1435 lines
46 KiB
C
1435 lines
46 KiB
C
/* BEGIN_HEADER */
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#include "mbedtls/ecp.h"
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#include "ecp_invasive.h"
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#include "mbedtls/ecdsa.h"
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#include "mbedtls/ecdh.h"
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#include "bignum_core.h"
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#include "ecp_invasive.h"
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#include "bignum_mod_raw_invasive.h"
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#define ECP_PF_UNKNOWN -1
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#define ECP_PT_RESET(x) \
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mbedtls_ecp_point_free(x); \
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mbedtls_ecp_point_init(x);
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/* Auxiliary function to compare two mbedtls_ecp_group objects. */
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inline static int mbedtls_ecp_group_cmp(mbedtls_ecp_group *grp1,
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mbedtls_ecp_group *grp2)
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{
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if (mbedtls_mpi_cmp_mpi(&grp1->P, &grp2->P) != 0) {
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return 1;
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}
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if (mbedtls_mpi_cmp_mpi(&grp1->A, &grp2->A) != 0) {
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return 1;
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}
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if (mbedtls_mpi_cmp_mpi(&grp1->B, &grp2->B) != 0) {
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return 1;
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}
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if (mbedtls_mpi_cmp_mpi(&grp1->N, &grp2->N) != 0) {
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return 1;
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}
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if (mbedtls_ecp_point_cmp(&grp1->G, &grp2->G) != 0) {
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return 1;
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}
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if (grp1->id != grp2->id) {
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return 1;
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}
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if (grp1->pbits != grp2->pbits) {
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return 1;
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}
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if (grp1->nbits != grp2->nbits) {
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return 1;
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}
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if (grp1->h != grp2->h) {
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return 1;
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}
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if (grp1->modp != grp2->modp) {
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return 1;
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}
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if (grp1->t_pre != grp2->t_pre) {
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return 1;
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}
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if (grp1->t_post != grp2->t_post) {
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return 1;
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}
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if (grp1->t_data != grp2->t_data) {
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return 1;
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}
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if (grp1->T_size != grp2->T_size) {
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return 1;
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}
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if (grp1->T != grp2->T) {
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return 1;
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}
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return 0;
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}
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_ECP_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE */
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void ecp_invalid_param()
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{
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mbedtls_ecp_group grp;
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mbedtls_ecp_point P;
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int invalid_fmt = 42;
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size_t olen;
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unsigned char buf[42] = { 0 };
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mbedtls_ecp_group_init(&grp);
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mbedtls_ecp_point_init(&P);
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TEST_EQUAL(MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
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mbedtls_ecp_point_write_binary(&grp, &P,
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invalid_fmt,
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&olen,
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buf, sizeof(buf)));
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TEST_EQUAL(MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
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mbedtls_ecp_tls_write_point(&grp, &P,
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invalid_fmt,
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&olen,
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buf,
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sizeof(buf)));
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exit:
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return;
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void mbedtls_ecp_curve_info(int id, int tls_id, int size, char *name)
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{
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const mbedtls_ecp_curve_info *by_id, *by_tls, *by_name;
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by_id = mbedtls_ecp_curve_info_from_grp_id(id);
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by_tls = mbedtls_ecp_curve_info_from_tls_id(tls_id);
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by_name = mbedtls_ecp_curve_info_from_name(name);
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TEST_ASSERT(by_id != NULL);
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TEST_ASSERT(by_tls != NULL);
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TEST_ASSERT(by_name != NULL);
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TEST_ASSERT(by_id == by_tls);
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TEST_ASSERT(by_id == by_name);
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TEST_ASSERT(by_id->bit_size == size);
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TEST_ASSERT(size <= MBEDTLS_ECP_MAX_BITS);
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TEST_ASSERT(size <= MBEDTLS_ECP_MAX_BYTES * 8);
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void ecp_check_pub(int grp_id, char *x_hex, char *y_hex, char *z_hex,
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int ret)
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{
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mbedtls_ecp_group grp;
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mbedtls_ecp_point P;
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mbedtls_ecp_group_init(&grp);
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mbedtls_ecp_point_init(&P);
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, grp_id) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&P.X, x_hex) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&P.Y, y_hex) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&P.Z, z_hex) == 0);
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TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &P) == ret);
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exit:
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mbedtls_ecp_group_free(&grp);
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mbedtls_ecp_point_free(&P);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_ECP_RESTARTABLE */
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void ecp_test_vect_restart(int id,
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char *dA_str, char *xA_str, char *yA_str,
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char *dB_str, char *xZ_str, char *yZ_str,
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int max_ops, int min_restarts, int max_restarts)
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{
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/*
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* Test for early restart. Based on test vectors like ecp_test_vect(),
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* but for the sake of simplicity only does half of each side. It's
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* important to test both base point and random point, though, as memory
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* management is different in each case.
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*
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* Don't try using too precise bounds for restarts as the exact number
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* will depend on settings such as MBEDTLS_ECP_FIXED_POINT_OPTIM and
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* MBEDTLS_ECP_WINDOW_SIZE, as well as implementation details that may
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* change in the future. A factor 2 is a minimum safety margin.
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*
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* For reference, with mbed TLS 2.4 and default settings, for P-256:
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* - Random point mult: ~3250M
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* - Cold base point mult: ~3300M
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* - Hot base point mult: ~1100M
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* With MBEDTLS_ECP_WINDOW_SIZE set to 2 (minimum):
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* - Random point mult: ~3850M
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*/
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mbedtls_ecp_restart_ctx ctx;
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mbedtls_ecp_group grp;
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mbedtls_ecp_point R, P;
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mbedtls_mpi dA, xA, yA, dB, xZ, yZ;
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int cnt_restarts;
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int ret;
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mbedtls_test_rnd_pseudo_info rnd_info;
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mbedtls_ecp_restart_init(&ctx);
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mbedtls_ecp_group_init(&grp);
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mbedtls_ecp_point_init(&R); mbedtls_ecp_point_init(&P);
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mbedtls_mpi_init(&dA); mbedtls_mpi_init(&xA); mbedtls_mpi_init(&yA);
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mbedtls_mpi_init(&dB); mbedtls_mpi_init(&xZ); mbedtls_mpi_init(&yZ);
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memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&dA, dA_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&xA, xA_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&yA, yA_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&dB, dB_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&xZ, xZ_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&yZ, yZ_str) == 0);
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mbedtls_ecp_set_max_ops((unsigned) max_ops);
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/* Base point case */
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cnt_restarts = 0;
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do {
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ECP_PT_RESET(&R);
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ret = mbedtls_ecp_mul_restartable(&grp, &R, &dA, &grp.G,
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&mbedtls_test_rnd_pseudo_rand, &rnd_info, &ctx);
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} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restarts);
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TEST_ASSERT(ret == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xA) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.Y, &yA) == 0);
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TEST_ASSERT(cnt_restarts >= min_restarts);
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TEST_ASSERT(cnt_restarts <= max_restarts);
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/* Non-base point case */
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mbedtls_ecp_copy(&P, &R);
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cnt_restarts = 0;
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do {
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ECP_PT_RESET(&R);
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ret = mbedtls_ecp_mul_restartable(&grp, &R, &dB, &P,
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&mbedtls_test_rnd_pseudo_rand, &rnd_info, &ctx);
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} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restarts);
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TEST_ASSERT(ret == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xZ) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.Y, &yZ) == 0);
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TEST_ASSERT(cnt_restarts >= min_restarts);
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TEST_ASSERT(cnt_restarts <= max_restarts);
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/* Do we leak memory when aborting an operation?
