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1 /*
2  *  Benchmark demonstration program
3  *
4  *  Copyright The Mbed TLS Contributors
5  *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
6  */
7 
8 #if !defined(MBEDTLS_CONFIG_FILE)
9 #include "mbedtls/config.h"
10 #else
11 #include MBEDTLS_CONFIG_FILE
12 #endif
13 
14 #include "mbedtls/platform.h"
15 
16 #if !defined(MBEDTLS_TIMING_C)
main(void)17 int main(void)
18 {
19     mbedtls_printf("MBEDTLS_TIMING_C not defined.\n");
20     mbedtls_exit(0);
21 }
22 #else
23 
24 #include <string.h>
25 #include <stdlib.h>
26 
27 #include "mbedtls/timing.h"
28 
29 #include "mbedtls/md4.h"
30 #include "mbedtls/md5.h"
31 #include "mbedtls/ripemd160.h"
32 #include "mbedtls/sha1.h"
33 #include "mbedtls/sha256.h"
34 #include "mbedtls/sha512.h"
35 
36 #include "mbedtls/arc4.h"
37 #include "mbedtls/des.h"
38 #include "mbedtls/aes.h"
39 #include "mbedtls/aria.h"
40 #include "mbedtls/blowfish.h"
41 #include "mbedtls/camellia.h"
42 #include "mbedtls/chacha20.h"
43 #include "mbedtls/gcm.h"
44 #include "mbedtls/ccm.h"
45 #include "mbedtls/chachapoly.h"
46 #include "mbedtls/cmac.h"
47 #include "mbedtls/poly1305.h"
48 
49 #include "mbedtls/havege.h"
50 #include "mbedtls/ctr_drbg.h"
51 #include "mbedtls/hmac_drbg.h"
52 
53 #include "mbedtls/rsa.h"
54 #include "mbedtls/dhm.h"
55 #include "mbedtls/ecdsa.h"
56 #include "mbedtls/ecdh.h"
57 
58 #include "mbedtls/error.h"
59 
60 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
61 #include "mbedtls/memory_buffer_alloc.h"
62 #endif
63 
64 /*
65  * For heap usage estimates, we need an estimate of the overhead per allocated
66  * block. ptmalloc2/3 (used in gnu libc for instance) uses 2 size_t per block,
67  * so use that as our baseline.
68  */
69 #define MEM_BLOCK_OVERHEAD  (2 * sizeof(size_t))
70 
71 /*
72  * Size to use for the alloc buffer if MEMORY_BUFFER_ALLOC_C is defined.
73  */
74 #define HEAP_SIZE       (1u << 16)  /* 64k */
75 
76 #define BUFSIZE         1024
77 #define HEADER_FORMAT   "  %-24s :  "
78 #define TITLE_LEN       25
79 
80 #define OPTIONS                                                         \
81     "md4, md5, ripemd160, sha1, sha256, sha512,\n"                      \
82     "arc4, des3, des, camellia, blowfish, chacha20,\n"                  \
83     "aes_cbc, aes_gcm, aes_ccm, aes_xts, chachapoly,\n"                 \
84     "aes_cmac, des3_cmac, poly1305\n"                                   \
85     "havege, ctr_drbg, hmac_drbg\n"                                     \
86     "rsa, dhm, ecdsa, ecdh.\n"
87 
88 #if defined(MBEDTLS_ERROR_C)
89 #define PRINT_ERROR                                                     \
90     mbedtls_strerror(ret, (char *) tmp, sizeof(tmp));          \
91     mbedtls_printf("FAILED: %s\n", tmp);
92 #else
93 #define PRINT_ERROR                                                     \
94     mbedtls_printf("FAILED: -0x%04x\n", (unsigned int) -ret);
95 #endif
96 
97 #define TIME_AND_TSC(TITLE, CODE)                                     \
98     do {                                                                    \
99         unsigned long ii, jj, tsc;                                          \
100         int ret = 0;                                                        \
101                                                                         \
102         mbedtls_printf(HEADER_FORMAT, TITLE);                             \
103         fflush(stdout);                                                   \
104                                                                         \
105         mbedtls_set_alarm(1);                                             \
106         for (ii = 1; ret == 0 && !mbedtls_timing_alarmed; ii++)           \
107         {                                                                   \
108             ret = CODE;                                                     \
109         }                                                                   \
110                                                                         \
111         tsc = mbedtls_timing_hardclock();                                   \
112         for (jj = 0; ret == 0 && jj < 1024; jj++)                          \
113         {                                                                   \
114             ret = CODE;                                                     \
115         }                                                                   \
116                                                                         \
117         if (ret != 0)                                                      \
118         {                                                                   \
119             PRINT_ERROR;                                                    \
120         }                                                                   \
121         else                                                                \
122         {                                                                   \
123             mbedtls_printf("%9lu KiB/s,  %9lu cycles/byte\n",              \
124                            ii * BUFSIZE / 1024,                           \
125                            (mbedtls_timing_hardclock() - tsc)           \
126                            / (jj * BUFSIZE));                          \
127         }                                                                   \
128     } while (0)
129 
130 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && defined(MBEDTLS_MEMORY_DEBUG)
131 
132 /* How much space to reserve for the title when printing heap usage results.
