88 lines
3.2 KiB
C#
88 lines
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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namespace EastChanger
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{
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public static class SignUtil
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{
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/// <summary>
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/// sign生成
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/// </summary>
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/// <param name="paramsMap"></param>
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/// <param name="secret"></param>
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/// <returns></returns>
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public static string BuildSign(Dictionary<string, object> paramsMap, string secret)
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{
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//var keySet = paramsMap.Keys;
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List<string> paramNames = paramsMap.Keys.ToList();
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paramNames.Sort();
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StringBuilder paramNameValue = new StringBuilder();
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foreach (var paramName in paramNames)
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{
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paramNameValue.Append(paramName).Append(paramsMap[paramName]);
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}
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string source = secret + paramNameValue.ToString() + secret;
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return ToMD5(source);
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}
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/// <summary>
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/// MD加密
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/// </summary>
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/// <param name="message"></param>
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/// <returns></returns>
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public static string ToMD5(string message)
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{
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try
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{
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// 1 创建一个提供信息摘要算法的对象，初始化为md5算法对象
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MD5 md5 = new MD5CryptoServiceProvider();
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// 2 将消息变成byte数组
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byte[] input = Encoding.UTF8.GetBytes(message);
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// 3 计算后获得字节数组,这就是那128位了
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byte[] buff = md5.ComputeHash(input);
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// 4 把数组每一字节（一个字节占八位）换成16进制连成md5字符串
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return Byte2hex(buff);
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}
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catch (Exception e)
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{
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throw e;
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}
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}
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private static string Byte2hex(byte[] bytes)
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{
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//创建一个StringBuilder对象来存储最终的结果
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StringBuilder sign = new StringBuilder();
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//使用for循环遍历字节数组中的每个字节
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for (int i = 0; i < bytes.Length; i++)
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{
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// 将字节强制转换为整数，并对其进行位运算，即保留后八位的值，并转换为十六进制形式的字符串
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string hex = bytes[i].ToString("x2");
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// 如果转换后的字符串长度为1，即只有1位，则在前面添加一个0，以保证每个字节都是两位十六进制数
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if (hex.Length == 1)
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{
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sign.Append("0");
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}
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// 将转换后的字符串追加到StringBuilder对象中，并转换为大写形式
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sign.Append(hex.ToUpper());
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}
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return sign.ToString();
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}
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public static string UrlEncode(string str)
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{
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StringBuilder sb = new StringBuilder();
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byte[] byStr = System.Text.Encoding.UTF8.GetBytes(str); //默认是System.Text.Encoding.Default.GetBytes(str)
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for (int i = 0; i < byStr.Length; i++)
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{
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sb.Append(@"%" + Convert.ToString(byStr[i], 16));
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}
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return (sb.ToString());
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}
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}
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}
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