using System.IO;
using System.Security.Cryptography;

[Attribute0(typeof(Attribute0.Class5<object>[]))]
private static byte[] smethod_17(byte[] byte_4)
{
	while (false)
	{
		object obj = ((object[])null)[0];
	}
	MemoryStream memoryStream = new MemoryStream();
	SymmetricAlgorithm symmetricAlgorithm = smethod_7();
	symmetricAlgorithm.Key = new byte[32]
	{
		84,
		223,
		196,
		137,
		181,
		120,
		8,
		226,
		113,
		163,
		147,
		147,
		207,
		190,
		112,
		181,
		82,
		13,
		110,
		102,
		30,
		80,
		78,
		62,
		204,
		33,
		29,
		107,
		215,
		198,
		186,
		220
	};
	symmetricAlgorithm.IV = new byte[16]
	{
		115,
		105,
		58,
		176,
		234,
		210,
		100,
		112,
		197,
		78,
		113,
		142,
		66,
		190,
		52,
		222
	};
	CryptoStream cryptoStream = new CryptoStream(memoryStream, symmetricAlgorithm.CreateDecryptor(), CryptoStreamMode.Write);
	cryptoStream.Write(byte_4, 0, byte_4.Length);
	cryptoStream.Close();
	return memoryStream.ToArray();
}