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mbedtls/tests/suites/test_suite_rsa.function
Valerio Setti c701cb2835 test_suite_rsa: improve rsa_key_write_incremental() 
Output buffer is tested from being 1 single byte up to twice
what it is strictly required to contain the output data.

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
2024-02-02 11:10:04 +01:00

1490 lines
50 KiB
C
Raw Blame History

/* BEGIN_HEADER */
#include "mbedtls/rsa.h"
#include "rsa_alt_helpers.h"
#include "rsa_internal.h"
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_RSA_C:MBEDTLS_BIGNUM_C:MBEDTLS_GENPRIME
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void rsa_invalid_param()
{
mbedtls_rsa_context ctx;
const int invalid_padding = 42;
const int invalid_hash_id = 0xff;
unsigned char buf[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
size_t buf_len = sizeof(buf);
mbedtls_rsa_init(&ctx);
TEST_EQUAL(mbedtls_rsa_set_padding(&ctx,
invalid_padding,
MBEDTLS_MD_NONE),
MBEDTLS_ERR_RSA_INVALID_PADDING);
TEST_EQUAL(mbedtls_rsa_set_padding(&ctx,
MBEDTLS_RSA_PKCS_V21,
invalid_hash_id),
MBEDTLS_ERR_RSA_INVALID_PADDING);
TEST_EQUAL(mbedtls_rsa_pkcs1_sign(&ctx, NULL,
NULL, MBEDTLS_MD_NONE,
buf_len,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_pkcs1_sign(&ctx, NULL,
NULL, MBEDTLS_MD_SHA256,
0,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_pkcs1_verify(&ctx, MBEDTLS_MD_NONE,
buf_len,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_pkcs1_verify(&ctx, MBEDTLS_MD_SHA256,
0,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
#if !defined(MBEDTLS_PKCS1_V15)
TEST_EQUAL(mbedtls_rsa_set_padding(&ctx,
MBEDTLS_RSA_PKCS_V15,
MBEDTLS_MD_NONE),
MBEDTLS_ERR_RSA_INVALID_PADDING);
#endif
#if defined(MBEDTLS_PKCS1_V15)
TEST_EQUAL(mbedtls_rsa_rsassa_pkcs1_v15_sign(&ctx, NULL,
NULL, MBEDTLS_MD_NONE,
buf_len,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_rsassa_pkcs1_v15_sign(&ctx, NULL,
NULL, MBEDTLS_MD_SHA256,
0,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_rsassa_pkcs1_v15_verify(&ctx, MBEDTLS_MD_NONE,
buf_len,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_rsassa_pkcs1_v15_verify(&ctx, MBEDTLS_MD_SHA256,
0,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
#endif
#if !defined(MBEDTLS_PKCS1_V21)
TEST_EQUAL(mbedtls_rsa_set_padding(&ctx,
MBEDTLS_RSA_PKCS_V21,
MBEDTLS_MD_NONE),
MBEDTLS_ERR_RSA_INVALID_PADDING);
#endif
#if defined(MBEDTLS_PKCS1_V21)
TEST_EQUAL(mbedtls_rsa_rsassa_pss_sign_ext(&ctx, NULL, NULL,
MBEDTLS_MD_NONE, buf_len,
NULL, buf_len,
buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_rsassa_pss_sign_ext(&ctx, NULL, NULL,
MBEDTLS_MD_SHA256, 0,
NULL, buf_len,
buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_rsassa_pss_verify_ext(&ctx, MBEDTLS_MD_NONE,
buf_len, NULL,
MBEDTLS_MD_NONE,
buf_len, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_rsassa_pss_verify_ext(&ctx, MBEDTLS_MD_SHA256,
0, NULL,
MBEDTLS_MD_NONE,
buf_len, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_rsassa_pss_verify(&ctx, MBEDTLS_MD_NONE,
buf_len,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
TEST_EQUAL(mbedtls_rsa_rsassa_pss_verify(&ctx, MBEDTLS_MD_SHA256,
0,
NULL, buf),
MBEDTLS_ERR_RSA_BAD_INPUT_DATA);
#endif
exit:
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_init_free(int reinit)
{
mbedtls_rsa_context ctx;
/* Double free is not explicitly documented to work, but we rely on it
* even inside the library so that you can call mbedtls_rsa_free()
* unconditionally on an error path without checking whether it has
* already been called in the success path. */
mbedtls_rsa_init(&ctx);
mbedtls_rsa_free(&ctx);
if (reinit) {
mbedtls_rsa_init(&ctx);
}
mbedtls_rsa_free(&ctx);
/* This test case always succeeds, functionally speaking. A plausible
* bug might trigger an invalid pointer dereference or a memory leak. */
goto exit;
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_pkcs1_sign(data_t *message_str, int padding_mode,
int digest, int mod, char *input_P,
char *input_Q, char *input_N, char *input_E,
data_t *result_str, int result)
{
unsigned char output[256];
mbedtls_rsa_context ctx;
mbedtls_mpi N, P, Q, E;
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&P);
mbedtls_mpi_init(&Q); mbedtls_mpi_init(&E);
mbedtls_rsa_init(&ctx);
TEST_ASSERT(mbedtls_rsa_set_padding(&ctx, padding_mode,
MBEDTLS_MD_NONE) == 0);
memset(output, 0x00, sizeof(output));
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, &P, &Q, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_complete(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_pkcs1_sign(
&ctx, &mbedtls_test_rnd_pseudo_rand, &rnd_info,
digest, message_str->len, message_str->x,
output) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
