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-rw-r--r--tests/test-rsa.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/tests/test-rsa.c b/tests/test-rsa.c
index 799f1fa..ef60eb9 100644
--- a/tests/test-rsa.c
+++ b/tests/test-rsa.c
@@ -128,30 +128,40 @@ static int test_gen(const char * const kind, const rsa_tc_t * const tc)
printf("%s test for %lu-bit RSA key\n", kind, (unsigned long) tc->size);
char fn[sizeof("test-rsa-key-xxxxxx.der")];
- uint8_t keybuf[hal_rsa_key_t_size];
+ uint8_t keybuf1[hal_rsa_key_t_size], keybuf2[hal_rsa_key_t_size];
hal_error_t err = HAL_OK;
- hal_rsa_key_t key;
+ hal_rsa_key_t key1, key2;
FILE *f;
- if ((err = hal_rsa_key_gen(&key, keybuf, sizeof(keybuf), bitsToBytes(tc->size), 0x010001)) != HAL_OK) {
+ if ((err = hal_rsa_key_gen(&key1, keybuf1, sizeof(keybuf1), bitsToBytes(tc->size), 0x010001)) != HAL_OK) {
printf("RSA key generation failed: %s\n", hal_error_string(err));
return 0;
}
size_t der_len = 0;
- if ((err = hal_rsa_key_to_der(key, NULL, &der_len, 0)) != HAL_OK) {
+ if ((err = hal_rsa_key_to_der(key1, NULL, &der_len, 0)) != HAL_OK) {
printf("Getting DER length of RSA key failed: %s\n", hal_error_string(err));
return 0;
}
uint8_t der[der_len];
- if ((err = hal_rsa_key_to_der(key, der, &der_len, sizeof(der))) != HAL_OK) {
+ if ((err = hal_rsa_key_to_der(key1, der, &der_len, sizeof(der))) != HAL_OK) {
printf("Converting RSA key to DER failed: %s\n", hal_error_string(err));
return 0;
}
+ if ((err = hal_rsa_key_from_der(&key2, keybuf2, sizeof(keybuf2), der, sizeof(der))) != HAL_OK) {
+ printf("Converting RSA key back from DER failed: %s\n", hal_error_string(err));
+ return 0;
+ }
+
+ if (memcmp(keybuf1, keybuf2, hal_rsa_key_t_size) != 0) {
+ printf("RSA key mismatch after conversion to and back from DER\n");
+ return 0;
+ }
+
snprintf(fn, sizeof(fn), "test-rsa-key-%04lu.der", (unsigned long) tc->size);
printf("Writing %s\n", fn);
@@ -172,7 +182,7 @@ static int test_gen(const char * const kind, const rsa_tc_t * const tc)
uint8_t result[tc->n.len];
- if ((err = hal_rsa_decrypt(key, tc->m.val, tc->m.len, result, sizeof(result))) != HAL_OK)
+ if ((err = hal_rsa_decrypt(key1, tc->m.val, tc->m.len, result, sizeof(result))) != HAL_OK)
printf("RSA CRT failed: %s\n", hal_error_string(err));
snprintf(fn, sizeof(fn), "test-rsa-sig-%04lu.der", (unsigned long) tc->size);
@@ -193,7 +203,8 @@ static int test_gen(const char * const kind, const rsa_tc_t * const tc)
return 0;
}
- hal_rsa_key_clear(key);
+ hal_rsa_key_clear(key1);
+ hal_rsa_key_clear(key2);
return err == HAL_OK;
}