Programming Forums - View Single Post

backstabber · Oct 9th, 2006, 1:31 AM

this program is compiled using mingw and borland c++ and it gives a read access violation error (olly debug) when it starts the search for "the"

(Toggle Plain Text)

#include <cstdlib>
#include <iostream>
#include "file.h"
#include "alpha.h"

using namespace std;

int main(int argc, char *argv[])
{
    char fileout[302];
    char key;
    int iter =0;
    for (int w = 0; w < 102; w++)
    {
        key = alpha[w];
    for (int i = 0; i < 302; i++)
    {
        fileout[i] = key ^ file[i];
        }
    for (int f = 0; f < 302; f++)
        {
             iter++;
             if (fileout[iter] == 0x74 && fileout[iter+1] == 0x68 && fileout[iter+2] == 0x65)
             {
                            for (int d = 0; d < 302; d++)
                            {
                                cout << fileout[d];
                            }
             }
        }
}
}

it a little messy but this app pulls a single char from the alpha[] array and xors it with ever char in the file array this is a challenge please only fix the access violation not any thing else and a few hints as to good code production would help
this is an xor brute forcer

Oct 9th, 2006, 1:31 AM	#1
backstabber Newbie Join Date: Oct 2006 Posts: 9 Rep Power: 0	read access violation this program is compiled using mingw and borland c++ and it gives a read access violation error (olly debug) when it starts the search for "the" (Toggle Plain Text) #include <cstdlib> #include <iostream> #include "file.h" #include "alpha.h" using namespace std; int main(int argc, char argv[]) { char fileout[302]; char key; int iter =0; for (int w = 0; w < 102; w++) { key = alpha[w]; for (int i = 0; i < 302; i++) { fileout[i] = key ^ file[i]; } for (int f = 0; f < 302; f++) { iter++; if (fileout[iter] == 0x74 && fileout[iter+1] == 0x68 && fileout[iter+2] == 0x65) { for (int d = 0; d < 302; d++) { cout << fileout[d]; } } } } } #include <cstdlib> #include <iostream> #include "file.h" #include "alpha.h" using namespace std; int main(int argc, char argv[]) { char fileout[302]; char key; int iter =0; for (int w = 0; w < 102; w++) { key = alpha[w]; for (int i = 0; i < 302; i++) { fileout[i] = key ^ file[i]; } for (int f = 0; f < 302; f++) { iter++; if (fileout[iter] == 0x74 && fileout[iter+1] == 0x68 && fileout[iter+2] == 0x65) { for (int d = 0; d < 302; d++) { cout << fileout[d]; } } } } } it a little messy but this app pulls a single char from the alpha[] array and xors it with ever char in the file array this is a challenge please only fix the access violation not any thing else and a few hints as to good code production would help this is an xor brute forcer