ctx.len, result_str->len) == 0);
}
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&P);
mbedtls_mpi_free(&Q); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_pkcs1_verify(data_t *message_str, int padding_mode,
int digest, int mod,
char *input_N, char *input_E,
data_t *result_str, int result)
{
mbedtls_rsa_context ctx;
mbedtls_mpi N, E;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&E);
mbedtls_rsa_init(&ctx);
TEST_ASSERT(mbedtls_rsa_set_padding(&ctx, padding_mode,
MBEDTLS_MD_NONE) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, NULL, NULL, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_pkcs1_verify(&ctx, digest, message_str->len, message_str->x,
result_str->x) == result);
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_pkcs1_sign_raw(data_t *hash_result,
int padding_mode, int mod,
char *input_P, char *input_Q,
char *input_N, char *input_E,
data_t *result_str)
{
unsigned char output[256];
mbedtls_rsa_context ctx;
mbedtls_mpi N, P, Q, E;
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_rsa_init(&ctx);
mbedtls_mpi_init(&N); mbedtls_mpi_init(&P);
mbedtls_mpi_init(&Q); mbedtls_mpi_init(&E);
TEST_ASSERT(mbedtls_rsa_set_padding(&ctx, padding_mode,
MBEDTLS_MD_NONE) == 0);
memset(output, 0x00, sizeof(output));
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, &P, &Q, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_complete(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_pkcs1_sign(&ctx, &mbedtls_test_rnd_pseudo_rand,
&rnd_info, MBEDTLS_MD_NONE,
hash_result->len,
hash_result->x, output) == 0);
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
ctx.len, result_str->len) == 0);
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&P);
mbedtls_mpi_free(&Q); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_pkcs1_verify_raw(data_t *hash_result,
int padding_mode, int mod,
char *input_N, char *input_E,
data_t *result_str, int correct)
{
unsigned char output[256];
mbedtls_rsa_context ctx;
mbedtls_mpi N, E;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&E);
mbedtls_rsa_init(&ctx);
TEST_ASSERT(mbedtls_rsa_set_padding(&ctx, padding_mode,
MBEDTLS_MD_NONE) == 0);
memset(output, 0x00, sizeof(output));
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, NULL, NULL, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_pkcs1_verify(&ctx, MBEDTLS_MD_NONE, hash_result->len, hash_result->x,
result_str->x) == correct);
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_pkcs1_encrypt(data_t *message_str, int padding_mode,
int mod, char *input_N, char *input_E,
data_t *result_str, int result)
{
unsigned char output[256];
mbedtls_rsa_context ctx;
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_mpi N, E;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&E);
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
mbedtls_rsa_init(&ctx);
TEST_ASSERT(mbedtls_rsa_set_padding(&ctx, padding_mode,
MBEDTLS_MD_NONE) == 0);
memset(output, 0x00, sizeof(output));
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, NULL, NULL, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_pkcs1_encrypt(&ctx,
&mbedtls_test_rnd_pseudo_rand,
&rnd_info, message_str->len,
message_str->x,
output) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
ctx.len, result_str->len) == 0);
}
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_pkcs1_encrypt_bad_rng(data_t *message_str, int padding_mode,
int mod, char *input_N, char *input_E,
data_t *result_str, int result)
{
unsigned char output[256];
mbedtls_rsa_context ctx;
mbedtls_mpi N, E;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&E);
mbedtls_rsa_init(&ctx);
TEST_ASSERT(mbedtls_rsa_set_padding(&ctx, padding_mode,
MBEDTLS_MD_NONE) == 0);
memset(output, 0x00, sizeof(output));
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, NULL, NULL, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_pkcs1_encrypt(&ctx, &mbedtls_test_rnd_zero_rand,
NULL, message_str->len,
message_str->x,
output) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
ctx.len, result_str->len) == 0);
}
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_pkcs1_decrypt(data_t *message_str, int padding_mode,
int mod, char *input_P,
char *input_Q, char *input_N,
char *input_E, int max_output,
data_t *result_str, int result)
{
unsigned char output[32];
mbedtls_rsa_context ctx;
size_t output_len;
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_mpi N, P, Q, E;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&P);
mbedtls_mpi_init(&Q); mbedtls_mpi_init(&E);
mbedtls_rsa_init(&ctx);
TEST_ASSERT(mbedtls_rsa_set_padding(&ctx, padding_mode,
MBEDTLS_MD_NONE) == 0);
memset(output, 0x00, sizeof(output));
