C# 版本的解密方法：  private static string ALGORITHM = "AES/GCM/NoPadding";  private static int TAG_LENGTH_BIT = 128;  private static int NONCE_LENGTH_BYTE = 12;  private static string AES_KEY = API_KEY; //youkeyhere  public static string AesGcmDecrypt(string associatedData, string nonce, string ciphertext)  {      GcmBlockCipher gcmBlockCipher = new GcmBlockCipher(new AesEngine());      AeadParameters aeadParameters = new AeadParameters(          new KeyParameter(Encoding.UTF8.GetBytes(AES_KEY)),          128,          Encoding.UTF8.GetBytes(nonce),          Encoding.UTF8.GetBytes(associatedData));      gcmBlockCipher.Init(false, aeadParameters);      byte[] data = Convert.FromBase64String(ciphertext);      byte[] plaintext = new byte[gcmBlockCipher.GetOutputSize(data.Length)];      int length = gcmBlockCipher.ProcessBytes(data, 0, data.Length, plaintext, 0);      return Encoding.UTF8.GetString(plaintext);  }

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果然很腾讯，2022-09-06