mirror of https://github.com/mautrix/go.git
35 lines
841 B
Go
35 lines
841 B
Go
// Copyright (c) 2024 Sumner Evans
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package backup
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import (
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"crypto/ecdh"
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"crypto/rand"
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)
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// MegolmBackupKey is a wrapper around an ECDH X25519 private key that is used
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// to decrypt a megolm key backup.
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type MegolmBackupKey struct {
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*ecdh.PrivateKey
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}
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func NewMegolmBackupKey() (*MegolmBackupKey, error) {
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key, err := ecdh.X25519().GenerateKey(rand.Reader)
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if err != nil {
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return nil, err
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}
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return &MegolmBackupKey{key}, nil
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}
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func MegolmBackupKeyFromBytes(bytes []byte) (*MegolmBackupKey, error) {
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key, err := ecdh.X25519().NewPrivateKey(bytes)
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if err != nil {
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return nil, err
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}
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return &MegolmBackupKey{key}, nil
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}
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