配置脱敏

使用场景

数据库密码直接明文写在application.yml配置中，对安全来说，是一个很大的挑战。一旦密码泄漏，将会带来很大的安全隐患。尤其在一些企业对安全性要求很高，因此我们就考虑如何对密码进行加密。

开源框架Jasypt可以解决上面的问题。

• Jasypt 开源安全框架就是专门用于处理 Spring boot 属性加密的，在配置文件中使用特定格式直接配置密文，然后应用启动的时候，Jasypt 会自动将密码解密成明文供程序使用。

• jasypt 同一个密钥（secretKey）对同一个内容执行加密，每次生成的密文都是不一样的，但是根据根据这些密文解密成原内容都是可以的。

配置脱敏实践

<!--配置文件加密--><dependency><groupId>com.github.ulisesbocchio</groupId><artifactId>jasypt-spring-boot-starter</artifactId><version>2.1.0</version></dependency>

配置文件加入秘钥配置项jasypt.encryptor.password，并将需要脱敏的value值替换成预先经过加密的内容ENC(zxcvb/asdfg)。

这个格式我们是可以随意定义的，比如想要abc[zxcvb/asdfg]格式，只要配置前缀和后缀即可。

jasypt:encryptor:property:prefix: "abc["suffix: "]"

ENC(XXX）格式主要为了便于识别该值是否需要解密，如不按照该格式配置，在加载配置项的时候jasypt将保持原值，不进行解密。

spring:datasource:driver-class-name: com.mysql.cj.jdbc.Drivertype: com.alibaba.druid.pool.DruidDataSourceurl: jdbc:mysql://localhost:3306/order_db_1?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTCusername: rootpassword: ENC(ipHBo9hH/W756iU3HjAZJA==)
# 秘钥
jasypt:encryptor:password: csdn

预先生成的加密值，可以通过代码内调用API生成

@Autowired
private StringEncryptor stringEncryptor;@GetMapping("/encode")
public String encrypt(String content) {String encryptStr = stringEncryptor.encrypt(content);System.out.println("加密后的内容：" + encryptStr);return "加密后的内容：" + encryptStr;
}

数据脱敏

生产环境用户的隐私数据，比如手机号、身份证或者一些账号配置等信息，入库时都要进行不落地脱敏，也就是在进入我们系统时就要实时的脱敏处理。

用户数据进入系统，脱敏处理后持久化到数据库，用户查询数据时还要进行反向解密。这种场景一般需要全局处理，那么用AOP切面来实现在适合不过了。

首先自定义两个注解@EncryptField、@EncryptMethod分别用在字段属性和方法上，实现思路很简单，只要方法上应用到@EncryptMethod注解，则检查入参字段是否标注@EncryptField注解，有则将对应字段内容加密。

pom

<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-aop</artifactId></dependency><dependency><groupId>com.github.ulisesbocchio</groupId><artifactId>jasypt-spring-boot-starter</artifactId><version>2.1.0</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency>
</dependencies>

yml

# 秘钥
jasypt:encryptor:password: csdn

EncryptMethod

@Documented
@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface EncryptMethod {String type() default EncryptConstant.ENCRYPT;
}

EncryptField

@Documented
@Target({ElementType.FIELD,ElementType.PARAMETER})
@Retention(RetentionPolicy.RUNTIME)
public @interface EncryptField {String[] value() default "";
}

EncryptConstant

public interface EncryptConstant {// 加密String ENCRYPT = "encrypt";// 解密String DECRYPT = "decrypt";
}

EncryptHandler

@Slf4j
@Aspect
@Component
public class EncryptHandler {@Autowiredprivate StringEncryptor stringEncryptor;@Pointcut("@annotation(cn.zysheep.annotation.EncryptMethod)")public void pointCut() {}@Around("pointCut()")public Object around(ProceedingJoinPoint joinPoint) {/*** 加密*/Object[] encrypt = encrypt(joinPoint);/*** 解密*/Object decrypt = decrypt(joinPoint,encrypt);return decrypt;}public Object[] encrypt(ProceedingJoinPoint joinPoint) {Object[] args = joinPoint.getArgs();try {if (args.length != 0) {for (int i = 0; i < args.length; i++) {Object o = args[i];if (o instanceof String) {args[i] = encryptValue(o);} else {args[i] = handler(o, EncryptConstant.ENCRYPT);}//TODO 其余类型自己看实际情况加}}} catch (IllegalAccessException e) {e.printStackTrace();}return args;}public Object decrypt(ProceedingJoinPoint joinPoint,Object[] args) {Object result = null;try {Object obj = joinPoint.proceed(args);if (obj != null) {if (obj instanceof String) {result = decryptValue(obj);} else {result = handler(obj, EncryptConstant.DECRYPT);}//TODO 其余类型自己看实际情况加}} catch (Throwable e) {e.printStackTrace();}return result;}private Object handler(Object obj, String type) throws IllegalAccessException {if (Objects.isNull(obj)) {return null;}Field[] fields = obj.getClass().getDeclaredFields();for (Field field : fields) {boolean annotationPresent = field.isAnnotationPresent(EncryptField.class);if (annotationPresent) {field.setAccessible(true);String value;String realValue = (String) field.get(obj);if (EncryptConstant.DECRYPT.equals(type)) {value = stringEncryptor.decrypt(realValue);} else {value = stringEncryptor.encrypt(realValue);}field.set(obj, value);}}return obj;}public String encryptValue(Object realValue) {String value = null;try {value = stringEncryptor.encrypt(String.valueOf(realValue));} catch (Exception ex) {return value;}return value;}public String decryptValue(Object realValue) {String value = String.valueOf(realValue);try {value = stringEncryptor.decrypt(value);} catch (Exception ex) {return value;}return value;}
}

Person

@Data
public class Person {private Integer id;@EncryptFieldprivate String mobile;@EncryptFieldprivate String address;private Integer age;private BigDecimal wages;
}

JasyptApplication

@RestController
@SpringBootApplication
public class JasyptApplication {@Autowiredprivate StringEncryptor stringEncryptor;public static void main(String[] args) {SpringApplication.run(JasyptApplication.class, args);}@GetMapping("/encode")public String encrypt(String content) {String encryptStr = stringEncryptor.encrypt(content);System.out.println("加密后的内容：" + encryptStr);return "加密后的内容：" + encryptStr;}@EncryptMethod@PostMapping("/dataEnc")public Person encrypt(@RequestBody Person person, @EncryptField String username) throws JsonProcessingException {ObjectMapper json = new ObjectMapper();String writeValueAsString = json.writeValueAsString(person);System.out.println(writeValueAsString);System.out.println(username);return person;}@EncryptMethod@GetMapping("/getParam")public String getParam( @EncryptField String username) {System.out.println("保存数据库业务操作===>username: "+username);return username;}
}