ceph/src/crypto/isa-l/isa-l_crypto/aes/xts_256_expanded_key_test.c

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   2   Copyright(c) 2011-2016 Intel Corporation All rights reserved.
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  28 **********************************************************************/
  29
  30 #include <stdlib.h>
  31 #include <stdio.h>
  32 #include <aes_keyexp.h>
  33 #include "xts_256_vect.h"
  34
  35 int main(void)
  36 {
  37
  38         // Temporary array for the calculated vectors
  39         uint8_t *ct_test;
  40         uint8_t *pt_test;
  41         // Arrays for expanded keys, null_key is a dummy vector (decrypt key not
  42         // needed for the tweak part of the decryption)
  43         uint8_t expkey1_enc[16 * 15], expkey2_enc[16 * 15];
  44         uint8_t expkey1_dec[16 * 15], null_key[16 * 15];
  45
  46         int i, j;
  47
  48         // --- Encryption test ---
  49
  50         // Loop over the vectors
  51         for (i = 0; i < NVEC; i++) {
  52
  53                 // Allocate space for the calculated ciphertext
  54                 ct_test = malloc(vlist[i].ptlen);
  55                 if (ct_test == NULL) {
  56                         printf("Can't allocate ciphertext memory\n");
  57                         return -1;
  58                 }
  59                 // Pre-expand our keys (will only use the encryption ones here)
  60                 aes_keyexp_256(vlist[i].key1, expkey1_enc, expkey1_dec);
  61                 aes_keyexp_256(vlist[i].key2, expkey2_enc, null_key);
  62
  63                 XTS_AES_256_enc_expanded_key(expkey2_enc, expkey1_enc, vlist[i].TW,
  64                                              vlist[i].ptlen, vlist[i].PTX, ct_test);
  65
  66                 // Carry out comparison of the calculated ciphertext with
  67                 // the reference
  68                 for (j = 0; j < vlist[i].ptlen; j++) {
  69
  70                         if (ct_test[j] != vlist[i].CTX[j]) {
  71                                 printf("\nXTS_AES_256_enc: Vector %d: ", i + 10);
  72                                 printf("failed at byte %d! \n", j);
  73                                 return -1;
  74                         }
  75                 }
  76                 printf(".");
  77         }
  78
  79         // --- Decryption test ---
  80
  81         // Loop over the vectors
  82         for (i = 0; i < NVEC; i++) {
  83
  84                 // Allocate space for the calculated plaintext
  85                 pt_test = malloc(vlist[i].ptlen);
  86                 if (pt_test == NULL) {
  87                         printf("Can't allocate plaintext memory\n");
  88                         return -1;
  89                 }
  90                 // Pre-expand keys for the decryption
  91                 aes_keyexp_256(vlist[i].key1, expkey1_enc, expkey1_dec);
  92                 aes_keyexp_256(vlist[i].key2, expkey2_enc, null_key);
  93
  94                 // Note, encryption key is re-used for the tweak decryption step
  95                 XTS_AES_256_dec_expanded_key(expkey2_enc, expkey1_dec, vlist[i].TW,
  96                                              vlist[i].ptlen, vlist[i].CTX, pt_test);
  97
  98                 // Carry out comparison of the calculated ciphertext with
  99                 // the reference
 100                 for (j = 0; j < vlist[i].ptlen; j++) {
 101
 102                         if (pt_test[j] != vlist[i].PTX[j]) {
 103                                 printf("\nXTS_AES_256_dec: Vector %d: ", i + 10);
 104                                 printf("failed at byte %d! \n", j);
 105                                 return -1;
 106                         }
 107                 }
 108                 printf(".");
 109         }
 110         printf("Pass\n");
 111
 112         return 0;
 113 }