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view libtomcrypt/src/encauth/ocb/ocb_test.c @ 1653:76189c9ffea2

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External Public-Key Authentication API (#72) * Implemented dynamic loading of an external plug-in shared library to delegate public key authentication * Moved conditional compilation of the plugin infrastructure into the configure.ac script to be able to add -ldl to dropbear build only when the flag is enabled * Added tags file to the ignore list * Updated API to have the constructor to return function pointers in the pliugin instance. Added support for passing user name to the checkpubkey function. Added options to the session returned by the plugin and have dropbear to parse and process them * Added -rdynamic to the linker flags when EPKA is enabled * Changed the API to pass a previously created session to the checkPubKey function (created during preauth) * Added documentation to the API * Added parameter addrstring to plugin creation function * Modified the API to retrieve the auth options. Instead of having them as field of the EPKASession struct, they are stored internally (plugin-dependent) in the plugin/session and retrieved through a pointer to a function (in the session) * Changed option string to be a simple char * instead of unsigned char *
author fabriziobertocci <fabriziobertocci@gmail.com>
date Wed, 15 May 2019 09:43:57 -0400
parents 6dba84798cd5
children
line wrap: on
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis
 *
 * LibTomCrypt is a library that provides various cryptographic
 * algorithms in a highly modular and flexible manner.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 */

/**
   @file ocb_test.c
   OCB implementation, self-test by Tom St Denis
*/
#include "tomcrypt.h"

#ifdef LTC_OCB_MODE

/**
  Test the OCB protocol
  @return   CRYPT_OK if successful
*/
int ocb_test(void)
{
#ifndef LTC_TEST
   return CRYPT_NOP;
#else
   static const struct {
         int ptlen;
         unsigned char key[16], nonce[16], pt[34], ct[34], tag[16];
   } tests[] = {

   /* OCB-AES-128-0B */
{
   0,
   /* key */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
   /* nonce */
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
   /* pt */
   { 0 },
   /* ct */
   { 0 },
   /* tag */
   { 0x15, 0xd3, 0x7d, 0xd7, 0xc8, 0x90, 0xd5, 0xd6,
     0xac, 0xab, 0x92, 0x7b, 0xc0, 0xdc, 0x60, 0xee },
},


   /* OCB-AES-128-3B */
{
   3,
   /* key */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
   /* nonce */
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
   /* pt */
   { 0x00, 0x01, 0x02 },
   /* ct */
   { 0xfc, 0xd3, 0x7d },
   /* tag */
   { 0x02, 0x25, 0x47, 0x39, 0xa5, 0xe3, 0x56, 0x5a,
     0xe2, 0xdc, 0xd6, 0x2c, 0x65, 0x97, 0x46, 0xba },
},

   /* OCB-AES-128-16B */
{
   16,
   /* key */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
   /* nonce */
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
   /* pt */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
   /* ct */
   { 0x37, 0xdf, 0x8c, 0xe1, 0x5b, 0x48, 0x9b, 0xf3,
     0x1d, 0x0f, 0xc4, 0x4d, 0xa1, 0xfa, 0xf6, 0xd6 },
   /* tag */
   { 0xdf, 0xb7, 0x63, 0xeb, 0xdb, 0x5f, 0x0e, 0x71,
     0x9c, 0x7b, 0x41, 0x61, 0x80, 0x80, 0x04, 0xdf },
},

   /* OCB-AES-128-20B  */
{
   20,
   /* key */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
   /* nonce */
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
   /* pt */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
     0x10, 0x11, 0x12, 0x13 },
   /* ct */
   { 0x01, 0xa0, 0x75, 0xf0, 0xd8, 0x15, 0xb1, 0xa4,
     0xe9, 0xc8, 0x81, 0xa1, 0xbc, 0xff, 0xc3, 0xeb,
     0x70, 0x03, 0xeb, 0x55},
   /* tag */
   { 0x75, 0x30, 0x84, 0x14, 0x4e, 0xb6, 0x3b, 0x77,
     0x0b, 0x06, 0x3c, 0x2e, 0x23, 0xcd, 0xa0, 0xbb },
},