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* This test only makes sense when we actually restart */
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if (min_restarts > 0) {
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ret = mbedtls_ecp_mul_restartable(&grp, &R, &dB, &P,
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&mbedtls_test_rnd_pseudo_rand, &rnd_info, &ctx);
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TEST_ASSERT(ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
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}
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exit:
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mbedtls_ecp_restart_free(&ctx);
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mbedtls_ecp_group_free(&grp);
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mbedtls_ecp_point_free(&R); mbedtls_ecp_point_free(&P);
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mbedtls_mpi_free(&dA); mbedtls_mpi_free(&xA); mbedtls_mpi_free(&yA);
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mbedtls_mpi_free(&dB); mbedtls_mpi_free(&xZ); mbedtls_mpi_free(&yZ);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_ECP_RESTARTABLE:MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED */
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void ecp_muladd_restart(int id, char *xR_str, char *yR_str,
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char *u1_str, char *u2_str,
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char *xQ_str, char *yQ_str,
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int max_ops, int min_restarts, int max_restarts)
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{
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/*
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* Compute R = u1 * G + u2 * Q
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* (test vectors mostly taken from ECDSA intermediate results)
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*
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* See comments at the top of ecp_test_vect_restart()
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*/
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mbedtls_ecp_restart_ctx ctx;
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mbedtls_ecp_group grp;
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mbedtls_ecp_point R, Q;
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mbedtls_mpi u1, u2, xR, yR;
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int cnt_restarts;
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int ret;
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mbedtls_ecp_restart_init(&ctx);
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mbedtls_ecp_group_init(&grp);
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mbedtls_ecp_point_init(&R);
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mbedtls_ecp_point_init(&Q);
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mbedtls_mpi_init(&u1); mbedtls_mpi_init(&u2);
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mbedtls_mpi_init(&xR); mbedtls_mpi_init(&yR);
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&u1, u1_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&u2, u2_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&xR, xR_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&yR, yR_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&Q.X, xQ_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&Q.Y, yQ_str) == 0);
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TEST_ASSERT(mbedtls_mpi_lset(&Q.Z, 1) == 0);
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mbedtls_ecp_set_max_ops((unsigned) max_ops);
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cnt_restarts = 0;
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do {
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ECP_PT_RESET(&R);
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ret = mbedtls_ecp_muladd_restartable(&grp, &R,
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&u1, &grp.G, &u2, &Q, &ctx);
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} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restarts);
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TEST_ASSERT(ret == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xR) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.Y, &yR) == 0);
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TEST_ASSERT(cnt_restarts >= min_restarts);
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TEST_ASSERT(cnt_restarts <= max_restarts);
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/* Do we leak memory when aborting an operation?
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* This test only makes sense when we actually restart */
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if (min_restarts > 0) {
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ret = mbedtls_ecp_muladd_restartable(&grp, &R,
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&u1, &grp.G, &u2, &Q, &ctx);
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TEST_ASSERT(ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
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}
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exit:
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mbedtls_ecp_restart_free(&ctx);
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mbedtls_ecp_group_free(&grp);
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mbedtls_ecp_point_free(&R);
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mbedtls_ecp_point_free(&Q);
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mbedtls_mpi_free(&u1); mbedtls_mpi_free(&u2);
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mbedtls_mpi_free(&xR); mbedtls_mpi_free(&yR);
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void ecp_test_vect(int id, char *dA_str, char *xA_str, char *yA_str,
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char *dB_str, char *xB_str, char *yB_str,
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char *xZ_str, char *yZ_str)
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{
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mbedtls_ecp_group grp;
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mbedtls_ecp_point R;
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mbedtls_mpi dA, xA, yA, dB, xB, yB, xZ, yZ;
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mbedtls_test_rnd_pseudo_info rnd_info;
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mbedtls_ecp_group_init(&grp); mbedtls_ecp_point_init(&R);
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mbedtls_mpi_init(&dA); mbedtls_mpi_init(&xA); mbedtls_mpi_init(&yA); mbedtls_mpi_init(&dB);
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mbedtls_mpi_init(&xB); mbedtls_mpi_init(&yB); mbedtls_mpi_init(&xZ); mbedtls_mpi_init(&yZ);
