/* encrypt V1.1 Fri Oct 18 04:28:03 NZDT 2002 */
/* File de/encryption, using libtomcrypt */
/* Written by Daniel Richards <[email protected]> */
/* Help from Tom St Denis with various bits */
/* This code is public domain, no rights reserved. */
/* Encrypts by default, -d flag enables decryption */
/* ie: ./encrypt blowfish story.txt story.ct */
/* ./encrypt -d blowfish story.ct story.pt */

#include <tomcrypt.h>

int errno;

int usage(char *name) 
{
   int x;

   printf("Usage: %s [-d](ecrypt) cipher infile outfile\nCiphers:\n", name);
   for (x = 0; cipher_descriptor[x].name != NULL; x++) {
      printf("%s\n",cipher_descriptor[x].name);
   }
   exit(1);
}

void register_algs(void)
{
   int x;
   
#ifdef RIJNDAEL
  register_cipher (&aes_desc);
#endif
#ifdef BLOWFISH
  register_cipher (&blowfish_desc);
#endif
#ifdef XTEA
  register_cipher (&xtea_desc);
#endif
#ifdef RC5
  register_cipher (&rc5_desc);
#endif
#ifdef RC6
  register_cipher (&rc6_desc);
#endif
#ifdef SAFERP
  register_cipher (&saferp_desc);
#endif
#ifdef TWOFISH
  register_cipher (&twofish_desc);
#endif
#ifdef SAFER
  register_cipher (&safer_k64_desc);
  register_cipher (&safer_sk64_desc);
  register_cipher (&safer_k128_desc);
  register_cipher (&safer_sk128_desc);
#endif
#ifdef RC2
  register_cipher (&rc2_desc);
#endif
#ifdef DES
  register_cipher (&des_desc);
  register_cipher (&des3_desc);
#endif
#ifdef CAST5
  register_cipher (&cast5_desc);
#endif
#ifdef NOEKEON
  register_cipher (&noekeon_desc);
#endif
#ifdef SKIPJACK
  register_cipher (&skipjack_desc);
#endif
#ifdef KHAZAD
  register_cipher (&khazad_desc);
#endif
#ifdef ANUBIS
  register_cipher (&anubis_desc);
#endif

   if (register_hash(&sha256_desc) == -1) {
      printf("Error registering SHA256\n");
      exit(-1);
   } 

   if (register_prng(&yarrow_desc) == -1) {
      printf("Error registering yarrow PRNG\n");
      exit(-1);
   }

   if (register_prng(&sprng_desc) == -1) {
      printf("Error registering sprng PRNG\n");
      exit(-1);