133  * Updated manually as the output of the following command:
134  *
135  *  sed -n 's/.*[T]IME_PUBLIC.*"\(.*\)",/\1/p' programs/test/benchmark.c |
136  *      awk '{print length+3}' | sort -rn | head -n1
137  *
138  * This computes the maximum length of a title +3, because we appends "/s" and
139  * want at least one space. (If the value is too small, the only consequence
140  * is poor alignment.) */
141 #define TITLE_SPACE 17
142 
143 #define MEMORY_MEASURE_INIT                                             \
144     size_t max_used, max_blocks, max_bytes;                             \
145     size_t prv_used, prv_blocks;                                        \
146     mbedtls_memory_buffer_alloc_cur_get(&prv_used, &prv_blocks);      \
147     mbedtls_memory_buffer_alloc_max_reset();
148 
149 #define MEMORY_MEASURE_PRINT(title_len)                               \
150     mbedtls_memory_buffer_alloc_max_get(&max_used, &max_blocks);      \
151     ii = TITLE_SPACE > (title_len) ? TITLE_SPACE - (title_len) : 1;     \
152     while (ii--) mbedtls_printf(" ");                                \
153     max_used -= prv_used;                                               \
154     max_blocks -= prv_blocks;                                           \
155     max_bytes = max_used + MEM_BLOCK_OVERHEAD * max_blocks;             \
156     mbedtls_printf("%6u heap bytes", (unsigned) max_bytes);
157 
158 #else
159 #define MEMORY_MEASURE_INIT
160 #define MEMORY_MEASURE_PRINT(title_len)
161 #endif
162 
163 #define TIME_PUBLIC(TITLE, TYPE, CODE)                                \
164     do {                                                                    \
165         unsigned long ii;                                                   \
166         int ret;                                                            \
167         MEMORY_MEASURE_INIT;                                                \
168                                                                         \
169         mbedtls_printf(HEADER_FORMAT, TITLE);                             \
170         fflush(stdout);                                                   \
171         mbedtls_set_alarm(3);                                             \
172                                                                         \
173         ret = 0;                                                            \
174         for (ii = 1; !mbedtls_timing_alarmed && !ret; ii++)             \
175         {                                                                   \
176             CODE;                                                           \
177         }                                                                   \
178                                                                         \
179         if (ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED)               \
180         {                                                                   \
181             mbedtls_printf("Feature Not Supported. Skipping.\n");         \
182             ret = 0;                                                        \
183         }                                                                   \
184         else if (ret != 0)                                                 \
185         {                                                                   \
186             PRINT_ERROR;                                                    \
187         }                                                                   \
188         else                                                                \
189         {                                                                   \
190             mbedtls_printf("%6lu " TYPE "/s", ii / 3);                    \
191             MEMORY_MEASURE_PRINT(sizeof(TYPE) + 1);                     \
192             mbedtls_printf("\n");                                         \
193         }                                                                   \
194     } while (0)
195 
myrand(void * rng_state,unsigned char * output,size_t len)196 static int myrand(void *rng_state, unsigned char *output, size_t len)
197 {
198     size_t use_len;
199     int rnd;
200 
201     if (rng_state != NULL) {
202         rng_state  = NULL;
203     }
204 
205     while (len > 0) {
206         use_len = len;
207         if (use_len > sizeof(int)) {
208             use_len = sizeof(int);
209         }
210 
211         rnd = rand();
212         memcpy(output, &rnd, use_len);
213         output += use_len;
214         len -= use_len;
215     }
216 
217     return 0;
218 }
219 
220 #define CHECK_AND_CONTINUE(R)                                         \
221     {                                                                   \
222         int CHECK_AND_CONTINUE_ret = (R);                             \
223         if (CHECK_AND_CONTINUE_ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED) { \
224             mbedtls_printf("Feature not supported. Skipping.\n");     \
225             continue;                                                   \
226         }                                                               \
227         else if (CHECK_AND_CONTINUE_ret != 0) {                        \
228             mbedtls_exit(1);                                          \
229         }                                                               \
230     }
231 
232 /*
233  * Clear some memory that was used to prepare the context
234  */
235 #if defined(MBEDTLS_ECP_C)
ecp_clear_precomputed(mbedtls_ecp_group * grp)236 void ecp_clear_precomputed(mbedtls_ecp_group *grp)
237 {
238     if (grp->T != NULL) {
239         size_t i;
240         for (i = 0; i < grp->T_size; i++) {
