KeyRing) RlpEncode() []byte

func (*KeyRing) RlpValue 

func (k *KeyRing) RlpValue() *ethutil.Value

type KeyStore 

type KeyStore interface {
	Load(string) (*KeyRing, error)
	Save(string, *KeyRing) error
}

type KeyStore2 added in v0.8.4 

type KeyStore2 interface {
	// create new key using io.Reader entropy source and optionally using auth string
	GenerateNewKey(io.Reader, string) (*Key, error)
	GetKey([]byte, string) (*Key, error) // key from addr and auth string
	GetKeyAddresses() ([][]byte, error)  // get all addresses
	StoreKey(*Key, string) error         // store key optionally using auth string
	DeleteKey([]byte, string) error      // delete key by addr and auth string
}

TODO: rename to KeyStore when replacing existing KeyStore

func NewKeyStorePassphrase added in v0.8.4 

func NewKeyStorePassphrase(path string) KeyStore2

func NewKeyStorePlain added in v0.8.4 

func NewKeyStorePlain(path string) KeyStore2

Source Files

View all Source files

Directories

Path Synopsis
Package sha3 implements the SHA3 hash algorithm (formerly called Keccak) chosen by NIST in 2012.
 Package sha3 implements the SHA3 hash algorithm (formerly called Keccak) chosen by NIST in 2012.

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