問題描述

我正在嘗試運行我的應(yīng)用，但遇到以下錯誤:

I'm trying to run my app but it get stuck with the following error:

System.NotSupportedException HResult=0x80131515 消息=IDX10634:無法創(chuàng)建 SignatureProvider.算法:'[PII 被隱藏默認.將 IdentityModelEventSource.cs 中的ShowPII"標志設(shè)置為 true顯示它.]', SecurityKey: '[PII 默認隱藏.設(shè)置IdentityModelEventSource.cs 中的ShowPII"標志為 true 以顯示它.]'不支持.

System.NotSupportedException HResult=0x80131515 Message=IDX10634: Unable to create the SignatureProvider. Algorithm: '[PII is hidden by default. Set the 'ShowPII' flag in IdentityModelEventSource.cs to true to reveal it.]', SecurityKey: '[PII is hidden by default. Set the 'ShowPII' flag in IdentityModelEventSource.cs to true to reveal it.]' is not supported.

在哪里

算法是RS256

卡在執(zhí)行這條指令:var sectoken = tokenHandler.CreateToken(tokenDescriptor);

這是什么意思?我的代碼出了什么問題?我該如何解決這個問題?

What does it mean? What went wrong in my code? How can I solve this?

這是我的代碼:

using System.Security.Claims;
using System.Text;
using System.Threading.Tasks;
//...
public class TokenManager
{
    private string unencoded_key = "CaptainDeadpool";
    private string encoded_key = "CaptainDeadpool";
//...
    public TokenManager()
    {
        var plainTextBytes = Encoding.UTF8.GetBytes(unencoded_key);
        encoded_key = Convert.ToBase64String(plainTextBytes);
    }


    public string CreateFromUsername(string usr, int? timer)
    {
        if (timer == null) {  timer = 30; }
        double timeadd = Convert.ToDouble(timer);

        var secret = Convert.FromBase64String(encoded_key);
        var tokenHandler = new JwtSecurityTokenHandler();

        var actual = DateTime.UtcNow;

        var tokenDescriptor = new SecurityTokenDescriptor
        {
            Subject = new ClaimsIdentity(new[] { new Claim(ClaimTypes.Name, usr) }),
            Expires = actual.AddMinutes(timeadd),

            SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(secret), SecurityAlgorithms.RsaSha256Signature)
        };

        var sectoken = tokenHandler.CreateToken(tokenDescriptor);
        var stringtoken = tokenHandler.WriteToken(sectoken);

        return stringtoken;
    }
//...

這是我發(fā)出錯誤時的 tokenDescriptor 的內(nèi)容:

Here's my tokenDescriptor's content while issuing the error:

推薦答案

不知道該錯誤消息是什么意思，但我認為沒關(guān)系，因為您的代碼在邏輯上是錯誤的.RSA 是非對稱算法，但您正在嘗試將 SymmetricSecurityKey 與它一起使用.

No idea what that error message means, but it doesn't matter I think, because your code is logically wrong. RSA is assymetric algorithm, but you are trying to use SymmetricSecurityKey with it.

所以要么使用另一種(對稱)簽名算法(并確保您的密鑰大小對此算法有效)，例如:

So either use another (symmetric) signature algorithm (and ensure that your key size is valid for this algorithm), for example:

// adjust key size
private string unencoded_key = "CaptainDeadpool!";
private string encoded_key = "CaptainDeadpool!";
// ...
SigningCredentials = new SigningCredentials(
    new SymmetricSecurityKey(secret), 
    SecurityAlgorithms.HmacSha256Signature)

或者提供有效的密鑰，例如:

Or provide valid key, for example:

private readonly RSA _rsa;
public TokenManager() {
    // import instead of creating new, if necessary
    _rsa = new RSACryptoServiceProvider(2048);            
}
// ...

SigningCredentials = new SigningCredentials(
    new RsaSecurityKey(_rsa), 
    SecurityAlgorithms.RsaSha256Signature)

這篇關(guān)于JWT 錯誤 IDX10634:無法創(chuàng)建 SignatureProvider C#的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！