/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
#include "tomcrypt_private.h"

/**
   @file f8_test_mode.c
   F8 implementation, test, Tom St Denis
*/


#ifdef LTC_F8_MODE

int f8_test_mode(void)
{
#ifndef LTC_TEST
   return CRYPT_NOP;
#else
   static const unsigned char key[16] = { 0x23, 0x48, 0x29, 0x00, 0x84, 0x67, 0xbe, 0x18,
                                          0x6c, 0x3d, 0xe1, 0x4a, 0xae, 0x72, 0xd6, 0x2c };
   static const unsigned char salt[4] = { 0x32, 0xf2, 0x87, 0x0d };
   static const unsigned char IV[16]  = { 0x00, 0x6e, 0x5c, 0xba, 0x50, 0x68, 0x1d, 0xe5,
                                          0x5c, 0x62, 0x15, 0x99, 0xd4, 0x62, 0x56, 0x4a };
   static const unsigned char pt[39]  = { 0x70, 0x73, 0x65, 0x75, 0x64, 0x6f, 0x72, 0x61,
                                          0x6e, 0x64, 0x6f, 0x6d, 0x6e, 0x65, 0x73, 0x73,
                                          0x20, 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20,
                                          0x6e, 0x65, 0x78, 0x74, 0x20, 0x62, 0x65, 0x73,
                                          0x74, 0x20, 0x74, 0x68, 0x69, 0x6e, 0x67       };
   static const unsigned char ct[39]  = { 0x01, 0x9c, 0xe7, 0xa2, 0x6e, 0x78, 0x54, 0x01,
                                          0x4a, 0x63, 0x66, 0xaa, 0x95, 0xd4, 0xee, 0xfd,
                                          0x1a, 0xd4, 0x17, 0x2a, 0x14, 0xf9, 0xfa, 0xf4,
                                          0x55, 0xb7, 0xf1, 0xd4, 0xb6, 0x2b, 0xd0, 0x8f,
                                          0x56, 0x2c, 0x0e, 0xef, 0x7c, 0x48, 0x02       };
   unsigned char buf[39];
   symmetric_F8  f8;
   int           err, idx;

   idx = find_cipher("aes");
   if (idx == -1) {
      idx = find_cipher("rijndael");
      if (idx == -1) return CRYPT_NOP;
   }

   /* initialize the context */
   if ((err = f8_start(idx, IV, key, sizeof(key), salt, sizeof(salt), 0, &f8)) != CRYPT_OK) {
      return err;
   }

   /* encrypt block */
   if ((err = f8_encrypt(pt, buf, sizeof(pt), &f8)) != CRYPT_OK) {
      f8_done(&f8);
      return err;
   }
   f8_done(&f8);

   /* compare */
   if (compare_testvector(buf, sizeof(ct), ct, sizeof(ct), "f8", 0)) {
      return CRYPT_FAIL_TESTVECTOR;
   }

   return CRYPT_OK;
#endif
}

#endif
