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refactor(crypto): simplify to local encryption only (remove KMS)
## 🎯 簡化方案(社區友好) ### 移除雲端 KMS - ❌ 刪除 crypto/aliyun_kms.go - ❌ 不包含 GCP KMS - ✅ 僅保留本地 AES-256-GCM 加密 ### 更新 SQLite 驅動 - ✅ modernc.org/sqlite(純 Go,無 CGO) - ✅ 與上游保持一致 ## 📦 保留核心功能 ✅ crypto/encryption.go - RSA + AES 加密 ✅ crypto/secure_storage.go - 數據庫加密層 ✅ api/crypto_handler.go - API 端點 ✅ web/src/lib/crypto.ts - 前端加密 ✅ scripts/migrate_encryption.go - 數據遷移 ## 🚀 部署方式 ```bash # 僅需一個環境變量 export NOFX_MASTER_KEY=$(openssl rand -base64 32) go run main.go ``` ## ✅ 優點 - ✅ 零雲服務依賴 - ✅ 簡單易部署 - ✅ 適合社區用戶 - ✅ 保持核心安全功能
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@@ -1,216 +0,0 @@
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package crypto
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import (
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"encoding/base64"
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"fmt"
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"os"
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kms "github.com/aliyun/alibaba-cloud-sdk-go/services/kms"
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)
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// AliyunKMSManager 阿里雲 KMS 管理器
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type AliyunKMSManager struct {
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client *kms.Client
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keyID string // 主密鑰 ID
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}
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// NewAliyunKMSManager 創建阿里雲 KMS 管理器
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func NewAliyunKMSManager() (*AliyunKMSManager, error) {
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// 從環境變數讀取配置
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accessKeyID := os.Getenv("ALIYUN_ACCESS_KEY_ID")
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accessKeySecret := os.Getenv("ALIYUN_ACCESS_KEY_SECRET")
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regionID := os.Getenv("ALIYUN_REGION_ID") // 如 cn-hangzhou
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keyID := os.Getenv("ALIYUN_KMS_KEY_ID") // 主密鑰 ID
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if accessKeyID == "" || accessKeySecret == "" {
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return nil, fmt.Errorf("阿里雲憑證未配置,請設置環境變數 ALIYUN_ACCESS_KEY_ID 和 ALIYUN_ACCESS_KEY_SECRET")
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}
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if keyID == "" {
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return nil, fmt.Errorf("KMS 密鑰 ID 未配置,請設置環境變數 ALIYUN_KMS_KEY_ID")
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}
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// 創建 KMS 客戶端
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client, err := kms.NewClientWithAccessKey(regionID, accessKeyID, accessKeySecret)
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if err != nil {
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return nil, fmt.Errorf("創建 KMS 客戶端失敗: %w", err)
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}
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return &AliyunKMSManager{
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client: client,
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keyID: keyID,
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}, nil
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}
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// Encrypt 使用 KMS 加密數據
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func (m *AliyunKMSManager) Encrypt(plaintext string) (string, error) {
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request := kms.CreateEncryptRequest()
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request.Scheme = "https"
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request.KeyId = m.keyID
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request.Plaintext = plaintext
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response, err := m.client.Encrypt(request)
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if err != nil {
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return "", fmt.Errorf("KMS 加密失敗: %w", err)
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}
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return response.CiphertextBlob, nil
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}
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// Decrypt 使用 KMS 解密數據
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func (m *AliyunKMSManager) Decrypt(ciphertext string) (string, error) {
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request := kms.CreateDecryptRequest()
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request.Scheme = "https"
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request.CiphertextBlob = ciphertext
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response, err := m.client.Decrypt(request)
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if err != nil {
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return "", fmt.Errorf("KMS 解密失敗: %w", err)
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}
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// Base64 解碼
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plaintext, err := base64.StdEncoding.DecodeString(response.Plaintext)
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if err != nil {
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return "", fmt.Errorf("解碼失敗: %w", err)
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}
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return string(plaintext), nil
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}
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// GenerateDataKey 生成數據密鑰(用於本地加密,KMS 僅管理主密鑰)
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func (m *AliyunKMSManager) GenerateDataKey() (plaintext, ciphertext string, err error) {
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request := kms.CreateGenerateDataKeyRequest()
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request.Scheme = "https"
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request.KeyId = m.keyID
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request.KeySpec = "AES_256" // 256-bit AES 密鑰
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response, err := m.client.GenerateDataKey(request)
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if err != nil {
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return "", "", fmt.Errorf("生成數據密鑰失敗: %w", err)
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}
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// 明文密鑰(用於加密數據)
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plaintextBytes, _ := base64.StdEncoding.DecodeString(response.Plaintext)
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plaintext = string(plaintextBytes)
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// 密文密鑰(保存到數據庫,用於後續解密)
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ciphertext = response.CiphertextBlob
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return plaintext, ciphertext, nil
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}
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// CreateKey 創建新的 KMS 主密鑰(僅管理員操作)
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func (m *AliyunKMSManager) CreateKey(description string) (string, error) {