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memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
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TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &grp.G) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&dA, dA_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&xA, xA_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&yA, yA_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&dB, dB_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&xB, xB_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&yB, yB_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&xZ, xZ_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&yZ, yZ_str) == 0);
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TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &dA, &grp.G,
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&mbedtls_test_rnd_pseudo_rand, &rnd_info) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xA) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.Y, &yA) == 0);
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TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &R) == 0);
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TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &dB, &R,
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&mbedtls_test_rnd_pseudo_rand, &rnd_info) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xZ) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.Y, &yZ) == 0);
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TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &R) == 0);
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TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &dB, &grp.G,
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&mbedtls_test_rnd_pseudo_rand, &rnd_info) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xB) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.Y, &yB) == 0);
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TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &R) == 0);
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TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &dA, &R,
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&mbedtls_test_rnd_pseudo_rand, &rnd_info) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xZ) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.Y, &yZ) == 0);
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TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &R) == 0);
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exit:
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mbedtls_ecp_group_free(&grp); mbedtls_ecp_point_free(&R);
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mbedtls_mpi_free(&dA); mbedtls_mpi_free(&xA); mbedtls_mpi_free(&yA); mbedtls_mpi_free(&dB);
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mbedtls_mpi_free(&xB); mbedtls_mpi_free(&yB); mbedtls_mpi_free(&xZ); mbedtls_mpi_free(&yZ);
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void ecp_test_vec_x(int id, char *dA_hex, char *xA_hex, char *dB_hex,
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char *xB_hex, char *xS_hex)
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{
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mbedtls_ecp_group grp;
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mbedtls_ecp_point R;
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mbedtls_mpi dA, xA, dB, xB, xS;
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mbedtls_test_rnd_pseudo_info rnd_info;
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mbedtls_ecp_group_init(&grp); mbedtls_ecp_point_init(&R);
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mbedtls_mpi_init(&dA); mbedtls_mpi_init(&xA);
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mbedtls_mpi_init(&dB); mbedtls_mpi_init(&xB);
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mbedtls_mpi_init(&xS);
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memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
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TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &grp.G) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&dA, dA_hex) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&dB, dB_hex) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&xA, xA_hex) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&xB, xB_hex) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&xS, xS_hex) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &dA, &grp.G,
|
|
&mbedtls_test_rnd_pseudo_rand, &rnd_info) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &R) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xA) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &dB, &R,
|
|
&mbedtls_test_rnd_pseudo_rand, &rnd_info) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &R) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xS) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &dB, &grp.G,
|
|
&mbedtls_test_rnd_pseudo_rand, &rnd_info) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &R) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xB) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &dA, &R,
|
|
&mbedtls_test_rnd_pseudo_rand, &rnd_info) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &R) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&R.X, &xS) == 0);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp); mbedtls_ecp_point_free(&R);
|
|
mbedtls_mpi_free(&dA); mbedtls_mpi_free(&xA);
|
|
mbedtls_mpi_free(&dB); mbedtls_mpi_free(&xB);
|
|
mbedtls_mpi_free(&xS);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_test_mul(int id, data_t *n_hex,
|
|
data_t *Px_hex, data_t *Py_hex, data_t *Pz_hex,
|
|
data_t *nPx_hex, data_t *nPy_hex, data_t *nPz_hex,
|
|
int expected_ret)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_ecp_point P, nP, R;
|
|
mbedtls_mpi n;
|
|
mbedtls_test_rnd_pseudo_info rnd_info;
|
|
|
|
mbedtls_ecp_group_init(&grp); mbedtls_ecp_point_init(&R);
|
|
mbedtls_ecp_point_init(&P); mbedtls_ecp_point_init(&nP);
|
|
mbedtls_mpi_init(&n);
|
|
memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &grp.G) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_mpi_read_binary(&n, n_hex->x, n_hex->len) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_mpi_read_binary(&P.X, Px_hex->x, Px_hex->len) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_read_binary(&P.Y, Py_hex->x, Py_hex->len) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_read_binary(&P.Z, Pz_hex->x, Pz_hex->len) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_read_binary(&nP.X, nPx_hex->x, nPx_hex->len)
|
|
== 0);
|
|
TEST_ASSERT(mbedtls_mpi_read_binary(&nP.Y, nPy_hex->x, nPy_hex->len)
|
|
== 0);
|
|
TEST_ASSERT(mbedtls_mpi_read_binary(&nP.Z, nPz_hex->x, nPz_hex->len)
|
|