   /* OCB-AES-128-32B  */
{
   32,
   /* key */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
   /* nonce */
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
   /* pt */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
     0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
     0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
   /* ct */
   { 0x01, 0xa0, 0x75, 0xf0, 0xd8, 0x15, 0xb1, 0xa4,
     0xe9, 0xc8, 0x81, 0xa1, 0xbc, 0xff, 0xc3, 0xeb,
     0x4a, 0xfc, 0xbb, 0x7f, 0xed, 0xc0, 0x8c, 0xa8,
     0x65, 0x4c, 0x6d, 0x30, 0x4d, 0x16, 0x12, 0xfa },

   /* tag */
   { 0xc1, 0x4c, 0xbf, 0x2c, 0x1a, 0x1f, 0x1c, 0x3c,
     0x13, 0x7e, 0xad, 0xea, 0x1f, 0x2f, 0x2f, 0xcf },
},

   /* OCB-AES-128-34B  */
{
   34,
   /* key */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
   /* nonce */
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
   /* pt */
   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
     0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
     0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
     0x20, 0x21 },
   /* ct */
   { 0x01, 0xa0, 0x75, 0xf0, 0xd8, 0x15, 0xb1, 0xa4,
     0xe9, 0xc8, 0x81, 0xa1, 0xbc, 0xff, 0xc3, 0xeb,
     0xd4, 0x90, 0x3d, 0xd0, 0x02, 0x5b, 0xa4, 0xaa,
     0x83, 0x7c, 0x74, 0xf1, 0x21, 0xb0, 0x26, 0x0f,
     0xa9, 0x5d },

   /* tag */
   { 0xcf, 0x83, 0x41, 0xbb, 0x10, 0x82, 0x0c, 0xcf,
     0x14, 0xbd, 0xec, 0x56, 0xb8, 0xd7, 0xd6, 0xab },
},

};

   int err, x, idx, res;
   unsigned long len;
   unsigned char outct[MAXBLOCKSIZE], outtag[MAXBLOCKSIZE];

    /* AES can be under rijndael or aes... try to find it */
    if ((idx = find_cipher("aes")) == -1) {
       if ((idx = find_cipher("rijndael")) == -1) {
          return CRYPT_NOP;
       }
    }

    for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) {
        len = sizeof(outtag);
        if ((err = ocb_encrypt_authenticate_memory(idx, tests[x].key, 16,
             tests[x].nonce, tests[x].pt, tests[x].ptlen, outct, outtag, &len)) != CRYPT_OK) {
           return err;
        }

        if (compare_testvector(outtag, len, tests[x].tag, sizeof(tests[x].tag), "OCB Tag", x) ||
              compare_testvector(outct, tests[x].ptlen, tests[x].ct, tests[x].ptlen, "OCB CT", x)) {
           return CRYPT_FAIL_TESTVECTOR;
        }

        if ((err = ocb_decrypt_verify_memory(idx, tests[x].key, 16, tests[x].nonce, outct, tests[x].ptlen,
             outct, tests[x].tag, len, &res)) != CRYPT_OK) {
           return err;
        }
        if ((res != 1) || compare_testvector(outct, tests[x].ptlen, tests[x].pt, tests[x].ptlen, "OCB", x)) {
#ifdef LTC_TEST_DBG
           printf("\n\nOCB: Failure-decrypt - res = %d\n", res);
#endif
           return CRYPT_FAIL_TESTVECTOR;
        }
    }
    return CRYPT_OK;
#endif /* LTC_TEST */
}

#endif /* LTC_OCB_MODE */


/* some comments

   -- it's hard to seek
   -- hard to stream [you can't emit ciphertext until full block]
   -- The setup is somewhat complicated...
*/

/* ref:         $Format:%D$ */
/* git commit:  $Format:%H$ */
/* commit time: $Format:%ai$ */