57 lines
1.6 KiB
C#
57 lines
1.6 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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using UnityEngine;
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public class SignHelper
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{
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/// <summary>
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/// 生成 sign
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/// </summary>
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/// <param name="parameters">请求参数字典（包含所有参数，但要去掉 sign）</param>
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/// <param name="secret">AppSecret</param>
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/// <returns>MD5 sign</returns>
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public static string GetSign(Dictionary<string, object> parameters, string secret)
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{
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// 1. 移除 sign
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if (parameters.ContainsKey("sign"))
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{
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parameters.Remove("sign");
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}
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// 2. 按照 key ASCII 排序
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var sorted = parameters.OrderBy(p => p.Key, StringComparer.Ordinal);
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// 3. 拼接成字符串 key+value
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StringBuilder sb = new StringBuilder();
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foreach (var kv in sorted)
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{
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string valueStr;
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if (kv.Value is Array || kv.Value is List<object>)
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{
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// 数组需要转成 JSON 字符串
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valueStr = JsonUtility.ToJson(kv.Value);
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}
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else
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{
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valueStr = kv.Value.ToString();
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}
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sb.Append(kv.Key).Append(valueStr);
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}
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// 4. 拼接 secret
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sb.Append(secret);
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// 5. 做 MD5 加密
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using (MD5 md5 = MD5.Create())
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{
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byte[] inputBytes = Encoding.UTF8.GetBytes(sb.ToString());
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byte[] hashBytes = md5.ComputeHash(inputBytes);
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// 转换成 32 位小写 hex
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return BitConverter.ToString(hashBytes).Replace("-", "").ToLower();
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}
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}
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} |