1 /*
2  *  Benchmark demonstration program
3  *
4  *  Copyright The Mbed TLS Contributors
5  *  SPDX-License-Identifier: Apache-2.0
6  *
7  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
8  *  not use this file except in compliance with the License.
9  *  You may obtain a copy of the License at
10  *
11  *  http://www.apache.org/licenses/LICENSE-2.0
12  *
13  *  Unless required by applicable law or agreed to in writing, software
14  *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
15  *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  *  See the License for the specific language governing permissions and
17  *  limitations under the License.
18  */
19 
20 #if !defined(MBEDTLS_CONFIG_FILE)
21 #include "mbedtls/config.h"
22 #else
23 #include MBEDTLS_CONFIG_FILE
24 #endif
25 
26 #include "mbedtls/platform.h"
27 #if !defined(MBEDTLS_PLATFORM_C)
28 #include <stdio.h>
29 #include <stdlib.h>
30 #define mbedtls_exit       exit
31 #define mbedtls_printf     printf
32 #define mbedtls_free       free
33 #endif
34 
35 #if !defined(MBEDTLS_TIMING_C)
main(void)36 int main( void )
37 {
38     mbedtls_printf("MBEDTLS_TIMING_C not defined.\n");
39     mbedtls_exit( 0 );
40 }
41 #else
42 
43 #include <string.h>
44 #include <stdlib.h>
45 
46 #include "mbedtls/timing.h"
47 
48 #include "mbedtls/md4.h"
49 #include "mbedtls/md5.h"
50 #include "mbedtls/ripemd160.h"
51 #include "mbedtls/sha1.h"
52 #include "mbedtls/sha256.h"
53 #include "mbedtls/sha512.h"
54 
55 #include "mbedtls/arc4.h"
56 #include "mbedtls/des.h"
57 #include "mbedtls/aes.h"
58 #include "mbedtls/aria.h"
59 #include "mbedtls/blowfish.h"
60 #include "mbedtls/camellia.h"
61 #include "mbedtls/chacha20.h"
62 #include "mbedtls/gcm.h"
63 #include "mbedtls/ccm.h"
64 #include "mbedtls/chachapoly.h"
65 #include "mbedtls/cmac.h"
66 #include "mbedtls/poly1305.h"
67 
68 #include "mbedtls/havege.h"
69 #include "mbedtls/ctr_drbg.h"
70 #include "mbedtls/hmac_drbg.h"
71 
72 #include "mbedtls/rsa.h"
73 #include "mbedtls/dhm.h"
74 #include "mbedtls/ecdsa.h"
75 #include "mbedtls/ecdh.h"
76 
77 #include "mbedtls/error.h"
78 
79 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
80 #include "mbedtls/memory_buffer_alloc.h"
81 #endif
82 
83 /*
84  * For heap usage estimates, we need an estimate of the overhead per allocated
85  * block. ptmalloc2/3 (used in gnu libc for instance) uses 2 size_t per block,
86  * so use that as our baseline.
87  */
88 #define MEM_BLOCK_OVERHEAD  ( 2 * sizeof( size_t ) )
89 
90 /*
91  * Size to use for the alloc buffer if MEMORY_BUFFER_ALLOC_C is defined.
92  */
93 #define HEAP_SIZE       (1u << 16)  /* 64k */
94 
95 #define BUFSIZE         1024
96 #define HEADER_FORMAT   "  %-24s :  "
97 #define TITLE_LEN       25
98 
99 #define OPTIONS                                                         \
100     "md4, md5, ripemd160, sha1, sha256, sha512,\n"                      \
101     "arc4, des3, des, camellia, blowfish, chacha20,\n"                  \
102     "aes_cbc, aes_gcm, aes_ccm, aes_xts, chachapoly,\n"                 \
103     "aes_cmac, des3_cmac, poly1305\n"                                   \
104     "havege, ctr_drbg, hmac_drbg\n"                                     \
105     "rsa, dhm, ecdsa, ecdh.\n"
106 
107 #if defined(MBEDTLS_ERROR_C)
108 #define PRINT_ERROR                                                     \
109         mbedtls_strerror( ret, ( char * )tmp, sizeof( tmp ) );          \
110         mbedtls_printf( "FAILED: %s\n", tmp );
111 #else
112 #define PRINT_ERROR                                                     \
113         mbedtls_printf( "FAILED: -0x%04x\n", (unsigned int) -ret );
114 #endif
115 
116 #define TIME_AND_TSC( TITLE, CODE )                                     \
117 do {                                                                    \
118     unsigned long ii, jj, tsc;                                          \
119     int ret = 0;                                                        \
120                                                                         \
121     mbedtls_printf( HEADER_FORMAT, TITLE );                             \
122     fflush( stdout );                                                   \
123                                                                         \
124     mbedtls_set_alarm( 1 );                                             \
125     for( ii = 1; ret == 0 && ! mbedtls_timing_alarmed; ii++ )           \
126     {                                                                   \
127         ret = CODE;                                                     \
128     }                                                                   \
129                                                                         \
130     tsc = mbedtls_timing_hardclock();                                   \
131     for( jj = 0; ret == 0 && jj < 1024; jj++ )                          \
132     {                                                                   \
133         ret = CODE;                                                     \
134     }                                                                   \
135                                                                         \
136     if( ret != 0 )                                                      \
137     {                                                                   \
138         PRINT_ERROR;                                                    \
139     }                                                                   \
140     else                                                                \
141     {                                                                   \
142         mbedtls_printf( "%9lu KiB/s,  %9lu cycles/byte\n",              \
143                          ii * BUFSIZE / 1024,                           \
144                          ( mbedtls_timing_hardclock() - tsc )           \
145                          / ( jj * BUFSIZE ) );                          \
146     }                                                                   \
147 } while( 0 )
148 
149 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && defined(MBEDTLS_MEMORY_DEBUG)
150 
151 /* How much space to reserve for the title when printing heap usage results.
