Support Forums

Well hackforums.net is down atm and i'm bored. Jus a simple code to let you guys see how to encrypt an entire file and put in in a different file encrypted, which you can then decrypt it. It's not the scantime crypter source code with stub and builder but just the encryption decryption function.

Code:
/// rot 128

int Rot128_FileToFile(char *Filename_In, char *Filename_Out)

{

    FILE *Copy = fopen(Filename_In, "rb");

    FILE *Paste = fopen(Filename_Out, "wb");

    if(!Copy || !Paste)

        return -1;

    int c;

    while((c = fgetc(Copy)) != EOF)

    {

        // works with 128, 120 too weird.

        if(c >= 0 && c <= 127)

            c+=128;

        else c-=128;

        fprintf(Paste, "%c", c);

    }

    fclose(Copy);

    fclose(Paste);

    return 1;

}

Let me know what you guys think.

Looks pretty pimp, dude. As far as complexity, the algorithm isn't very strong, but I like your coding style. Does:

Code:
while((c = fgetc(Copy)) != EOF)

actually work? Using an assignment operator in conjuction with a comparison operator, all as part of a conditional? Never seen that before.

(01-19-2010, 08:10 PM)J4P4NM4N Wrote: [ -> ]Does Using an assignment operator in conjuction with a comparison operator, all as part of a conditional?

It's valid C/C++ so it works fine. It's use can sometimes be frowned upon (the coding standards where I worked disallowed doing it) because it can be troublesome to read when you are scanning code, but it works in this case since it prevents code duplication.

I see. I can also see why it was frowned upon, hehe.

Dimitri

J4P4NM4N

MrD.

J4P4NM4N