241             mbedtls_ecp_point_free(&grp->T[i]);
242         }
243         mbedtls_free(grp->T);
244     }
245     grp->T = NULL;
246     grp->T_size = 0;
247 }
248 #else
249 #define ecp_clear_precomputed(g)
250 #endif
251 
252 #if defined(MBEDTLS_ECP_C)
set_ecp_curve(const char * string,mbedtls_ecp_curve_info * curve)253 static int set_ecp_curve(const char *string, mbedtls_ecp_curve_info *curve)
254 {
255     const mbedtls_ecp_curve_info *found =
256         mbedtls_ecp_curve_info_from_name(string);
257     if (found != NULL) {
258         *curve = *found;
259         return 1;
260     } else {
261         return 0;
262     }
263 }
264 #endif
265 
266 unsigned char buf[BUFSIZE];
267 
268 typedef struct {
269     char md4, md5, ripemd160, sha1, sha256, sha512,
270          arc4, des3, des,
271          aes_cbc, aes_gcm, aes_ccm, aes_xts, chachapoly,
272          aes_cmac, des3_cmac,
273          aria, camellia, blowfish, chacha20,
274          poly1305,
275          havege, ctr_drbg, hmac_drbg,
276          rsa, dhm, ecdsa, ecdh;
277 } todo_list;
278 
279 
main(int argc,char * argv[])280 int main(int argc, char *argv[])
281 {
282     int i;
283     unsigned char tmp[200];
284     char title[TITLE_LEN];
285     todo_list todo;
286 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
287     unsigned char alloc_buf[HEAP_SIZE] = { 0 };
288 #endif
289 #if defined(MBEDTLS_ECP_C)
290     mbedtls_ecp_curve_info single_curve[2] = {
291         { MBEDTLS_ECP_DP_NONE, 0, 0, NULL },
292         { MBEDTLS_ECP_DP_NONE, 0, 0, NULL },
293     };
294     const mbedtls_ecp_curve_info *curve_list = mbedtls_ecp_curve_list();
295 #endif
296 
297 #if defined(MBEDTLS_ECP_C)
298     (void) curve_list; /* Unused in some configurations where no benchmark uses ECC */
299 #endif
300 
301     if (argc <= 1) {
302         memset(&todo, 1, sizeof(todo));
303     } else {
304         memset(&todo, 0, sizeof(todo));
305 
306         for (i = 1; i < argc; i++) {
307             if (strcmp(argv[i], "md4") == 0) {
308                 todo.md4 = 1;
309             } else if (strcmp(argv[i], "md5") == 0) {
310                 todo.md5 = 1;
311             } else if (strcmp(argv[i], "ripemd160") == 0) {
312                 todo.ripemd160 = 1;
313             } else if (strcmp(argv[i], "sha1") == 0) {
314                 todo.sha1 = 1;
315             } else if (strcmp(argv[i], "sha256") == 0) {
316                 todo.sha256 = 1;
317             } else if (strcmp(argv[i], "sha512") == 0) {
318                 todo.sha512 = 1;
319             } else if (strcmp(argv[i], "arc4") == 0) {
320                 todo.arc4 = 1;
321             } else if (strcmp(argv[i], "des3") == 0) {
322                 todo.des3 = 1;
323             } else if (strcmp(argv[i], "des") == 0) {
324                 todo.des = 1;
325             } else if (strcmp(argv[i], "aes_cbc") == 0) {
326                 todo.aes_cbc = 1;
327             } else if (strcmp(argv[i], "aes_xts") == 0) {
328                 todo.aes_xts = 1;
329             } else if (strcmp(argv[i], "aes_gcm") == 0) {
330                 todo.aes_gcm = 1;
331             } else if (strcmp(argv[i], "aes_ccm") == 0) {
332                 todo.aes_ccm = 1;
333             } else if (strcmp(argv[i], "chachapoly") == 0) {
334                 todo.chachapoly = 1;
335             } else if (strcmp(argv[i], "aes_cmac") == 0) {
336                 todo.aes_cmac = 1;
337             } else if (strcmp(argv[i], "des3_cmac") == 0) {
338                 todo.des3_cmac = 1;
339             } else if (strcmp(argv[i], "aria") == 0) {
340                 todo.aria = 1;
341             } else if (strcmp(argv[i], "camellia") == 0) {
342                 todo.camellia = 1;
343             } else if (strcmp(argv[i], "blowfish") == 0) {
344                 todo.blowfish = 1;
345             } else if (strcmp(argv[i], "chacha20") == 0) {
346                 todo.chacha20 = 1;
347             } else if (strcmp(argv[i], "poly1305") == 0) {
348                 todo.poly1305 = 1;
349             } else if (strcmp(argv[i], "havege") == 0) {
350                 todo.havege = 1;
351             } else if (strcmp(argv[i], "ctr_drbg") == 0) {
352                 todo.ctr_drbg = 1;
353             } else if (strcmp(argv[i], "hmac_drbg") == 0) {
354                 todo.hmac_drbg = 1;
355             } else if (strcmp(argv[i], "rsa") == 0) {
356                 todo.rsa = 1;
357             } else if (strcmp(argv[i], "dhm") == 0) {
358                 todo.dhm = 1;
359             } else if (strcmp(argv[i], "ecdsa") == 0) {
360                 todo.ecdsa = 1;
361             } else if (strcmp(argv[i], "ecdh") == 0) {
362                 todo.ecdh = 1;
363             }
364 #if defined(MBEDTLS_ECP_C)
365             else if (set_ecp_curve(argv[i], single_curve)) {
366                 curve_list = single_curve;
367             }
368 #endif
369             else {
370                 mbedtls_printf("Unrecognized option: %s\n", argv[i]);
371                 mbedtls_printf("Available options: " OPTIONS);
372             }
373         }
374     }
375 
376     mbedtls_printf("\n");
377 
378 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
379     mbedtls_memory_buffer_alloc_init(alloc_buf, sizeof(alloc_buf));
380 #endif
381     memset(buf, 0xAA, sizeof(buf));
382     memset(tmp, 0xBB, sizeof(tmp));
383 
384 #if defined(MBEDTLS_MD4_C)
385     if (todo.md4) {
386         TIME_AND_TSC("MD4", mbedtls_md4_ret(buf, BUFSIZE, tmp));
387     }
388 #endif
389 
390 #if defined(MBEDTLS_MD5_C)
391     if (todo.md5) {
392         TIME_AND_TSC("MD5", mbedtls_md5_ret(buf, BUFSIZE, tmp));
393     }
394 #endif
395 
396 #if defined(MBEDTLS_RIPEMD160_C)
