mirror of
https://github.com/dnote/dnote
synced 2026-03-14 14:35:50 +01:00
118 lines
3.3 KiB
Go
118 lines
3.3 KiB
Go
/* Copyright (C) 2019, 2020, 2021, 2022, 2023, 2024 Monomax Software Pty Ltd
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*
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* This file is part of Dnote.
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*
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* Dnote is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dnote is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Dnote. If not, see <https://www.gnu.org/licenses/>.
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*/
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package crypt
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import (
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"crypto/aes"
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"crypto/cipher"
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"encoding/base64"
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"fmt"
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"testing"
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"github.com/dnote/dnote/pkg/assert"
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"github.com/pkg/errors"
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)
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func TestAesGcmEncrypt(t *testing.T) {
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testCases := []struct {
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key []byte
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plaintext []byte
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}{
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{
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key: []byte("AES256Key-32Characters1234567890"),
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plaintext: []byte("foo bar baz quz"),
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},
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{
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key: []byte("AES256Key-32Charactersabcdefghij"),
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plaintext: []byte("1234 foo 5678 bar 7890 baz"),
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},
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}
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for _, tc := range testCases {
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t.Run(fmt.Sprintf("key %s plaintext %s", tc.key, tc.plaintext), func(t *testing.T) {
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// encrypt
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dataB64, err := AesGcmEncrypt(tc.key, tc.plaintext)
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if err != nil {
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t.Fatal(errors.Wrap(err, "performing encryption"))
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}
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// test that data can be decrypted
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data, err := base64.StdEncoding.DecodeString(dataB64)
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if err != nil {
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t.Fatal(errors.Wrap(err, "decoding data from base64"))
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}
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nonce, ciphertext := data[:12], data[12:]
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fmt.Println(string(data))
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block, err := aes.NewCipher([]byte(tc.key))
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if err != nil {
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t.Fatal(errors.Wrap(err, "initializing aes"))
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}
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aesgcm, err := cipher.NewGCM(block)
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if err != nil {
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t.Fatal(errors.Wrap(err, "initializing gcm"))
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}
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plaintext, err := aesgcm.Open(nil, nonce, ciphertext, nil)
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if err != nil {
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t.Fatal(errors.Wrap(err, "decode"))
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}
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assert.DeepEqual(t, plaintext, tc.plaintext, "plaintext mismatch")
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})
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}
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}
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func TestAesGcmDecrypt(t *testing.T) {
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testCases := []struct {
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key []byte
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ciphertextB64 string
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expectedPlaintext string
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}{
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{
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key: []byte("AES256Key-32Characters1234567890"),
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ciphertextB64: "M2ov9hWMQ52v1S/zigwX3bJt4cVCV02uiRm/grKqN/rZxNkJrD7vK4Ii0g==",
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expectedPlaintext: "foo bar baz quz",
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},
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{
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key: []byte("AES256Key-32Characters1234567890"),
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ciphertextB64: "M4csFKUIUbD1FBEzLgHjscoKgN0lhMGJ0n2nKWiCkE/qSKlRP7kS",
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expectedPlaintext: "foo\n1\nbar\n2",
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},
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{
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key: []byte("AES256Key-32Characters1234567890"),
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ciphertextB64: "pe/fnw73MR1clmVIlRSJ5gDwBdnPly/DF7DsR5dJVz4dHZlv0b10WzvJEGOCHZEr+Q==",
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expectedPlaintext: "föo\nbār\nbåz & qūz",
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},
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}
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for _, tc := range testCases {
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t.Run(fmt.Sprintf("key %s ciphertext %s", tc.key, tc.ciphertextB64), func(t *testing.T) {
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plaintext, err := AesGcmDecrypt(tc.key, tc.ciphertextB64)
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if err != nil {
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t.Fatal(errors.Wrap(err, "performing decryption"))
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}
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assert.DeepEqual(t, plaintext, []byte(tc.expectedPlaintext), "plaintext mismatch")
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})
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}
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}
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