mautrix-signal/pkg/libsignalgo/aes256gcmsiv_test.go

54 lines
2.0 KiB
Go

// mautrix-signal - A Matrix-signal puppeting bridge.
// Copyright (C) 2023 Sumner Evans
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package libsignalgo_test
import (
"testing"
"github.com/stretchr/testify/assert"
"go.mau.fi/mautrix-signal/pkg/libsignalgo"
)
// From PublicAPITests.swift:testAesGcmSiv
func TestAES256_GCM_SIV(t *testing.T) {
plaintext := []byte{0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
expectedCiphertext := []byte{0x1d, 0xe2, 0x29, 0x67, 0x23, 0x7a, 0x81, 0x32, 0x91, 0x21, 0x3f, 0x26, 0x7e, 0x3b, 0x45, 0x2f, 0x02, 0xd0, 0x1a, 0xe3, 0x3e, 0x4e, 0xc8, 0x54}
associatedData := []byte{0x01}
key := []byte{
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
}
nonce := []byte{0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
gcmSiv, err := libsignalgo.NewAES256_GCM_SIV(key)
assert.NoError(t, err)
ciphertext, err := gcmSiv.Encrypt(plaintext, nonce, associatedData)
assert.NoError(t, err)
assert.Equal(t, expectedCiphertext, ciphertext)
recovered, err := gcmSiv.Decrypt(ciphertext, nonce, associatedData)
assert.NoError(t, err)
assert.Equal(t, plaintext, recovered)
_, err = gcmSiv.Decrypt(plaintext, nonce, associatedData)
assert.Error(t, err)
_, err = gcmSiv.Decrypt(ciphertext, associatedData, nonce)
assert.Error(t, err)
}