397     if (todo.ripemd160) {
398         TIME_AND_TSC("RIPEMD160", mbedtls_ripemd160_ret(buf, BUFSIZE, tmp));
399     }
400 #endif
401 
402 #if defined(MBEDTLS_SHA1_C)
403     if (todo.sha1) {
404         TIME_AND_TSC("SHA-1", mbedtls_sha1_ret(buf, BUFSIZE, tmp));
405     }
406 #endif
407 
408 #if defined(MBEDTLS_SHA256_C)
409     if (todo.sha256) {
410         TIME_AND_TSC("SHA-256", mbedtls_sha256_ret(buf, BUFSIZE, tmp, 0));
411     }
412 #endif
413 
414 #if defined(MBEDTLS_SHA512_C)
415     if (todo.sha512) {
416         TIME_AND_TSC("SHA-512", mbedtls_sha512_ret(buf, BUFSIZE, tmp, 0));
417     }
418 #endif
419 
420 #if defined(MBEDTLS_ARC4_C)
421     if (todo.arc4) {
422         mbedtls_arc4_context arc4;
423         mbedtls_arc4_init(&arc4);
424         mbedtls_arc4_setup(&arc4, tmp, 32);
425         TIME_AND_TSC("ARC4", mbedtls_arc4_crypt(&arc4, BUFSIZE, buf, buf));
426         mbedtls_arc4_free(&arc4);
427     }
428 #endif
429 
430 #if defined(MBEDTLS_DES_C)
431 #if defined(MBEDTLS_CIPHER_MODE_CBC)
432     if (todo.des3) {
433         mbedtls_des3_context des3;
434         mbedtls_des3_init(&des3);
435         if (mbedtls_des3_set3key_enc(&des3, tmp) != 0) {
436             mbedtls_exit(1);
437         }
438         TIME_AND_TSC("3DES",
439                      mbedtls_des3_crypt_cbc(&des3, MBEDTLS_DES_ENCRYPT, BUFSIZE, tmp, buf, buf));
440         mbedtls_des3_free(&des3);
441     }
442 
443     if (todo.des) {
444         mbedtls_des_context des;
445         mbedtls_des_init(&des);
446         if (mbedtls_des_setkey_enc(&des, tmp) != 0) {
447             mbedtls_exit(1);
448         }
449         TIME_AND_TSC("DES",
450                      mbedtls_des_crypt_cbc(&des, MBEDTLS_DES_ENCRYPT, BUFSIZE, tmp, buf, buf));
451         mbedtls_des_free(&des);
452     }
453 
454 #endif /* MBEDTLS_CIPHER_MODE_CBC */
455 #if defined(MBEDTLS_CMAC_C)
456     if (todo.des3_cmac) {
457         unsigned char output[8];
458         const mbedtls_cipher_info_t *cipher_info;
459 
460         memset(buf, 0, sizeof(buf));
461         memset(tmp, 0, sizeof(tmp));
462 
463         cipher_info = mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_DES_EDE3_ECB);
464 
465         TIME_AND_TSC("3DES-CMAC",
466                      mbedtls_cipher_cmac(cipher_info, tmp, 192, buf,
467                                          BUFSIZE, output));
468     }
469 #endif /* MBEDTLS_CMAC_C */
470 #endif /* MBEDTLS_DES_C */
471 
472 #if defined(MBEDTLS_AES_C)
473 #if defined(MBEDTLS_CIPHER_MODE_CBC)
474     if (todo.aes_cbc) {
475         int keysize;
476         mbedtls_aes_context aes;
477         mbedtls_aes_init(&aes);
478         for (keysize = 128; keysize <= 256; keysize += 64) {
479             mbedtls_snprintf(title, sizeof(title), "AES-CBC-%d", keysize);
480 
481             memset(buf, 0, sizeof(buf));
482             memset(tmp, 0, sizeof(tmp));
483             CHECK_AND_CONTINUE(mbedtls_aes_setkey_enc(&aes, tmp, keysize));
484 
485             TIME_AND_TSC(title,
486                          mbedtls_aes_crypt_cbc(&aes, MBEDTLS_AES_ENCRYPT, BUFSIZE, tmp, buf, buf));
487         }
488         mbedtls_aes_free(&aes);
489     }
490 #endif
491 #if defined(MBEDTLS_CIPHER_MODE_XTS)
492     if (todo.aes_xts) {
493         int keysize;
494         mbedtls_aes_xts_context ctx;
495 
496         mbedtls_aes_xts_init(&ctx);
497         for (keysize = 128; keysize <= 256; keysize += 128) {
498             mbedtls_snprintf(title, sizeof(title), "AES-XTS-%d", keysize);
499 
500             memset(buf, 0, sizeof(buf));
501             memset(tmp, 0, sizeof(tmp));
502             CHECK_AND_CONTINUE(mbedtls_aes_xts_setkey_enc(&ctx, tmp, keysize * 2));
503 
504             TIME_AND_TSC(title,
505                          mbedtls_aes_crypt_xts(&ctx, MBEDTLS_AES_ENCRYPT, BUFSIZE,
506                                                tmp, buf, buf));
507 
508             mbedtls_aes_xts_free(&ctx);
509         }
510     }
511 #endif
512 #if defined(MBEDTLS_GCM_C)
513     if (todo.aes_gcm) {
514         int keysize;
515         mbedtls_gcm_context gcm;
516 
517         mbedtls_gcm_init(&gcm);
518         for (keysize = 128; keysize <= 256; keysize += 64) {
519             mbedtls_snprintf(title, sizeof(title), "AES-GCM-%d", keysize);
520 
521             memset(buf, 0, sizeof(buf));
522             memset(tmp, 0, sizeof(tmp));
523             mbedtls_gcm_setkey(&gcm, MBEDTLS_CIPHER_ID_AES, tmp, keysize);
524 
525             TIME_AND_TSC(title,
526                          mbedtls_gcm_crypt_and_tag(&gcm, MBEDTLS_GCM_ENCRYPT, BUFSIZE, tmp,
527                                                    12, NULL, 0, buf, buf, 16, tmp));
528 
529             mbedtls_gcm_free(&gcm);
530         }
531     }
532 #endif
533 #if defined(MBEDTLS_CCM_C)
534     if (todo.aes_ccm) {
535         int keysize;
536         mbedtls_ccm_context ccm;
537 
538         mbedtls_ccm_init(&ccm);
539         for (keysize = 128; keysize <= 256; keysize += 64) {
540             mbedtls_snprintf(title, sizeof(title), "AES-CCM-%d", keysize);
541 
542             memset(buf, 0, sizeof(buf));
543             memset(tmp, 0, sizeof(tmp));
544             mbedtls_ccm_setkey(&ccm, MBEDTLS_CIPHER_ID_AES, tmp, keysize);
545 
546             TIME_AND_TSC(title,
547                          mbedtls_ccm_encrypt_and_tag(&ccm, BUFSIZE, tmp,
548                                                      12, NULL, 0, buf, buf, tmp, 16));
549 
550             mbedtls_ccm_free(&ccm);
551         }
552     }
553 #endif
554 #if defined(MBEDTLS_CHACHAPOLY_C)
555     if (todo.chachapoly) {
556         mbedtls_chachapoly_context chachapoly;
557 
558         mbedtls_chachapoly_init(&chachapoly);
559         memset(buf, 0, sizeof(buf));