152  * Updated manually as the output of the following command:
153  *
154  *  sed -n 's/.*[T]IME_PUBLIC.*"\(.*\)",/\1/p' programs/test/benchmark.c |
155  *      awk '{print length+2}' | sort -rn | head -n1
156  *
157  * This computes the maximum length of a title +2 (because we appends "/s").
158  * (If the value is too small, the only consequence is poor alignement.) */
159 #define TITLE_SPACE 16
160 
161 #define MEMORY_MEASURE_INIT                                             \
162     size_t max_used, max_blocks, max_bytes;                             \
163     size_t prv_used, prv_blocks;                                        \
164     mbedtls_memory_buffer_alloc_cur_get( &prv_used, &prv_blocks );      \
165     mbedtls_memory_buffer_alloc_max_reset( );
166 
167 #define MEMORY_MEASURE_PRINT( title_len )                               \
168     mbedtls_memory_buffer_alloc_max_get( &max_used, &max_blocks );      \
169     ii = TITLE_SPACE > (title_len) ? TITLE_SPACE - (title_len) : 1;     \
170     while( ii-- ) mbedtls_printf( " " );                                \
171     max_used -= prv_used;                                               \
172     max_blocks -= prv_blocks;                                           \
173     max_bytes = max_used + MEM_BLOCK_OVERHEAD * max_blocks;             \
174     mbedtls_printf( "%6u heap bytes", (unsigned) max_bytes );
175 
176 #else
177 #define MEMORY_MEASURE_INIT
178 #define MEMORY_MEASURE_PRINT( title_len )
179 #endif
180 
181 #define TIME_PUBLIC( TITLE, TYPE, CODE )                                \
182 do {                                                                    \
183     unsigned long ii;                                                   \
184     int ret;                                                            \
185     MEMORY_MEASURE_INIT;                                                \
186                                                                         \
187     mbedtls_printf( HEADER_FORMAT, TITLE );                             \
188     fflush( stdout );                                                   \
189     mbedtls_set_alarm( 3 );                                             \
190                                                                         \
191     ret = 0;                                                            \
192     for( ii = 1; ! mbedtls_timing_alarmed && ! ret ; ii++ )             \
193     {                                                                   \
194         CODE;                                                           \
195     }                                                                   \
196                                                                         \
197     if( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED )               \
198     {                                                                   \
199         mbedtls_printf( "Feature Not Supported. Skipping.\n" );         \
200         ret = 0;                                                        \
201     }                                                                   \
202     else if( ret != 0 )                                                 \
203     {                                                                   \
204         PRINT_ERROR;                                                    \
205     }                                                                   \
206     else                                                                \
207     {                                                                   \
208         mbedtls_printf( "%6lu " TYPE "/s", ii / 3 );                    \
209         MEMORY_MEASURE_PRINT( sizeof( TYPE ) + 1 );                     \
210         mbedtls_printf( "\n" );                                         \
211     }                                                                   \
212 } while( 0 )
213 
myrand(void * rng_state,unsigned char * output,size_t len)214 static int myrand( void *rng_state, unsigned char *output, size_t len )
215 {
216     size_t use_len;
217     int rnd;
218 
219     if( rng_state != NULL )
220         rng_state  = NULL;
221 
222     while( len > 0 )
223     {
224         use_len = len;
225         if( use_len > sizeof(int) )
226             use_len = sizeof(int);
227 
228         rnd = rand();
229         memcpy( output, &rnd, use_len );
230         output += use_len;
231         len -= use_len;
232     }
233 
234     return( 0 );
235 }
236 
237 #define CHECK_AND_CONTINUE( R )                                         \
238     {                                                                   \
239         int CHECK_AND_CONTINUE_ret = ( R );                             \
240         if( CHECK_AND_CONTINUE_ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED ) { \
241             mbedtls_printf( "Feature not supported. Skipping.\n" );     \
242             continue;                                                   \
243         }                                                               \
244         else if( CHECK_AND_CONTINUE_ret != 0 ) {                        \
245             mbedtls_exit( 1 );                                          \
246         }                                                               \
247     }
248 
249 /*
250  * Clear some memory that was used to prepare the context
251  */
252 #if defined(MBEDTLS_ECP_C)
ecp_clear_precomputed(mbedtls_ecp_group * grp)253 void ecp_clear_precomputed( mbedtls_ecp_group *grp )
254 {
255     if( grp->T != NULL )
256     {
257         size_t i;
