Experimental polybius square encryption
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polybius-square/header.c

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1.5 KiB

/* header.c
This function is part of the Polysqu program. It provides information
about the program.
Copyright (C) 2015, 2016 Scott C. MacCallum
scm@ma.sdf.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <stdio.h>
void header(void)
{
printf("\n");
printf("Polybius Square\n");
printf("\n");
printf("Encrypt a message with a modified version of the\n");
printf("Polybius Square. WARNING, for educational use only.\n");
printf("Do not use for secure communications.\n");
printf("\n");
printf("Copyright (C) 2015, 2016 Scott C. MacCallum\n");
printf("This program comes with ABSOLUTELY NO WARRANTY\n");
printf("This is free software, and you are welcome to\n");
printf("redistribute it under certain conditions.\n");
printf("See the GNU Affero General Public License,\n");
printf("Version 3 for details.\n");
printf("\n");
}