560         memset(tmp, 0, sizeof(tmp));
561 
562         mbedtls_snprintf(title, sizeof(title), "ChaCha20-Poly1305");
563 
564         mbedtls_chachapoly_setkey(&chachapoly, tmp);
565 
566         TIME_AND_TSC(title,
567                      mbedtls_chachapoly_encrypt_and_tag(&chachapoly,
568                                                         BUFSIZE, tmp, NULL, 0, buf, buf, tmp));
569 
570         mbedtls_chachapoly_free(&chachapoly);
571     }
572 #endif
573 #if defined(MBEDTLS_CMAC_C)
574     if (todo.aes_cmac) {
575         unsigned char output[16];
576         const mbedtls_cipher_info_t *cipher_info;
577         mbedtls_cipher_type_t cipher_type;
578         int keysize;
579 
580         for (keysize = 128, cipher_type = MBEDTLS_CIPHER_AES_128_ECB;
581              keysize <= 256;
582              keysize += 64, cipher_type++) {
583             mbedtls_snprintf(title, sizeof(title), "AES-CMAC-%d", keysize);
584 
585             memset(buf, 0, sizeof(buf));
586             memset(tmp, 0, sizeof(tmp));
587 
588             cipher_info = mbedtls_cipher_info_from_type(cipher_type);
589 
590             TIME_AND_TSC(title,
591                          mbedtls_cipher_cmac(cipher_info, tmp, keysize,
592                                              buf, BUFSIZE, output));
593         }
594 
595         memset(buf, 0, sizeof(buf));
596         memset(tmp, 0, sizeof(tmp));
597         TIME_AND_TSC("AES-CMAC-PRF-128",
598                      mbedtls_aes_cmac_prf_128(tmp, 16, buf, BUFSIZE,
599                                               output));
600     }
601 #endif /* MBEDTLS_CMAC_C */
602 #endif /* MBEDTLS_AES_C */
603 
604 #if defined(MBEDTLS_ARIA_C) && defined(MBEDTLS_CIPHER_MODE_CBC)
605     if (todo.aria) {
606         int keysize;
607         mbedtls_aria_context aria;
608         mbedtls_aria_init(&aria);
609         for (keysize = 128; keysize <= 256; keysize += 64) {
610             mbedtls_snprintf(title, sizeof(title), "ARIA-CBC-%d", keysize);
611 
612             memset(buf, 0, sizeof(buf));
613             memset(tmp, 0, sizeof(tmp));
614             mbedtls_aria_setkey_enc(&aria, tmp, keysize);
615 
616             TIME_AND_TSC(title,
617                          mbedtls_aria_crypt_cbc(&aria, MBEDTLS_ARIA_ENCRYPT,
618                                                 BUFSIZE, tmp, buf, buf));
619         }
620         mbedtls_aria_free(&aria);
621     }
622 #endif
623 
624 #if defined(MBEDTLS_CAMELLIA_C) && defined(MBEDTLS_CIPHER_MODE_CBC)
625     if (todo.camellia) {
626         int keysize;
627         mbedtls_camellia_context camellia;
628         mbedtls_camellia_init(&camellia);
629         for (keysize = 128; keysize <= 256; keysize += 64) {
630             mbedtls_snprintf(title, sizeof(title), "CAMELLIA-CBC-%d", keysize);
631 
632             memset(buf, 0, sizeof(buf));
633             memset(tmp, 0, sizeof(tmp));
634             mbedtls_camellia_setkey_enc(&camellia, tmp, keysize);
635 
636             TIME_AND_TSC(title,
637                          mbedtls_camellia_crypt_cbc(&camellia, MBEDTLS_CAMELLIA_ENCRYPT,
638                                                     BUFSIZE, tmp, buf, buf));
639         }
640         mbedtls_camellia_free(&camellia);
641     }
642 #endif
643 
644 #if defined(MBEDTLS_CHACHA20_C)
645     if (todo.chacha20) {
646         TIME_AND_TSC("ChaCha20", mbedtls_chacha20_crypt(buf, buf, 0U, BUFSIZE, buf, buf));
647     }
648 #endif
649 
650 #if defined(MBEDTLS_POLY1305_C)
651     if (todo.poly1305) {
652         TIME_AND_TSC("Poly1305", mbedtls_poly1305_mac(buf, buf, BUFSIZE, buf));
653     }
654 #endif
655 
656 #if defined(MBEDTLS_BLOWFISH_C) && defined(MBEDTLS_CIPHER_MODE_CBC)
657     if (todo.blowfish) {
658         int keysize;
659         mbedtls_blowfish_context blowfish;
660         mbedtls_blowfish_init(&blowfish);
661 
662         for (keysize = 128; keysize <= 256; keysize += 64) {
663             mbedtls_snprintf(title, sizeof(title), "BLOWFISH-CBC-%d", keysize);
664 
665             memset(buf, 0, sizeof(buf));
666             memset(tmp, 0, sizeof(tmp));
667             mbedtls_blowfish_setkey(&blowfish, tmp, keysize);
668 
669             TIME_AND_TSC(title,
670                          mbedtls_blowfish_crypt_cbc(&blowfish, MBEDTLS_BLOWFISH_ENCRYPT, BUFSIZE,
671                                                     tmp, buf, buf));
672         }
673 
674         mbedtls_blowfish_free(&blowfish);
675     }
676 #endif
677 
678 #if defined(MBEDTLS_HAVEGE_C)
679     if (todo.havege) {
680         mbedtls_havege_state hs;
681         mbedtls_havege_init(&hs);
682         TIME_AND_TSC("HAVEGE", mbedtls_havege_random(&hs, buf, BUFSIZE));
683         mbedtls_havege_free(&hs);
684     }
685 #endif
686 
687 #if defined(MBEDTLS_CTR_DRBG_C)
688     if (todo.ctr_drbg) {
689         mbedtls_ctr_drbg_context ctr_drbg;
690 
691         mbedtls_ctr_drbg_init(&ctr_drbg);
692         if (mbedtls_ctr_drbg_seed(&ctr_drbg, myrand, NULL, NULL, 0) != 0) {
693             mbedtls_exit(1);
694         }
695         TIME_AND_TSC("CTR_DRBG (NOPR)",
696                      mbedtls_ctr_drbg_random(&ctr_drbg, buf, BUFSIZE));
697         mbedtls_ctr_drbg_free(&ctr_drbg);
698 
699         mbedtls_ctr_drbg_init(&ctr_drbg);
700         if (mbedtls_ctr_drbg_seed(&ctr_drbg, myrand, NULL, NULL, 0) != 0) {
701             mbedtls_exit(1);
702         }
703         mbedtls_ctr_drbg_set_prediction_resistance(&ctr_drbg, MBEDTLS_CTR_DRBG_PR_ON);
704         TIME_AND_TSC("CTR_DRBG (PR)",
705                      mbedtls_ctr_drbg_random(&ctr_drbg, buf, BUFSIZE));
706         mbedtls_ctr_drbg_free(&ctr_drbg);
707     }
708 #endif
709 
710 #if defined(MBEDTLS_HMAC_DRBG_C) && \
711     (defined(MBEDTLS_SHA1_C) || defined(MBEDTLS_SHA256_C))
