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About Cracking - Printable Version

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About Cracking - ozgurti - 05-25-2017

Hello everyone,
I looked at the forum rules and I think it is not problem to ask my question. I just wonder that I can use specific algorithm with hashcat or not?

I write the dcryption c# code below. 'b5961257cyT5e3' salt string and I don't remember the secretPass and I gotta decrpyt some data.
I wrote a simple software for bruteforce but it is really very slow.

So, I want to ask that I am able to use hashcat for my problem or any idea about how I can solve my problem?

Thank you to all for your answer in advance.

public static string Dec(string CipheredText, string SecretPass)

           RijndaelManaged managedRjdl = new RijndaelManaged();
               Rfc2898DeriveBytes bytes = new Rfc2898DeriveBytes(SecretPass, Encoding.ASCII.GetBytes("b5961257cyT5e3"));
               managedRjdl.Key = bytes.GetBytes(managedRjdl.KeySize / 8);
               managedRjdl.IV = bytes.GetBytes(managedRjdl.BlockSize / 8);
               ICryptoTransform transformCrypto = managedRjdl.CreateDecryptor(managedRjdl.Key, managedRjdl.IV);
               using (MemoryStream streamM = new MemoryStream(Convert.FromBase64String(CipheredText)))
                   using (CryptoStream streamC = new CryptoStream(streamM, transformCrypto, CryptoStreamMode.Read))
                       using (StreamReader reader = new StreamReader(streamC))
                           return reader.ReadToEnd();

RE: About Cracking - atom - 05-26-2017

There's no AES known plaintext attack module and unless the keyspace is largely decreased by some very good password "hint" it's not possible to crack the key based on it.