xref: /aosp_15_r20/external/tink/go/keyset/mem_io.go (revision e7b1675dde1b92d52ec075b0a92829627f2c52a5)
1// Copyright 2019 Google LLC
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//      http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14//
15////////////////////////////////////////////////////////////////////////////////
16
17package keyset
18
19import tinkpb "github.com/google/tink/go/proto/tink_go_proto"
20
21// MemReaderWriter implements keyset.Reader and keyset.Writer for *tinkpb.Keyset and *tinkpb.EncryptedKeyset.
22//
23// Deprecated: Use [keyset.NewBinaryReader] or [keyset.NewBinaryWriter] instead. See tests in
24// mem_io_test.go for examples on how to use them instead.
25type MemReaderWriter struct {
26	Keyset          *tinkpb.Keyset
27	EncryptedKeyset *tinkpb.EncryptedKeyset
28}
29
30// MemReaderWriter implements Reader and Writer.
31var _ Reader = &MemReaderWriter{}
32var _ Writer = &MemReaderWriter{}
33
34// Read returns *tinkpb.Keyset from memory.
35func (m *MemReaderWriter) Read() (*tinkpb.Keyset, error) {
36	return m.Keyset, nil
37}
38
39// ReadEncrypted returns *tinkpb.EncryptedKeyset from memory.
40func (m *MemReaderWriter) ReadEncrypted() (*tinkpb.EncryptedKeyset, error) {
41	return m.EncryptedKeyset, nil
42}
43
44// Write keyset to memory.
45func (m *MemReaderWriter) Write(keyset *tinkpb.Keyset) error {
46	m.Keyset = keyset
47	return nil
48}
49
50// WriteEncrypted keyset to memory.
51func (m *MemReaderWriter) WriteEncrypted(keyset *tinkpb.EncryptedKeyset) error {
52	m.EncryptedKeyset = keyset
53	return nil
54}
55