0xc0000005 when starting exe

[dAnieL_dE]

Hello,

i am running a Programm with QT and Crypto++ included.

I try to run following Code and get 0xc0000005 when trying to run it:

// g++ -g3 -ggdb -O0 -DDEBUG -I/usr/include/cryptopp Driver.cpp -o Driver.exe -lcryptopp -lpthread
// g++ -g -O2 -DNDEBUG -I/usr/include/cryptopp Driver.cpp -o Driver.exe -lcryptopp -lpthread
 
 
#define CRYPTOPP_DEFAULT_NO_DLL
#include "cryptopp/dll.h"
#ifdef CRYPTOPP_WIN32_AVAILABLE
#include <windows.h>
#endif
 
#include "cryptopp/osrng.h"
using CryptoPP::AutoSeededRandomPool;
 
#include <iostream>
using std::cout;
using std::cerr;
using std::endl;
 
#include <string>
using std::string;
 
#include <cstdlib>
using std::exit;
 
#include "cryptopp/cryptlib.h"
using CryptoPP::Exception;
 
#include "cryptopp/hex.h"
using CryptoPP::HexEncoder;
using CryptoPP::HexDecoder;
 
#include "cryptopp/filters.h"
using CryptoPP::StringSink;
using CryptoPP::StringSource;
using CryptoPP::StreamTransformationFilter;
 
#include "cryptopp/aes.h"
using CryptoPP::AES;
 
#include "cryptopp/modes.h"
using CryptoPP::CFB_Mode;
 
int main(int argc, char *argv[])
{
	AutoSeededRandomPool prng;
 
	byte key[AES::DEFAULT_KEYLENGTH];
	prng.GenerateBlock(key, sizeof(key));
 
	byte iv[AES::BLOCKSIZE];
	prng.GenerateBlock(iv, sizeof(iv));
 
	string plain = "CFB Mode Test";
	string cipher, encoded, recovered;
 
	/*********************************\
	\*********************************/
 
	// Pretty print key
	encoded.clear();
	StringSource(key, sizeof(key), true,
		new HexEncoder(
			new StringSink(encoded)
		) // HexEncoder
	); // StringSource
	cout << "key: " << encoded << endl;
 
	// Pretty print iv
	encoded.clear();
	StringSource(iv, sizeof(iv), true,
		new HexEncoder(
			new StringSink(encoded)
		) // HexEncoder
	); // StringSource
	cout << "iv: " << encoded << endl;
 
	/*********************************\
	\*********************************/
 
	try
	{
		cout << "plain text: " << plain << endl;
 
		CFB_Mode< AES >::Encryption e;
		e.SetKeyWithIV(key, sizeof(key), iv);
 
		// CFB mode must not use padding. Specifying
		//  a scheme will result in an exception
		StringSource(plain, true,
			new StreamTransformationFilter(e,
				new StringSink(cipher)
			) // StreamTransformationFilter
		); // StringSource
	}
	catch(const CryptoPP::Exception& e)
	{
		cerr << e.what() << endl;
		exit(1);
	}
 
	/*********************************\
	\*********************************/
 
	// Pretty print
	encoded.clear();
	StringSource(cipher, true,
		new HexEncoder(
			new StringSink(encoded)
		) // HexEncoder
	); // StringSource
	cout << "cipher text: " << encoded << endl;
 
	/*********************************\
	\*********************************/
 
	try
	{
		CFB_Mode< AES >::Decryption d;
		d.SetKeyWithIV(key, sizeof(key), iv);
 
		// The StreamTransformationFilter removes
		//  padding as required.
		StringSource s(cipher, true,
			new StreamTransformationFilter(d,
				new StringSink(recovered)
			) // StreamTransformationFilter
		); // StringSource
 
		cout << "recovered text: " << recovered << endl;
	}
	catch(const CryptoPP::Exception& e)
	{
		cerr << e.what() << endl;
		exit(1);
	}
 
