import "github.com/axiomzen/go-ethereum/crypto/ecies"
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") = fmt.Errorf("ecies: shared key is point at infinity") = fmt.Errorf("ecies: shared key params are too big") )
var ( ErrKeyDataTooLong = fmt.Errorf("ecies: can't supply requested key data") = fmt.Errorf("ecies: shared secret is too long") ErrInvalidMessage = fmt.Errorf("ecies: invalid message") )
var ( DefaultCurve = ethcrypto.S256() ErrUnsupportedECDHAlgorithm = fmt.Errorf("ecies: unsupported ECDH algorithm") ErrUnsupportedECIESParameters = fmt.Errorf("ecies: unsupported ECIES parameters") )
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, } )
func AddParamsForCurve(curve elliptic.Curve, params *ECIESParams)
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.
MaxSharedKeyLength returns the maximum length of the shared key the public key can produce.
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(curve elliptic.Curve) (params *ECIESParams)
ParamsFromCurve selects parameters optimal for the selected elliptic curve. Only the curves P256, P384, and P512 are supported.
PrivateKey is a representation of an elliptic curve private key.
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(prv *ecdsa.PrivateKey) *PrivateKey
Import an ECDSA private key as an ECIES private key.
func (prv *PrivateKey) Decrypt(c, s1, s2 []byte) (m []byte, err error)
Decrypt decrypts an ECIES ciphertext.
func (prv *PrivateKey) ExportECDSA() *ecdsa.PrivateKey
Export an ECIES private key as an ECDSA private key.
ECDH key agreement method used to establish secret keys for encryption.
PublicKey is a representation of an elliptic curve public key.
Import an ECDSA public key as an ECIES public key.
Export an ECIES public key as an ECDSA public key.
Package ecies imports 14 packages (graph). Updated 2019-07-06. Refresh now. Tools for package owners.