== 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_mul(&grp, &R, &n, &P,
|
|
&mbedtls_test_rnd_pseudo_rand, &rnd_info)
|
|
== expected_ret);
|
|
|
|
if (expected_ret == 0) {
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&nP.X, &R.X) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&nP.Y, &R.Y) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&nP.Z, &R.Z) == 0);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp); mbedtls_ecp_point_free(&R);
|
|
mbedtls_ecp_point_free(&P); mbedtls_ecp_point_free(&nP);
|
|
mbedtls_mpi_free(&n);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_test_mul_rng(int id, data_t *d_hex)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_mpi d;
|
|
mbedtls_ecp_point Q;
|
|
|
|
mbedtls_ecp_group_init(&grp); mbedtls_mpi_init(&d);
|
|
mbedtls_ecp_point_init(&Q);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &grp.G) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_mpi_read_binary(&d, d_hex->x, d_hex->len) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_mul(&grp, &Q, &d, &grp.G,
|
|
&mbedtls_test_rnd_zero_rand, NULL)
|
|
== MBEDTLS_ERR_ECP_RANDOM_FAILED);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp); mbedtls_mpi_free(&d);
|
|
mbedtls_ecp_point_free(&Q);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED */
|
|
void ecp_muladd(int id,
|
|
data_t *u1_bin, data_t *P1_bin,
|
|
data_t *u2_bin, data_t *P2_bin,
|
|
data_t *expected_result)
|
|
{
|
|
/* Compute R = u1 * P1 + u2 * P2 */
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_ecp_point P1, P2, R;
|
|
mbedtls_mpi u1, u2;
|
|
uint8_t actual_result[MBEDTLS_ECP_MAX_PT_LEN];
|
|
size_t len;
|
|
|
|
mbedtls_ecp_group_init(&grp);
|
|
mbedtls_ecp_point_init(&P1);
|
|
mbedtls_ecp_point_init(&P2);
|
|
mbedtls_ecp_point_init(&R);
|
|
mbedtls_mpi_init(&u1);
|
|
mbedtls_mpi_init(&u2);
|
|
|
|
TEST_EQUAL(0, mbedtls_ecp_group_load(&grp, id));
|
|
TEST_EQUAL(0, mbedtls_mpi_read_binary(&u1, u1_bin->x, u1_bin->len));
|
|
TEST_EQUAL(0, mbedtls_mpi_read_binary(&u2, u2_bin->x, u2_bin->len));
|
|
TEST_EQUAL(0, mbedtls_ecp_point_read_binary(&grp, &P1,
|
|
P1_bin->x, P1_bin->len));
|
|
TEST_EQUAL(0, mbedtls_ecp_point_read_binary(&grp, &P2,
|
|
P2_bin->x, P2_bin->len));
|
|
|
|
TEST_EQUAL(0, mbedtls_ecp_muladd(&grp, &R, &u1, &P1, &u2, &P2));
|
|
TEST_EQUAL(0, mbedtls_ecp_point_write_binary(
|
|
&grp, &R, MBEDTLS_ECP_PF_UNCOMPRESSED,
|
|
&len, actual_result, sizeof(actual_result)));
|
|
TEST_ASSERT(len <= MBEDTLS_ECP_MAX_PT_LEN);
|
|
|
|
ASSERT_COMPARE(expected_result->x, expected_result->len,
|
|
actual_result, len);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp);
|
|
mbedtls_ecp_point_free(&P1);
|
|
mbedtls_ecp_point_free(&P2);
|
|
mbedtls_ecp_point_free(&R);
|
|
mbedtls_mpi_free(&u1);
|
|
mbedtls_mpi_free(&u2);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_fast_mod(int id, char *N_str)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_mpi N, R;
|
|
|
|
mbedtls_mpi_init(&N); mbedtls_mpi_init(&R);
|
|
mbedtls_ecp_group_init(&grp);
|
|
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&N, N_str) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
TEST_ASSERT(grp.modp != NULL);
|
|
|
|
/*
|
|
* Store correct result before we touch N
|
|
*/
|
|
TEST_ASSERT(mbedtls_mpi_mod_mpi(&R, &N, &grp.P) == 0);
|
|
|
|
TEST_ASSERT(grp.modp(&N) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_bitlen(&N) <= grp.pbits + 3);
|
|
|
|
/*
|
|
* Use mod rather than addition/subtraction in case previous test fails
|
|
*/
|
|
TEST_ASSERT(mbedtls_mpi_mod_mpi(&N, &N, &grp.P) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&N, &R) == 0);
|
|
|
|
exit:
|
|
mbedtls_mpi_free(&N); mbedtls_mpi_free(&R);
|
|
mbedtls_ecp_group_free(&grp);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_write_binary(int id, char *x, char *y, char *z, int format,
|
|
data_t *out, int blen, int ret)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_ecp_point P;
|
|
unsigned char buf[256];
|
|
size_t olen;
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
mbedtls_ecp_group_init(&grp); mbedtls_ecp_point_init(&P);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&P.X, x) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&P.Y, y) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&P.Z, z) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_point_write_binary(&grp, &P, format,
|
|
&olen, buf, blen) == ret);
|
|
|
|
if (ret == 0) {
|
|
TEST_ASSERT(olen <= MBEDTLS_ECP_MAX_PT_LEN);
|
|
TEST_ASSERT(mbedtls_test_hexcmp(buf, out->x, olen, out->len) == 0);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp); mbedtls_ecp_point_free(&P);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_read_binary(int id, data_t *buf, char *x, char *y, char *z,
|
|
int ret)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_ecp_point P;
|
|
mbedtls_mpi X, Y, Z;
|
|
|
|
|
|
mbedtls_ecp_group_init(&grp); mbedtls_ecp_point_init(&P);
|
|
mbedtls_mpi_init(&X); mbedtls_mpi_init(&Y); mbedtls_mpi_init(&Z);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&X, x) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&Y, y) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&Z, z) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_point_read_binary(&grp, &P, buf->x, buf->len) == ret);
|
|
|
|
if (ret == 0) {
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&P.X, &X) == 0);
|
|
if (mbedtls_ecp_get_type(&grp) == MBEDTLS_ECP_TYPE_MONTGOMERY) {
|
|
TEST_ASSERT(mbedtls_mpi_cmp_int(&Y, 0) == 0);
|
|
TEST_ASSERT(P.Y.p == NULL);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_int(&Z, 1) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_int(&P.Z, 1) == 0);
|
|
} else {
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&P.Y, &Y) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&P.Z, &Z) == 0);
|
|
|
|
if (buf->x[0] == 0x04 &&
|
|
/* (reading compressed format supported only for
|
|
* Short Weierstrass curves with prime p where p = 3 mod 4) */
|
|
id != MBEDTLS_ECP_DP_SECP224R1 &&
|
|
id != MBEDTLS_ECP_DP_SECP224K1) {
|
|
/* re-encode in compressed format and test read again */
|
|
mbedtls_mpi_free(&P.Y);
|
|
buf->x[0] = 0x02 + mbedtls_mpi_get_bit(&Y, 0);
|
|
TEST_ASSERT(mbedtls_ecp_point_read_binary(&grp, &P, buf->x, buf->len/2+1) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&P.Y, &Y) == 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp); mbedtls_ecp_point_free(&P);
|
|
mbedtls_mpi_free(&X); mbedtls_mpi_free(&Y); mbedtls_mpi_free(&Z);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void mbedtls_ecp_tls_read_point(int id, data_t *buf, char *x, char *y,
|
|
char *z, int ret)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_ecp_point P;
|
|
mbedtls_mpi X, Y, Z;
|
|
const unsigned char *vbuf = buf->x;
|
|
|
|
|
|
mbedtls_ecp_group_init(&grp); mbedtls_ecp_point_init(&P);
|
|
