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OS/2 Shareware BBS: 10 Tools
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REGIT.C
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C/C++ Source or Header
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1997-07-05
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2KB
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52 lines
/* +++Date last modified: 05-Jul-1997 */
/*************************************************************************
REGIT.C - A very simple registration key generator. Uses simple XOR
manipulations of a string to create a key.
It is NOT foolproof, but it will work.
Donated to the Public Domain by Craig Morrison 12 May 1994, use,
abuse, fold, spindle or mutilate anyway you see fit.
*************************************************************************/
#include "regkey.h"
/*************************************************************************
REGIT accepts one argument on the command line; The string you want
to use to generate a key from. It outputs the generated key in both
decimal and hexadecimal form. Spaces in the argument should have the
'_' character used in their place, they get translated below.
*************************************************************************/
int main(int argc, char *argv[])
{
long keyval = (long)XOR_PRIME;
long key;
char *p;
char buf[128];
if (argc>1)
{
strcpy(buf, argv[1]);
p = buf;
while(*p)
{
if (*p=='_')
*p = ' ';
key = (long) toupper(*p);
key ^= (long)XOR_CRYPT;
keyval ^= key;
p++;
}
keyval ^= (long)XOR_POST_CRYPT;
printf("Key value = %08lX hex, %lu decimal.\n", keyval, keyval);
}
return 0;
}