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, &P, &Q, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_complete(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == 0);
output_len = 0;
TEST_ASSERT(mbedtls_rsa_pkcs1_decrypt(&ctx, mbedtls_test_rnd_pseudo_rand,
&rnd_info,
&output_len, message_str->x, output,
max_output) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
output_len,
result_str->len) == 0);
}
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&P);
mbedtls_mpi_free(&Q); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_public(data_t *message_str, int mod,
char *input_N, char *input_E,
data_t *result_str, int result)
{
unsigned char output[256];
mbedtls_rsa_context ctx, ctx2; /* Also test mbedtls_rsa_copy() while at it */
mbedtls_mpi N, E;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&E);
mbedtls_rsa_init(&ctx);
mbedtls_rsa_init(&ctx2);
memset(output, 0x00, sizeof(output));
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, NULL, NULL, NULL, &E) == 0);
/* Check test data consistency */
TEST_ASSERT(message_str->len == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_public(&ctx, message_str->x, output) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
ctx.len, result_str->len) == 0);
}
/* And now with the copy */
TEST_ASSERT(mbedtls_rsa_copy(&ctx2, &ctx) == 0);
/* clear the original to be sure */
mbedtls_rsa_free(&ctx);
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx2) == 0);
memset(output, 0x00, sizeof(output));
TEST_ASSERT(mbedtls_rsa_public(&ctx2, message_str->x, output) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
ctx.len, result_str->len) == 0);
}
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
mbedtls_rsa_free(&ctx2);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_private(data_t *message_str, int mod,
char *input_P, char *input_Q,
char *input_N, char *input_E,
data_t *result_str, int result)
{
unsigned char output[256];
mbedtls_rsa_context ctx, ctx2; /* Also test mbedtls_rsa_copy() while at it */
mbedtls_mpi N, P, Q, E;
mbedtls_test_rnd_pseudo_info rnd_info;
int i;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&P);
mbedtls_mpi_init(&Q); mbedtls_mpi_init(&E);
mbedtls_rsa_init(&ctx);
mbedtls_rsa_init(&ctx2);
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, &P, &Q, NULL, &E) == 0);
/* Check test data consistency */
TEST_ASSERT(message_str->len == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_get_len(&ctx) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_complete(&ctx) == 0);
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == 0);
/* repeat three times to test updating of blinding values */
for (i = 0; i < 3; i++) {
memset(output, 0x00, sizeof(output));
TEST_ASSERT(mbedtls_rsa_private(&ctx, mbedtls_test_rnd_pseudo_rand,
&rnd_info, message_str->x,
output) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
ctx.len,
result_str->len) == 0);
}
}
/* And now one more time with the copy */
TEST_ASSERT(mbedtls_rsa_copy(&ctx2, &ctx) == 0);
/* clear the original to be sure */
mbedtls_rsa_free(&ctx);
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx2) == 0);
memset(output, 0x00, sizeof(output));
TEST_ASSERT(mbedtls_rsa_private(&ctx2, mbedtls_test_rnd_pseudo_rand,
&rnd_info, message_str->x,
output) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_test_hexcmp(output, result_str->x,
ctx2.len,
result_str->len) == 0);
}
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&P);
mbedtls_mpi_free(&Q); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx); mbedtls_rsa_free(&ctx2);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_check_privkey_null()
{
mbedtls_rsa_context ctx;
memset(&ctx, 0x00, sizeof(mbedtls_rsa_context));
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == MBEDTLS_ERR_RSA_KEY_CHECK_FAILED);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_check_pubkey(char *input_N, char *input_E, int result)
{
mbedtls_rsa_context ctx;
mbedtls_mpi N, E;
mbedtls_mpi_init(&N); mbedtls_mpi_init(&E);
mbedtls_rsa_init(&ctx);
if (strlen(input_N)) {
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
}
if (strlen(input_E)) {
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
}
TEST_ASSERT(mbedtls_rsa_import(&ctx, &N, NULL, NULL, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx) == result);
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&E);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_check_privkey(int mod, char *input_P, char *input_Q,
char *input_N, char *input_E, char *input_D,
char *input_DP, char *input_DQ, char *input_QP,
int result)
{
mbedtls_rsa_context ctx;
mbedtls_rsa_init(&ctx);
ctx.len = mod / 8;
if (strlen(input_P)) {
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.P, input_P) == 0);
}
if (strlen(input_Q)) {
