#include <botan/botan.h>
#include <botan/pbkdf2.h>
#include <botan/hmac.h>
#include <botan/sha160.h>

...

	void DoBotan()
	{   
		using namespace Botan;
		try{
			LibraryInitializer init;
			
	        AutoSeeded_RNG rng;

	        std::auto_ptr<S2K> s2k(get_s2k("PBKDF2(SHA-1)"));
	        s2k->set_iterations(8192);
	        s2k->new_random_salt(rng, 8);
	
	        SymmetricKey key = s2k->derive_key(16, "TEST");
	
			std::string alg = "AES/CBC/PKCS7";
			Pipe enc(get_cipher(alg, key, ENCRYPTION), new Hex_Encoder);
			Pipe dec(new Hex_Decoder, get_cipher(alg, key, DECRYPTION));
			String secret = ToUtf8(txtIn.GetText());
			enc.process_msg(secret);
			String cipher = enc.read_all_as_string();
			dec.process_msg(cipher);
			String bubu = dec.read_all_as_string();
			
			PromptOK(bubu);
		}
		catch (std::exception se)
		{
			String err;
			err << "Error \n" << se.what();
			PromptOK(err);
		}
	}