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										 |  |  |  | # AES 加密工具包
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							|  |  |  |  | 本包提供了多种加密方式,特别是用于处理敏感个人信息(如手机号、身份证号等)的加密和解密功能。 | 
					
						
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							|  |  |  |  | ## 主要功能
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							|  |  |  |  | -   **AES-CBC 模式加密/解密** - 标准加密模式,适用于一般数据加密 | 
					
						
							|  |  |  |  | -   **AES-ECB 模式加密/解密** - 确定性加密模式,适用于数据库字段加密和查询 | 
					
						
							|  |  |  |  | -   **专门针对个人敏感信息的加密/解密方法** | 
					
						
							|  |  |  |  | -   **密钥生成和管理工具** | 
					
						
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							|  |  |  |  | ## 安全性说明
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							|  |  |  |  | -   **AES-CBC 模式**:使用随机 IV,相同明文每次加密结果不同,安全性较高 | 
					
						
							|  |  |  |  | -   **AES-ECB 模式**:确定性加密,相同明文每次加密结果相同,便于数据库查询,但安全性较低 | 
					
						
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							|  |  |  |  | > **⚠️ 警告**:ECB 模式仅适用于短文本(如手机号、身份证号)的确定性加密,不建议用于加密大段文本或高安全需求场景。
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							|  |  |  |  | ## 使用示例
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							|  |  |  |  | ### 1. 加密手机号
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							|  |  |  |  | 使用 AES-ECB 模式加密手机号,保证确定性(相同手机号总是产生相同密文): | 
					
						
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							|  |  |  |  | ```go | 
					
						
							|  |  |  |  | import ( | 
					
						
							|  |  |  |  |     "fmt" | 
					
						
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										 |  |  |  |     "qnc-server/pkg/lzkit/crypto" | 
					
						
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										 |  |  |  | ) | 
					
						
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							|  |  |  |  | func encryptMobileExample() { | 
					
						
							|  |  |  |  |     // 您的密钥(需安全保存,建议存储在配置中) | 
					
						
							|  |  |  |  |     key := []byte("1234567890abcdef") // 16字节AES-128密钥 | 
					
						
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							|  |  |  |  |     // 加密手机号 | 
					
						
							|  |  |  |  |     mobile := "13800138000" | 
					
						
							|  |  |  |  |     encryptedMobile, err := crypto.EncryptMobile(mobile, key) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         panic(err) | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     fmt.Println("加密后的手机号:", encryptedMobile) | 
					
						
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							|  |  |  |  |     // 解密手机号 | 
					
						
							|  |  |  |  |     decryptedMobile, err := crypto.DecryptMobile(encryptedMobile, key) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         panic(err) | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     fmt.Println("解密后的手机号:", decryptedMobile) | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | ### 2. 在数据库中存储和查询加密手机号
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							|  |  |  |  | ```go | 
					
						
							|  |  |  |  | // 加密并存储手机号 | 
					
						
							|  |  |  |  | func saveUser(db *sqlx.DB, mobile string, key []byte) (int64, error) { | 
					
						
							|  |  |  |  |     encryptedMobile, err := crypto.EncryptMobile(mobile, key) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         return 0, err | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     var id int64 | 
					
						
							|  |  |  |  |     err = db.QueryRow( | 
					
						
							|  |  |  |  |         "INSERT INTO users (mobile, create_time) VALUES (?, NOW()) RETURNING id", | 
					
						
							|  |  |  |  |         encryptedMobile, | 
					
						
							|  |  |  |  |     ).Scan(&id) | 
					
						
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							|  |  |  |  |     return id, err | 
					
						
							|  |  |  |  | } | 
					
						
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							|  |  |  |  | // 根据手机号查询用户 | 
					
						
							|  |  |  |  | func findUserByMobile(db *sqlx.DB, mobile string, key []byte) (*User, error) { | 
					
						
							|  |  |  |  |     encryptedMobile, err := crypto.EncryptMobile(mobile, key) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         return nil, err | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     var user User | 
					
						
							|  |  |  |  |     err = db.QueryRow( | 
					
						
							|  |  |  |  |         "SELECT id, mobile, create_time FROM users WHERE mobile = ?", | 
					
						
							|  |  |  |  |         encryptedMobile, | 
					
						
							|  |  |  |  |     ).Scan(&user.ID, &user.EncryptedMobile, &user.CreateTime) | 
					
						
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							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         return nil, err | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     // 解密手机号用于显示 | 
					
						
							|  |  |  |  |     user.Mobile, _ = crypto.DecryptMobile(user.EncryptedMobile, key) | 
					
						
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							|  |  |  |  |     return &user, nil | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | ### 3. 加密身份证号
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							|  |  |  |  | ```go | 
					
						
							|  |  |  |  | func encryptIDCardExample() { | 
					
						
							|  |  |  |  |     key := []byte("1234567890abcdef") | 
					
						
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							|  |  |  |  |     idCard := "440101199001011234" | 
					
						
							|  |  |  |  |     encryptedIDCard, err := crypto.EncryptIDCard(idCard, key) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         panic(err) | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     fmt.Println("加密后的身份证号:", encryptedIDCard) | 
					