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.Q, input_Q) == 0);
}
if (strlen(input_N)) {
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.N, input_N) == 0);
}
if (strlen(input_E)) {
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.E, input_E) == 0);
}
if (strlen(input_D)) {
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.D, input_D) == 0);
}
#if !defined(MBEDTLS_RSA_NO_CRT)
if (strlen(input_DP)) {
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.DP, input_DP) == 0);
}
if (strlen(input_DQ)) {
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.DQ, input_DQ) == 0);
}
if (strlen(input_QP)) {
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.QP, input_QP) == 0);
}
#else
((void) input_DP);
((void) input_DQ);
((void) input_QP);
#endif
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == result);
exit:
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_check_pubpriv(int mod, char *input_Npub, char *input_Epub,
char *input_P, char *input_Q, char *input_N,
char *input_E, char *input_D, char *input_DP,
char *input_DQ, char *input_QP, int result)
{
mbedtls_rsa_context pub, prv;
mbedtls_rsa_init(&pub);
mbedtls_rsa_init(&prv);
pub.len = mod / 8;
prv.len = mod / 8;
if (strlen(input_Npub)) {
TEST_ASSERT(mbedtls_test_read_mpi(&pub.N, input_Npub) == 0);
}
if (strlen(input_Epub)) {
TEST_ASSERT(mbedtls_test_read_mpi(&pub.E, input_Epub) == 0);
}
if (strlen(input_P)) {
TEST_ASSERT(mbedtls_test_read_mpi(&prv.P, input_P) == 0);
}
if (strlen(input_Q)) {
TEST_ASSERT(mbedtls_test_read_mpi(&prv.Q, input_Q) == 0);
}
if (strlen(input_N)) {
TEST_ASSERT(mbedtls_test_read_mpi(&prv.N, input_N) == 0);
}
if (strlen(input_E)) {
TEST_ASSERT(mbedtls_test_read_mpi(&prv.E, input_E) == 0);
}
if (strlen(input_D)) {
TEST_ASSERT(mbedtls_test_read_mpi(&prv.D, input_D) == 0);
}
#if !defined(MBEDTLS_RSA_NO_CRT)
if (strlen(input_DP)) {
TEST_ASSERT(mbedtls_test_read_mpi(&prv.DP, input_DP) == 0);
}
if (strlen(input_DQ)) {
TEST_ASSERT(mbedtls_test_read_mpi(&prv.DQ, input_DQ) == 0);
}
if (strlen(input_QP)) {
TEST_ASSERT(mbedtls_test_read_mpi(&prv.QP, input_QP) == 0);
}
#else
((void) input_DP);
((void) input_DQ);
((void) input_QP);
#endif
TEST_ASSERT(mbedtls_rsa_check_pub_priv(&pub, &prv) == result);
exit:
mbedtls_rsa_free(&pub);
mbedtls_rsa_free(&prv);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_gen_key(int nrbits, int exponent, int result)
{
mbedtls_rsa_context ctx;
mbedtls_rsa_init(&ctx);
/* This test uses an insecure RNG, suitable only for testing.
* In production, always use a cryptographically strong RNG! */
TEST_ASSERT(mbedtls_rsa_gen_key(&ctx, mbedtls_test_rnd_std_rand, NULL, nrbits,
exponent) == result);
if (result == 0) {
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == 0);
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&ctx.P, &ctx.Q) > 0);
}
exit:
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_deduce_primes(char *input_N,
char *input_D,
char *input_E,
char *output_P,
char *output_Q,
int corrupt, int result)
{
mbedtls_mpi N, P, Pp, Q, Qp, D, E;
mbedtls_mpi_init(&N);
mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
mbedtls_mpi_init(&Pp); mbedtls_mpi_init(&Qp);
mbedtls_mpi_init(&D); mbedtls_mpi_init(&E);
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&D, input_D) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Qp, output_P) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Pp, output_Q) == 0);
if (corrupt) {
TEST_ASSERT(mbedtls_mpi_add_int(&D, &D, 2) == 0);
}
/* Try to deduce P, Q from N, D, E only. */
TEST_ASSERT(mbedtls_rsa_deduce_primes(&N, &D, &E, &P, &Q) == result);
if (!corrupt) {
/* Check if (P,Q) = (Pp, Qp) or (P,Q) = (Qp, Pp) */
TEST_ASSERT((mbedtls_mpi_cmp_mpi(&P, &Pp) == 0 && mbedtls_mpi_cmp_mpi(&Q, &Qp) == 0) ||
(mbedtls_mpi_cmp_mpi(&P, &Qp) == 0 && mbedtls_mpi_cmp_mpi(&Q, &Pp) == 0));
}
exit:
mbedtls_mpi_free(&N);
mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
mbedtls_mpi_free(&Pp); mbedtls_mpi_free(&Qp);
mbedtls_mpi_free(&D); mbedtls_mpi_free(&E);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_deduce_private_exponent(char *input_P,
char *input_Q,
char *input_E,
char *output_D,
int corrupt, int result)
{
mbedtls_mpi P, Q, D, Dp, E, R, Rp;
mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
mbedtls_mpi_init(&D); mbedtls_mpi_init(&Dp);
mbedtls_mpi_init(&E);
mbedtls_mpi_init(&R); mbedtls_mpi_init(&Rp);
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Dp, output_D) == 0);
if (corrupt) {
/* Make E even */
TEST_ASSERT(mbedtls_mpi_set_bit(&E, 0, 0) == 0);
}
/* Try to deduce D from N, P, Q, E. */
TEST_ASSERT(mbedtls_rsa_deduce_private_exponent(&P, &Q,
&E, &D) == result);
if (!corrupt) {
/*
* Check that D and Dp agree modulo LCM(P-1, Q-1).
