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Benchmark for GMAC (AES GCM GHASH).

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This commit is contained in:
David Garske
2021-01-19 13:42:25 -08:00
parent 209c4c08e1
commit 9ea5041d9d
2 changed files with 51 additions and 0 deletions
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50
wolfcrypt/benchmark/benchmark.c
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@@ -888,7 +888,14 @@ static THREAD_LS_T int devId = INVALID_DEVID;
#if defined(HAVE_AESGCM) || defined(HAVE_AESCCM)
#if !defined(AES_AUTH_ADD_SZ) && \
defined(STM32_CRYPTO) && !defined(STM32_AESGCM_PARTIAL)
/* For STM32 use multiple of 4 to leverage crypto hardware */
#define AES_AUTH_ADD_SZ 16
#endif
#ifndef AES_AUTH_ADD_SZ
#define AES_AUTH_ADD_SZ 13
#endif
#define AES_AUTH_TAG_SZ 16
#define BENCH_CIPHER_ADD AES_AUTH_TAG_SZ
static word32 aesAuthAddSz = AES_AUTH_ADD_SZ;
@@ -1474,6 +1481,8 @@ static void* benchmarks_do(void* args)
!defined(NO_HW_BENCH)
bench_aesgcm(1);
#endif
bench_gmac();
}
#endif
#ifdef WOLFSSL_AES_DIRECT
@@ -2384,6 +2393,47 @@ void bench_aesgcm(int doAsync)
"AES-256-GCM-enc", "AES-256-GCM-dec");
#endif
}
/* GMAC */
void bench_gmac(void)
{
int ret, count = 0;
Gmac gmac;
double start;
byte tag[AES_AUTH_TAG_SZ];
/* determine GCM GHASH method */
#ifdef GCM_SMALL
const char* gmacStr = "GMAC Small";
#elif defined(GCM_TABLE)
const char* gmacStr = "GMAC Table";
#elif defined(GCM_TABLE_4BIT)
const char* gmacStr = "GMAC Table 4-bit";
#elif defined(GCM_WORD32)
const char* gmacStr = "GMAC Word32";
#else
const char* gmacStr = "GMAC Default";
#endif
/* init keys */
XMEMSET(bench_plain, 0, bench_size);
XMEMSET(tag, 0, sizeof(tag));
XMEMSET(&gmac, 0, sizeof(Gmac)); /* clear context */
(void)wc_AesInit((Aes*)&gmac, HEAP_HINT, INVALID_DEVID);
wc_GmacSetKey(&gmac, bench_key, 16);
bench_stats_start(&count, &start);
do {
ret = wc_GmacUpdate(&gmac, bench_iv, 12, bench_plain, bench_size,
tag, sizeof(tag));
count++;
} while (bench_stats_sym_check(start));
wc_AesFree((Aes*)&gmac);
bench_stats_sym_finish(gmacStr, 0, count, bench_size, start, ret);
}
#endif /* HAVE_AESGCM */

1
wolfcrypt/benchmark/benchmark.h
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@@ -49,6 +49,7 @@ void bench_chacha(void);
void bench_chacha20_poly1305_aead(void);
void bench_aescbc(int);
void bench_aesgcm(int);
void bench_gmac(void);
void bench_aesccm(void);
void bench_aesecb(int);
void bench_aesxts(void);