diff options
Diffstat (limited to 'tests/test-rsa.c')
| -rw-r--r-- | tests/test-rsa.c | 66 |
1 files changed, 64 insertions, 2 deletions
diff --git a/tests/test-rsa.c b/tests/test-rsa.c index 150c6eb..51e1009 100644 --- a/tests/test-rsa.c +++ b/tests/test-rsa.c @@ -44,6 +44,8 @@ #include <string.h> #include <assert.h> +#include <sys/time.h> + #include "cryptech.h" #include "test-rsa.h" @@ -77,13 +79,73 @@ static int test_modexp(const char * const kind, } /* + * Run one RSA CRT test. + */ + +static int test_crt(const char * const kind, const rsa_tc_t * const tc) +{ + uint8_t result[tc->n.len]; + + printf("%s test for %lu-bit RSA key\n", kind, (unsigned long) tc->size); + + if (hal_rsa_crt(tc->m.val, tc->m.len, + tc->n.val, tc->n.len, + tc->e.val, tc->e.len, + tc->d.val, tc->d.len, + tc->p.val, tc->p.len, + tc->q.val, tc->q.len, + tc->u.val, tc->u.len, + result, sizeof(result)) != HAL_OK) { + printf("RSA CRT failed\n"); + return 0; + } + + if (memcmp(result, tc->s.val, tc->s.len)) { + printf("MISMATCH\n"); + return 0; + } + + printf("OK\n"); + return 1; +} + + +#define time_check(_expr_) \ + do { \ + struct timeval _t1, _t2, _td; \ + gettimeofday(&_t1, NULL); \ + int _ok = (_expr_); \ + gettimeofday(&_t2, NULL); \ + _td.tv_sec = _t2.tv_sec - _t1.tv_sec; \ + _td.tv_usec = _t2.tv_usec - _t1.tv_usec; \ + if (_td.tv_usec < 0) { \ + _td.tv_usec += 1000000; \ + _td.tv_sec -= 1; \ + } \ + printf("%lu.%06lu %s\n", \ + (unsigned long) _td.tv_sec, \ + (unsigned long) _td.tv_usec, \ + _ok ? "OK" : "FAILED"); \ + if (!_ok) \ + return 0; \ + } while (0) + +/* * Test signature and exponentiation for one RSA keypair. */ static int test_rsa(const rsa_tc_t * const tc) { - return (test_modexp("Signature", tc, &tc->m, &tc->d, &tc->s) && /* RSA decryption */ - test_modexp("Verification", tc, &tc->s, &tc->e, &tc->m)); /* RSA encryption */ + /* RSA encryption */ + time_check(test_modexp("Verification", tc, &tc->s, &tc->e, &tc->m)); + + /* Brute force RSA decryption */ + time_check(test_modexp("Signature (ModExp)", tc, &tc->m, &tc->d, &tc->s)); + + /* RSA decyrption using CRT */ + time_check(test_crt("Signature (CRT)", tc)); + + return 1; } int main(int argc, char *argv[]) |