712     if (todo.hmac_drbg) {
713         mbedtls_hmac_drbg_context hmac_drbg;
714         const mbedtls_md_info_t *md_info;
715 
716         mbedtls_hmac_drbg_init(&hmac_drbg);
717 
718 #if defined(MBEDTLS_SHA1_C)
719         if ((md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA1)) == NULL) {
720             mbedtls_exit(1);
721         }
722 
723         if (mbedtls_hmac_drbg_seed(&hmac_drbg, md_info, myrand, NULL, NULL, 0) != 0) {
724             mbedtls_exit(1);
725         }
726         TIME_AND_TSC("HMAC_DRBG SHA-1 (NOPR)",
727                      mbedtls_hmac_drbg_random(&hmac_drbg, buf, BUFSIZE));
728 
729         if (mbedtls_hmac_drbg_seed(&hmac_drbg, md_info, myrand, NULL, NULL, 0) != 0) {
730             mbedtls_exit(1);
731         }
732         mbedtls_hmac_drbg_set_prediction_resistance(&hmac_drbg,
733                                                     MBEDTLS_HMAC_DRBG_PR_ON);
734         TIME_AND_TSC("HMAC_DRBG SHA-1 (PR)",
735                      mbedtls_hmac_drbg_random(&hmac_drbg, buf, BUFSIZE));
736 #endif
737 
738 #if defined(MBEDTLS_SHA256_C)
739         if ((md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA256)) == NULL) {
740             mbedtls_exit(1);
741         }
742 
743         if (mbedtls_hmac_drbg_seed(&hmac_drbg, md_info, myrand, NULL, NULL, 0) != 0) {
744             mbedtls_exit(1);
745         }
746         TIME_AND_TSC("HMAC_DRBG SHA-256 (NOPR)",
747                      mbedtls_hmac_drbg_random(&hmac_drbg, buf, BUFSIZE));
748 
749         if (mbedtls_hmac_drbg_seed(&hmac_drbg, md_info, myrand, NULL, NULL, 0) != 0) {
750             mbedtls_exit(1);
751         }
752         mbedtls_hmac_drbg_set_prediction_resistance(&hmac_drbg,
753                                                     MBEDTLS_HMAC_DRBG_PR_ON);
754         TIME_AND_TSC("HMAC_DRBG SHA-256 (PR)",
755                      mbedtls_hmac_drbg_random(&hmac_drbg, buf, BUFSIZE));
756 #endif
757         mbedtls_hmac_drbg_free(&hmac_drbg);
758     }
759 #endif /* MBEDTLS_HMAC_DRBG_C && ( MBEDTLS_SHA1_C || MBEDTLS_SHA256_C ) */
760 
761 #if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME)
762     if (todo.rsa) {
763         int keysize;
764         mbedtls_rsa_context rsa;
765         for (keysize = 2048; keysize <= 4096; keysize *= 2) {
766             mbedtls_snprintf(title, sizeof(title), "RSA-%d", keysize);
767 
768             mbedtls_rsa_init(&rsa, MBEDTLS_RSA_PKCS_V15, 0);
769             mbedtls_rsa_gen_key(&rsa, myrand, NULL, keysize, 65537);
770 
771             TIME_PUBLIC(title, " public",
772                         buf[0] = 0;
773                         ret = mbedtls_rsa_public(&rsa, buf, buf));
774 
775             TIME_PUBLIC(title, "private",
776                         buf[0] = 0;
777                         ret = mbedtls_rsa_private(&rsa, myrand, NULL, buf, buf));
778 
779             mbedtls_rsa_free(&rsa);
780         }
781     }
782 #endif
783 
784 #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_BIGNUM_C)
785     if (todo.dhm) {
786         int dhm_sizes[] = { 2048, 3072 };
787         static const unsigned char dhm_P_2048[] =
788             MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN;
789         static const unsigned char dhm_P_3072[] =
790             MBEDTLS_DHM_RFC3526_MODP_3072_P_BIN;
791         static const unsigned char dhm_G_2048[] =
792             MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN;
793         static const unsigned char dhm_G_3072[] =
794             MBEDTLS_DHM_RFC3526_MODP_3072_G_BIN;
795 
796         const unsigned char *dhm_P[] = { dhm_P_2048, dhm_P_3072 };
797         const size_t dhm_P_size[] = { sizeof(dhm_P_2048),
798                                       sizeof(dhm_P_3072) };
799 
800         const unsigned char *dhm_G[] = { dhm_G_2048, dhm_G_3072 };
801         const size_t dhm_G_size[] = { sizeof(dhm_G_2048),
802                                       sizeof(dhm_G_3072) };
803 
804         mbedtls_dhm_context dhm;
805         size_t olen;
806         for (i = 0; (size_t) i < sizeof(dhm_sizes) / sizeof(dhm_sizes[0]); i++) {
807             mbedtls_dhm_init(&dhm);
808 
809             if (mbedtls_mpi_read_binary(&dhm.P, dhm_P[i],
810                                         dhm_P_size[i]) != 0 ||
811                 mbedtls_mpi_read_binary(&dhm.G, dhm_G[i],
812                                         dhm_G_size[i]) != 0) {
813                 mbedtls_exit(1);
814             }
815 
816             dhm.len = mbedtls_mpi_size(&dhm.P);
817             mbedtls_dhm_make_public(&dhm, (int) dhm.len, buf, dhm.len, myrand, NULL);
818             if (mbedtls_mpi_copy(&dhm.GY, &dhm.GX) != 0) {
819                 mbedtls_exit(1);
820             }
821 
822             mbedtls_snprintf(title, sizeof(title), "DHE-%d", dhm_sizes[i]);
823             TIME_PUBLIC(title, "handshake",
824                         ret |= mbedtls_dhm_make_public(&dhm, (int) dhm.len, buf, dhm.len,
825                                                        myrand, NULL);
826                         ret |=
827                             mbedtls_dhm_calc_secret(&dhm, buf, sizeof(buf), &olen, myrand, NULL));
828 
829             mbedtls_snprintf(title, sizeof(title), "DH-%d", dhm_sizes[i]);
830             TIME_PUBLIC(title, "handshake",
831                         ret |=
832                             mbedtls_dhm_calc_secret(&dhm, buf, sizeof(buf), &olen, myrand, NULL));
833 
834             mbedtls_dhm_free(&dhm);
835         }
836     }
837 #endif
838 
839 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_SHA256_C)
840     if (todo.ecdsa) {
841         mbedtls_ecdsa_context ecdsa;
842         const mbedtls_ecp_curve_info *curve_info;
843         size_t sig_len;
