524 lines
20 KiB
C
524 lines
20 KiB
C
/* BEGIN_HEADER */
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#include "mbedtls/ecdsa.h"
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#include "hash_info.h"
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#include "mbedtls/legacy_or_psa.h"
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#if (defined(MBEDTLS_ECDSA_DETERMINISTIC) && defined(MBEDTLS_SHA256_C)) || \
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(!defined(MBEDTLS_ECDSA_DETERMINISTIC) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA))
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#define MBEDTLS_HAS_ALG_SHA_256_VIA_MD_IF_DETERMINISTIC
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#endif
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_ECDSA_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE */
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void ecdsa_prim_zero(int id)
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{
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mbedtls_ecp_group grp;
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mbedtls_ecp_point Q;
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mbedtls_mpi d, r, s;
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mbedtls_test_rnd_pseudo_info rnd_info;
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unsigned char buf[MBEDTLS_HASH_MAX_SIZE];
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mbedtls_ecp_group_init(&grp);
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mbedtls_ecp_point_init(&Q);
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mbedtls_mpi_init(&d); mbedtls_mpi_init(&r); mbedtls_mpi_init(&s);
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memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
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memset(buf, 0, sizeof(buf));
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
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TEST_ASSERT(mbedtls_ecp_gen_keypair(&grp, &d, &Q,
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&mbedtls_test_rnd_pseudo_rand,
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&rnd_info) == 0);
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TEST_ASSERT(mbedtls_ecdsa_sign(&grp, &r, &s, &d, buf, sizeof(buf),
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&mbedtls_test_rnd_pseudo_rand,
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&rnd_info) == 0);
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TEST_ASSERT(mbedtls_ecdsa_verify(&grp, buf, sizeof(buf), &Q, &r, &s) == 0);
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exit:
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mbedtls_ecp_group_free(&grp);
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mbedtls_ecp_point_free(&Q);
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mbedtls_mpi_free(&d); mbedtls_mpi_free(&r); mbedtls_mpi_free(&s);
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void ecdsa_prim_random(int id)
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{
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mbedtls_ecp_group grp;
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mbedtls_ecp_point Q;
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mbedtls_mpi d, r, s;
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mbedtls_test_rnd_pseudo_info rnd_info;
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unsigned char buf[MBEDTLS_HASH_MAX_SIZE];
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mbedtls_ecp_group_init(&grp);
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mbedtls_ecp_point_init(&Q);
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mbedtls_mpi_init(&d); mbedtls_mpi_init(&r); mbedtls_mpi_init(&s);
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memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
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memset(buf, 0, sizeof(buf));
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/* prepare material for signature */
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TEST_ASSERT(mbedtls_test_rnd_pseudo_rand(&rnd_info,
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buf, sizeof(buf)) == 0);
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
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TEST_ASSERT(mbedtls_ecp_gen_keypair(&grp, &d, &Q,
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&mbedtls_test_rnd_pseudo_rand,
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&rnd_info) == 0);
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TEST_ASSERT(mbedtls_ecdsa_sign(&grp, &r, &s, &d, buf, sizeof(buf),
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&mbedtls_test_rnd_pseudo_rand,
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&rnd_info) == 0);
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TEST_ASSERT(mbedtls_ecdsa_verify(&grp, buf, sizeof(buf), &Q, &r, &s) == 0);
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exit:
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mbedtls_ecp_group_free(&grp);
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mbedtls_ecp_point_free(&Q);
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mbedtls_mpi_free(&d); mbedtls_mpi_free(&r); mbedtls_mpi_free(&s);
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void ecdsa_prim_test_vectors(int id, char *d_str, char *xQ_str,
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char *yQ_str, data_t *rnd_buf,
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data_t *hash, char *r_str, char *s_str,
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int result)
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{
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mbedtls_ecp_group grp;
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mbedtls_ecp_point Q;
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mbedtls_mpi d, r, s, r_check, s_check, zero;
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mbedtls_test_rnd_buf_info rnd_info;
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mbedtls_ecp_group_init(&grp);
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mbedtls_ecp_point_init(&Q);
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mbedtls_mpi_init(&d); mbedtls_mpi_init(&r); mbedtls_mpi_init(&s);
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mbedtls_mpi_init(&r_check); mbedtls_mpi_init(&s_check);
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mbedtls_mpi_init(&zero);
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
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TEST_ASSERT(mbedtls_ecp_point_read_string(&Q, 16, xQ_str, yQ_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&d, d_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&r_check, r_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&s_check, s_str) == 0);
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rnd_info.fallback_f_rng = mbedtls_test_rnd_std_rand;
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rnd_info.fallback_p_rng = NULL;
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rnd_info.buf = rnd_buf->x;
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rnd_info.length = rnd_buf->len;
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/* Fix rnd_buf->x by shifting it left if necessary */
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if (grp.nbits % 8 != 0) {
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unsigned char shift = 8 - (grp.nbits % 8);
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size_t i;
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for (i = 0; i < rnd_info.length - 1; i++) {
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rnd_buf->x[i] = rnd_buf->x[i] << shift | rnd_buf->x[i+1] >> (8 - shift);
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}
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rnd_buf->x[rnd_info.length-1] <<= shift;
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}
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TEST_ASSERT(mbedtls_ecdsa_sign(&grp, &r, &s, &d, hash->x, hash->len,
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mbedtls_test_rnd_buffer_rand, &rnd_info) == result);
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if (result == 0) {
