85 lines
2.8 KiB
C#
85 lines
2.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Security.Cryptography;
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using System.Text;
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using System.Linq;
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namespace PaymentSDK
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{
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/// 签名验证类
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/// </summary>
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public class CheckSignature
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{
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/// <summary>
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/// 在网站没有提供Token（或传入为null）的情况下的默认Token，建议在网站中进行配置。
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/// </summary>
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public const string Token = "weixin";
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/// <summary>
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/// 检查签名是否正确
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/// </summary>
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/// <param name="signature"></param>
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/// <param name="postModel">需要提供：Timestamp、Nonce、Token</param>
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/// <returns></returns>
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public static bool Check(string signature, PostModel postModel)
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{
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return Check(signature, postModel.Timestamp, postModel.Nonce, postModel.Token);
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}
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/// <summary>
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/// 检查签名是否正确
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/// </summary>
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/// <param name="signature"></param>
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/// <param name="timestamp"></param>
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/// <param name="nonce"></param>
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/// <param name="token"></param>
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/// <returns></returns>
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public static bool Check(string signature, string timestamp, string nonce, string token = null)
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{
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return signature == GetSignature(timestamp, nonce, token);
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}
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/// <summary>
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/// 返回正确的签名
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/// </summary>
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/// <param name="postModel">需要提供：Timestamp、Nonce、Token</param>
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/// <returns></returns>
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public static string GetSignature(PostModel postModel)
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{
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return GetSignature(postModel.Timestamp, postModel.Nonce, postModel.Token);
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}
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/// <summary>
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/// 返回正确的签名
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/// </summary>
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/// <param name="timestamp"></param>
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/// <param name="nonce"></param>
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/// <param name="token"></param>
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/// <returns></returns>
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public static string GetSignature(string timestamp, string nonce, string token = null)
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{
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token = token ?? Token;
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var arr = new[] { token, timestamp, nonce }.OrderBy(z => z).ToArray();
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var arrString = string.Join("", arr);
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//var enText = FormsAuthentication.HashPasswordForStoringInConfigFile(arrString, "SHA1");//使用System.Web.Security程序集
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var sha1 = SHA1.Create();
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var sha1Arr = sha1.ComputeHash(Encoding.UTF8.GetBytes(arrString));
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StringBuilder enText = new StringBuilder();
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foreach (var b in sha1Arr)
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{
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enText.AppendFormat("{0:x2}", b);
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}
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return enText.ToString();
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}
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}
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public class PostModel
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{
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public string Timestamp { get; set; }
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public string Nonce { get; set; }
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public string Token { get; set; }
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}
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}
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