258         for( i = 0; i < grp->T_size; i++ )
259             mbedtls_ecp_point_free( &grp->T[i] );
260         mbedtls_free( grp->T );
261     }
262     grp->T = NULL;
263     grp->T_size = 0;
264 }
265 #else
266 #define ecp_clear_precomputed( g )
267 #endif
268 
269 #if defined(MBEDTLS_ECP_C)
set_ecp_curve(const char * string,mbedtls_ecp_curve_info * curve)270 static int set_ecp_curve( const char *string, mbedtls_ecp_curve_info *curve )
271 {
272     const mbedtls_ecp_curve_info *found =
273         mbedtls_ecp_curve_info_from_name( string );
274     if( found != NULL )
275     {
276         *curve = *found;
277         return( 1 );
278     }
279     else
280         return( 0 );
281 }
282 #endif
283 
284 unsigned char buf[BUFSIZE];
285 
286 typedef struct {
287     char md4, md5, ripemd160, sha1, sha256, sha512,
288          arc4, des3, des,
289          aes_cbc, aes_gcm, aes_ccm, aes_xts, chachapoly,
290          aes_cmac, des3_cmac,
291          aria, camellia, blowfish, chacha20,
292          poly1305,
293          havege, ctr_drbg, hmac_drbg,
294          rsa, dhm, ecdsa, ecdh;
295 } todo_list;
296 
297 
main(int argc,char * argv[])298 int main( int argc, char *argv[] )
299 {
300     int i;
301     unsigned char tmp[200];
302     char title[TITLE_LEN];
303     todo_list todo;
304 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
305     unsigned char alloc_buf[HEAP_SIZE] = { 0 };
306 #endif
307 #if defined(MBEDTLS_ECP_C)
308     mbedtls_ecp_curve_info single_curve[2] = {
309         { MBEDTLS_ECP_DP_NONE, 0, 0, NULL },
310         { MBEDTLS_ECP_DP_NONE, 0, 0, NULL },
311     };
312     const mbedtls_ecp_curve_info *curve_list = mbedtls_ecp_curve_list( );
313 #endif
314 
315 #if defined(MBEDTLS_ECP_C)
316     (void) curve_list; /* Unused in some configurations where no benchmark uses ECC */
317 #endif
318 
319     if( argc <= 1 )
320     {
321         memset( &todo, 1, sizeof( todo ) );
322     }
323     else
324     {
325         memset( &todo, 0, sizeof( todo ) );
326 
327         for( i = 1; i < argc; i++ )
328         {
329             if( strcmp( argv[i], "md4" ) == 0 )
330                 todo.md4 = 1;
331             else if( strcmp( argv[i], "md5" ) == 0 )
332                 todo.md5 = 1;
333             else if( strcmp( argv[i], "ripemd160" ) == 0 )
334                 todo.ripemd160 = 1;
335             else if( strcmp( argv[i], "sha1" ) == 0 )
336                 todo.sha1 = 1;
337             else if( strcmp( argv[i], "sha256" ) == 0 )
338                 todo.sha256 = 1;
339             else if( strcmp( argv[i], "sha512" ) == 0 )
340                 todo.sha512 = 1;
341             else if( strcmp( argv[i], "arc4" ) == 0 )
342                 todo.arc4 = 1;
343             else if( strcmp( argv[i], "des3" ) == 0 )
344                 todo.des3 = 1;
345             else if( strcmp( argv[i], "des" ) == 0 )
346                 todo.des = 1;
347             else if( strcmp( argv[i], "aes_cbc" ) == 0 )
348                 todo.aes_cbc = 1;
349             else if( strcmp( argv[i], "aes_xts" ) == 0 )
350                 todo.aes_xts = 1;
351             else if( strcmp( argv[i], "aes_gcm" ) == 0 )
352                 todo.aes_gcm = 1;
353             else if( strcmp( argv[i], "aes_ccm" ) == 0 )
354                 todo.aes_ccm = 1;
355             else if( strcmp( argv[i], "chachapoly" ) == 0 )
356                 todo.chachapoly = 1;
357             else if( strcmp( argv[i], "aes_cmac" ) == 0 )
358                 todo.aes_cmac = 1;
359             else if( strcmp( argv[i], "des3_cmac" ) == 0 )
360                 todo.des3_cmac = 1;
361             else if( strcmp( argv[i], "aria" ) == 0 )
362                 todo.aria = 1;
363             else if( strcmp( argv[i], "camellia" ) == 0 )
364                 todo.camellia = 1;
365             else if( strcmp( argv[i], "blowfish" ) == 0 )
366                 todo.blowfish = 1;
367             else if( strcmp( argv[i], "chacha20" ) == 0 )
368                 todo.chacha20 = 1;
369             else if( strcmp( argv[i], "poly1305" ) == 0 )
370                 todo.poly1305 = 1;
371             else if( strcmp( argv[i], "havege" ) == 0 )
372                 todo.havege = 1;
373             else if( strcmp( argv[i], "ctr_drbg" ) == 0 )
374                 todo.ctr_drbg = 1;
375             else if( strcmp( argv[i], "hmac_drbg" ) == 0 )
376                 todo.hmac_drbg = 1;
377             else if( strcmp( argv[i], "rsa" ) == 0 )
378                 todo.rsa = 1;
379             else if( strcmp( argv[i], "dhm" ) == 0 )
380                 todo.dhm = 1;
381             else if( strcmp( argv[i], "ecdsa" ) == 0 )
382                 todo.ecdsa = 1;
383             else if( strcmp( argv[i], "ecdh" ) == 0 )
384                 todo.ecdh = 1;
385 #if defined(MBEDTLS_ECP_C)
386             else if( set_ecp_curve( argv[i], single_curve ) )
387                 curve_list = single_curve;
388 #endif
389             else
390             {
391                 mbedtls_printf( "Unrecognized option: %s\n", argv[i] );
392                 mbedtls_printf( "Available options: " OPTIONS );
393             }
394         }
395     }
396 
397     mbedtls_printf( "\n" );
398 
399 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
400     mbedtls_memory_buffer_alloc_init( alloc_buf, sizeof( alloc_buf ) );
401 #endif
402     memset( buf, 0xAA, sizeof( buf ) );
403     memset( tmp, 0xBB, sizeof( tmp ) );
404 
405 #if defined(MBEDTLS_MD4_C)
406     if( todo.md4 )
407         TIME_AND_TSC( "MD4", mbedtls_md4_ret( buf, BUFSIZE, tmp ) );
408 #endif
409 
410 #if defined(MBEDTLS_MD5_C)
411     if( todo.md5 )
