Shiro加密

本篇博客学习如何用Shiro进行对密码进行加密。

根据 https://blog.csdn.net/weixin_42236165/article/details/93200432 本篇博客进行改进实现。

Shiro散列配置

HashedCredentialsMatcher

自定义Realm中使用散列

盐的使用

HashedCredentialsMatcher

1.修改CustomRealm类
代码入下：

package com.imooc.shiro.realm;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.crypto.hash.Md5Hash;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

/**
 *
 * @author 宋政宏
 * @date 2019-06-21 15:57
 */
public class CustomRealm extends AuthorizingRealm {

    Map userMap = new HashMap<>(16);
    {
        userMap.put("Mark","e10adc3949ba59abbe56e057f20f883e");

        super.setName("customRealm");
    }
    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {

        String userName = (String) principalCollection.getPrimaryPrincipal();
        //从数据库或者缓存中获取角色数据
        Set roles = getRolesByUserName(userName);
        //从数据库或者缓存中获取权限数据
        Set permissions = getPermissionsByUserName(userName);
        SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
        simpleAuthorizationInfo.setStringPermissions(permissions);
        simpleAuthorizationInfo.setRoles(roles);

        return simpleAuthorizationInfo;
    }

    private Set getPermissionsByUserName(String userName) {
        Set sets = new HashSet<>();
        sets.add("user:delete");
        sets.add("user:add");
        return sets;
    }

    /**
     *
     * @param userName
     * @return
     */
    private Set getRolesByUserName(String userName) {
        Set sets = new HashSet<>();
        sets.add("admin");
        sets.add("user");
        return sets;
    }

    //认证
    //AuthenticationToken认证信息
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {

        //1.从主体传过来的认证信息中，获得用户名
        String userName = (String) authenticationToken.getPrincipal();

        //2.通过用户名到数据库中获取凭证
        String password = getPasswordByUserName(userName);
        if(password == null){
            return null;
        }
        SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo("Mark",password,"customRealm");
        return authenticationInfo;
    }
    /**
     * 模拟数据库查询凭证
     * @param userName
     * @return
     */
    private String getPasswordByUserName(String userName){
        return userMap.get(userName);
    }

    public static void main(String [] args){
        Md5Hash md5Hash = new Md5Hash("123456");
        System.out.println(md5Hash.toString());
    }
}

添加了加密方法

   public static void main(String [] args){
        Md5Hash md5Hash = new Md5Hash("123456");
        System.out.println(md5Hash.toString());
    }

运行
生成123456的加密结果e10adc3949ba59abbe56e057f20f883e

将123456替换为e10adc3949ba59abbe56e057f20f883e

2.修改CustomRealmTest类
代码如下

package com.imooc.test;

import com.imooc.shiro.realm.CustomRealm;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
import org.apache.shiro.mgt.DefaultSecurityManager;
import org.apache.shiro.subject.Subject;
import org.junit.Test;

/**
 *
 * @author 宋政宏
 * @date 2019-06-21 16:13
 */
public class CustomRealmTest {
    @Test
    public void testAuthentication(){

        CustomRealm customRealm = new CustomRealm();

        //1.构建SecurityManager环境
        DefaultSecurityManager defaultSecurityManager = new DefaultSecurityManager();
        defaultSecurityManager.setRealm(customRealm);

        HashedCredentialsMatcher matcher = new HashedCredentialsMatcher();
        //设置加密算法的名称
        matcher.setHashAlgorithmName("md5");
        //设置加密次数
        matcher.setHashIterations(1);

        customRealm.setCredentialsMatcher(matcher);

        //2.主体提交认证请求
        SecurityUtils.setSecurityManager(defaultSecurityManager);
        Subject subject = SecurityUtils.getSubject();

        UsernamePasswordToken token = new UsernamePasswordToken("Mark","123456");
        subject.login(token);

        System.out.println("isAuthenticated："+ subject.isAuthenticated());

     /*   //验证角色
        subject.checkRole("admin");

        //验证权限
        subject.checkPermission("user:update");*/
     /*subject.checkRole("admin");

     subject.checkPermissions("user:add","user:delete");*/
    }
}

运行测试

成功！

盐的使用

1.修改CustomRealm类
代码如下:

package com.imooc.shiro.realm;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.crypto.hash.Md5Hash;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

/**
 *
 * @author 宋政宏
 * @date 2019-06-21 15:57
 */
public class CustomRealm extends AuthorizingRealm {

    Map userMap = new HashMap<>(16);
    {
        userMap.put("Mark","283538989cef48f3d7d8a1c1bdf2008f");

        super.setName("customRealm");
    }
    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {

        String userName = (String) principalCollection.getPrimaryPrincipal();
        //从数据库或者缓存中获取角色数据
        Set roles = getRolesByUserName(userName);
        //从数据库或者缓存中获取权限数据
        Set permissions = getPermissionsByUserName(userName);
        SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
        simpleAuthorizationInfo.setStringPermissions(permissions);
        simpleAuthorizationInfo.setRoles(roles);

        return simpleAuthorizationInfo;
    }

    private Set getPermissionsByUserName(String userName) {
        Set sets = new HashSet<>();
        sets.add("user:delete");
        sets.add("user:add");
        return sets;
    }

    /**
     *
     * @param userName
     * @return
     */
    private Set getRolesByUserName(String userName) {
        Set sets = new HashSet<>();
        sets.add("admin");
        sets.add("user");
        return sets;
    }

    //认证
    //AuthenticationToken认证信息
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {

        //1.从主体传过来的认证信息中，获得用户名
        String userName = (String) authenticationToken.getPrincipal();

        //2.通过用户名到数据库中获取凭证
        String password = getPasswordByUserName(userName);
        if(password == null){
            return null;
        }
        SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo("Mark",password,"customRealm");
       //设置盐
        authenticationInfo.setCredentialsSalt(ByteSource.Util.bytes("Mark"));
        return authenticationInfo;
    }
    /**
     * 模拟数据库查询凭证
     * @param userName
     * @return
     */
    private String getPasswordByUserName(String userName){
        return userMap.get(userName);
    }

    //加密方法
    public static void main(String [] args){
        Md5Hash md5Hash = new Md5Hash("123456","Mark");
        System.out.println(md5Hash.toString());
    }
}

修改加密方法

 public static void main(String [] args){
        Md5Hash md5Hash = new Md5Hash("123456","Mark");
        System.out.println(md5Hash.toString());
    }

运行

为283538989cef48f3d7d8a1c1bdf2008f

把盐设置进去

修改认证方法doGetAuthenticationInfo
设置盐

//设置盐
        authenticationInfo.setCredentialsSalt(ByteSource.Util.bytes("Mark"));

运行CustomRealmTest测试类

成功