Documentation
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Index ¶
- Variables
- func EccDecrypt(cryptText, key []byte) (msg []byte, err error)
- func EccEncrypt(src, key []byte) (cryptText []byte, err error)
- func EccSign(msg []byte, Key []byte) ([]byte, []byte, error)
- func EccVerifySign(msg []byte, Key []byte, rText, sText []byte) bool
- func Encrypt(rand io.Reader, pub *PublicKey, m, s1, s2 []byte) (ct []byte, err error)
- func GetEccKey(eccPrivateFileName, eccPublishFileName string) error
- func MaxSharedKeyLength(pub *PublicKey) int
- type ECIESParams
- type PrivateKey
- type PublicKey
Constants ¶
This section is empty.
Variables ¶
var ( ErrImport = fmt.Errorf("ecies: failed to import key") ErrInvalidCurve = fmt.Errorf("ecies: invalid elliptic curve") ErrInvalidParams = fmt.Errorf("ecies: invalid ECIES parameters") ErrInvalidPublicKey = fmt.Errorf("ecies: invalid public key") ErrUnsupportedECIESParameters = fmt.Errorf("ecies: unsupported ECIES parameters") )
var ( ErrKeyDataTooLong = fmt.Errorf("ecies: can't supply requested key data") ErrInvalidMessage = fmt.Errorf("ecies: invalid message") )
var ( ECIES_AES128_SHA256 = &ECIESParams{ Hash: sha256.New, hashAlgo: crypto.SHA256, Cipher: aes.NewCipher, BlockSize: aes.BlockSize, KeyLen: 16, } ECIES_AES256_SHA256 = &ECIESParams{ Hash: sha256.New, hashAlgo: crypto.SHA256, Cipher: aes.NewCipher, BlockSize: aes.BlockSize, KeyLen: 32, } ECIES_AES256_SHA384 = &ECIESParams{ Hash: sha512.New384, hashAlgo: crypto.SHA384, Cipher: aes.NewCipher, BlockSize: aes.BlockSize, KeyLen: 32, } ECIES_AES256_SHA512 = &ECIESParams{ Hash: sha512.New, hashAlgo: crypto.SHA512, Cipher: aes.NewCipher, BlockSize: aes.BlockSize, KeyLen: 32, } )
Functions ¶
func EccDecrypt ¶
The private key and plaintext are passed in for decryption
func EccEncrypt ¶
The public key and plaintext are passed in for encryption
func Encrypt ¶
Encrypt encrypts a message using ECIES as specified in SEC 1, 5.1.
s1 and s2 contain shared information that is not part of the resulting ciphertext. s1 is fed into key derivation, s2 is fed into the MAC. If the shared information parameters aren't being used, they should be nil.
func MaxSharedKeyLength ¶
MaxSharedKeyLength returns the maximum length of the shared key the public key can produce.
Types ¶
type ECIESParams ¶
type ECIESParams struct {
Hash func() hash.Hash // hash function
Cipher func([]byte) (cipher.Block, error) // symmetric cipher
BlockSize int // block size of symmetric cipher
KeyLen int // length of symmetric key
// contains filtered or unexported fields
}
func ParamsFromCurve ¶
func ParamsFromCurve(curve elliptic.Curve) (params *ECIESParams)
以下为从以太坊源码/crypt/ecies/params.go中截取过来
type PrivateKey ¶
PrivateKey is a representation of an elliptic curve private key.
func GenerateKey ¶
func GenerateKey(rand io.Reader, curve elliptic.Curve, params *ECIESParams) (prv *PrivateKey, err error)
Generate an elliptic curve public / private keypair. If params is nil, the recommended default parameters for the key will be chosen.
func ImportECDSA ¶
func ImportECDSA(prv *ecdsa.PrivateKey) *PrivateKey
Import an ECDSA private key as an ECIES private key.
func (*PrivateKey) Decrypt ¶
func (prv *PrivateKey) Decrypt(c, s1, s2 []byte) (m []byte, err error)
Decrypt decrypts an ECIES ciphertext.
func (*PrivateKey) ExportECDSA ¶
func (prv *PrivateKey) ExportECDSA() *ecdsa.PrivateKey
Export an ECIES private key as an ECDSA private key.
func (*PrivateKey) GenerateShared ¶
func (prv *PrivateKey) GenerateShared(pub *PublicKey, skLen, macLen int) (sk []byte, err error)
ECDH key agreement method used to establish secret keys for encryption.
type PublicKey ¶
PublicKey is a representation of an elliptic curve public key.
func ImportECDSAPublic ¶
Import an ECDSA public key as an ECIES public key.
func (*PublicKey) ExportECDSA ¶
Export an ECIES public key as an ECDSA public key.
Source Files