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s2 crypto: update perf test to use cache comp timer

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Updated S2 hardware accelerated crypto to use the cache compensated timer.

Re-enabled RSA performance test and set lower targets now that results are more stable

Closes: IDF-1174
This commit is contained in:
Marius Vikhammer
2020-03-23 11:30:55 +08:00
parent bd827a4d2f
commit 32fd9d6c63
4 changed files with 25 additions and 28 deletions
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components/mbedtls/test/test_rsa.c
+6 -6
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@@ -18,6 +18,7 @@
#include "unity.h"
#include "sdkconfig.h"
#include "test_utils.h"
#include "ccomp_timer.h"
#define PRINT_DEBUG_INFO
@@ -306,7 +307,7 @@ static void print_rsa_details(mbedtls_rsa_context *rsa)
}
#endif
TEST_CASE("test performance RSA key operations", "[bignum][ignore]")
TEST_CASE("test performance RSA key operations", "[bignum]")
{
for (int keysize = 2048; keysize <= 4096; keysize += 2048) {
rsa_key_operations(keysize, true, false, false);
@@ -325,7 +326,6 @@ static void rsa_key_operations(int keysize, bool check_performance, bool use_bli
unsigned char orig_buf[4096 / 8];
unsigned char encrypted_buf[4096 / 8];
unsigned char decrypted_buf[4096 / 8];
int64_t start;
int public_perf, private_perf;
printf("First, orig_buf is encrypted by the public key, and then decrypted by the private key\n");
@@ -357,13 +357,13 @@ static void rsa_key_operations(int keysize, bool check_performance, bool use_bli
TEST_ASSERT_EQUAL(keysize, (int)rsa.len * 8);
TEST_ASSERT_EQUAL(keysize, (int)rsa.D.n * sizeof(mbedtls_mpi_uint) * 8); // The private exponent
start = esp_timer_get_time();
ccomp_timer_start();;
TEST_ASSERT_EQUAL(0, mbedtls_rsa_public(&rsa, orig_buf, encrypted_buf));
public_perf = esp_timer_get_time() - start;
public_perf = ccomp_timer_stop();
start = esp_timer_get_time();
ccomp_timer_start();;
TEST_ASSERT_EQUAL(0, mbedtls_rsa_private(&rsa, use_blinding?myrand:NULL, NULL, encrypted_buf, decrypted_buf));
private_perf = esp_timer_get_time() - start;
private_perf = ccomp_timer_stop();
if (check_performance && keysize == 2048) {
TEST_PERFORMANCE_LESS_THAN(RSA_2048KEY_PUBLIC_OP, "public operations %d us", public_perf);