JWT-RS256非对称加密NET CORE（一）

概要

对于JWT-对称加密和非对称加密，看了好多文章，基本上很少写到基于AspNetCore实现RS256非对称加密，在本人的GitHub上有代码示例，nuget上也可以安装。

示例下载

JWT相关基础知识，对称加密和非对称加密不太了解的朋友，网上自己去搜学习吧，在这里就不多赘述了。

 1. ** github ** ，https://github.com/Realjing/JwtBearerExtension
 2. ** nuget ** ，Install-Package AspNetCore.Authentication.JwtBearer.Extension -Version 1.0.1

调用说明

1.Startup.cs文件：

  public void ConfigureServices(IServiceCollection services)
        {          
	        //... 
            services.Configure<JwtPolicyConfiguration>(Configuration.GetSection(nameof(JwtPolicyConfiguration)));
            services.AddSingleton<IPolicyAuthorizationHandler, JwtPolicyAuthorizationHandler>();
             //...           
        }

2.ApiController.cs文件中:

         [Route("api/v1/auth")]
    public class TestsController : ControllerBase
    {
        private readonly IPolicyAuthorizationHandler _jwtHandler;
        public TestsController(IPolicyAuthorizationHandler jwtHandler)
        {
            _jwtHandler = jwtHandler;
        }

        [HttpPost]
        [Route("token")]
        //[ProducesResponseType(typeof(string), Status200OK)]
        public IActionResult GenerateJwt()
        {
            var claims = new JwtPolicyClaims
            {
                UserName = "jack",
                Roles = "administrator"
            };
            var jwt = _jwtHandler.BuildToken(claims);
            return Ok(jwt);
        }

        [HttpPost]
        [Route("token/valid")]
        //[ProducesResponseType(typeof(string), Status200OK)]
        public IActionResult ValidJwt([FromBody] Req req)
        {
            string msg;
            if (!_jwtHandler.ValidToken(req.Token, out msg))
                return BadRequest(msg);
            var handler = new JwtSecurityTokenHandler();
            var jwtToken = handler.ReadToken(req.Token) as JwtSecurityToken;
            var claims = new JwtPolicyClaims
            {
                UserName = jwtToken.Claims.First(claim => claim.Type == "UserName").Value,
                Roles = jwtToken.Claims.First(claim => claim.Type == "Roles").Value
            };
            return Ok(claims);
        }

    }

3.appsettings.json文件：

 "JwtPolicyConfiguration": {
    "Issuer": "system",
    "Audience": "everyone",
    "Expire_in": 1.0, //hour
    "PrivateKey": "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",
    "PublicKey": "MIIBCgKCAQEAxjuDg9PRCSMysOfg+E2wR9vBTuYIUrjVFNBvEKI1llD7fyyaKKvAa8+vrqSbmL9f0h1t90CCuP6MhZstfP7BsRRJK6QIIKL5uWYUhegLTttG+XCEMpRyqE7oSUh1xiLy6hkSoIScgVEItNdiQ2umDUv0HYp74nBN+gxdEQl/y+HdtdP5OrxcfLQNjggbahkrc/CgX52Ryt/u8qUJ5CRoMPulj+gKZi0pJZx/Qx+CKs5TMH0eXWiLHghFb1ckKBvtEWVWO6SRYHHsGvoWL3PVmRQCV8wd4Muzc/HjG1DT7ot4DSX8siIrKy8zWBoYOXlcSUPndhmlFX/FmdHX0cptsQIDAQAB"
  }