mbedtls_mpi_init(&X); mbedtls_mpi_init(&Y); mbedtls_mpi_init(&Z);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&X, x) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&Y, y) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&Z, z) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_tls_read_point(&grp, &P, &vbuf, buf->len) == ret);
|
|
|
|
if (ret == 0) {
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&P.X, &X) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&P.Y, &Y) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&P.Z, &Z) == 0);
|
|
TEST_ASSERT((uint32_t) (vbuf - buf->x) == buf->len);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp); mbedtls_ecp_point_free(&P);
|
|
mbedtls_mpi_free(&X); mbedtls_mpi_free(&Y); mbedtls_mpi_free(&Z);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_tls_write_read_point(int id)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_ecp_point pt;
|
|
unsigned char buf[256];
|
|
const unsigned char *vbuf;
|
|
size_t olen;
|
|
|
|
mbedtls_ecp_group_init(&grp);
|
|
mbedtls_ecp_point_init(&pt);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
|
|
memset(buf, 0x00, sizeof(buf)); vbuf = buf;
|
|
TEST_ASSERT(mbedtls_ecp_tls_write_point(&grp, &grp.G,
|
|
MBEDTLS_ECP_PF_COMPRESSED, &olen, buf, 256) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_tls_read_point(&grp, &pt, &vbuf, olen) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&grp.G.X, &pt.X) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&grp.G.Y, &pt.Y) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&grp.G.Z, &pt.Z) == 0);
|
|
TEST_ASSERT(vbuf == buf + olen);
|
|
|
|
memset(buf, 0x00, sizeof(buf)); vbuf = buf;
|
|
TEST_ASSERT(mbedtls_ecp_tls_write_point(&grp, &grp.G,
|
|
MBEDTLS_ECP_PF_UNCOMPRESSED, &olen, buf, 256) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_tls_read_point(&grp, &pt, &vbuf, olen) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&grp.G.X, &pt.X) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&grp.G.Y, &pt.Y) == 0);
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&grp.G.Z, &pt.Z) == 0);
|
|
TEST_ASSERT(vbuf == buf + olen);
|
|
|
|
memset(buf, 0x00, sizeof(buf)); vbuf = buf;
|
|
TEST_ASSERT(mbedtls_ecp_set_zero(&pt) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_tls_write_point(&grp, &pt,
|
|
MBEDTLS_ECP_PF_COMPRESSED, &olen, buf, 256) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_tls_read_point(&grp, &pt, &vbuf, olen) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_is_zero(&pt));
|
|
TEST_ASSERT(vbuf == buf + olen);
|
|
|
|
memset(buf, 0x00, sizeof(buf)); vbuf = buf;
|
|
TEST_ASSERT(mbedtls_ecp_set_zero(&pt) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_tls_write_point(&grp, &pt,
|
|
MBEDTLS_ECP_PF_UNCOMPRESSED, &olen, buf, 256) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_tls_read_point(&grp, &pt, &vbuf, olen) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_is_zero(&pt));
|
|
TEST_ASSERT(vbuf == buf + olen);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp);
|
|
mbedtls_ecp_point_free(&pt);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void mbedtls_ecp_tls_read_group(data_t *buf, int result, int bits,
|
|
int record_len)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
const unsigned char *vbuf = buf->x;
|
|
int ret;
|
|
|
|
mbedtls_ecp_group_init(&grp);
|
|
|
|
ret = mbedtls_ecp_tls_read_group(&grp, &vbuf, buf->len);
|
|
|
|
TEST_ASSERT(ret == result);
|
|
if (ret == 0) {
|
|
TEST_ASSERT(mbedtls_mpi_bitlen(&grp.P) == (size_t) bits);
|
|
TEST_ASSERT(vbuf - buf->x == record_len);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_tls_write_read_group(int id)
|
|
{
|
|
mbedtls_ecp_group grp1, grp2;
|
|
unsigned char buf[10];
|
|
const unsigned char *vbuf = buf;
|
|
size_t len;
|
|
int ret;
|
|
|
|
mbedtls_ecp_group_init(&grp1);
|
|
mbedtls_ecp_group_init(&grp2);
|
|
memset(buf, 0x00, sizeof(buf));
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp1, id) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_tls_write_group(&grp1, &len, buf, 10) == 0);
|
|
ret = mbedtls_ecp_tls_read_group(&grp2, &vbuf, len);
|
|
TEST_ASSERT(ret == 0);
|
|
|
|
if (ret == 0) {
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&grp1.N, &grp2.N) == 0);
|
|
TEST_ASSERT(grp1.id == grp2.id);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp1);
|
|
mbedtls_ecp_group_free(&grp2);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void mbedtls_ecp_group_metadata(int id, int bit_size, int crv_type,
|
|
char *P, char *A, char *B,
|
|
char *G_x, char *G_y, char *N,
|
|
int tls_id)
|
|
{
|
|
mbedtls_ecp_group grp, grp_read, grp_cpy;
|
|
const mbedtls_ecp_group_id *g_id;
|
|
mbedtls_ecp_group_id read_g_id;
|
|
const mbedtls_ecp_curve_info *crv, *crv_tls_id, *crv_name;
|
|
|
|
mbedtls_mpi exp_P, exp_A, exp_B, exp_G_x, exp_G_y, exp_N;
|
|
|
|
unsigned char buf[3], ecparameters[3] = { 3, 0, tls_id };
|
|
const unsigned char *vbuf = buf;
|
|
size_t olen;
|
|
|
|
mbedtls_ecp_group_init(&grp);
|
|
mbedtls_ecp_group_init(&grp_read);
|
|
mbedtls_ecp_group_init(&grp_cpy);
|
|
|
|
mbedtls_mpi_init(&exp_P);
|
|
mbedtls_mpi_init(&exp_A);
|
|
mbedtls_mpi_init(&exp_B);
|
|
mbedtls_mpi_init(&exp_G_x);
|
|
mbedtls_mpi_init(&exp_G_y);
|
|
mbedtls_mpi_init(&exp_N);
|
|
|
|
// Read expected parameters
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&exp_P, P), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&exp_A, A), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&exp_G_x, G_x), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&exp_N, N), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&exp_B, B), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&exp_G_y, G_y), 0);
|
|
|
|
// Convert exp_A to internal representation (A+2)/4
|
|
if (crv_type == MBEDTLS_ECP_TYPE_MONTGOMERY) {
|
|
TEST_EQUAL(mbedtls_mpi_add_int(&exp_A, &exp_A, 2), 0);
|
|
TEST_EQUAL(mbedtls_mpi_div_int(&exp_A, NULL, &exp_A, 4), 0);
|
|
}
|
|
|
|
// Load group
|
|
TEST_EQUAL(mbedtls_ecp_group_load(&grp, id), 0);
|
|
|
|
// Compare group with expected parameters
|
|
// A is NULL for SECPxxxR1 curves
|
|
// B and G_y are NULL for curve25519 and curve448
|
|
TEST_EQUAL(mbedtls_mpi_cmp_mpi(&exp_P, &grp.P), 0);
|
|
if (*A != 0) {
|
|
TEST_EQUAL(mbedtls_mpi_cmp_mpi(&exp_A, &grp.A), 0);
|
|
}
|
|
if (*B != 0) {
|
|
TEST_EQUAL(mbedtls_mpi_cmp_mpi(&exp_B, &grp.B), 0);
|
|
}
|
|
TEST_EQUAL(mbedtls_mpi_cmp_mpi(&exp_G_x, &grp.G.X), 0);
|
|
if (*G_y != 0) {
|
|
TEST_EQUAL(mbedtls_mpi_cmp_mpi(&exp_G_y, &grp.G.Y), 0);
|
|
}
|
|
TEST_EQUAL(mbedtls_mpi_cmp_mpi(&exp_N, &grp.N), 0);
|
|
|
|
// Load curve info and compare with known values
|
|
crv = mbedtls_ecp_curve_info_from_grp_id(id);
|
|
TEST_EQUAL(crv->grp_id, id);
|
|
TEST_EQUAL(crv->bit_size, bit_size);
|
|
TEST_EQUAL(crv->tls_id, tls_id);
|
|
|
|
// Load curve from TLS ID and name, and compare IDs
|
|
crv_tls_id = mbedtls_ecp_curve_info_from_tls_id(crv->tls_id);
|
|
crv_name = mbedtls_ecp_curve_info_from_name(crv->name);
|
|
TEST_EQUAL(crv_tls_id->grp_id, id);
|
|
TEST_EQUAL(crv_name->grp_id, id);
|
|
|
|
