JWT令牌与System.IdentityModel.tokens.JWT版本5.1.4

我使用以下代码生成JWT令牌

        string audienceId = "099153c2625149bc8ecb3e85e03f0022";
        string secretKey = "IxrAjDoa2FqElO7IhrSrUJELhUckePEPVpaePlS_Xaw";
        var keyByteArray = TextEncodings.Base64Url.Decode(secretKey);

        var issued = data.Properties.IssuedUtc;
        var expires = data.Properties.ExpiresUtc;

        IList<Claim> claimCollection = new List<Claim>
        {
            new Claim(ClaimTypes.Name, "Test")
            , new Claim(ClaimTypes.Country, "Sweden")
            , new Claim(ClaimTypes.Gender, "M")
            , new Claim(ClaimTypes.Surname, "Nemes")
            , new Claim(ClaimTypes.Email, "hello@me.com")
            , new Claim(ClaimTypes.Role, "IT")
        };

        var tokenDescriptor = new SecurityTokenDescriptor
        {
            Subject =  new ClaimsIdentity(claimCollection),
            Issuer = _issuer,
            Audience = audienceId,
            Expires = expires.Value.DateTime,
            SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(keyByteArray), SecurityAlgorithms.HmacSha256)
        };
        var tokenHandler = new JwtSecurityTokenHandler();

        var securityToken = tokenHandler.CreateToken(tokenDescriptor);
        return tokenHandler.WriteToken(securityToken);`

我收到异常作为无效签名。 最新版本的System.IdentityModel.Tokens.Jwt（版本5.1.4）提供的文档非常少。请注意，我不能降级的dll以及

---

我不确定我会错在哪里。非常感谢您在这方面的帮助。

请按照Iris的建议，尝试使用不同的解码器进行验证

我的场景是我有一个ASP.NET JWT AuthorizationServer，需要通过ASPNET CORE JWT ResourceServer进行身份验证，下面的代码对我有效

public static class Base64UrlTextEncoder /*: ITextEncoder*/
    {
        public static string Encode(byte[] data)
        {
            if (data == null)
            {
                throw new ArgumentNullException("data");
            }

            return Convert.ToBase64String(data).TrimEnd('=').Replace('+', '-').Replace('/', '_');
        }

        public static byte[] Decode(string text)
        {
            if (text == null)
            {
                throw new ArgumentNullException("text");
            }

            return Convert.FromBase64String(Pad(text.Replace('-', '+').Replace('_', '/')));
        }

        private static string Pad(string text)
        {
            var padding = 3 - ((text.Length + 3) % 4);
            if (padding == 0)
            {
                return text;
            }
            return text + new string('=', padding);
        }
    }

用法

public static class Base64UrlTextEncoder /*: ITextEncoder*/
    {
        public static string Encode(byte[] data)
        {
            if (data == null)
            {
                throw new ArgumentNullException("data");
            }

            return Convert.ToBase64String(data).TrimEnd('=').Replace('+', '-').Replace('/', '_');
        }

        public static byte[] Decode(string text)
        {
            if (text == null)
            {
                throw new ArgumentNullException("text");
            }

            return Convert.FromBase64String(Pad(text.Replace('-', '+').Replace('_', '/')));
        }

        private static string Pad(string text)
        {
            var padding = 3 - ((text.Length + 3) % 4);
            if (padding == 0)
            {
                return text;
            }
            return text + new string('=', padding);
        }
    }

var base64key = Base64UrlTextEncoder.Decode("IxrAjDoa2FqElO7IhrSrUJELhUckePEPVpaePlS_Xaw");
var issuerSigningKey = new SymmetricSecurityKey(base64key);