.Net核心HttpClient摘要身份验证

using System;
using System.Net.Http;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        using (HttpClient client = new HttpClient())
        {
            string username = "your_username";
            string password = "your_password";
            
            // 构造认证头部
            var authHeader = new System.Net.Http.Headers.AuthenticationHeaderValue("Digest",
                GenerateDigestCredentials(username, password));

            client.DefaultRequestHeaders.Authorization = authHeader;

            // 发送请求
            HttpResponseMessage response = await client.GetAsync("https://api.example.com/resource");

            // 处理响应
            string responseBody = await response.Content.ReadAsStringAsync();
            Console.WriteLine(responseBody);
        }
    }

    // 生成摘要身份验证凭据
    static string GenerateDigestCredentials(string username, string password)
    {
        // 这里可以使用相应的摘要哈希算法对用户名和密码进行加密
        string encryptedCredentials = EncryptCredentials(username, password);

        // 构造摘要身份验证凭据字符串
        string credentials = string.Format("username=\"{0}\", realm=\"\", nonce=\"\", uri=\"\", response=\"{1}\"",
            username, encryptedCredentials);

        return credentials;
    }

    // 使用相应的摘要哈希算法对用户名和密码进行加密
    static string EncryptCredentials(string username, string password)
    {
        // 在实际开发中，需要根据摘要哈希算法的要求进行具体的加密操作
        // 这里仅作示例，假设使用MD5哈希算法
        string encrypted = CalculateMD5Hash($"{username}:{password}");

        return encrypted;
    }

    // 计算MD5哈希值
    static string CalculateMD5Hash(string input)
    {
        // 在实际开发中，应使用合适的MD5哈希算法库来计算哈希值
        // 这里仅作示例
        using (var md5 = System.Security.Cryptography.MD5.Create())
        {
            byte[] inputBytes = System.Text.Encoding.UTF8.GetBytes(input);
            byte[] hashBytes = md5.ComputeHash(inputBytes);
            return BitConverter.ToString(hashBytes).Replace("-", "").ToLower();
        }
    }
}