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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namespace AlibabaSDK.Setting
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{
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public class AlibabaPlatHelper
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{
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/// <summary>
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/// 验签，防篡改
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/// </summary>
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/// <param name="message"></param>
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/// <param name="_aop_signature"></param>
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/// <returns></returns>
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public static bool MsgCheckSign(string message, string aop_signature)
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{
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string tmp = $"message{message}";
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byte[] signatureKey = Encoding.UTF8.GetBytes(AlibabaApiSet.SignKey);
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HMACSHA1 hmacsha1 = new HMACSHA1(signatureKey);
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byte[] hashBytes = hmacsha1.ComputeHash(Encoding.UTF8.GetBytes(tmp));
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byte[] hash = hmacsha1.Hash;
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//TO HEX
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string sign = BitConverter.ToString(hashBytes).Replace("-", "").ToUpper();
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return sign == aop_signature;
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}
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}
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}
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