*/
/* Replace P,Q by P-1, Q-1 */
TEST_ASSERT(mbedtls_mpi_sub_int(&P, &P, 1) == 0);
TEST_ASSERT(mbedtls_mpi_sub_int(&Q, &Q, 1) == 0);
/* Check D == Dp modulo P-1 */
TEST_ASSERT(mbedtls_mpi_mod_mpi(&R, &D, &P) == 0);
TEST_ASSERT(mbedtls_mpi_mod_mpi(&Rp, &Dp, &P) == 0);
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R, &Rp) == 0);
/* Check D == Dp modulo Q-1 */
TEST_ASSERT(mbedtls_mpi_mod_mpi(&R, &D, &Q) == 0);
TEST_ASSERT(mbedtls_mpi_mod_mpi(&Rp, &Dp, &Q) == 0);
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R, &Rp) == 0);
}
exit:
mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
mbedtls_mpi_free(&D); mbedtls_mpi_free(&Dp);
mbedtls_mpi_free(&E);
mbedtls_mpi_free(&R); mbedtls_mpi_free(&Rp);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_import(char *input_N,
char *input_P,
char *input_Q,
char *input_D,
char *input_E,
int successive,
int is_priv,
int res_check,
int res_complete)
{
mbedtls_mpi N, P, Q, D, E;
mbedtls_rsa_context ctx;
/* Buffers used for encryption-decryption test */
unsigned char *buf_orig = NULL;
unsigned char *buf_enc = NULL;
unsigned char *buf_dec = NULL;
const int have_N = (strlen(input_N) > 0);
const int have_P = (strlen(input_P) > 0);
const int have_Q = (strlen(input_Q) > 0);
const int have_D = (strlen(input_D) > 0);
const int have_E = (strlen(input_E) > 0);
mbedtls_rsa_init(&ctx);
mbedtls_mpi_init(&N);
mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
mbedtls_mpi_init(&D); mbedtls_mpi_init(&E);
if (have_N) {
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
}
if (have_P) {
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
}
if (have_Q) {
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
}
if (have_D) {
TEST_ASSERT(mbedtls_test_read_mpi(&D, input_D) == 0);
}
if (have_E) {
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
}
if (!successive) {
TEST_ASSERT(mbedtls_rsa_import(&ctx,
have_N ? &N : NULL,
have_P ? &P : NULL,
have_Q ? &Q : NULL,
have_D ? &D : NULL,
have_E ? &E : NULL) == 0);
} else {
/* Import N, P, Q, D, E separately.
* This should make no functional difference. */
TEST_ASSERT(mbedtls_rsa_import(&ctx,
have_N ? &N : NULL,
NULL, NULL, NULL, NULL) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx,
NULL,
have_P ? &P : NULL,
NULL, NULL, NULL) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx,
NULL, NULL,
have_Q ? &Q : NULL,
NULL, NULL) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx,
NULL, NULL, NULL,
have_D ? &D : NULL,
NULL) == 0);
TEST_ASSERT(mbedtls_rsa_import(&ctx,
NULL, NULL, NULL, NULL,
have_E ? &E : NULL) == 0);
}
TEST_ASSERT(mbedtls_rsa_complete(&ctx) == res_complete);
/* On expected success, perform some public and private
* key operations to check if the key is working properly. */
if (res_complete == 0) {
if (is_priv) {
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == res_check);
} else {
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx) == res_check);
}
if (res_check != 0) {
goto exit;
}
buf_orig = mbedtls_calloc(1, mbedtls_rsa_get_len(&ctx));
buf_enc = mbedtls_calloc(1, mbedtls_rsa_get_len(&ctx));
buf_dec = mbedtls_calloc(1, mbedtls_rsa_get_len(&ctx));
if (buf_orig == NULL || buf_enc == NULL || buf_dec == NULL) {
goto exit;
}
/* This test uses an insecure RNG, suitable only for testing.
* In production, always use a cryptographically strong RNG! */
TEST_ASSERT(mbedtls_test_rnd_std_rand(NULL,
buf_orig, mbedtls_rsa_get_len(&ctx)) == 0);
/* Make sure the number we're generating is smaller than the modulus */
buf_orig[0] = 0x00;
TEST_ASSERT(mbedtls_rsa_public(&ctx, buf_orig, buf_enc) == 0);
if (is_priv) {
/* This test uses an insecure RNG, suitable only for testing.
* In production, always use a cryptographically strong RNG! */
TEST_ASSERT(mbedtls_rsa_private(&ctx, mbedtls_test_rnd_std_rand,
NULL, buf_enc,
buf_dec) == 0);
TEST_ASSERT(memcmp(buf_orig, buf_dec,
mbedtls_rsa_get_len(&ctx)) == 0);
}
}
exit:
mbedtls_free(buf_orig);
mbedtls_free(buf_enc);
mbedtls_free(buf_dec);
mbedtls_rsa_free(&ctx);
mbedtls_mpi_free(&N);
mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
mbedtls_mpi_free(&D); mbedtls_mpi_free(&E);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_export(char *input_N,
char *input_P,
char *input_Q,
char *input_D,
char *input_E,
int is_priv,
int successive)
{
/* Original MPI's with which we set up the RSA context */
mbedtls_mpi N, P, Q, D, E;
/* Exported MPI's */
mbedtls_mpi Ne, Pe, Qe, De, Ee;
const int have_N = (strlen(input_N) > 0);
const int have_P = (strlen(input_P) > 0);
const int have_Q = (strlen(input_Q) > 0);
const int have_D = (strlen(input_D) > 0);
const int have_E = (strlen(input_E) > 0);
mbedtls_rsa_context ctx;
mbedtls_rsa_init(&ctx);
mbedtls_mpi_init(&N);
mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
mbedtls_mpi_init(&D); mbedtls_mpi_init(&E);
mbedtls_mpi_init(&Ne);
mbedtls_mpi_init(&Pe); mbedtls_mpi_init(&Qe);
mbedtls_mpi_init(&De); mbedtls_mpi_init(&Ee);
/* Setup RSA context */
if (have_N) {
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
}
if (have_P) {
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
}
if (have_Q) {
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
}
if (have_D) {
TEST_ASSERT(mbedtls_test_read_mpi(&D, input_D) == 0);
}
if (have_E) {
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
}
TEST_ASSERT(mbedtls_rsa_import(&ctx,
strlen(input_N) ? &N : NULL,
strlen(input_P) ? &P : NULL,
strlen(input_Q) ? &Q : NULL,
strlen(input_D) ? &D : NULL,
strlen(input_E) ? &E : NULL) == 0);
TEST_ASSERT(mbedtls_rsa_complete(&ctx) == 0);
/*
* Export parameters and compare to original ones.