	/*********************************\
	\*********************************/
 
	return 0;
}

// g++ -g3 -ggdb -O0 -DDEBUG -I/usr/include/cryptopp Driver.cpp -o Driver.exe -lcryptopp -lpthread
// g++ -g -O2 -DNDEBUG -I/usr/include/cryptopp Driver.cpp -o Driver.exe -lcryptopp -lpthread


#define CRYPTOPP_DEFAULT_NO_DLL
#include "cryptopp/dll.h"
#ifdef CRYPTOPP_WIN32_AVAILABLE
#include <windows.h>
#endif

#include "cryptopp/osrng.h"
using CryptoPP::AutoSeededRandomPool;

#include <iostream>
using std::cout;
using std::cerr;
using std::endl;

#include <string>
using std::string;

#include <cstdlib>
using std::exit;

#include "cryptopp/cryptlib.h"
using CryptoPP::Exception;

#include "cryptopp/hex.h"
using CryptoPP::HexEncoder;
using CryptoPP::HexDecoder;

#include "cryptopp/filters.h"
using CryptoPP::StringSink;
using CryptoPP::StringSource;
using CryptoPP::StreamTransformationFilter;

#include "cryptopp/aes.h"
using CryptoPP::AES;

#include "cryptopp/modes.h"
using CryptoPP::CFB_Mode;

int main(int argc, char *argv[])
{
	AutoSeededRandomPool prng;

	byte key[AES::DEFAULT_KEYLENGTH];
	prng.GenerateBlock(key, sizeof(key));

	byte iv[AES::BLOCKSIZE];
	prng.GenerateBlock(iv, sizeof(iv));

	string plain = "CFB Mode Test";
	string cipher, encoded, recovered;

	/*********************************\
	\*********************************/

	// Pretty print key
	encoded.clear();
	StringSource(key, sizeof(key), true,
		new HexEncoder(
			new StringSink(encoded)
		) // HexEncoder
	); // StringSource
	cout << "key: " << encoded << endl;

	// Pretty print iv
	encoded.clear();
	StringSource(iv, sizeof(iv), true,
		new HexEncoder(
			new StringSink(encoded)
		) // HexEncoder
	); // StringSource
	cout << "iv: " << encoded << endl;

	/*********************************\
	\*********************************/

	try
	{
		cout << "plain text: " << plain << endl;

		CFB_Mode< AES >::Encryption e;
		e.SetKeyWithIV(key, sizeof(key), iv);

		// CFB mode must not use padding. Specifying
		//  a scheme will result in an exception
		StringSource(plain, true,
			new StreamTransformationFilter(e,
				new StringSink(cipher)
			) // StreamTransformationFilter
		); // StringSource
	}
	catch(const CryptoPP::Exception& e)
	{
		cerr << e.what() << endl;
		exit(1);
	}

	/*********************************\
	\*********************************/

	// Pretty print
	encoded.clear();
	StringSource(cipher, true,
		new HexEncoder(
			new StringSink(encoded)
		) // HexEncoder
	); // StringSource
	cout << "cipher text: " << encoded << endl;

	/*********************************\
	\*********************************/

	try
	{
		CFB_Mode< AES >::Decryption d;
		d.SetKeyWithIV(key, sizeof(key), iv);

		// The StreamTransformationFilter removes
		//  padding as required.
		StringSource s(cipher, true,
			new StreamTransformationFilter(d,
				new StringSink(recovered)
			) // StreamTransformationFilter
		); // StringSource

		cout << "recovered text: " << recovered << endl;
	}
	catch(const CryptoPP::Exception& e)
	{
		cerr << e.what() << endl;
		exit(1);
	}

	/*********************************\
	\*********************************/

	return 0;
}

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I read that its a dll Problem but i cant get along.

I Compiled Crypto++ with this.

Hope you can help me.

Thx!

[pkj]

Have you copied the requisite crypto++ dll's against which you are linking into the application directory?

[amleto]

00005 doesnt sound like a dll problem - more likely a dodgy pointer ime.

have you debugged it? what is the call stack? what line is the exception from?