// Validate write_group against test data
|
|
TEST_EQUAL(mbedtls_ecp_tls_write_group(&grp, &olen,
|
|
buf, sizeof(buf)),
|
|
0);
|
|
TEST_EQUAL(mbedtls_test_hexcmp(buf, ecparameters, olen,
|
|
sizeof(ecparameters)),
|
|
0);
|
|
|
|
// Read group from buffer and compare with expected ID
|
|
TEST_EQUAL(mbedtls_ecp_tls_read_group_id(&read_g_id, &vbuf, olen),
|
|
0);
|
|
TEST_EQUAL(read_g_id, id);
|
|
vbuf = buf;
|
|
TEST_EQUAL(mbedtls_ecp_tls_read_group(&grp_read, &vbuf, olen),
|
|
0);
|
|
TEST_EQUAL(grp_read.id, id);
|
|
|
|
// Check curve type, and if it can be used for ECDH/ECDSA
|
|
TEST_EQUAL(mbedtls_ecp_get_type(&grp), crv_type);
|
|
#if defined(MBEDTLS_ECDH_C)
|
|
TEST_EQUAL(mbedtls_ecdh_can_do(id), 1);
|
|
#endif
|
|
#if defined(MBEDTLS_ECDSA_C)
|
|
TEST_EQUAL(mbedtls_ecdsa_can_do(id),
|
|
crv_type == MBEDTLS_ECP_TYPE_SHORT_WEIERSTRASS);
|
|
#endif
|
|
|
|
// Copy group and compare with original
|
|
TEST_EQUAL(mbedtls_ecp_group_copy(&grp_cpy, &grp), 0);
|
|
TEST_EQUAL(mbedtls_ecp_group_cmp(&grp, &grp_cpy), 0);
|
|
|
|
// Check curve is in curve list and group ID list
|
|
for (crv = mbedtls_ecp_curve_list();
|
|
crv->grp_id != MBEDTLS_ECP_DP_NONE &&
|
|
crv->grp_id != (unsigned) id;
|
|
crv++) {
|
|
;
|
|
}
|
|
TEST_EQUAL(crv->grp_id, id);
|
|
for (g_id = mbedtls_ecp_grp_id_list();
|
|
*g_id != MBEDTLS_ECP_DP_NONE && *g_id != (unsigned) id;
|
|
g_id++) {
|
|
;
|
|
}
|
|
TEST_EQUAL(*g_id, (unsigned) id);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp); mbedtls_ecp_group_free(&grp_cpy);
|
|
mbedtls_ecp_group_free(&grp_read);
|
|
mbedtls_mpi_free(&exp_P); mbedtls_mpi_free(&exp_A);
|
|
mbedtls_mpi_free(&exp_B); mbedtls_mpi_free(&exp_G_x);
|
|
mbedtls_mpi_free(&exp_G_y); mbedtls_mpi_free(&exp_N);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void mbedtls_ecp_check_privkey(int id, char *key_hex, int ret)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_mpi d;
|
|
|
|
mbedtls_ecp_group_init(&grp);
|
|
mbedtls_mpi_init(&d);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&d, key_hex) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_check_privkey(&grp, &d) == ret);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp);
|
|
mbedtls_mpi_free(&d);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void mbedtls_ecp_check_pub_priv(int id_pub, char *Qx_pub, char *Qy_pub,
|
|
int id, char *d, char *Qx, char *Qy,
|
|
int ret)
|
|
{
|
|
mbedtls_ecp_keypair pub, prv;
|
|
mbedtls_test_rnd_pseudo_info rnd_info;
|
|
|
|
mbedtls_ecp_keypair_init(&pub);
|
|
mbedtls_ecp_keypair_init(&prv);
|
|
memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
|
|
|
|
if (id_pub != MBEDTLS_ECP_DP_NONE) {
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&pub.grp, id_pub) == 0);
|
|
}
|
|
TEST_ASSERT(mbedtls_ecp_point_read_string(&pub.Q, 16, Qx_pub, Qy_pub) == 0);
|
|
|
|
if (id != MBEDTLS_ECP_DP_NONE) {
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&prv.grp, id) == 0);
|
|
}
|
|
TEST_ASSERT(mbedtls_ecp_point_read_string(&prv.Q, 16, Qx, Qy) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&prv.d, d) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_check_pub_priv(&pub, &prv,
|
|
&mbedtls_test_rnd_pseudo_rand, &rnd_info) == ret);
|
|
|
|
exit:
|
|
mbedtls_ecp_keypair_free(&pub);
|
|
mbedtls_ecp_keypair_free(&prv);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void mbedtls_ecp_gen_keypair(int id)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_ecp_point Q;
|
|
mbedtls_mpi d;
|
|
mbedtls_test_rnd_pseudo_info rnd_info;
|
|
|
|
mbedtls_ecp_group_init(&grp);
|
|
mbedtls_ecp_point_init(&Q);
|
|
mbedtls_mpi_init(&d);
|
|
memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_gen_keypair(&grp, &d, &Q,
|
|
&mbedtls_test_rnd_pseudo_rand,
|
|
&rnd_info) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_check_pubkey(&grp, &Q) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_check_privkey(&grp, &d) == 0);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp);
|
|
mbedtls_ecp_point_free(&Q);
|
|
mbedtls_mpi_free(&d);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void mbedtls_ecp_gen_key(int id)
|
|
{
|
|
mbedtls_ecp_keypair key;
|
|
mbedtls_test_rnd_pseudo_info rnd_info;
|
|
|
|
mbedtls_ecp_keypair_init(&key);
|
|
memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
|
|
|
|
TEST_ASSERT(mbedtls_ecp_gen_key(id, &key,
|
|
&mbedtls_test_rnd_pseudo_rand,
|
|
&rnd_info) == 0);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_check_pubkey(&key.grp, &key.Q) == 0);
|
|
TEST_ASSERT(mbedtls_ecp_check_privkey(&key.grp, &key.d) == 0);
|
|
|
|
exit:
|
|
mbedtls_ecp_keypair_free(&key);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void mbedtls_ecp_read_key(int grp_id, data_t *in_key, int expected, int canonical)
|
|
{
|
|
int ret = 0;
|
|
mbedtls_ecp_keypair key;
|
|
mbedtls_ecp_keypair key2;
|
|
|
|
mbedtls_ecp_keypair_init(&key);
|
|
mbedtls_ecp_keypair_init(&key2);
|
|
|
|
ret = mbedtls_ecp_read_key(grp_id, &key, in_key->x, in_key->len);
|
|
TEST_ASSERT(ret == expected);
|
|
|
|
if (expected == 0) {
|
|
ret = mbedtls_ecp_check_privkey(&key.grp, &key.d);
|
|
TEST_ASSERT(ret == 0);
|
|
|
|
if (canonical) {
|
|
unsigned char buf[MBEDTLS_ECP_MAX_BYTES];
|
|
|
|
ret = mbedtls_ecp_write_key(&key, buf, in_key->len);
|
|
TEST_ASSERT(ret == 0);
|
|
|
|
ASSERT_COMPARE(in_key->x, in_key->len,
|
|
buf, in_key->len);
|
|
} else {
|
|
unsigned char export1[MBEDTLS_ECP_MAX_BYTES];
|
|
unsigned char export2[MBEDTLS_ECP_MAX_BYTES];
|
|
|
|
ret = mbedtls_ecp_write_key(&key, export1, in_key->len);
|
|
TEST_ASSERT(ret == 0);
|
|
|
|
ret = mbedtls_ecp_read_key(grp_id, &key2, export1, in_key->len);
|
|
TEST_ASSERT(ret == expected);
|
|
|
|
ret = mbedtls_ecp_write_key(&key2, export2, in_key->len);
|
|
TEST_ASSERT(ret == 0);
|
|
|
|
ASSERT_COMPARE(export1, in_key->len,
|
|
export2, in_key->len);
|
|
}
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecp_keypair_free(&key);
|
|
mbedtls_ecp_keypair_free(&key2);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS:MBEDTLS_ECP_MONTGOMERY_ENABLED */
|
|
void genkey_mx_known_answer(int bits, data_t *seed, data_t *expected)
|
|
{
|
|
mbedtls_test_rnd_buf_info rnd_info;
|
|
mbedtls_mpi d;
|
|
int ret;
|
|
uint8_t *actual = NULL;
|
|
|
|
mbedtls_mpi_init(&d);
|
|
rnd_info.buf = seed->x;
|
|
rnd_info.length = seed->len;
|
|
rnd_info.fallback_f_rng = NULL;
|
|
rnd_info.fallback_p_rng = NULL;
|
|
|
|
ASSERT_ALLOC(actual, expected->len);
|
|
|
|
ret = mbedtls_ecp_gen_privkey_mx(bits, &d,
|
|
mbedtls_test_rnd_buffer_rand, &rnd_info);
|
|
|
|
if (expected->len == 0) {
|
|
/* Expecting an error (happens if there isn't enough randomness) */
|
|
TEST_ASSERT(ret != 0);
|
|
} else {
|
|
TEST_EQUAL(ret, 0);
|
|
TEST_EQUAL((size_t) bits + 1, mbedtls_mpi_bitlen(&d));
|
|
TEST_EQUAL(0, mbedtls_mpi_write_binary(&d, actual, expected->len));
|
|
/* Test the exact result. This assumes that the output of the
|
|
* RNG is used in a specific way, which is overly constraining.