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/* Check we generated the expected values */
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TEST_EQUAL(mbedtls_mpi_cmp_mpi(&r, &r_check), 0);
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TEST_EQUAL(mbedtls_mpi_cmp_mpi(&s, &s_check), 0);
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/* Valid signature */
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len,
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&Q, &r_check, &s_check), 0);
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/* Invalid signature: wrong public key (G instead of Q) */
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len,
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&grp.G, &r_check, &s_check), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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/* Invalid signatures: r or s or both one off */
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TEST_EQUAL(mbedtls_mpi_sub_int(&r, &r_check, 1), 0);
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TEST_EQUAL(mbedtls_mpi_add_int(&s, &s_check, 1), 0);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r, &s_check), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r_check, &s), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r, &s), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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/* Invalid signatures: r, s or both (CVE-2022-21449) are zero */
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TEST_EQUAL(mbedtls_mpi_lset(&zero, 0), 0);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&zero, &s_check), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r_check, &zero), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&zero, &zero), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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/* Invalid signatures: r, s or both are == N */
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&grp.N, &s_check), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r_check, &grp.N), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&grp.N, &grp.N), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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/* Invalid signatures: r, s or both are negative */
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TEST_EQUAL(mbedtls_mpi_sub_mpi(&r, &r_check, &grp.N), 0);
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TEST_EQUAL(mbedtls_mpi_sub_mpi(&s, &s_check, &grp.N), 0);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r, &s_check), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r_check, &s), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r, &s), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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/* Invalid signatures: r or s or both are > N */
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TEST_EQUAL(mbedtls_mpi_add_mpi(&r, &r_check, &grp.N), 0);
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TEST_EQUAL(mbedtls_mpi_add_mpi(&s, &s_check, &grp.N), 0);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r, &s_check), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r_check, &s), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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TEST_EQUAL(mbedtls_ecdsa_verify(&grp, hash->x, hash->len, &Q,
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&r, &s), MBEDTLS_ERR_ECP_VERIFY_FAILED);
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}
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exit:
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mbedtls_ecp_group_free(&grp);
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mbedtls_ecp_point_free(&Q);
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mbedtls_mpi_free(&d); mbedtls_mpi_free(&r); mbedtls_mpi_free(&s);
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mbedtls_mpi_free(&r_check); mbedtls_mpi_free(&s_check);
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mbedtls_mpi_free(&zero);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_ECDSA_DETERMINISTIC */
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void ecdsa_det_test_vectors(int id, char *d_str, int md_alg, data_t *hash,
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char *r_str, char *s_str)
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{
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mbedtls_ecp_group grp;
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mbedtls_mpi d, r, s, r_check, s_check;
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mbedtls_ecp_group_init(&grp);
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mbedtls_mpi_init(&d); mbedtls_mpi_init(&r); mbedtls_mpi_init(&s);
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mbedtls_mpi_init(&r_check); mbedtls_mpi_init(&s_check);
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TEST_ASSERT(mbedtls_ecp_group_load(&grp, id) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&d, d_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&r_check, r_str) == 0);
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TEST_ASSERT(mbedtls_test_read_mpi(&s_check, s_str) == 0);
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TEST_ASSERT(
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mbedtls_ecdsa_sign_det_ext(&grp, &r, &s, &d,
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hash->x, hash->len, md_alg,
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mbedtls_test_rnd_std_rand,
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NULL)
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== 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&r, &r_check) == 0);
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TEST_ASSERT(mbedtls_mpi_cmp_mpi(&s, &s_check) == 0);
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exit:
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mbedtls_ecp_group_free(&grp);
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mbedtls_mpi_free(&d); mbedtls_mpi_free(&r); mbedtls_mpi_free(&s);
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mbedtls_mpi_free(&r_check); mbedtls_mpi_free(&s_check);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_HAS_ALG_SHA_256_VIA_MD_IF_DETERMINISTIC */
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void ecdsa_write_read_zero(int id)
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{
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mbedtls_ecdsa_context ctx;
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mbedtls_test_rnd_pseudo_info rnd_info;
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unsigned char hash[32];
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unsigned char sig[200];
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size_t sig_len, i;
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mbedtls_ecdsa_init(&ctx);
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memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
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memset(hash, 0, sizeof(hash));
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memset(sig, 0x2a, sizeof(sig));
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/* generate signing key */
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TEST_ASSERT(mbedtls_ecdsa_genkey(&ctx, id,
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&mbedtls_test_rnd_pseudo_rand,
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&rnd_info) == 0);
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/* generate and write signature, then read and verify it */
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TEST_ASSERT(mbedtls_ecdsa_write_signature(&ctx, MBEDTLS_MD_SHA256,
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hash, sizeof(hash),
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sig, sizeof(sig), &sig_len,
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&mbedtls_test_rnd_pseudo_rand,
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&rnd_info) == 0);
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len) == 0);
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/* check we didn't write past the announced length */
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for (i = sig_len; i < sizeof(sig); i++) {
