問題描述

我只是在使用 Asp.Net Core Web API 并實現身份驗證.我正在從 Angular 應用程序調用這個 API.但我總是收到如下錯誤.

I was just working with Asp.Net Core Web API, and implementing Authentication. And I am calling this API from an Angular Application. But I am always getting an error as below.

IDX10603:算法:HS256"要求 SecurityKey.KeySize 大于128"位.KeySize 報告:'32'.參數名稱:key.KeySize

IDX10603: The algorithm: 'HS256' requires the SecurityKey.KeySize to be greater than '128' bits. KeySize reported: '32'. Parameter name: key.KeySize

以下是我在 Startup.cs 文件中的 ConfigureServices 代碼.

Below is my code for ConfigureServices in Startup.cs file.

public IServiceProvider ConfigureServices(IServiceCollection services)
            {
                services.AddDbContext<APIContext>(option => option.UseInMemoryDatabase("AngularApp"));

                services.AddCors(options => options.AddPolicy("Cors", builder =>
                {
                    builder.AllowAnyOrigin().
                    AllowAnyMethod().
                    AllowAnyHeader();
                }
                ));

                var signinKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes("Secret phase"));

                services.AddAuthentication(options =>
                {
                    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
                    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
                }).AddJwtBearer(cfg =>
                {
                    cfg.RequireHttpsMetadata = false;
                    cfg.SaveToken = true;
                    cfg.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.TokenValidationParameters()
                    {
                        IssuerSigningKey = signinKey,
                        ValidateAudience = false,
                        ValidateIssuer = false,
                        ValidateLifetime = false,
                        ValidateIssuerSigningKey = true,
                        ValidateActor = false,
                        ClockSkew = TimeSpan.Zero
                    };
                });
                services.AddMvc();

                var serviceProvider = services.BuildServiceProvider();
                return serviceProvider;
            }

我在我的控制器中使用 JwtPackage，如下所示.

And I am using JwtPackagein my controller as follows.

JwtPackage CreateJwtToken(User usr)
        {
            var signinKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes("this is my custom Secret key for authnetication"));
            var signInCredentials = new SigningCredentials(signinKey, SecurityAlgorithms.HmacSha256);
            var claims = new Claim[] {
                new Claim(JwtRegisteredClaimNames.Sub,usr.Id)
            };
            var jwt = new JwtSecurityToken(claims: claims, signingCredentials: signInCredentials);
            var encodedJwt = new JwtSecurityTokenHandler().WriteToken(jwt);
            return new JwtPackage() { FirstName = usr.FirstName, Token = encodedJwt };
        }

你能幫我解決這個問題嗎?謝謝.

Can you please help me to fix this issue? Thank you.

推薦答案

啊，這是我的錯誤，一個簡單的錯誤.我沒有為密鑰名稱提供足夠的字符.

Ah, it was my mistake, a simple one. I was not providing enough characters for the secret key name.

我把我的登錄密鑰改成了這個，

I changed my signinkey to this one,

var signinKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes("this is my custom Secret key for authnetication"));

來自，

var signinKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes("Secret phase"));

這解決了我的問題，因為 SigningCredentials(signinKey, SecurityAlgorithms.HmacSha256) 行中的 HmacSha256 應該大于 128 位.總之，只要用一個長字符串作為key就行了.

That solved my issue, as the HmacSha256 in the line SigningCredentials(signinKey, SecurityAlgorithms.HmacSha256)should be greater than 128 bits. In short, just use a long string as the key.

這篇關于IDX10603:算法:“HS256"要求 SecurityKey.KeySize 大于“128"位.KeySize 報告:'32'.參數名稱:key.KeySize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！