# **前言**
在日前安全形势越来越严重的情况下,让我意识到在项目中存在一个我们经常忽略的漏洞,那就是我们的项目的配置文件中配置信息的安全,尤其是数据库连接的用户名和密码的安全。所以这里我们就需要对数据库的用户名和密码进行加密,这也是本文的由来。本文采用Jasypt对Spring Boot配置文件加密的相关方法,其实呢,也还有其他方案,具体的会在后面的相关文章中说明。
# **引入jasypt**
```xml
com.github.ulisesbocchio
jasypt-spring-boot-starter
2.0.0
```
# **1.生成要加密的字符串**
## 1.1 将数据库的用户名和密码进行加密
```java
@Test
public void contextLoads() {
BasicTextEncryptor textEncryptor = new BasicTextEncryptor();
//加密所需的salt(盐)
textEncryptor.setPassword("1Qaz0oKm");
//要加密的数据(数据库的用户名或密码)
String username = textEncryptor.encrypt("root");
String password = textEncryptor.encrypt("root");
System.out.println("username:"+username);
System.out.println("password:"+password);
}
```
**输出信息**
```java
username:NZmLHOOHX0SEjc285iG9YQ==
password:1JByM5wu5o+9H1Ba2o++Pg==
2019-06-14 14:55:49.863 INFO 8904 --- [ Thread-3] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService ‘applicationTaskExecutor‘
2019-06-14 14:55:49.863 INFO 8904 --- [ Thread-3] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit ‘default‘
2019-06-14 14:55:49.863 INFO 8904 --- [ Thread-3] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2019-06-14 14:55:49.878 INFO 8904 --- [ Thread-3] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
```
## 1.2. 或者使用Maven下载好的jar包加密\Maven\org\jasypt\jasypt\2.0.0\jasypt-2.0.0.jar
```java
java -cp jasypt-1.9.2.jar org.jasypt.intf.cli.JasyptPBEStringEncryptionCLI password=1Qaz0oKm algorithm=PBEWithMD5AndDES input=root
```
**输出信息**
```java
----ENVIRONMENT-----------------
Runtime: Oracle Corporation Java HotSpot(TM) 64-Bit Server VM 25.171-b11
----ARGUMENTS-------------------
input: root
algorithm: PBEWithMD5AndDES
password: 1Qaz0oKm
----OUTPUT----------------------
NZmLHOOHX0SEjc285iG9YQ==
```
拷贝-OUTPUT-下的结果即可
# **2.配置properties文件**
将生成的加密串配置ENC(加密串)到application.properties中
```xml
server:
port: 8080
spring:
datasource:
url: jdbc:mysql://localhost:3306/test?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=true
username: ENC(GHK23XVFNHoQQ97vIW523Q==)
password: ENC(aTKef0XcG05Cfzao92EqqQ==)
data-username: com.mysql.cj.jdbc.Driver
jpa:
show-sql: true
database-platform: org.hibernate.dialect.MySQL5InnoDBDialect
database: MYSQL
hibernate:
ddl-auto: update
jasypt:
encryptor:
password: 1Qaz0oKm #加密所需的salt(盐)
#algorithm: PBEWithMD5AndDES # 默认加密方式PBEWithMD5AndDES,可以更改为PBEWithMD5AndTripleDES
```
**加密方式对应的类为BasicTextEncryptor和StrongTextEncryptor**
```java
private final StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();
public BasicTextEncryptor() {
this.encryptor.setAlgorithm("PBEWithMD5AndDES");
}
```
```java
private final StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();
public StrongTextEncryptor() {
this.encryptor.setAlgorithm("PBEWithMD5AndTripleDES");
}
```
![图片.png](https://img2018.cnblogs.com/blog/1035487/201908/1035487-20190810225628072-1958209166.png)
# **3.部署时配置salt(盐)值**
**1. 为了防止salt(盐)泄露,反解出密码.可以在项目部署的时候使用命令传入salt(盐)值**
```java
java -jar -Djasypt.encryptor.password=1Qaz0oKm xxx.jar
```
**2. 或者在服务器的环境变量里配置,进一步提高安全性**
```java
打开/etc/profile文件
vim /etc/profile
文件末尾插入
export JASYPT_PASSWORD = G0CvDz7oJn6
编译
source /etc/profile
运行
java -jar -Djasypt.encryptor.password=${JASYPT_PASSWORD} xxx.jar
```
[下面是一个我自己的具体实现:https://github.com/eelve/jasypt,使用Jasypt对数据库用信息加密后,可以成功连接上数据库](https://github.com/eelve/jasypt)
![图片.png](https://img2018.cnblogs.com/blog/1035487/201908/1035487-20190810225628343-77717640.png)
[官方地址:https://github.com/ulisesbocchio/jasypt-spring-boot](https://github.com/ulisesbocchio/jasypt-spring-boot)
原文地址:https://www.cnblogs.com/eelve/p/11333368.html