fix(plugin): enhanced AES encryption security (#533)

backend/domain/plugin/utils/aes_test.go

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package utils
+
+import (
+	"testing"
+
+	"github.com/bytedance/mockey"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDecryptByAES(t *testing.T) {
+	mockey.PatchConvey("unsafe encryption compatibility", t, func() {
+		secret := "test_secret_1234"
+		plaintext := []byte("test_plaintext")
+
+		encrypted, err := UnsafeEncryptByAES(plaintext, secret)
+		assert.NoError(t, err)
+
+		decrypted, err := DecryptByAES(encrypted, secret)
+		assert.NoError(t, err)
+		assert.Equal(t, plaintext, decrypted)
+	})
+
+	mockey.PatchConvey("safe encryption", t, func() {
+		secret := "test_secret_1234"
+		plaintext := []byte("test_plaintext")
+
+		encrypted, err := EncryptByAES(plaintext, secret)
+		assert.NoError(t, err)
+
+		decrypted, err := DecryptByAES(encrypted, secret)
+		assert.NoError(t, err)
+		assert.Equal(t, plaintext, decrypted)
+	})
+}