						
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							|  |  |  |  |     // 解密身份证号 | 
					
						
							|  |  |  |  |     decryptedIDCard, err := crypto.DecryptIDCard(encryptedIDCard, key) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         panic(err) | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     fmt.Println("解密后的身份证号:", decryptedIDCard) | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | ### 4. 密钥管理
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							|  |  |  |  | ```go | 
					
						
							|  |  |  |  | func keyManagementExample() { | 
					
						
							|  |  |  |  |     // 生成随机密钥 | 
					
						
							|  |  |  |  |     key, err := crypto.GenerateAESKey(16) // AES-128 | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         panic(err) | 
					
						
							|  |  |  |  |     } | 
					
						
							|  |  |  |  |     fmt.Printf("生成的密钥(十六进制): %x\n", key) | 
					
						
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							|  |  |  |  |     // 从密码派生密钥(便于记忆) | 
					
						
							|  |  |  |  |     password := "my-secure-password" | 
					
						
							|  |  |  |  |     derivedKey, err := crypto.DeriveKeyFromPassword(password, 16) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         panic(err) | 
					
						
							|  |  |  |  |     } | 
					
						
							|  |  |  |  |     fmt.Printf("从密码派生的密钥: %x\n", derivedKey) | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | ### 5. 使用十六进制输出(适用于 URL 参数)
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							|  |  |  |  | ```go | 
					
						
							|  |  |  |  | func hexEncodingExample() { | 
					
						
							|  |  |  |  |     key := []byte("1234567890abcdef") | 
					
						
							|  |  |  |  |     mobile := "13800138000" | 
					
						
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							|  |  |  |  |     // 使用十六进制编码(适合URL参数) | 
					
						
							|  |  |  |  |     encryptedHex, err := crypto.EncryptMobileHex(mobile, key) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         panic(err) | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     fmt.Println("十六进制编码的加密手机号:", encryptedHex) | 
					
						
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							|  |  |  |  |     // 解密十六进制编码的手机号 | 
					
						
							|  |  |  |  |     decryptedMobile, err := crypto.DecryptMobileHex(encryptedHex, key) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         panic(err) | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     fmt.Println("解密后的手机号:", decryptedMobile) | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | ## 在 Go-Zero 项目中使用
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							|  |  |  |  | 在 Go-Zero 项目中,建议将加密密钥放在配置文件中: | 
					
						
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							|  |  |  |  | 1. 在配置文件中添加密钥配置: | 
					
						
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							|  |  |  |  | ```yaml | 
					
						
							|  |  |  |  | # etc/main.yaml
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										 |  |  |  | Name: main-api | 
					
						
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										 |  |  |  | Host: 0.0.0.0 | 
					
						
							|  |  |  |  | Port: 8888 | 
					
						
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							|  |  |  |  | Encrypt: | 
					
						
							|  |  |  |  |     MobileKey: "1234567890abcdef" # 16字节AES-128密钥 | 
					
						
							|  |  |  |  |     IDCardKey: "1234567890abcdef1234567890abcdef" # 32字节AES-256密钥 | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | 2. 在配置结构中定义: | 
					
						
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							|  |  |  |  | ```go | 
					
						
							|  |  |  |  | type Config struct { | 
					
						
							|  |  |  |  |     rest.RestConf | 
					
						
							|  |  |  |  |     Encrypt struct { | 
					
						
							|  |  |  |  |         MobileKey string | 
					
						
							|  |  |  |  |         IDCardKey string | 
					
						
							|  |  |  |  |     } | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | 3. 在服务上下文中使用: | 
					
						
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							|  |  |  |  | ```go | 
					
						
							|  |  |  |  | type ServiceContext struct { | 
					
						
							|  |  |  |  |     Config      config.Config | 
					
						
							|  |  |  |  |     UserModel   model.UserModel | 
					
						
							|  |  |  |  |     MobileKey   []byte | 
					
						
							|  |  |  |  |     IDCardKey   []byte | 
					
						
							|  |  |  |  | } | 
					
						
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							|  |  |  |  | func NewServiceContext(c config.Config) *ServiceContext { | 
					
						
							|  |  |  |  |     return &ServiceContext{ | 
					
						
							|  |  |  |  |         Config:      c, | 
					
						
							|  |  |  |  |         UserModel:   model.NewUserModel(sqlx.NewMysql(c.DB.DataSource), c.Cache), | 
					
						
							|  |  |  |  |         MobileKey:   []byte(c.Encrypt.MobileKey), | 
					
						
							|  |  |  |  |         IDCardKey:   []byte(c.Encrypt.IDCardKey), | 
					
						
							|  |  |  |  |     } | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | 4. 在 Logic 中使用: | 
					
						
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							|  |  |  |  | ```go | 
					
						
							|  |  |  |  | func (l *RegisterLogic) Register(req *types.RegisterReq) (*types.RegisterResp, error) { | 
					
						
							|  |  |  |  |     // 加密手机号用于存储 | 
					
						
							|  |  |  |  |     encryptedMobile, err := crypto.EncryptMobile(req.Mobile, l.svcCtx.MobileKey) | 
					
						
							|  |  |  |  |     if err != nil { | 
					
						
							|  |  |  |  |         return nil, errors.New("手机号加密失败") | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     // 保存到数据库 | 
					
						
							|  |  |  |  |     user := &model.User{ | 
					
						
							|  |  |  |  |         Mobile: encryptedMobile, | 
					
						
							|  |  |  |  |         // 其他字段... | 
					
						
							|  |  |  |  |     } | 
					
						
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							|  |  |  |  |     result, err := l.svcCtx.UserModel.Insert(l.ctx, nil, user) | 
					
						
							|  |  |  |  |     // 其余逻辑... | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ``` |