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TEST_ASSERT(sig[i] == 0x2a);
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}
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/* try verification with invalid length */
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len - 1) != 0);
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len + 1) != 0);
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/* try invalid sequence tag */
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sig[0]++;
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len) != 0);
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sig[0]--;
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/* try modifying r */
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sig[10]++;
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len) == MBEDTLS_ERR_ECP_VERIFY_FAILED);
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sig[10]--;
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/* try modifying s */
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sig[sig_len - 1]++;
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len) == MBEDTLS_ERR_ECP_VERIFY_FAILED);
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sig[sig_len - 1]--;
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exit:
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mbedtls_ecdsa_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_HAS_ALG_SHA_256_VIA_MD_IF_DETERMINISTIC */
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void ecdsa_write_read_random(int id)
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{
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mbedtls_ecdsa_context ctx;
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mbedtls_test_rnd_pseudo_info rnd_info;
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unsigned char hash[32];
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unsigned char sig[200];
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size_t sig_len, i;
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mbedtls_ecdsa_init(&ctx);
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memset(&rnd_info, 0x00, sizeof(mbedtls_test_rnd_pseudo_info));
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memset(hash, 0, sizeof(hash));
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memset(sig, 0x2a, sizeof(sig));
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/* prepare material for signature */
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TEST_ASSERT(mbedtls_test_rnd_pseudo_rand(&rnd_info,
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hash, sizeof(hash)) == 0);
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/* generate signing key */
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TEST_ASSERT(mbedtls_ecdsa_genkey(&ctx, id,
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&mbedtls_test_rnd_pseudo_rand,
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&rnd_info) == 0);
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/* generate and write signature, then read and verify it */
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TEST_ASSERT(mbedtls_ecdsa_write_signature(&ctx, MBEDTLS_MD_SHA256,
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hash, sizeof(hash),
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sig, sizeof(sig), &sig_len,
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&mbedtls_test_rnd_pseudo_rand,
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&rnd_info) == 0);
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len) == 0);
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/* check we didn't write past the announced length */
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for (i = sig_len; i < sizeof(sig); i++) {
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TEST_ASSERT(sig[i] == 0x2a);
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}
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/* try verification with invalid length */
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len - 1) != 0);
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len + 1) != 0);
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/* try invalid sequence tag */
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sig[0]++;
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len) != 0);
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sig[0]--;
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/* try modifying r */
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sig[10]++;
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len) == MBEDTLS_ERR_ECP_VERIFY_FAILED);
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sig[10]--;
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/* try modifying s */
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sig[sig_len - 1]++;
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TEST_ASSERT(mbedtls_ecdsa_read_signature(&ctx, hash, sizeof(hash),
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sig, sig_len) == MBEDTLS_ERR_ECP_VERIFY_FAILED);
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sig[sig_len - 1]--;
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exit:
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mbedtls_ecdsa_free(&ctx);
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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 ecdsa_read_restart(int id, data_t *pk, data_t *hash, data_t *sig,
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int max_ops, int min_restart, int max_restart)
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{
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mbedtls_ecdsa_context ctx;
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mbedtls_ecdsa_restart_ctx rs_ctx;
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int ret, cnt_restart;
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mbedtls_ecdsa_init(&ctx);
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mbedtls_ecdsa_restart_init(&rs_ctx);
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TEST_ASSERT(mbedtls_ecp_group_load(&ctx.grp, id) == 0);
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TEST_ASSERT(mbedtls_ecp_point_read_binary(&ctx.grp, &ctx.Q,
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pk->x, pk->len) == 0);
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mbedtls_ecp_set_max_ops(max_ops);
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cnt_restart = 0;
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do {
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ret = mbedtls_ecdsa_read_signature_restartable(&ctx,
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hash->x, hash->len, sig->x, sig->len,
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&rs_ctx);
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} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart);
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TEST_ASSERT(ret == 0);
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TEST_ASSERT(cnt_restart >= min_restart);
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TEST_ASSERT(cnt_restart <= max_restart);
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/* try modifying r */
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TEST_ASSERT(sig->len > 10);
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sig->x[10]++;
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do {
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ret = mbedtls_ecdsa_read_signature_restartable(&ctx,
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hash->x, hash->len, sig->x, sig->len,
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&rs_ctx);
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} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
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TEST_ASSERT(ret == MBEDTLS_ERR_ECP_VERIFY_FAILED);
|
|
sig->x[10]--;
|
|
|
|
/* try modifying s */
|
|
sig->x[sig->len - 1]++;
|
|
do {
|
|
ret = mbedtls_ecdsa_read_signature_restartable(&ctx,
|
|
hash->x, hash->len, sig->x, sig->len,
|
|
&rs_ctx);
|
|
} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
|
|
TEST_ASSERT(ret == MBEDTLS_ERR_ECP_VERIFY_FAILED);
|
|
sig->x[sig->len - 1]--;
|
|
|
|
/* Do we leak memory when aborting an operation?