412         TIME_AND_TSC( "MD5", mbedtls_md5_ret( buf, BUFSIZE, tmp ) );
413 #endif
414 
415 #if defined(MBEDTLS_RIPEMD160_C)
416     if( todo.ripemd160 )
417         TIME_AND_TSC( "RIPEMD160", mbedtls_ripemd160_ret( buf, BUFSIZE, tmp ) );
418 #endif
419 
420 #if defined(MBEDTLS_SHA1_C)
421     if( todo.sha1 )
422         TIME_AND_TSC( "SHA-1", mbedtls_sha1_ret( buf, BUFSIZE, tmp ) );
423 #endif
424 
425 #if defined(MBEDTLS_SHA256_C)
426     if( todo.sha256 )
427         TIME_AND_TSC( "SHA-256", mbedtls_sha256_ret( buf, BUFSIZE, tmp, 0 ) );
428 #endif
429 
430 #if defined(MBEDTLS_SHA512_C)
431     if( todo.sha512 )
432         TIME_AND_TSC( "SHA-512", mbedtls_sha512_ret( buf, BUFSIZE, tmp, 0 ) );
433 #endif
434 
435 #if defined(MBEDTLS_ARC4_C)
436     if( todo.arc4 )
437     {
438         mbedtls_arc4_context arc4;
439         mbedtls_arc4_init( &arc4 );
440         mbedtls_arc4_setup( &arc4, tmp, 32 );
441         TIME_AND_TSC( "ARC4", mbedtls_arc4_crypt( &arc4, BUFSIZE, buf, buf ) );
442         mbedtls_arc4_free( &arc4 );
443     }
444 #endif
445 
446 #if defined(MBEDTLS_DES_C)
447 #if defined(MBEDTLS_CIPHER_MODE_CBC)
448     if( todo.des3 )
449     {
450         mbedtls_des3_context des3;
451         mbedtls_des3_init( &des3 );
452         if( mbedtls_des3_set3key_enc( &des3, tmp ) != 0 )
453             mbedtls_exit( 1 );
454         TIME_AND_TSC( "3DES",
455                 mbedtls_des3_crypt_cbc( &des3, MBEDTLS_DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
456         mbedtls_des3_free( &des3 );
457     }
458 
459     if( todo.des )
460     {
461         mbedtls_des_context des;
462         mbedtls_des_init( &des );
463         if( mbedtls_des_setkey_enc( &des, tmp ) != 0 )
464             mbedtls_exit( 1 );
465         TIME_AND_TSC( "DES",
466                 mbedtls_des_crypt_cbc( &des, MBEDTLS_DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
467         mbedtls_des_free( &des );
468     }
469 
470 #endif /* MBEDTLS_CIPHER_MODE_CBC */
471 #if defined(MBEDTLS_CMAC_C)
472     if( todo.des3_cmac )
473     {
474         unsigned char output[8];
475         const mbedtls_cipher_info_t *cipher_info;
476 
477         memset( buf, 0, sizeof( buf ) );
478         memset( tmp, 0, sizeof( tmp ) );
479 
480         cipher_info = mbedtls_cipher_info_from_type( MBEDTLS_CIPHER_DES_EDE3_ECB );
481 
482         TIME_AND_TSC( "3DES-CMAC",
483                       mbedtls_cipher_cmac( cipher_info, tmp, 192, buf,
484                       BUFSIZE, output ) );
485     }
486 #endif /* MBEDTLS_CMAC_C */
487 #endif /* MBEDTLS_DES_C */
488 
489 #if defined(MBEDTLS_AES_C)
490 #if defined(MBEDTLS_CIPHER_MODE_CBC)
491     if( todo.aes_cbc )
492     {
493         int keysize;
494         mbedtls_aes_context aes;
495         mbedtls_aes_init( &aes );
496         for( keysize = 128; keysize <= 256; keysize += 64 )
497         {
498             mbedtls_snprintf( title, sizeof( title ), "AES-CBC-%d", keysize );
499 
500             memset( buf, 0, sizeof( buf ) );
501             memset( tmp, 0, sizeof( tmp ) );
502             CHECK_AND_CONTINUE( mbedtls_aes_setkey_enc( &aes, tmp, keysize ) );
503 
504             TIME_AND_TSC( title,
505                 mbedtls_aes_crypt_cbc( &aes, MBEDTLS_AES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
506         }
507         mbedtls_aes_free( &aes );
508     }
509 #endif
510 #if defined(MBEDTLS_CIPHER_MODE_XTS)
511     if( todo.aes_xts )
512     {
513         int keysize;
514         mbedtls_aes_xts_context ctx;
515 
516         mbedtls_aes_xts_init( &ctx );
517         for( keysize = 128; keysize <= 256; keysize += 128 )
518         {
519             mbedtls_snprintf( title, sizeof( title ), "AES-XTS-%d", keysize );
520 
521             memset( buf, 0, sizeof( buf ) );
522             memset( tmp, 0, sizeof( tmp ) );
523             CHECK_AND_CONTINUE( mbedtls_aes_xts_setkey_enc( &ctx, tmp, keysize * 2 ) );
524 
525             TIME_AND_TSC( title,
526                     mbedtls_aes_crypt_xts( &ctx, MBEDTLS_AES_ENCRYPT, BUFSIZE,
527                                            tmp, buf, buf ) );
528 
529             mbedtls_aes_xts_free( &ctx );
530         }
531     }
532 #endif
533 #if defined(MBEDTLS_GCM_C)
534     if( todo.aes_gcm )
535     {
536         int keysize;
537         mbedtls_gcm_context gcm;
538 
539         mbedtls_gcm_init( &gcm );
540         for( keysize = 128; keysize <= 256; keysize += 64 )
541         {
542             mbedtls_snprintf( title, sizeof( title ), "AES-GCM-%d", keysize );
543 
544             memset( buf, 0, sizeof( buf ) );
545             memset( tmp, 0, sizeof( tmp ) );
546             mbedtls_gcm_setkey( &gcm, MBEDTLS_CIPHER_ID_AES, tmp, keysize );
547 
548             TIME_AND_TSC( title,
549                     mbedtls_gcm_crypt_and_tag( &gcm, MBEDTLS_GCM_ENCRYPT, BUFSIZE, tmp,
550                         12, NULL, 0, buf, buf, 16, tmp ) );
551 
552             mbedtls_gcm_free( &gcm );
553         }
554     }
555 #endif
556 #if defined(MBEDTLS_CCM_C)
557     if( todo.aes_ccm )
558     {
559         int keysize;
560         mbedtls_ccm_context ccm;
561 
562         mbedtls_ccm_init( &ccm );
563         for( keysize = 128; keysize <= 256; keysize += 64 )
564         {
565             mbedtls_snprintf( title, sizeof( title ), "AES-CCM-%d", keysize );
566 
567             memset( buf, 0, sizeof( buf ) );
568             memset( tmp, 0, sizeof( tmp ) );
569             mbedtls_ccm_setkey( &ccm, MBEDTLS_CIPHER_ID_AES, tmp, keysize );
570 
571             TIME_AND_TSC( title,
572                     mbedtls_ccm_encrypt_and_tag( &ccm, BUFSIZE, tmp,