*/
/* N and E must always be present. */
if (!successive) {
TEST_ASSERT(mbedtls_rsa_export(&ctx, &Ne, NULL, NULL, NULL, &Ee) == 0);
} else {
TEST_ASSERT(mbedtls_rsa_export(&ctx, &Ne, NULL, NULL, NULL, NULL) == 0);
TEST_ASSERT(mbedtls_rsa_export(&ctx, NULL, NULL, NULL, NULL, &Ee) == 0);
}
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&N, &Ne) == 0);
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&E, &Ee) == 0);
/* If we were providing enough information to setup a complete private context,
* we expect to be able to export all core parameters. */
if (is_priv) {
if (!successive) {
TEST_ASSERT(mbedtls_rsa_export(&ctx, NULL, &Pe, &Qe,
&De, NULL) == 0);
} else {
TEST_ASSERT(mbedtls_rsa_export(&ctx, NULL, &Pe, NULL,
NULL, NULL) == 0);
TEST_ASSERT(mbedtls_rsa_export(&ctx, NULL, NULL, &Qe,
NULL, NULL) == 0);
TEST_ASSERT(mbedtls_rsa_export(&ctx, NULL, NULL, NULL,
&De, NULL) == 0);
}
if (have_P) {
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&P, &Pe) == 0);
}
if (have_Q) {
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&Q, &Qe) == 0);
}
if (have_D) {
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&D, &De) == 0);
}
/* While at it, perform a sanity check */
TEST_ASSERT(mbedtls_rsa_validate_params(&Ne, &Pe, &Qe, &De, &Ee,
NULL, NULL) == 0);
}
exit:
mbedtls_rsa_free(&ctx);
mbedtls_mpi_free(&N);
mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
mbedtls_mpi_free(&D); mbedtls_mpi_free(&E);
mbedtls_mpi_free(&Ne);
mbedtls_mpi_free(&Pe); mbedtls_mpi_free(&Qe);
mbedtls_mpi_free(&De); mbedtls_mpi_free(&Ee);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_validate_params(char *input_N,
char *input_P,
char *input_Q,
char *input_D,
char *input_E,
int prng, int result)
{
/* Original MPI's with which we set up the RSA context */
mbedtls_mpi N, P, Q, D, E;
const int have_N = (strlen(input_N) > 0);
const int have_P = (strlen(input_P) > 0);
const int have_Q = (strlen(input_Q) > 0);
const int have_D = (strlen(input_D) > 0);
const int have_E = (strlen(input_E) > 0);
mbedtls_mpi_init(&N);
mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
mbedtls_mpi_init(&D); mbedtls_mpi_init(&E);
if (have_N) {
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
}
if (have_P) {
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
}
if (have_Q) {
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
}
if (have_D) {
TEST_ASSERT(mbedtls_test_read_mpi(&D, input_D) == 0);
}
if (have_E) {
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
}
/* This test uses an insecure RNG, suitable only for testing.
* In production, always use a cryptographically strong RNG! */
TEST_ASSERT(mbedtls_rsa_validate_params(have_N ? &N : NULL,
have_P ? &P : NULL,
have_Q ? &Q : NULL,
have_D ? &D : NULL,
have_E ? &E : NULL,
prng ? mbedtls_test_rnd_std_rand : NULL,
prng ? NULL : NULL) == result);
exit:
mbedtls_mpi_free(&N);
mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
mbedtls_mpi_free(&D); mbedtls_mpi_free(&E);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_export_raw(data_t *input_N, data_t *input_P,
data_t *input_Q, data_t *input_D,
data_t *input_E, int is_priv,
int successive)
{
/* Exported buffers */
unsigned char bufNe[256];
unsigned char bufPe[128];
unsigned char bufQe[128];
unsigned char bufDe[256];
unsigned char bufEe[1];
mbedtls_rsa_context ctx;
mbedtls_rsa_init(&ctx);
/* Setup RSA context */
TEST_ASSERT(mbedtls_rsa_import_raw(&ctx,
input_N->len ? input_N->x : NULL, input_N->len,
input_P->len ? input_P->x : NULL, input_P->len,
input_Q->len ? input_Q->x : NULL, input_Q->len,
input_D->len ? input_D->x : NULL, input_D->len,
input_E->len ? input_E->x : NULL, input_E->len) == 0);
TEST_ASSERT(mbedtls_rsa_complete(&ctx) == 0);
/*
* Export parameters and compare to original ones.
