ClassLibraryWeiBao/weixinlib/ClassSignture.cs

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using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Web.Security;

namespace ClassLibraryWeiBao.weixinlib
{

    /// <summary>
    /// 微信接口验证
    /// </summary>
    public class ClassSignture
    { 

        /// <summary>
        /// 检查加密签名是否一致
        /// </summary>
        /// <param name="signature">微信加密签名</param>
        /// <param name="timestamp">时间戳</param>
        /// <param name="nonce">随机数</param>
        /// <returns></returns>
        public static bool CheckSignature(string signature, string timestamp, string nonce, string WeiXinToken)
        {
            List<string> stringList = new List<string> { WeiXinToken, timestamp, nonce };
            // 字典排序
            stringList.Sort();
            return Sha1Encrypt(string.Join("", stringList)) == signature;
        }

 

        /// <summary>
        /// 对字符串SHA1加密
        /// </summary>
        /// <param name="targetString">源字符串</param>
        /// <returns>加密后的十六进制字符串</returns>
        private static string Sha1Encrypt(string targetString)
        {
            byte[] byteArray = Encoding.Default.GetBytes(targetString);
            HashAlgorithm hashAlgorithm = new SHA1CryptoServiceProvider();
            byteArray = hashAlgorithm.ComputeHash(byteArray);
            StringBuilder stringBuilder = new StringBuilder();
            foreach (byte item in byteArray)
            {
                stringBuilder.AppendFormat("{0:x2}", item);
            }
            return stringBuilder.ToString();
        }

   
        /// <summary>
        /// 根据加密类型对字符串SHA1加密
        /// </summary>
        /// <param name="targetString">源字符串</param>
        /// <param name="encryptType">加密类型：MD5/SHA1</param>
        /// <returns>加密后的字符串</returns>
        private static string Sha1Encrypt(string targetString, string encryptType)