573                         12, NULL, 0, buf, buf, tmp, 16 ) );
574 
575             mbedtls_ccm_free( &ccm );
576         }
577     }
578 #endif
579 #if defined(MBEDTLS_CHACHAPOLY_C)
580     if( todo.chachapoly )
581     {
582         mbedtls_chachapoly_context chachapoly;
583 
584         mbedtls_chachapoly_init( &chachapoly );
585         memset( buf, 0, sizeof( buf ) );
586         memset( tmp, 0, sizeof( tmp ) );
587 
588         mbedtls_snprintf( title, sizeof( title ), "ChaCha20-Poly1305" );
589 
590         mbedtls_chachapoly_setkey( &chachapoly, tmp );
591 
592         TIME_AND_TSC( title,
593                 mbedtls_chachapoly_encrypt_and_tag( &chachapoly,
594                     BUFSIZE, tmp, NULL, 0, buf, buf, tmp ) );
595 
596         mbedtls_chachapoly_free( &chachapoly );
597     }
598 #endif
599 #if defined(MBEDTLS_CMAC_C)
600     if( todo.aes_cmac )
601     {
602         unsigned char output[16];
603         const mbedtls_cipher_info_t *cipher_info;
604         mbedtls_cipher_type_t cipher_type;
605         int keysize;
606 
607         for( keysize = 128, cipher_type = MBEDTLS_CIPHER_AES_128_ECB;
608              keysize <= 256;
609              keysize += 64, cipher_type++ )
610         {
611             mbedtls_snprintf( title, sizeof( title ), "AES-CMAC-%d", keysize );
612 
613             memset( buf, 0, sizeof( buf ) );
614             memset( tmp, 0, sizeof( tmp ) );
615 
616             cipher_info = mbedtls_cipher_info_from_type( cipher_type );
617 
618             TIME_AND_TSC( title,
619                           mbedtls_cipher_cmac( cipher_info, tmp, keysize,
620                                                buf, BUFSIZE, output ) );
621         }
622 
623         memset( buf, 0, sizeof( buf ) );
624         memset( tmp, 0, sizeof( tmp ) );
625         TIME_AND_TSC( "AES-CMAC-PRF-128",
626                       mbedtls_aes_cmac_prf_128( tmp, 16, buf, BUFSIZE,
627                                                 output ) );
628     }
629 #endif /* MBEDTLS_CMAC_C */
630 #endif /* MBEDTLS_AES_C */
631 
632 #if defined(MBEDTLS_ARIA_C) && defined(MBEDTLS_CIPHER_MODE_CBC)
633     if( todo.aria )
634     {
635         int keysize;
636         mbedtls_aria_context aria;
637         mbedtls_aria_init( &aria );
638         for( keysize = 128; keysize <= 256; keysize += 64 )
639         {
640             mbedtls_snprintf( title, sizeof( title ), "ARIA-CBC-%d", keysize );
641 
642             memset( buf, 0, sizeof( buf ) );
643             memset( tmp, 0, sizeof( tmp ) );
644             mbedtls_aria_setkey_enc( &aria, tmp, keysize );
645 
646             TIME_AND_TSC( title,
647                     mbedtls_aria_crypt_cbc( &aria, MBEDTLS_ARIA_ENCRYPT,
648                         BUFSIZE, tmp, buf, buf ) );
649         }
650         mbedtls_aria_free( &aria );
651     }
652 #endif
653 
654 #if defined(MBEDTLS_CAMELLIA_C) && defined(MBEDTLS_CIPHER_MODE_CBC)
655     if( todo.camellia )
656     {
657         int keysize;
658         mbedtls_camellia_context camellia;
659         mbedtls_camellia_init( &camellia );
660         for( keysize = 128; keysize <= 256; keysize += 64 )
661         {
662             mbedtls_snprintf( title, sizeof( title ), "CAMELLIA-CBC-%d", keysize );
663 
664             memset( buf, 0, sizeof( buf ) );
665             memset( tmp, 0, sizeof( tmp ) );
666             mbedtls_camellia_setkey_enc( &camellia, tmp, keysize );
667 
668             TIME_AND_TSC( title,
669                     mbedtls_camellia_crypt_cbc( &camellia, MBEDTLS_CAMELLIA_ENCRYPT,
670                         BUFSIZE, tmp, buf, buf ) );
671         }
672         mbedtls_camellia_free( &camellia );
673     }
674 #endif
675 
676 #if defined(MBEDTLS_CHACHA20_C)
677     if ( todo.chacha20 )
678     {
679         TIME_AND_TSC( "ChaCha20", mbedtls_chacha20_crypt( buf, buf, 0U, BUFSIZE, buf, buf ) );
680     }
681 #endif
682 
683 #if defined(MBEDTLS_POLY1305_C)
684     if ( todo.poly1305 )
685     {
686         TIME_AND_TSC( "Poly1305", mbedtls_poly1305_mac( buf, buf, BUFSIZE, buf ) );
687     }
688 #endif
689 
690 #if defined(MBEDTLS_BLOWFISH_C) && defined(MBEDTLS_CIPHER_MODE_CBC)
691     if( todo.blowfish )
692     {
693         int keysize;
694         mbedtls_blowfish_context blowfish;
695         mbedtls_blowfish_init( &blowfish );
696 
697         for( keysize = 128; keysize <= 256; keysize += 64 )
698         {
699             mbedtls_snprintf( title, sizeof( title ), "BLOWFISH-CBC-%d", keysize );
700 
701             memset( buf, 0, sizeof( buf ) );
702             memset( tmp, 0, sizeof( tmp ) );
703             mbedtls_blowfish_setkey( &blowfish, tmp, keysize );
704 
705             TIME_AND_TSC( title,
706                     mbedtls_blowfish_crypt_cbc( &blowfish, MBEDTLS_BLOWFISH_ENCRYPT, BUFSIZE,
707                         tmp, buf, buf ) );
708         }
709 
710         mbedtls_blowfish_free( &blowfish );
711     }
712 #endif
713 
714 #if defined(MBEDTLS_HAVEGE_C)
715     if( todo.havege )
716     {
717         mbedtls_havege_state hs;
718         mbedtls_havege_init( &hs );
719         TIME_AND_TSC( "HAVEGE", mbedtls_havege_random( &hs, buf, BUFSIZE ) );
720         mbedtls_havege_free( &hs );
721     }
722 #endif
723 
724 #if defined(MBEDTLS_CTR_DRBG_C)
725     if( todo.ctr_drbg )
726     {
727         mbedtls_ctr_drbg_context ctr_drbg;
728 
729         mbedtls_ctr_drbg_init( &ctr_drbg );
730         if( mbedtls_ctr_drbg_seed( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
731             mbedtls_exit(1);
732         TIME_AND_TSC( "CTR_DRBG (NOPR)",