|
|
* The advantage is that it's easier to test the expected properties
|
|
* of the generated key:
|
|
* - The most significant bit must be at a specific positions
|
|
* (can be enforced by checking the bit-length).
|
|
* - The least significant bits must have specific values
|
|
* (can be enforced by checking these bits).
|
|
* - Other bits must be random (by testing with different RNG outputs,
|
|
* we validate that those bits are indeed influenced by the RNG). */
|
|
ASSERT_COMPARE(expected->x, expected->len,
|
|
actual, expected->len);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_free(actual);
|
|
mbedtls_mpi_free(&d);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_set_zero(int id, data_t *P_bin)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_ecp_point pt, zero_pt, nonzero_pt;
|
|
|
|
mbedtls_ecp_group_init(&grp);
|
|
mbedtls_ecp_point_init(&pt);
|
|
mbedtls_ecp_point_init(&zero_pt);
|
|
mbedtls_ecp_point_init(&nonzero_pt);
|
|
|
|
// Set zero and non-zero points for comparison
|
|
TEST_EQUAL(mbedtls_ecp_set_zero(&zero_pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_group_load(&grp, id), 0);
|
|
TEST_EQUAL(mbedtls_ecp_point_read_binary(&grp, &nonzero_pt,
|
|
P_bin->x, P_bin->len), 0);
|
|
TEST_EQUAL(mbedtls_ecp_is_zero(&zero_pt), 1);
|
|
TEST_EQUAL(mbedtls_ecp_is_zero(&nonzero_pt), 0);
|
|
|
|
// Test initialized point
|
|
TEST_EQUAL(mbedtls_ecp_set_zero(&pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_is_zero(&pt), 1);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&zero_pt, &pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&nonzero_pt, &zero_pt),
|
|
MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
|
|
|
|
// Test zeroed point
|
|
TEST_EQUAL(mbedtls_ecp_set_zero(&pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_is_zero(&pt), 1);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&zero_pt, &pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&nonzero_pt, &pt),
|
|
MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
|
|
|
|
// Set point to non-zero value
|
|
TEST_EQUAL(mbedtls_ecp_point_read_binary(&grp, &pt,
|
|
P_bin->x, P_bin->len), 0);
|
|
TEST_EQUAL(mbedtls_ecp_is_zero(&pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&zero_pt, &pt),
|
|
MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&nonzero_pt, &pt), 0);
|
|
|
|
// Test non-zero point
|
|
TEST_EQUAL(mbedtls_ecp_set_zero(&pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_is_zero(&pt), 1);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&zero_pt, &pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&nonzero_pt, &pt),
|
|
MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
|
|
|
|
// Test freed non-zero point
|
|
TEST_EQUAL(mbedtls_ecp_point_read_binary(&grp, &pt,
|
|
P_bin->x, P_bin->len), 0);
|
|
mbedtls_ecp_point_free(&pt);
|
|
TEST_EQUAL(mbedtls_ecp_set_zero(&pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_is_zero(&pt), 1);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&zero_pt, &pt), 0);
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&nonzero_pt, &pt),
|
|
MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp);
|
|
mbedtls_ecp_point_free(&pt);
|
|
mbedtls_ecp_point_free(&zero_pt);
|
|
mbedtls_ecp_point_free(&nonzero_pt);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
|
|
void ecp_selftest()
|
|
{
|
|
TEST_ASSERT(mbedtls_ecp_self_test(1) == 0);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_export(int id, char *Qx, char *Qy, char *d, int expected_ret, int invalid_grp)
|
|
{
|
|
mbedtls_ecp_keypair key;
|
|
mbedtls_ecp_group export_grp;
|
|
mbedtls_mpi export_d;
|
|
mbedtls_ecp_point export_Q;
|
|
|
|
mbedtls_ecp_group_init(&export_grp);
|
|
mbedtls_ecp_group_init(&key.grp);
|
|
mbedtls_mpi_init(&export_d);
|
|
mbedtls_ecp_point_init(&export_Q);
|
|
|
|
mbedtls_ecp_keypair_init(&key);
|
|
if (invalid_grp == 0) {
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&key.grp, id) == 0);
|
|
}
|
|
TEST_ASSERT(mbedtls_ecp_point_read_string(&key.Q, 16, Qx, Qy) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&key.d, d) == 0);
|
|
|
|
TEST_EQUAL(mbedtls_ecp_export(&key, &export_grp,
|
|
&export_d, &export_Q), expected_ret);
|
|
|
|
if (expected_ret == 0) {
|
|
TEST_EQUAL(mbedtls_ecp_point_cmp(&key.Q, &export_Q), 0);
|
|
TEST_EQUAL(mbedtls_mpi_cmp_mpi(&key.d, &export_d), 0);
|
|
TEST_EQUAL(mbedtls_ecp_group_cmp(&key.grp, &export_grp), 0);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecp_keypair_free(&key);
|
|
mbedtls_ecp_group_free(&export_grp);
|
|
mbedtls_mpi_free(&export_d);
|
|
mbedtls_ecp_point_free(&export_Q);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecp_check_order(int id, char *expected_order_hex)
|
|
{
|
|
mbedtls_ecp_group grp;
|
|
mbedtls_mpi expected_n;
|
|
|
|
mbedtls_ecp_group_init(&grp);
|
|
mbedtls_mpi_init(&expected_n);
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&expected_n, expected_order_hex) == 0);
|
|
|
|
// check sign bits are well-formed (i.e. 1 or -1) - see #5810
