MD5加密和Bcrypt加密

分手后的思念是犯贱 2022-04-03 09:49 356阅读 0赞

### 一、MD5加密 ###

//引入包
    import org.springframework.util.DigestUtils;
    
    @Controller
    @RequestMapping("/resetpwd")
    public class ResetpwdController { 
    	@RequestMapping("/resetpassword")
    	@ResponseBody
    	public int resetpassword(Member member, String username, String pwd) { 
    		//加密
    		pwd = DigestUtils.md5DigestAsHex(pwd.getBytes());
    		member.setPassword(pwd);
    		int i = memberService.resetPasswordByUsername(member, username);
    		return i;
    	}
    }

### 二、Bcrypt加密 ###

由于现在彩虹表的出现，使得即使不可逆的MD5加密也变得伪可逆（大数据存储，然后查询）,所以采用更为安全的Bcrypt加密。

#### jar包下载 ####

百度云 [https://pan.baidu.com/s/1RU2ptA6uq4LrRuFqUhZ5bw][https_pan.baidu.com_s_1RU2ptA6uq4LrRuFqUhZ5bw]  
maven存储库 [https://mvnrepository.com/artifact/org.mindrot/jbcrypt][https_mvnrepository.com_artifact_org.mindrot_jbcrypt]

#### pom.xml ####

<dependency>
        <groupId>org.mindrot</groupId>
        <artifactId>jbcrypt</artifactId>
        <version>0.4</version>
    </dependency>

package test;
    
    import org.mindrot.jbcrypt.BCrypt;
    
    public class Test1 { 
    
    	public static void main(String[] args) { 
    		String password = "123456";//$2a$10$GRS6nKF9Fp6ie7Vkj4KHI.LBQZDhzgQ2OcIu8sI90ucaL/wJ0D7He
    		//加密
    		String pwt = BCrypt.hashpw(password, BCrypt.gensalt());
    		//解密
    		boolean pswFlag = BCrypt.checkpw(password,"$2a$10$GRS6nKF9Fp6ie7Vkj4KHI.LBQZDhzgQ2OcIu8sI90ucaL/wJ0D7He");
    
    		System.out.println(pwt+"===="+pswFlag);
    	}
    
    }

实验效果：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3Nzk2MDE3_size_16_color_FFFFFF_t_70]

[https_pan.baidu.com_s_1RU2ptA6uq4LrRuFqUhZ5bw]: https://pan.baidu.com/s/1RU2ptA6uq4LrRuFqUhZ5bw
[https_mvnrepository.com_artifact_org.mindrot_jbcrypt]: https://mvnrepository.com/artifact/org.mindrot/jbcrypt
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3Nzk2MDE3_size_16_color_FFFFFF_t_70]: /images/20220403/dbe9590eeff64a1b9fd687e516b5340f.png