733                 mbedtls_ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) );
734         mbedtls_ctr_drbg_free( &ctr_drbg );
735 
736         mbedtls_ctr_drbg_init( &ctr_drbg );
737         if( mbedtls_ctr_drbg_seed( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
738             mbedtls_exit(1);
739         mbedtls_ctr_drbg_set_prediction_resistance( &ctr_drbg, MBEDTLS_CTR_DRBG_PR_ON );
740         TIME_AND_TSC( "CTR_DRBG (PR)",
741                 mbedtls_ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) );
742         mbedtls_ctr_drbg_free( &ctr_drbg );
743     }
744 #endif
745 
746 #if defined(MBEDTLS_HMAC_DRBG_C)
747     if( todo.hmac_drbg )
748     {
749         mbedtls_hmac_drbg_context hmac_drbg;
750         const mbedtls_md_info_t *md_info;
751 
752         mbedtls_hmac_drbg_init( &hmac_drbg );
753 
754 #if defined(MBEDTLS_SHA1_C)
755         if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ) ) == NULL )
756             mbedtls_exit(1);
757 
758         if( mbedtls_hmac_drbg_seed( &hmac_drbg, md_info, myrand, NULL, NULL, 0 ) != 0 )
759             mbedtls_exit(1);
760         TIME_AND_TSC( "HMAC_DRBG SHA-1 (NOPR)",
761                 mbedtls_hmac_drbg_random( &hmac_drbg, buf, BUFSIZE ) );
762 
763         if( mbedtls_hmac_drbg_seed( &hmac_drbg, md_info, myrand, NULL, NULL, 0 ) != 0 )
764             mbedtls_exit(1);
765         mbedtls_hmac_drbg_set_prediction_resistance( &hmac_drbg,
766                                              MBEDTLS_HMAC_DRBG_PR_ON );
767         TIME_AND_TSC( "HMAC_DRBG SHA-1 (PR)",
768                 mbedtls_hmac_drbg_random( &hmac_drbg, buf, BUFSIZE ) );
769 #endif
770 
771 #if defined(MBEDTLS_SHA256_C)
772         if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ) ) == NULL )
773             mbedtls_exit(1);
774 
775         if( mbedtls_hmac_drbg_seed( &hmac_drbg, md_info, myrand, NULL, NULL, 0 ) != 0 )
776             mbedtls_exit(1);
777         TIME_AND_TSC( "HMAC_DRBG SHA-256 (NOPR)",
778                 mbedtls_hmac_drbg_random( &hmac_drbg, buf, BUFSIZE ) );
779 
780         if( mbedtls_hmac_drbg_seed( &hmac_drbg, md_info, myrand, NULL, NULL, 0 ) != 0 )
781             mbedtls_exit(1);
782         mbedtls_hmac_drbg_set_prediction_resistance( &hmac_drbg,
783                                              MBEDTLS_HMAC_DRBG_PR_ON );
784         TIME_AND_TSC( "HMAC_DRBG SHA-256 (PR)",
785                 mbedtls_hmac_drbg_random( &hmac_drbg, buf, BUFSIZE ) );
786 #endif
787         mbedtls_hmac_drbg_free( &hmac_drbg );
788     }
789 #endif
790 
791 #if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME)
792     if( todo.rsa )
793     {
794         int keysize;
795         mbedtls_rsa_context rsa;
796         for( keysize = 2048; keysize <= 4096; keysize *= 2 )
797         {
798             mbedtls_snprintf( title, sizeof( title ), "RSA-%d", keysize );
799 
800             mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
801             mbedtls_rsa_gen_key( &rsa, myrand, NULL, keysize, 65537 );
802 
803             TIME_PUBLIC( title, " public",
804                     buf[0] = 0;
805                     ret = mbedtls_rsa_public( &rsa, buf, buf ) );
806 
807             TIME_PUBLIC( title, "private",
808                     buf[0] = 0;
809                     ret = mbedtls_rsa_private( &rsa, myrand, NULL, buf, buf ) );
810 
811             mbedtls_rsa_free( &rsa );
812         }
813     }
814 #endif
815 
816 #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_BIGNUM_C)
817     if( todo.dhm )
818     {
819         int dhm_sizes[] = { 2048, 3072 };
820         static const unsigned char dhm_P_2048[] =
821             MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN;
822         static const unsigned char dhm_P_3072[] =
823             MBEDTLS_DHM_RFC3526_MODP_3072_P_BIN;
824         static const unsigned char dhm_G_2048[] =
825             MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN;
826         static const unsigned char dhm_G_3072[] =
827             MBEDTLS_DHM_RFC3526_MODP_3072_G_BIN;
828 
829         const unsigned char *dhm_P[] = { dhm_P_2048, dhm_P_3072 };
830         const size_t dhm_P_size[] = { sizeof( dhm_P_2048 ),
831                                       sizeof( dhm_P_3072 ) };
832 
833         const unsigned char *dhm_G[] = { dhm_G_2048, dhm_G_3072 };
834         const size_t dhm_G_size[] = { sizeof( dhm_G_2048 ),
835                                       sizeof( dhm_G_3072 ) };
836 
837         mbedtls_dhm_context dhm;
838         size_t olen;
839         for( i = 0; (size_t) i < sizeof( dhm_sizes ) / sizeof( dhm_sizes[0] ); i++ )
840         {
841             mbedtls_dhm_init( &dhm );
842 
843             if( mbedtls_mpi_read_binary( &dhm.P, dhm_P[i],
844                                          dhm_P_size[i] ) != 0 ||
845                 mbedtls_mpi_read_binary( &dhm.G, dhm_G[i],
846                                          dhm_G_size[i] ) != 0 )
847             {
848                 mbedtls_exit( 1 );
849             }
850 
851             dhm.len = mbedtls_mpi_size( &dhm.P );
852             mbedtls_dhm_make_public( &dhm, (int) dhm.len, buf, dhm.len, myrand, NULL );
853             if( mbedtls_mpi_copy( &dhm.GY, &dhm.GX ) != 0 )
854                 mbedtls_exit( 1 );
855 
856             mbedtls_snprintf( title, sizeof( title ), "DHE-%d", dhm_sizes[i] );
857             TIME_PUBLIC( title, "handshake",
858                     ret |= mbedtls_dhm_make_public( &dhm, (int) dhm.len, buf, dhm.len,
859                                             myrand, NULL );
860                     ret |= mbedtls_dhm_calc_secret( &dhm, buf, sizeof( buf ), &olen, myrand, NULL ) );
