mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-30 00:21:36 +00:00
74 lines
2.7 KiB
Go
74 lines
2.7 KiB
Go
|
// Copyright 2019 The Go Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
// +build go1.13
|
||
|
|
|
||
|
|
// Package ed25519 implements the Ed25519 signature algorithm. See
|
||
|
|
// https://ed25519.cr.yp.to/.
|
||
|
|
//
|
||
|
|
// These functions are also compatible with the “Ed25519” function defined in
|
||
|
|
// RFC 8032. However, unlike RFC 8032's formulation, this package's private key
|
||
|
|
// representation includes a public key suffix to make multiple signing
|
||
|
|
// operations with the same key more efficient. This package refers to the RFC
|
||
|
|
// 8032 private key as the “seed”.
|
||
|
|
//
|
||
|
|
// Beginning with Go 1.13, the functionality of this package was moved to the
|
||
|
|
// standard library as crypto/ed25519. This package only acts as a compatibility
|
||
|
|
// wrapper.
|
||
|
|
package ed25519
|
||
|
|
|
||
|
|
import (
|
||
|
|
"crypto/ed25519"
|
||
|
|
"io"
|
||
|
|
)
|
||
|
|
|
||
|
|
const (
|
||
|
|
// PublicKeySize is the size, in bytes, of public keys as used in this package.
|
||
|
|
PublicKeySize = 32
|
||
|
|
// PrivateKeySize is the size, in bytes, of private keys as used in this package.
|
||
|
|
PrivateKeySize = 64
|
||
|
|
// SignatureSize is the size, in bytes, of signatures generated and verified by this package.
|
||
|
|
SignatureSize = 64
|
||
|
|
// SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032.
|
||
|
|
SeedSize = 32
|
||
|
|
)
|
||
|
|
|
||
|
|
// PublicKey is the type of Ed25519 public keys.
|
||
|
|
//
|
||
|
|
// This type is an alias for crypto/ed25519's PublicKey type.
|
||
|
|
// See the crypto/ed25519 package for the methods on this type.
|
||
|
|
type PublicKey = ed25519.PublicKey
|
||
|
|
|
||
|
|
// PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer.
|
||
|
|
//
|
||
|
|
// This type is an alias for crypto/ed25519's PrivateKey type.
|
||
|
|
// See the crypto/ed25519 package for the methods on this type.
|
||
|
|
type PrivateKey = ed25519.PrivateKey
|
||
|
|
|
||
|
|
// GenerateKey generates a public/private key pair using entropy from rand.
|
||
|
|
// If rand is nil, crypto/rand.Reader will be used.
|
||
|
|
func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) {
|
||
|
|
return ed25519.GenerateKey(rand)
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewKeyFromSeed calculates a private key from a seed. It will panic if
|
||
|
|
// len(seed) is not SeedSize. This function is provided for interoperability
|
||
|
|
// with RFC 8032. RFC 8032's private keys correspond to seeds in this
|
||
|
|
// package.
|
||
|
|
func NewKeyFromSeed(seed []byte) PrivateKey {
|
||
|
|
return ed25519.NewKeyFromSeed(seed)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Sign signs the message with privateKey and returns a signature. It will
|
||
|
|
// panic if len(privateKey) is not PrivateKeySize.
|
||
|
|
func Sign(privateKey PrivateKey, message []byte) []byte {
|
||
|
|
return ed25519.Sign(privateKey, message)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Verify reports whether sig is a valid signature of message by publicKey. It
|
||
|
|
// will panic if len(publicKey) is not PublicKeySize.
|
||
|
|
func Verify(publicKey PublicKey, message, sig []byte) bool {
|
||
|
|
return ed25519.Verify(publicKey, message, sig)
|
||
|
|
}
|