*/
/* N and E must always be present. */
if (!successive) {
TEST_ASSERT(mbedtls_rsa_export_raw(&ctx, bufNe, input_N->len,
NULL, 0, NULL, 0, NULL, 0,
bufEe, input_E->len) == 0);
} else {
TEST_ASSERT(mbedtls_rsa_export_raw(&ctx, bufNe, input_N->len,
NULL, 0, NULL, 0, NULL, 0,
NULL, 0) == 0);
TEST_ASSERT(mbedtls_rsa_export_raw(&ctx, NULL, 0,
NULL, 0, NULL, 0, NULL, 0,
bufEe, input_E->len) == 0);
}
TEST_ASSERT(memcmp(input_N->x, bufNe, input_N->len) == 0);
TEST_ASSERT(memcmp(input_E->x, bufEe, input_E->len) == 0);
/* If we were providing enough information to setup a complete private context,
* we expect to be able to export all core parameters. */
if (is_priv) {
if (!successive) {
TEST_ASSERT(mbedtls_rsa_export_raw(&ctx, NULL, 0,
bufPe, input_P->len ? input_P->len : sizeof(bufPe),
bufQe, input_Q->len ? input_Q->len : sizeof(bufQe),
bufDe, input_D->len ? input_D->len : sizeof(bufDe),
NULL, 0) == 0);
} else {
TEST_ASSERT(mbedtls_rsa_export_raw(&ctx, NULL, 0,
bufPe, input_P->len ? input_P->len : sizeof(bufPe),
NULL, 0, NULL, 0,
NULL, 0) == 0);
TEST_ASSERT(mbedtls_rsa_export_raw(&ctx, NULL, 0, NULL, 0,
bufQe, input_Q->len ? input_Q->len : sizeof(bufQe),
NULL, 0, NULL, 0) == 0);
TEST_ASSERT(mbedtls_rsa_export_raw(&ctx, NULL, 0, NULL, 0, NULL, 0,
bufDe, input_D->len ? input_D->len : sizeof(bufDe),
NULL, 0) == 0);
}
if (input_P->len) {
TEST_ASSERT(memcmp(input_P->x, bufPe, input_P->len) == 0);
}
if (input_Q->len) {
TEST_ASSERT(memcmp(input_Q->x, bufQe, input_Q->len) == 0);
}
if (input_D->len) {
TEST_ASSERT(memcmp(input_D->x, bufDe, input_D->len) == 0);
}
}
exit:
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_rsa_import_raw(data_t *input_N,
data_t *input_P, data_t *input_Q,
data_t *input_D, data_t *input_E,
int successive,
int is_priv,
int res_check,
int res_complete)
{
/* Buffers used for encryption-decryption test */
unsigned char *buf_orig = NULL;
unsigned char *buf_enc = NULL;
unsigned char *buf_dec = NULL;
mbedtls_rsa_context ctx;
mbedtls_rsa_init(&ctx);
if (!successive) {
TEST_ASSERT(mbedtls_rsa_import_raw(&ctx,
(input_N->len > 0) ? input_N->x : NULL, input_N->len,
(input_P->len > 0) ? input_P->x : NULL, input_P->len,
(input_Q->len > 0) ? input_Q->x : NULL, input_Q->len,
(input_D->len > 0) ? input_D->x : NULL, input_D->len,
(input_E->len > 0) ? input_E->x : NULL,
input_E->len) == 0);
} else {
/* Import N, P, Q, D, E separately.
* This should make no functional difference. */
TEST_ASSERT(mbedtls_rsa_import_raw(&ctx,
(input_N->len > 0) ? input_N->x : NULL, input_N->len,
NULL, 0, NULL, 0, NULL, 0, NULL, 0) == 0);
TEST_ASSERT(mbedtls_rsa_import_raw(&ctx,
NULL, 0,
(input_P->len > 0) ? input_P->x : NULL, input_P->len,
NULL, 0, NULL, 0, NULL, 0) == 0);
TEST_ASSERT(mbedtls_rsa_import_raw(&ctx,
NULL, 0, NULL, 0,
(input_Q->len > 0) ? input_Q->x : NULL, input_Q->len,
NULL, 0, NULL, 0) == 0);
TEST_ASSERT(mbedtls_rsa_import_raw(&ctx,
NULL, 0, NULL, 0, NULL, 0,
(input_D->len > 0) ? input_D->x : NULL, input_D->len,
NULL, 0) == 0);
TEST_ASSERT(mbedtls_rsa_import_raw(&ctx,
NULL, 0, NULL, 0, NULL, 0, NULL, 0,
(input_E->len > 0) ? input_E->x : NULL,
input_E->len) == 0);
}
TEST_ASSERT(mbedtls_rsa_complete(&ctx) == res_complete);
/* On expected success, perform some public and private
* key operations to check if the key is working properly. */
if (res_complete == 0) {
if (is_priv) {
TEST_ASSERT(mbedtls_rsa_check_privkey(&ctx) == res_check);
} else {
TEST_ASSERT(mbedtls_rsa_check_pubkey(&ctx) == res_check);
}
if (res_check != 0) {
goto exit;
}
buf_orig = mbedtls_calloc(1, mbedtls_rsa_get_len(&ctx));
buf_enc = mbedtls_calloc(1, mbedtls_rsa_get_len(&ctx));
buf_dec = mbedtls_calloc(1, mbedtls_rsa_get_len(&ctx));
if (buf_orig == NULL || buf_enc == NULL || buf_dec == NULL) {
goto exit;
}
/* This test uses an insecure RNG, suitable only for testing.