861 
862             mbedtls_snprintf( title, sizeof( title ), "DH-%d", dhm_sizes[i] );
863             TIME_PUBLIC( title, "handshake",
864                     ret |= mbedtls_dhm_calc_secret( &dhm, buf, sizeof( buf ), &olen, myrand, NULL ) );
865 
866             mbedtls_dhm_free( &dhm );
867         }
868     }
869 #endif
870 
871 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_SHA256_C)
872     if( todo.ecdsa )
873     {
874         mbedtls_ecdsa_context ecdsa;
875         const mbedtls_ecp_curve_info *curve_info;
876         size_t sig_len;
877 
878         memset( buf, 0x2A, sizeof( buf ) );
879 
880         for( curve_info = curve_list;
881              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
882              curve_info++ )
883         {
884             if( ! mbedtls_ecdsa_can_do( curve_info->grp_id ) )
885                 continue;
886 
887             mbedtls_ecdsa_init( &ecdsa );
888 
889             if( mbedtls_ecdsa_genkey( &ecdsa, curve_info->grp_id, myrand, NULL ) != 0 )
890                 mbedtls_exit( 1 );
891             ecp_clear_precomputed( &ecdsa.grp );
892 
893             mbedtls_snprintf( title, sizeof( title ), "ECDSA-%s",
894                                               curve_info->name );
895             TIME_PUBLIC( title, "sign",
896                     ret = mbedtls_ecdsa_write_signature( &ecdsa, MBEDTLS_MD_SHA256, buf, curve_info->bit_size,
897                                                 tmp, &sig_len, myrand, NULL ) );
898 
899             mbedtls_ecdsa_free( &ecdsa );
900         }
901 
902         for( curve_info = curve_list;
903              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
904              curve_info++ )
905         {
906             if( ! mbedtls_ecdsa_can_do( curve_info->grp_id ) )
907                 continue;
908 
909             mbedtls_ecdsa_init( &ecdsa );
910 
911             if( mbedtls_ecdsa_genkey( &ecdsa, curve_info->grp_id, myrand, NULL ) != 0 ||
912                 mbedtls_ecdsa_write_signature( &ecdsa, MBEDTLS_MD_SHA256, buf, curve_info->bit_size,
913                                                tmp, &sig_len, myrand, NULL ) != 0 )
914             {
915                 mbedtls_exit( 1 );
916             }
917             ecp_clear_precomputed( &ecdsa.grp );
918 
919             mbedtls_snprintf( title, sizeof( title ), "ECDSA-%s",
920                                               curve_info->name );
921             TIME_PUBLIC( title, "verify",
922                     ret = mbedtls_ecdsa_read_signature( &ecdsa, buf, curve_info->bit_size,
923                                                 tmp, sig_len ) );
924 
925             mbedtls_ecdsa_free( &ecdsa );
926         }
927     }
928 #endif
929 
930 #if defined(MBEDTLS_ECDH_C) && defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
931     if( todo.ecdh )
932     {
933         mbedtls_ecdh_context ecdh;
934         mbedtls_mpi z;
935         const mbedtls_ecp_curve_info montgomery_curve_list[] = {
936 #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
937             { MBEDTLS_ECP_DP_CURVE25519, 0, 0, "Curve25519" },
938 #endif
939 #if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
940             { MBEDTLS_ECP_DP_CURVE448, 0, 0, "Curve448" },
941 #endif
942             { MBEDTLS_ECP_DP_NONE, 0, 0, 0 }
943         };
944         const mbedtls_ecp_curve_info *curve_info;
945         size_t olen;
946         const mbedtls_ecp_curve_info *selected_montgomery_curve_list =
947             montgomery_curve_list;
948 
949         if( curve_list == (const mbedtls_ecp_curve_info*) &single_curve )
950         {
951             mbedtls_ecp_group grp;
952             mbedtls_ecp_group_init( &grp );
953             if( mbedtls_ecp_group_load( &grp, curve_list->grp_id ) != 0 )
954                 mbedtls_exit( 1 );
955             if( mbedtls_ecp_get_type( &grp ) == MBEDTLS_ECP_TYPE_MONTGOMERY )
956                 selected_montgomery_curve_list = single_curve;
957             else /* empty list */
958                 selected_montgomery_curve_list = single_curve + 1;
959             mbedtls_ecp_group_free( &grp );
960         }
961 
962         for( curve_info = curve_list;
963              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
964              curve_info++ )
965         {
966             if( ! mbedtls_ecdh_can_do( curve_info->grp_id ) )
967                 continue;
968 
969             mbedtls_ecdh_init( &ecdh );
970 
971             CHECK_AND_CONTINUE( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) );
972             CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
973                                                     myrand, NULL ) );
974             CHECK_AND_CONTINUE( mbedtls_ecp_copy( &ecdh.Qp, &ecdh.Q ) );
975             ecp_clear_precomputed( &ecdh.grp );
976 
977             mbedtls_snprintf( title, sizeof( title ), "ECDHE-%s",
978                                               curve_info->name );
979             TIME_PUBLIC( title, "handshake",
980                     CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
981                                              myrand, NULL ) );
982                     CHECK_AND_CONTINUE( mbedtls_ecdh_calc_secret( &ecdh, &olen, buf, sizeof( buf ),
983                                              myrand, NULL ) ) );
984             mbedtls_ecdh_free( &ecdh );
985         }
986 
987         /* Montgomery curves need to be handled separately */
988         for ( curve_info = selected_montgomery_curve_list;
989               curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
