In preparation of changing internal HMAC interface add benchmarking for HMAC functions.

Signed-off-by: Dmitry Eremin-Solenikov dbaryshkov@gmail.com --- examples/nettle-benchmark.c | 154 ++++++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+)

diff --git a/examples/nettle-benchmark.c b/examples/nettle-benchmark.c index 5a88e72dd678..101ba7d4abcc 100644 --- a/examples/nettle-benchmark.c +++ b/examples/nettle-benchmark.c @@ -67,6 +67,7 @@ #include "umac.h" #include "cmac.h" #include "poly1305.h" +#include "hmac.h"

#include "nettle-meta.h" #include "nettle-internal.h" @@ -476,6 +477,147 @@ time_poly1305_aes(void) time_function(bench_hash, &info)); }

+struct bench_hmac_info +{ + void *ctx; + nettle_hash_update_func *update; + nettle_hash_digest_func *digest; + size_t length; + size_t digest_length; + const uint8_t *data; +}; + +static void +bench_hmac(void *arg) +{ + struct bench_hmac_info *info = arg; + uint8_t digest[NETTLE_MAX_HASH_DIGEST_SIZE]; + size_t pos, length; + + length = info->length; + for (pos = 0; pos < BENCH_BLOCK; pos += length) + { + size_t single = pos + length < BENCH_BLOCK ? + length : + BENCH_BLOCK - pos; + info->update(info->ctx, single, info->data + pos); + info->digest(info->ctx, info->digest_length, digest); + } +} + +static const struct +{ + size_t length; + const char *msg; +} hmac_tests[] = { + { 64, "64 bytes" }, + { 256, "256 bytes" }, + { 1024, "1024 bytes" }, + { 4096, "4096 bytes" }, + { BENCH_BLOCK, "single msg" }, + { 0, NULL }, +}; + +static void +time_hmac_md5(void) +{ + static uint8_t data[BENCH_BLOCK]; + struct bench_hmac_info info; + struct hmac_md5_ctx md5_ctx; + unsigned int pos; + + init_data(data); + info.data = data; + + hmac_md5_set_key(&md5_ctx, MD5_BLOCK_SIZE, data); + info.ctx = &md5_ctx; + info.update = (nettle_hash_update_func *) hmac_md5_update; + info.digest = (nettle_hash_digest_func *) hmac_md5_digest; + info.digest_length = MD5_DIGEST_SIZE; + + for (pos = 0; hmac_tests[pos].length != 0; pos++) + { + info.length = hmac_tests[pos].length; + display("hmac-md5", hmac_tests[pos].msg, MD5_BLOCK_SIZE, + time_function(bench_hmac, &info)); + } +} + +static void +time_hmac_sha1(void) +{ + static uint8_t data[BENCH_BLOCK]; + struct bench_hmac_info info; + struct hmac_sha1_ctx sha1_ctx; + unsigned int pos; + + init_data(data); + info.data = data; + + hmac_sha1_set_key(&sha1_ctx, SHA1_BLOCK_SIZE, data); + info.ctx = &sha1_ctx; + info.update = (nettle_hash_update_func *) hmac_sha1_update; + info.digest = (nettle_hash_digest_func *) hmac_sha1_digest; + info.digest_length = SHA1_DIGEST_SIZE; + + for (pos = 0; hmac_tests[pos].length != 0; pos++) + { + info.length = hmac_tests[pos].length; + display("hmac-sha1", hmac_tests[pos].msg, SHA1_BLOCK_SIZE, + time_function(bench_hmac, &info)); + } +} + +static void +time_hmac_sha256(void) +{ + static uint8_t data[BENCH_BLOCK]; + struct bench_hmac_info info; + struct hmac_sha256_ctx sha256_ctx; + unsigned int pos; + + init_data(data); + info.data = data; + + hmac_sha256_set_key(&sha256_ctx, SHA256_BLOCK_SIZE, data); + info.ctx = &sha256_ctx; + info.update = (nettle_hash_update_func *) hmac_sha256_update; + info.digest = (nettle_hash_digest_func *) hmac_sha256_digest; + info.digest_length = SHA256_DIGEST_SIZE; + + for (pos = 0; hmac_tests[pos].length != 0; pos++) + { + info.length = hmac_tests[pos].length; + display("hmac-sha256", hmac_tests[pos].msg, SHA256_BLOCK_SIZE, + time_function(bench_hmac, &info)); + } +} + +static void +time_hmac_sha512(void) +{ + static uint8_t data[BENCH_BLOCK]; + struct bench_hmac_info info; + struct hmac_sha512_ctx sha512_ctx; + unsigned int pos; + + init_data(data); + info.data = data; + + hmac_sha512_set_key(&sha512_ctx, SHA512_BLOCK_SIZE, data); + info.ctx = &sha512_ctx; + info.update = (nettle_hash_update_func *) hmac_sha512_update; + info.digest = (nettle_hash_digest_func *) hmac_sha512_digest; + info.digest_length = SHA512_DIGEST_SIZE; + + for (pos = 0; hmac_tests[pos].length != 0; pos++) + { + info.length = hmac_tests[pos].length; + display("hmac-sha512", hmac_tests[pos].msg, SHA512_BLOCK_SIZE, + time_function(bench_hmac, &info)); + } +} + static int prefix_p(const char *prefix, const char *s) { @@ -883,6 +1025,18 @@ main(int argc, char **argv) if (!alg || strstr(aeads[i]->name, alg)) time_aead(aeads[i]);

+ if (!alg || strstr ("hmac-md5", alg)) + time_hmac_md5(); + + if (!alg || strstr ("hmac-sha1", alg)) + time_hmac_sha1(); + + if (!alg || strstr ("hmac-sha256", alg)) + time_hmac_sha256(); + + if (!alg || strstr ("hmac-sha512", alg)) + time_hmac_sha512(); + optind++; } while (alg && argv[optind]);