* In production, always use a cryptographically strong RNG! */
TEST_ASSERT(mbedtls_test_rnd_std_rand(NULL,
buf_orig, mbedtls_rsa_get_len(&ctx)) == 0);
/* Make sure the number we're generating is smaller than the modulus */
buf_orig[0] = 0x00;
TEST_ASSERT(mbedtls_rsa_public(&ctx, buf_orig, buf_enc) == 0);
if (is_priv) {
/* This test uses an insecure RNG, suitable only for testing.
* In production, always use a cryptographically strong RNG! */
TEST_ASSERT(mbedtls_rsa_private(&ctx, mbedtls_test_rnd_std_rand,
NULL, buf_enc,
buf_dec) == 0);
TEST_ASSERT(memcmp(buf_orig, buf_dec,
mbedtls_rsa_get_len(&ctx)) == 0);
}
}
exit:
mbedtls_free(buf_orig);
mbedtls_free(buf_enc);
mbedtls_free(buf_dec);
mbedtls_rsa_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_parse_pkcs1_key(int is_public, data_t *input, int exp_ret_val)
{
mbedtls_rsa_context rsa_ctx;
mbedtls_rsa_init(&rsa_ctx);
if (is_public) {
TEST_EQUAL(mbedtls_rsa_parse_pubkey(&rsa_ctx, input->x, input->len), exp_ret_val);
} else {
TEST_EQUAL(mbedtls_rsa_parse_key(&rsa_ctx, input->x, input->len), exp_ret_val);
}
exit:
mbedtls_rsa_free(&rsa_ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_parse_write_pkcs1_key(int is_public, data_t *input)
{
mbedtls_rsa_context rsa_ctx;
unsigned char *output_buf = NULL;
unsigned char *output_end, *output_p;
size_t output_len;
mbedtls_rsa_init(&rsa_ctx);
TEST_CALLOC(output_buf, input->len);
output_end = output_buf + input->len;
output_p = output_end;
/* Parse the key and write it back to output_buf. */
if (is_public) {
TEST_EQUAL(mbedtls_rsa_parse_pubkey(&rsa_ctx, input->x, input->len), 0);
TEST_EQUAL(mbedtls_rsa_write_pubkey(&rsa_ctx, output_buf, &output_p), input->len);
} else {
TEST_EQUAL(mbedtls_rsa_parse_key(&rsa_ctx, input->x, input->len), 0);
TEST_EQUAL(mbedtls_rsa_write_key(&rsa_ctx, output_buf, &output_p), input->len);
}
output_len = output_end - output_p;
/* Check that the written key matches with the one provided in input. */
TEST_MEMORY_COMPARE(output_p, output_len, input->x, input->len);
exit:
mbedtls_free(output_buf);
mbedtls_rsa_free(&rsa_ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void rsa_key_write_incremental(int is_public, data_t *input)
{
mbedtls_rsa_context rsa_ctx;
unsigned char *buf = NULL, *end, *p;
size_t i, written_data;
mbedtls_rsa_init(&rsa_ctx);
/* This is supposed to succeed as the real target of this test are the
* write attempt below. */
if (is_public) {
TEST_EQUAL(mbedtls_rsa_parse_pubkey(&rsa_ctx, input->x, input->len), 0);
} else {
TEST_EQUAL(mbedtls_rsa_parse_key(&rsa_ctx, input->x, input->len), 0);
}
/* Test with an output buffer smaller than required. */
for (i = 1; i < input->len; i++) {
TEST_CALLOC(buf, i);
end = buf + i;
p = end;
/* We don't care much about the return value as long as it fails. */
if (is_public) {
TEST_ASSERT(mbedtls_rsa_write_pubkey(&rsa_ctx, buf, &p) != 0);
} else {
TEST_ASSERT(mbedtls_rsa_write_key(&rsa_ctx, buf, &p) != 0);
}
mbedtls_free(buf);
buf = NULL;
}
/* Test with an output buffer equal or larger than what it is strictly required. */
for (i = input->len; i < (2 * input->len); i++) {
TEST_CALLOC(buf, i);
end = buf + i;
p = end;
/* This time all write functions must succeed. */
if (is_public) {
TEST_ASSERT(mbedtls_rsa_write_pubkey(&rsa_ctx, buf, &p) > 0);
} else {
TEST_ASSERT(mbedtls_rsa_write_key(&rsa_ctx, buf, &p) > 0);
}
written_data = (end - p);
TEST_MEMORY_COMPARE(p, written_data, input->x, input->len);
mbedtls_free(buf);
buf = NULL;
}
exit:
mbedtls_free(buf);
mbedtls_rsa_free(&rsa_ctx);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
void rsa_selftest()
{
MD_PSA_INIT();
TEST_ASSERT(mbedtls_rsa_self_test(1) == 0);
exit:
MD_PSA_DONE();
}
/* END_CASE */
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