844 
845         memset(buf, 0x2A, sizeof(buf));
846 
847         for (curve_info = curve_list;
848              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
849              curve_info++) {
850             if (!mbedtls_ecdsa_can_do(curve_info->grp_id)) {
851                 continue;
852             }
853 
854             mbedtls_ecdsa_init(&ecdsa);
855 
856             if (mbedtls_ecdsa_genkey(&ecdsa, curve_info->grp_id, myrand, NULL) != 0) {
857                 mbedtls_exit(1);
858             }
859             ecp_clear_precomputed(&ecdsa.grp);
860 
861             mbedtls_snprintf(title, sizeof(title), "ECDSA-%s",
862                              curve_info->name);
863             TIME_PUBLIC(title, "sign",
864                         ret =
865                             mbedtls_ecdsa_write_signature(&ecdsa, MBEDTLS_MD_SHA256, buf,
866                                                           curve_info->bit_size,
867                                                           tmp, &sig_len, myrand, NULL));
868 
869             mbedtls_ecdsa_free(&ecdsa);
870         }
871 
872         for (curve_info = curve_list;
873              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
874              curve_info++) {
875             if (!mbedtls_ecdsa_can_do(curve_info->grp_id)) {
876                 continue;
877             }
878 
879             mbedtls_ecdsa_init(&ecdsa);
880 
881             if (mbedtls_ecdsa_genkey(&ecdsa, curve_info->grp_id, myrand, NULL) != 0 ||
882                 mbedtls_ecdsa_write_signature(&ecdsa, MBEDTLS_MD_SHA256, buf, curve_info->bit_size,
883                                               tmp, &sig_len, myrand, NULL) != 0) {
884                 mbedtls_exit(1);
885             }
886             ecp_clear_precomputed(&ecdsa.grp);
887 
888             mbedtls_snprintf(title, sizeof(title), "ECDSA-%s",
889                              curve_info->name);
890             TIME_PUBLIC(title, "verify",
891                         ret = mbedtls_ecdsa_read_signature(&ecdsa, buf, curve_info->bit_size,
892                                                            tmp, sig_len));
893 
894             mbedtls_ecdsa_free(&ecdsa);
895         }
896     }
897 #endif
898 
899 #if defined(MBEDTLS_ECDH_C) && defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
900     if (todo.ecdh) {
901         mbedtls_ecdh_context ecdh;
902         mbedtls_mpi z;
903         const mbedtls_ecp_curve_info montgomery_curve_list[] = {
904 #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
905             { MBEDTLS_ECP_DP_CURVE25519, 0, 0, "Curve25519" },
906 #endif
907 #if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
908             { MBEDTLS_ECP_DP_CURVE448, 0, 0, "Curve448" },
909 #endif
910             { MBEDTLS_ECP_DP_NONE, 0, 0, 0 }
911         };
912         const mbedtls_ecp_curve_info *curve_info;
913         size_t olen;
914         const mbedtls_ecp_curve_info *selected_montgomery_curve_list =
915             montgomery_curve_list;
916 
917         if (curve_list == (const mbedtls_ecp_curve_info *) &single_curve) {
918             mbedtls_ecp_group grp;
919             mbedtls_ecp_group_init(&grp);
920             if (mbedtls_ecp_group_load(&grp, curve_list->grp_id) != 0) {
921                 mbedtls_exit(1);
922             }
923             if (mbedtls_ecp_get_type(&grp) == MBEDTLS_ECP_TYPE_MONTGOMERY) {
924                 selected_montgomery_curve_list = single_curve;
925             } else { /* empty list */
926                 selected_montgomery_curve_list = single_curve + 1;
927             }
928             mbedtls_ecp_group_free(&grp);
929         }
930 
931         for (curve_info = curve_list;
932              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
933              curve_info++) {
934             if (!mbedtls_ecdh_can_do(curve_info->grp_id)) {
935                 continue;
936             }
937 
938             mbedtls_ecdh_init(&ecdh);
939 
940             CHECK_AND_CONTINUE(mbedtls_ecp_group_load(&ecdh.grp, curve_info->grp_id));
941             CHECK_AND_CONTINUE(mbedtls_ecdh_make_public(&ecdh, &olen, buf, sizeof(buf),
942                                                         myrand, NULL));
943             CHECK_AND_CONTINUE(mbedtls_ecp_copy(&ecdh.Qp, &ecdh.Q));
944             ecp_clear_precomputed(&ecdh.grp);
945 
946             mbedtls_snprintf(title, sizeof(title), "ECDHE-%s",
947                              curve_info->name);
948             TIME_PUBLIC(title, "handshake",
949                         CHECK_AND_CONTINUE(mbedtls_ecdh_make_public(&ecdh, &olen, buf, sizeof(buf),
950                                                                     myrand, NULL));
951                         CHECK_AND_CONTINUE(mbedtls_ecdh_calc_secret(&ecdh, &olen, buf, sizeof(buf),
952                                                                     myrand, NULL)));
953             mbedtls_ecdh_free(&ecdh);
954         }
955 
956         /* Montgomery curves need to be handled separately */
957         for (curve_info = selected_montgomery_curve_list;
958              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
959              curve_info++) {
960             mbedtls_ecdh_init(&ecdh);
961             mbedtls_mpi_init(&z);
962 
963             CHECK_AND_CONTINUE(mbedtls_ecp_group_load(&ecdh.grp, curve_info->grp_id));
964             CHECK_AND_CONTINUE(mbedtls_ecdh_gen_public(&ecdh.grp, &ecdh.d, &ecdh.Qp, myrand, NULL));
965 
966             mbedtls_snprintf(title, sizeof(title), "ECDHE-%s",
967                              curve_info->name);
968             TIME_PUBLIC(title, "handshake",
969                         CHECK_AND_CONTINUE(mbedtls_ecdh_gen_public(&ecdh.grp, &ecdh.d, &ecdh.Q,
