如何使用带有签名证书的 C# JWT 包解码 JWT

Question

我正在调用 ADFS 以使用 OAuth 授权代码授予获取访问令牌。我正在以

的形式取回访问令牌

{"access_token":"eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dC...."
 "token_type":"bearer",
 "expires":3600}

现在，我正在复制 access_token 值并将其粘贴到 https://jwt.io 它解码完美，但签名无效。

Header 为 Jwt.io returns:

{
"typ": "JWT",
"alg": "RS256",
"x5t": "eQKi04zWoOV3eLmNNBrI2_rbqSY"
}

我有如下所示的 pem 令牌签名证书：

-----BEGIN CERTIFICATE-----
MIIG0zCCBbugAwIBAgIKUJvNQgAAAAANxTA...
BgNVBAcTBEtlbnQxJjAkBgNVBAoTHVR...
-----END CERTIFICATE-----

现在，如何使用 System.IdentityModel.Tokens.Jwt 或任何其他方法通过证书验证令牌。

请帮助。

Answer 1

经过大量研究，我找到了答案。将其张贴在这里，以便对其他人有所帮助。

  string token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1.."
  var tokenHandler = new JwtSecurityTokenHandler();
//Read Token for Getting the User Details
  var parsedJwt = tokenHandler.ReadToken(token) as JwtSecurityToken; 

//Create A Certificate Object that will read the .CER/.PEM/.CRT file as String
 X509Certificate2 clientCertificate = new X509Certificate2(Encoding.UTF8.GetBytes(CertficationString));

 var certToken = new X509SecurityToken(clientCertificate);

 var validationParameters = new TokenValidationParameters()
    {   
        IssuerSigningToken = certToken,
        ValidAudience = audience,
        ValidIssuer = issuer,
        ValidateLifetime = true,
        ValidateAudience = true,
        ValidateIssuer = true,
        ValidateIssuerSigningKey = true
    };


    try
    {
       SecurityToken validatedToken;
       var principal = tokenHandler.ValidateToken(token, validationParameters, out validatedToken);

    }
    catch (Exception err)
    {

        Console.WriteLine("{0}\n {1}", err.Message, err.StackTrace);
    }

如何使用带有签名证书的 C# JWT 包解码 JWT

How to decode a JWT using C# JWT Package with Signing Certificate

c#

oauth

jwt

adfs3.0