|
|
TEST_ASSERT(grp.N.s == -1 || grp.N.s == 1);
|
|
TEST_ASSERT(expected_n.s == -1 || expected_n.s == 1);
|
|
|
|
TEST_ASSERT(mbedtls_mpi_cmp_mpi(&grp.N, &expected_n) == 0);
|
|
|
|
exit:
|
|
mbedtls_ecp_group_free(&grp);
|
|
mbedtls_mpi_free(&expected_n);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS */
|
|
void ecp_mod_p_generic_raw(int curve_id,
|
|
char *input_N,
|
|
char *input_X,
|
|
char *result)
|
|
{
|
|
mbedtls_mpi_uint *X = NULL;
|
|
mbedtls_mpi_uint *N = NULL;
|
|
mbedtls_mpi_uint *res = NULL;
|
|
size_t limbs_X;
|
|
size_t limbs_N;
|
|
size_t limbs_res;
|
|
|
|
size_t bytes;
|
|
size_t limbs;
|
|
size_t curve_bits;
|
|
int (*curve_func)(mbedtls_mpi_uint *X, size_t X_limbs);
|
|
|
|
mbedtls_mpi_mod_modulus m;
|
|
mbedtls_mpi_mod_modulus_init(&m);
|
|
|
|
TEST_EQUAL(mbedtls_test_read_mpi_core(&X, &limbs_X, input_X), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi_core(&N, &limbs_N, input_N), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi_core(&res, &limbs_res, result), 0);
|
|
bytes = limbs_N * sizeof(mbedtls_mpi_uint);
|
|
|
|
switch (curve_id) {
|
|
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
|
|
case MBEDTLS_ECP_DP_SECP192R1:
|
|
limbs = 2 * limbs_N;
|
|
curve_bits = 192;
|
|
curve_func = &mbedtls_ecp_mod_p192_raw;
|
|
break;
|
|
#endif
|
|
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
|
|
case MBEDTLS_ECP_DP_SECP224R1:
|
|
limbs = 448 / biL;
|
|
curve_bits = 224;
|
|
curve_func = &mbedtls_ecp_mod_p224_raw;
|
|
break;
|
|
#endif
|
|
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
|
|
case MBEDTLS_ECP_DP_SECP256R1:
|
|
limbs = 2 * limbs_N;
|
|
curve_bits = 256;
|
|
curve_func = &mbedtls_ecp_mod_p256_raw;
|
|
break;
|
|
#endif
|
|
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
|
|
case MBEDTLS_ECP_DP_SECP384R1:
|
|
limbs = 2 * limbs_N;
|
|
curve_bits = 384;
|
|
curve_func = &mbedtls_ecp_mod_p384_raw;
|
|
break;
|
|
#endif
|
|
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
|
|
case MBEDTLS_ECP_DP_SECP521R1:
|
|
limbs = 2 * limbs_N;
|
|
curve_bits = 522;
|
|
curve_func = &mbedtls_ecp_mod_p521_raw;
|
|
break;
|
|
#endif
|
|
default:
|
|
mbedtls_test_fail("Unsupported curve_id", __LINE__, __FILE__);
|
|
goto exit;
|
|
}
|
|
|
|
TEST_EQUAL(limbs_X, limbs);
|
|
TEST_EQUAL(limbs_res, limbs_N);
|
|
|
|
TEST_EQUAL(mbedtls_mpi_mod_modulus_setup(
|
|
&m, N, limbs_N,
|
|
MBEDTLS_MPI_MOD_REP_OPT_RED), 0);
|
|
|
|
TEST_EQUAL((*curve_func)(X, limbs_X), 0);
|
|
|
|
TEST_LE_U(mbedtls_mpi_core_bitlen(X, limbs_X), curve_bits);
|
|
mbedtls_mpi_mod_raw_fix_quasi_reduction(X, &m);
|
|
ASSERT_COMPARE(X, bytes, res, bytes);
|
|
|
|
exit:
|
|
mbedtls_free(X);
|
|
mbedtls_free(res);
|
|
|
|
mbedtls_mpi_mod_modulus_free(&m);
|
|
mbedtls_free(N);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS:MBEDTLS_ECP_DP_SECP192K1_ENABLED */
|
|
void ecp_mod_p192k1(char *input_N,
|
|
char *input_X,
|
|
char *result)
|
|
{
|
|
mbedtls_mpi X;
|
|
mbedtls_mpi N;
|
|
mbedtls_mpi res;
|
|
|
|
mbedtls_mpi_init(&X);
|
|
mbedtls_mpi_init(&N);
|
|
mbedtls_mpi_init(&res);
|
|
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&X, input_X), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&N, input_N), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&res, result), 0);
|
|
|
|
TEST_ASSERT(mbedtls_mpi_core_uint_le_mpi(0, X.p, X.n));
|
|
TEST_ASSERT(mbedtls_mpi_core_uint_le_mpi(0, N.p, N.n));
|
|
TEST_ASSERT(mbedtls_mpi_core_uint_le_mpi(0, res.p, res.n));
|
|
|
|
size_t limbs = N.n;
|
|
size_t bytes = limbs * sizeof(mbedtls_mpi_uint);
|
|
|
|
TEST_EQUAL(X.n, 2 * limbs);
|
|
TEST_EQUAL(res.n, limbs);
|
|
|
|
TEST_EQUAL(mbedtls_ecp_mod_p192k1(&X), 0);
|
|
TEST_EQUAL(mbedtls_mpi_mod_mpi(&X, &X, &N), 0);
|
|
TEST_LE_U(mbedtls_mpi_core_bitlen(X.p, X.n), 192);
|
|
ASSERT_COMPARE(X.p, bytes, res.p, bytes);
|
|
|
|
exit:
|
|
mbedtls_mpi_free(&X);
|
|
mbedtls_mpi_free(&N);
|
|
mbedtls_mpi_free(&res);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS */
|
|
void ecp_mod_setup(char *input_A, int id, int ctype, int iret)
|
|
{
|
|
int ret;
|
|
mbedtls_mpi_mod_modulus m;
|
|
mbedtls_mpi_mod_modulus_init(&m);
|
|
mbedtls_mpi_uint *p = NULL;
|
|
size_t p_limbs;
|
|
size_t bytes;
|
|
|
|
TEST_EQUAL(mbedtls_test_read_mpi_core(&p, &p_limbs, input_A), 0);
|
|
|
|
ret = mbedtls_ecp_modulus_setup(&m, id, ctype);
|
|
TEST_EQUAL(ret, iret);
|
|
|
|
if (ret == 0) {
|
|
|
|
/* Test for limb sizes */
|
|
TEST_EQUAL(m.limbs, p_limbs);
|
|
bytes = p_limbs * sizeof(mbedtls_mpi_uint);
|
|
|
|
/* Test for validity of moduli by the presence of Montgomery consts */
|
|
|
|
TEST_ASSERT(m.rep.mont.mm != 0);
|
|
TEST_ASSERT(m.rep.mont.rr != NULL);
|
|
|
|
|
|
/* Compare output byte-by-byte */
|
|
ASSERT_COMPARE(p, bytes, m.p, bytes);
|
|
|
|
/* Test for user free-ing allocated memory */
|
|
mbedtls_mpi_mod_modulus_free(&m);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_mpi_mod_modulus_free(&m);
|
|
mbedtls_free(p);
|
|
}
|
|
/* END_CASE */
|