970                                                                    myrand, NULL));
971                         CHECK_AND_CONTINUE(mbedtls_ecdh_compute_shared(&ecdh.grp, &z, &ecdh.Qp,
972                                                                        &ecdh.d,
973                                                                        myrand, NULL)));
974 
975             mbedtls_ecdh_free(&ecdh);
976             mbedtls_mpi_free(&z);
977         }
978 
979         for (curve_info = curve_list;
980              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
981              curve_info++) {
982             if (!mbedtls_ecdh_can_do(curve_info->grp_id)) {
983                 continue;
984             }
985 
986             mbedtls_ecdh_init(&ecdh);
987 
988             CHECK_AND_CONTINUE(mbedtls_ecp_group_load(&ecdh.grp, curve_info->grp_id));
989             CHECK_AND_CONTINUE(mbedtls_ecdh_make_public(&ecdh, &olen, buf, sizeof(buf),
990                                                         myrand, NULL));
991             CHECK_AND_CONTINUE(mbedtls_ecp_copy(&ecdh.Qp, &ecdh.Q));
992             CHECK_AND_CONTINUE(mbedtls_ecdh_make_public(&ecdh, &olen, buf, sizeof(buf),
993                                                         myrand, NULL));
994             ecp_clear_precomputed(&ecdh.grp);
995 
996             mbedtls_snprintf(title, sizeof(title), "ECDH-%s",
997                              curve_info->name);
998             TIME_PUBLIC(title, "handshake",
999                         CHECK_AND_CONTINUE(mbedtls_ecdh_calc_secret(&ecdh, &olen, buf, sizeof(buf),
1000                                                                     myrand, NULL)));
1001             mbedtls_ecdh_free(&ecdh);
1002         }
1003 
1004         /* Montgomery curves need to be handled separately */
1005         for (curve_info = selected_montgomery_curve_list;
1006              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
1007              curve_info++) {
1008             mbedtls_ecdh_init(&ecdh);
1009             mbedtls_mpi_init(&z);
1010 
1011             CHECK_AND_CONTINUE(mbedtls_ecp_group_load(&ecdh.grp, curve_info->grp_id));
1012             CHECK_AND_CONTINUE(mbedtls_ecdh_gen_public(&ecdh.grp, &ecdh.d, &ecdh.Qp,
1013                                                        myrand, NULL));
1014             CHECK_AND_CONTINUE(mbedtls_ecdh_gen_public(&ecdh.grp, &ecdh.d, &ecdh.Q, myrand, NULL));
1015 
1016             mbedtls_snprintf(title, sizeof(title), "ECDH-%s",
1017                              curve_info->name);
1018             TIME_PUBLIC(title, "handshake",
1019                         CHECK_AND_CONTINUE(mbedtls_ecdh_compute_shared(&ecdh.grp, &z, &ecdh.Qp,
1020                                                                        &ecdh.d,
1021                                                                        myrand, NULL)));
1022 
1023             mbedtls_ecdh_free(&ecdh);
1024             mbedtls_mpi_free(&z);
1025         }
1026     }
1027 #endif
1028 
1029 #if defined(MBEDTLS_ECDH_C)
1030     if (todo.ecdh) {
1031         mbedtls_ecdh_context ecdh_srv, ecdh_cli;
1032         unsigned char buf_srv[BUFSIZE], buf_cli[BUFSIZE];
1033         const mbedtls_ecp_curve_info *curve_info;
1034         size_t olen;
1035 
1036         for (curve_info = curve_list;
1037              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
1038              curve_info++) {
1039             if (!mbedtls_ecdh_can_do(curve_info->grp_id)) {
1040                 continue;
1041             }
1042 
1043             mbedtls_ecdh_init(&ecdh_srv);
1044             mbedtls_ecdh_init(&ecdh_cli);
1045 
1046             mbedtls_snprintf(title, sizeof(title), "ECDHE-%s", curve_info->name);
1047             TIME_PUBLIC(title,
1048                         "full handshake",
1049                         const unsigned char *p_srv = buf_srv;
1050 
1051                         CHECK_AND_CONTINUE(mbedtls_ecdh_setup(&ecdh_srv, curve_info->grp_id));
1052                         CHECK_AND_CONTINUE(mbedtls_ecdh_make_params(&ecdh_srv, &olen, buf_srv,
1053                                                                     sizeof(buf_srv), myrand, NULL));
1054 
1055                         CHECK_AND_CONTINUE(mbedtls_ecdh_read_params(&ecdh_cli, &p_srv,
1056                                                                     p_srv + olen));
1057                         CHECK_AND_CONTINUE(mbedtls_ecdh_make_public(&ecdh_cli, &olen, buf_cli,
1058                                                                     sizeof(buf_cli), myrand, NULL));
1059 
1060                         CHECK_AND_CONTINUE(mbedtls_ecdh_read_public(&ecdh_srv, buf_cli, olen));
1061                         CHECK_AND_CONTINUE(mbedtls_ecdh_calc_secret(&ecdh_srv, &olen, buf_srv,
1062                                                                     sizeof(buf_srv), myrand, NULL));
1063 
1064                         CHECK_AND_CONTINUE(mbedtls_ecdh_calc_secret(&ecdh_cli, &olen, buf_cli,
1065                                                                     sizeof(buf_cli), myrand, NULL));
1066                         mbedtls_ecdh_free(&ecdh_cli);
1067 
1068                         mbedtls_ecdh_free(&ecdh_srv);
1069                         );
1070 
1071         }
1072     }
1073 #endif
1074 
1075     mbedtls_printf("\n");
1076 
1077 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
1078     mbedtls_memory_buffer_alloc_free();
1079 #endif
1080 
1081 #if defined(_WIN32)
1082     mbedtls_printf("  Press Enter to exit this program.\n");
1083     fflush(stdout); getchar();
1084 #endif
1085 
1086     mbedtls_exit(0);
1087 }
1088 
1089 #endif /* MBEDTLS_TIMING_C */
1090