990               curve_info++ )
991         {
992             mbedtls_ecdh_init( &ecdh );
993             mbedtls_mpi_init( &z );
994 
995             CHECK_AND_CONTINUE( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) );
996             CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Qp, myrand, NULL ) );
997 
998             mbedtls_snprintf( title, sizeof(title), "ECDHE-%s",
999                               curve_info->name );
1000             TIME_PUBLIC(  title, "handshake",
1001                     CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Q,
1002                                             myrand, NULL ) );
1003                     CHECK_AND_CONTINUE( mbedtls_ecdh_compute_shared( &ecdh.grp, &z, &ecdh.Qp, &ecdh.d,
1004                                                 myrand, NULL ) ) );
1005 
1006             mbedtls_ecdh_free( &ecdh );
1007             mbedtls_mpi_free( &z );
1008         }
1009 
1010         for( curve_info = curve_list;
1011              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
1012              curve_info++ )
1013         {
1014             if( ! mbedtls_ecdh_can_do( curve_info->grp_id ) )
1015                 continue;
1016 
1017             mbedtls_ecdh_init( &ecdh );
1018 
1019             CHECK_AND_CONTINUE( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) );
1020             CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
1021                                   myrand, NULL ) );
1022             CHECK_AND_CONTINUE( mbedtls_ecp_copy( &ecdh.Qp, &ecdh.Q ) );
1023             CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
1024                                   myrand, NULL ) );
1025             ecp_clear_precomputed( &ecdh.grp );
1026 
1027             mbedtls_snprintf( title, sizeof( title ), "ECDH-%s",
1028                                               curve_info->name );
1029             TIME_PUBLIC( title, "handshake",
1030                     CHECK_AND_CONTINUE( mbedtls_ecdh_calc_secret( &ecdh, &olen, buf, sizeof( buf ),
1031                                              myrand, NULL ) ) );
1032             mbedtls_ecdh_free( &ecdh );
1033         }
1034 
1035         /* Montgomery curves need to be handled separately */
1036         for ( curve_info = selected_montgomery_curve_list;
1037               curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
1038               curve_info++)
1039         {
1040             mbedtls_ecdh_init( &ecdh );
1041             mbedtls_mpi_init( &z );
1042 
1043             CHECK_AND_CONTINUE( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) );
1044             CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Qp,
1045                                  myrand, NULL ) );
1046             CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Q, myrand, NULL ) );
1047 
1048             mbedtls_snprintf( title, sizeof(title), "ECDH-%s",
1049                               curve_info->name );
1050             TIME_PUBLIC(  title, "handshake",
1051                     CHECK_AND_CONTINUE( mbedtls_ecdh_compute_shared( &ecdh.grp, &z, &ecdh.Qp, &ecdh.d,
1052                                                 myrand, NULL ) ) );
1053 
1054             mbedtls_ecdh_free( &ecdh );
1055             mbedtls_mpi_free( &z );
1056         }
1057     }
1058 #endif
1059 
1060 #if defined(MBEDTLS_ECDH_C)
1061     if( todo.ecdh )
1062     {
1063         mbedtls_ecdh_context ecdh_srv, ecdh_cli;
1064         unsigned char buf_srv[BUFSIZE], buf_cli[BUFSIZE];
1065         const mbedtls_ecp_curve_info *curve_info;
1066         size_t olen;
1067 
1068         for( curve_info = curve_list;
1069             curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
1070             curve_info++ )
1071         {
1072             if( ! mbedtls_ecdh_can_do( curve_info->grp_id ) )
1073                 continue;
1074 
1075             mbedtls_ecdh_init( &ecdh_srv );
1076             mbedtls_ecdh_init( &ecdh_cli );
1077 
1078             mbedtls_snprintf( title, sizeof( title ), "ECDHE-%s", curve_info->name );
1079             TIME_PUBLIC( title, "full handshake",
1080                 const unsigned char * p_srv = buf_srv;
1081 
1082                 CHECK_AND_CONTINUE( mbedtls_ecdh_setup( &ecdh_srv, curve_info->grp_id ) );
1083                 CHECK_AND_CONTINUE( mbedtls_ecdh_make_params( &ecdh_srv, &olen, buf_srv, sizeof( buf_srv ), myrand, NULL ) );
1084 
1085                 CHECK_AND_CONTINUE( mbedtls_ecdh_read_params( &ecdh_cli, &p_srv, p_srv + olen ) );
1086                 CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh_cli, &olen, buf_cli, sizeof( buf_cli ), myrand, NULL ) );
1087 
1088                 CHECK_AND_CONTINUE( mbedtls_ecdh_read_public( &ecdh_srv, buf_cli, olen ) );
1089                 CHECK_AND_CONTINUE( mbedtls_ecdh_calc_secret( &ecdh_srv, &olen, buf_srv, sizeof( buf_srv ), myrand, NULL ) );
1090 
1091                 CHECK_AND_CONTINUE( mbedtls_ecdh_calc_secret( &ecdh_cli, &olen, buf_cli, sizeof( buf_cli ), myrand, NULL ) );
1092                 mbedtls_ecdh_free( &ecdh_cli );
1093 
1094                 mbedtls_ecdh_free( &ecdh_srv );
1095             );
1096 
1097         }
1098     }
1099 #endif
1100 
1101     mbedtls_printf( "\n" );
1102 
1103 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
1104     mbedtls_memory_buffer_alloc_free();
1105 #endif
1106 
1107 #if defined(_WIN32)
1108     mbedtls_printf( "  Press Enter to exit this program.\n" );
1109     fflush( stdout ); getchar();
1110 #endif
1111 
1112     mbedtls_exit( 0 );
1113 }
1114 
1115 #endif /* MBEDTLS_TIMING_C */
1116