shiro模拟md5散列算法

shiro里面有许多加密的算法md5，base64

public class UserRealm extends AuthorizingRealm {

    @Override
    public String getName() {
        return "userReam";
    }
//    获取身份认证信息

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        String userName =(String) token.getPrincipal();
//        模拟数据库找密码
        String psw="1234";
//        通过加密算法迭代两次，并且加盐的密码
        Md5Hash md5Hash=new Md5Hash(psw,"lishuai",2);
        SimpleAuthenticationInfo info=new SimpleAuthenticationInfo(userName,md5Hash.toString(), ByteSource.Util.bytes("lishuai"),getName());
        return info;
    }

    //获取授权信息
    @Override

    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        return null;
    }

}

还需要配置迭代的次数，使用的名称

[main]
userRealm= UserRealm
credentialsMatcher=org.apache.shiro.authc.credential.HashedCredentialsMatcher
credentialsMatcher.hashAlgorithmName=md5
credentialsMatcher.hashIterations=2
securityManager.realm=$userRealm
userRealm.credentialsMatcher=$credentialsMatcher