forked from toolshed/abra
49 lines
1.6 KiB
Go
49 lines
1.6 KiB
Go
// Package ecc implements a generic interface for ECDH, ECDSA, and EdDSA.
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package ecc
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import (
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"io"
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"math/big"
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)
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type Curve interface {
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GetCurveName() string
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}
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type ECDSACurve interface {
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Curve
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MarshalIntegerPoint(x, y *big.Int) []byte
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UnmarshalIntegerPoint([]byte) (x, y *big.Int)
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MarshalIntegerSecret(d *big.Int) []byte
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UnmarshalIntegerSecret(d []byte) *big.Int
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GenerateECDSA(rand io.Reader) (x, y, secret *big.Int, err error)
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Sign(rand io.Reader, x, y, d *big.Int, hash []byte) (r, s *big.Int, err error)
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Verify(x, y *big.Int, hash []byte, r, s *big.Int) bool
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ValidateECDSA(x, y *big.Int, secret []byte) error
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}
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type EdDSACurve interface {
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Curve
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MarshalBytePoint(x []byte) []byte
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UnmarshalBytePoint([]byte) (x []byte)
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MarshalByteSecret(d []byte) []byte
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UnmarshalByteSecret(d []byte) []byte
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MarshalSignature(sig []byte) (r, s []byte)
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UnmarshalSignature(r, s []byte) (sig []byte)
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GenerateEdDSA(rand io.Reader) (pub, priv []byte, err error)
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Sign(publicKey, privateKey, message []byte) (sig []byte, err error)
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Verify(publicKey, message, sig []byte) bool
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ValidateEdDSA(publicKey, privateKey []byte) (err error)
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}
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type ECDHCurve interface {
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Curve
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MarshalBytePoint([]byte) (encoded []byte)
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UnmarshalBytePoint(encoded []byte) []byte
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MarshalByteSecret(d []byte) []byte
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UnmarshalByteSecret(d []byte) []byte
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GenerateECDH(rand io.Reader) (point []byte, secret []byte, err error)
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Encaps(rand io.Reader, point []byte) (ephemeral, sharedSecret []byte, err error)
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Decaps(ephemeral, secret []byte) (sharedSecret []byte, err error)
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ValidateECDH(public []byte, secret []byte) error
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}
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