80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
package aes
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import (
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"math"
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"testing"
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"github.com/jrapoport/chestnut/encryptor/crypto"
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"github.com/stretchr/testify/assert"
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)
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func TestAllCiphers(t *testing.T) {
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ciphers := []struct {
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name crypto.Mode
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encryptCall CipherCall
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decryptCall CipherCall
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}{
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{CFB, EncryptCFB, DecryptCFB},
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{CTR, EncryptCTR, DecryptCTR},
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{GCM, EncryptGCM, DecryptGCM},
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}
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for _, cipher := range ciphers {
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t.Run(cipher.name.String(), func(t *testing.T) {
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testCipher(t, cipher.encryptCall, cipher.decryptCall)
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})
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}
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}
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func testCipher(t *testing.T, encryptCall, decryptCall CipherCall) {
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const (
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secret = "i-am-a-good-secret"
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plaintext = "Lorem ipsum dolor sit amet"
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)
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lens := []crypto.KeyLen{
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crypto.Key128,
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crypto.Key192,
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crypto.Key256,
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}
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for _, l := range lens {
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t.Run(l.String(), func(t *testing.T) {
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encrypted, err := encryptCall(l, []byte(secret), []byte(plaintext))
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assert.NoError(t, err)
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assert.NotEmpty(t, encrypted)
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data, err := crypto.DecodeData(encrypted)
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assert.NoError(t, err)
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assert.NotNil(t, data)
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assert.NoError(t, isDataValid(data))
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assert.Equal(t, l, data.KeyLen)
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decrypted, err := decryptCall(l, []byte(secret), encrypted)
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assert.NoError(t, err)
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assert.NotEmpty(t, decrypted)
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assert.Equal(t, plaintext, string(decrypted))
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})
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}
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// bad plain data
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_, err := encryptCall(crypto.Key256, []byte(secret), nil)
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assert.Error(t, err)
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// mismatch
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e, _ := encryptCall(crypto.Key256, []byte(secret), []byte(plaintext))
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d, _ := decryptCall(crypto.Key128, []byte(secret), e)
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assert.NotEqual(t, plaintext, string(d))
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// bad cipher data
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badData := [][]byte{
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nil,
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[]byte(""),
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[]byte("bad"),
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}
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for _, bd := range badData {
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_, err = decryptCall(crypto.Key256, []byte(secret), bd)
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assert.Error(t, err)
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}
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for _, bd := range badData {
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_, err = decryptCall(0, nil, bd)
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assert.Error(t, err)
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}
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for _, bd := range badData {
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_, err = decryptCall(math.MaxInt64, nil, bd)
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assert.Error(t, err)
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}
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}
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