使用Bcrypt加密InMemoryAuthentication密码

Question

在对UserDetailsService的自定义实现使用Bcrypt之前，我首先想看看是否可以在内存数据库中使用它。

package com.patrick.Security;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

@EnableWebSecurity
@Configuration
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    private UserDetailsService userDetailsService;


    @Autowired
    public WebSecurityConfig(UserDetailsService userDetailsService) {
        this.userDetailsService = userDetailsService;
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable().authorizeRequests()
                .antMatchers("/").permitAll()
                .antMatchers(HttpMethod.POST, "/login").permitAll()
                .antMatchers(HttpMethod.POST, "/users").hasAuthority("ADMIN")
                .antMatchers(HttpMethod.POST, "/shifts").hasAnyAuthority("ADMIN", "SUPERVISOR")
                .anyRequest().authenticated()
                .and()
                .addFilter(new AuthenticationFilter(authenticationManager()))
                .addFilter(new AuthorizationFilter(authenticationManager()));
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication().passwordEncoder(passwordEncoder())
                .withUser("admin").password("password").roles("ADMIN");
    }

    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }
}

创建/公开PasswordEncoder bean时，会弹出此警告，最终阻止我访问登录路径：

o.s.s.c.bcrypt.BCryptPasswordEncoder     : Encoded password does not look like BCrypt

添加不推荐使用的NoOpPasswordEncoder将暂时解决此问题，但显然不会对密码进行编码：

@SuppressWarnings("deprecation")
@Bean
public static NoOpPasswordEncoder passwordEncoder() {
return (NoOpPasswordEncoder) NoOpPasswordEncoder.getInstance();
}

添加Bcrypt的正确方法是什么？

Answer 1

使用Spring Security 5，您可以使用选定的PasswordEncoder的id作为密码的前缀。如果您想使用普通密码，只需使用{noop}前缀，这将把密码编码器委托给NoOpPasswordEncoder。

示例代码：

@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
   auth.inMemoryAuthentication()
          .withUser("admin").password("{noop}password").roles("ADMIN");
}

Answer 2

创建/公开PasswordEncoder bean时，会弹出此警告，最终阻止我访问登录路径：

o.s.s.c.bcrypt.BCryptPasswordEncoder     : Encoded password does not look like BCrypt

这是因为您提供的密码没有使用BCrypt编码。与其直接将"密码"作为密码传递，不如首先对其进行编码。

出于测试目的，一种简单的方法是只需掌握密码编码器，并在如下配置方法中对其进行编码

@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    String password = passwordEncoder().encode("password");
    auth.inMemoryAuthentication().withUser("admin").password(password).roles("ADMIN");
}

@Bean
public PasswordEncoder passwordEncoder() {
    return new BCryptPasswordEncoder();
}