1
2 package ecc
3
4 import (
5 "io"
6 "math/big"
7 )
8
9 type Curve interface {
10 GetCurveName() string
11 }
12
13 type ECDSACurve interface {
14 Curve
15 MarshalIntegerPoint(x, y *big.Int) []byte
16 UnmarshalIntegerPoint([]byte) (x, y *big.Int)
17 MarshalIntegerSecret(d *big.Int) []byte
18 UnmarshalIntegerSecret(d []byte) *big.Int
19 GenerateECDSA(rand io.Reader) (x, y, secret *big.Int, err error)
20 Sign(rand io.Reader, x, y, d *big.Int, hash []byte) (r, s *big.Int, err error)
21 Verify(x, y *big.Int, hash []byte, r, s *big.Int) bool
22 ValidateECDSA(x, y *big.Int, secret []byte) error
23 }
24
25 type EdDSACurve interface {
26 Curve
27 MarshalBytePoint(x []byte) []byte
28 UnmarshalBytePoint([]byte) (x []byte)
29 MarshalByteSecret(d []byte) []byte
30 UnmarshalByteSecret(d []byte) []byte
31 MarshalSignature(sig []byte) (r, s []byte)
32 UnmarshalSignature(r, s []byte) (sig []byte)
33 GenerateEdDSA(rand io.Reader) (pub, priv []byte, err error)
34 Sign(publicKey, privateKey, message []byte) (sig []byte, err error)
35 Verify(publicKey, message, sig []byte) bool
36 ValidateEdDSA(publicKey, privateKey []byte) (err error)
37 }
38 type ECDHCurve interface {
39 Curve
40 MarshalBytePoint([]byte) (encoded []byte)
41 UnmarshalBytePoint(encoded []byte) []byte
42 MarshalByteSecret(d []byte) []byte
43 UnmarshalByteSecret(d []byte) []byte
44 GenerateECDH(rand io.Reader) (point []byte, secret []byte, err error)
45 Encaps(rand io.Reader, point []byte) (ephemeral, sharedSecret []byte, err error)
46 Decaps(ephemeral, secret []byte) (sharedSecret []byte, err error)
47 ValidateECDH(public []byte, secret []byte) error
48 }
49
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