Конвертировать криптофункцию C# в PHP / C# .NET

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Здравствуйте, помогите пожалуйста написать аналог кода с языка С# на PHP

public string method_82(string string_1)
{
byte[] rgbKey = Jss.Solutions.Nands.API.Utils.StringToByteArray("64573e1037d9dc28d19e6019f16b6292f66502e0aaa3bbcc");
byte[] rgbIV = Jss.Solutions.Nands.API.Utils.StringToByteArray("4794bbf9684b429e");
byte[] buffer = Jss.Solutions.Nands.API.Utils.StringToByteArray(string_1);
MemoryStream memoryStream = new MemoryStream(buffer);
TripleDESCryptoServiceProvider cryptoServiceProvider = new TripleDESCryptoServiceProvider();
cryptoServiceProvider.Padding = PaddingMode.Zeros;
Jss.Solutions.Nands.API.Utils.ByteArrayToString(cryptoServiceProvider.Key);
Jss.Solutions.Nands.API.Utils.ByteArrayToString(cryptoServiceProvider.IV);
CryptoStream cryptoStream = new CryptoStream((Stream) memoryStream, cryptoServiceProvider.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Read);
byte[] numArray = new byte[buffer.Length];
int count = cryptoStream.Read(numArray, 0, numArray.Length);
cryptoStream.Close();
memoryStream.Close();
return Encoding.GetEncoding(1251).GetString(numArray, 0, count);
}
 
public string method_83(string string_1)
{
byte[] rgbKey = Jss.Solutions.Nands.API.Utils.StringToByteArray("64573e1037d9dc28d19e6019f16b6292f66502e0aaa3bbcc");
byte[] rgbIV = Jss.Solutions.Nands.API.Utils.StringToByteArray("4794bbf9684b429e");
MemoryStream memoryStream = new MemoryStream();
TripleDESCryptoServiceProvider cryptoServiceProvider = new TripleDESCryptoServiceProvider();
cryptoServiceProvider.Padding = PaddingMode.Zeros;
CryptoStream cryptoStream = new CryptoStream((Stream) memoryStream, cryptoServiceProvider.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
byte[] bytes = Encoding.GetEncoding(1251).GetBytes(string_1);
cryptoStream.Write(bytes, 0, bytes.Length);
cryptoStream.FlushFinalBlock();
byte[] array = memoryStream.ToArray();
cryptoStream.Close();
memoryStream.Close();
return Jss.Solutions.Nands.API.Utils.ByteArrayToString(array);
}