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request := kms.CreateCreateKeyRequest()
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request.Scheme = "https"
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request.Description = description
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request.KeyUsage = "ENCRYPT/DECRYPT"
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request.Origin = "Aliyun_KMS" // 阿里雲託管
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response, err := m.client.CreateKey(request)
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if err != nil {
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return "", fmt.Errorf("創建 KMS 密鑰失敗: %w", err)
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}
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return response.KeyMetadata.KeyId, nil
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}
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// EnableKeyRotation 啟用自動密鑰輪換(每年自動輪換)
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func (m *AliyunKMSManager) EnableKeyRotation() error {
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request := kms.CreateEnableKeyRotationRequest()
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request.Scheme = "https"
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request.KeyId = m.keyID
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_, err := m.client.EnableKeyRotation(request)
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if err != nil {
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return fmt.Errorf("啟用密鑰輪換失敗: %w", err)
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}
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return nil
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}
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// ==================== 與現有加密系統集成 ====================
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// EncryptionManagerWithKMS 混合加密管理器(本地 + KMS)
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type EncryptionManagerWithKMS struct {
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localEM *EncryptionManager
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kmsEM *AliyunKMSManager
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useKMS bool // 是否使用 KMS
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}
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// NewEncryptionManagerWithKMS 創建混合加密管理器
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func NewEncryptionManagerWithKMS() (*EncryptionManagerWithKMS, error) {
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// 初始化本地加密
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localEM, err := GetEncryptionManager()
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if err != nil {
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return nil, err
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}
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// 嘗試初始化 KMS(如果配置了環境變數)
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kmsEM, err := NewAliyunKMSManager()
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useKMS := err == nil
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if useKMS {
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fmt.Println("✅ 阿里雲 KMS 已啟用")
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} else {
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fmt.Println("⚠️ 阿里雲 KMS 未配置,使用本地加密")
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}
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return &EncryptionManagerWithKMS{
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localEM: localEM,
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kmsEM: kmsEM,
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useKMS: useKMS,
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}, nil
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}
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// EncryptForDatabase 加密數據(自動選擇 KMS 或本地)
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func (m *EncryptionManagerWithKMS) EncryptForDatabase(plaintext string) (string, error) {
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if m.useKMS {
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// 使用 KMS 加密
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encrypted, err := m.kmsEM.Encrypt(plaintext)
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if err != nil {
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// KMS 失敗時降級到本地加密
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fmt.Printf("⚠️ KMS 加密失敗,降級到本地加密: %v\n", err)
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return m.localEM.EncryptForDatabase(plaintext)
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}
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return "kms:" + encrypted, nil // 添加前綴標識
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}
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// 使用本地加密
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return m.localEM.EncryptForDatabase(plaintext)
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}
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// DecryptFromDatabase 解密數據(自動檢測 KMS 或本地)
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func (m *EncryptionManagerWithKMS) DecryptFromDatabase(ciphertext string) (string, error) {
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// 檢測是否為 KMS 加密
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if len(ciphertext) > 4 && ciphertext[:4] == "kms:" {
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if !m.useKMS {
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return "", fmt.Errorf("數據使用 KMS 加密,但 KMS 未配置")
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}
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return m.kmsEM.Decrypt(ciphertext[4:])
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}
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// 本地解密
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return m.localEM.DecryptFromDatabase(ciphertext)
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}
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// MigrateToKMS 將現有本地加密數據遷移到 KMS
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func (m *EncryptionManagerWithKMS) MigrateToKMS(localEncrypted string) (string, error) {
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if !m.useKMS {
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return "", fmt.Errorf("KMS 未啟用")
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}
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// 1. 本地解密
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plaintext, err := m.localEM.DecryptFromDatabase(localEncrypted)
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if err != nil {
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return "", err
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}
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// 2. KMS 加密
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kmsEncrypted, err := m.kmsEM.Encrypt(plaintext)
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if err != nil {
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return "", err
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}
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return "kms:" + kmsEncrypted, nil
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}
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