|
|
* This test only makes sense when we actually restart */
|
|
if (min_restart > 0) {
|
|
ret = mbedtls_ecdsa_read_signature_restartable(&ctx,
|
|
hash->x, hash->len, sig->x, sig->len,
|
|
&rs_ctx);
|
|
TEST_ASSERT(ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecdsa_free(&ctx);
|
|
mbedtls_ecdsa_restart_free(&rs_ctx);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_ECP_RESTARTABLE:MBEDTLS_ECDSA_DETERMINISTIC */
|
|
void ecdsa_write_restart(int id, char *d_str, int md_alg,
|
|
data_t *hash, data_t *sig_check,
|
|
int max_ops, int min_restart, int max_restart)
|
|
{
|
|
int ret, cnt_restart;
|
|
mbedtls_ecdsa_restart_ctx rs_ctx;
|
|
mbedtls_ecdsa_context ctx;
|
|
unsigned char sig[MBEDTLS_ECDSA_MAX_LEN];
|
|
size_t slen;
|
|
|
|
mbedtls_ecdsa_restart_init(&rs_ctx);
|
|
mbedtls_ecdsa_init(&ctx);
|
|
memset(sig, 0, sizeof(sig));
|
|
|
|
TEST_ASSERT(mbedtls_ecp_group_load(&ctx.grp, id) == 0);
|
|
TEST_ASSERT(mbedtls_test_read_mpi(&ctx.d, d_str) == 0);
|
|
|
|
mbedtls_ecp_set_max_ops(max_ops);
|
|
|
|
slen = sizeof(sig);
|
|
cnt_restart = 0;
|
|
do {
|
|
ret = mbedtls_ecdsa_write_signature_restartable(&ctx,
|
|
md_alg,
|
|
hash->x,
|
|
hash->len,
|
|
sig,
|
|
sizeof(sig),
|
|
&slen,
|
|
mbedtls_test_rnd_std_rand,
|
|
NULL,
|
|
&rs_ctx);
|
|
} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart);
|
|
|
|
TEST_ASSERT(ret == 0);
|
|
TEST_ASSERT(slen == sig_check->len);
|
|
TEST_ASSERT(memcmp(sig, sig_check->x, slen) == 0);
|
|
|
|
TEST_ASSERT(cnt_restart >= min_restart);
|
|
TEST_ASSERT(cnt_restart <= max_restart);
|
|
|
|
/* Do we leak memory when aborting an operation?
|
|
* This test only makes sense when we actually restart */
|
|
if (min_restart > 0) {
|
|
ret = mbedtls_ecdsa_write_signature_restartable(&ctx,
|
|
md_alg,
|
|
hash->x,
|
|
hash->len,
|
|
sig,
|
|
sizeof(sig),
|
|
&slen,
|
|
mbedtls_test_rnd_std_rand,
|
|
NULL,
|
|
&rs_ctx);
|
|
TEST_ASSERT(ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
|
|
}
|
|
|
|
exit:
|
|
mbedtls_ecdsa_restart_free(&rs_ctx);
|
|
mbedtls_ecdsa_free(&ctx);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void ecdsa_verify(int grp_id, char *x, char *y, char *r, char *s, data_t *content, int expected)
|
|
{
|
|
mbedtls_ecdsa_context ctx;
|
|
mbedtls_mpi sig_r, sig_s;
|
|
|
|
mbedtls_ecdsa_init(&ctx);
|
|
mbedtls_mpi_init(&sig_r);
|
|
mbedtls_mpi_init(&sig_s);
|
|
|
|
/* Prepare ECP group context */
|
|
TEST_EQUAL(mbedtls_ecp_group_load(&ctx.grp, grp_id), 0);
|
|
|
|
/* Prepare public key */
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&ctx.Q.X, x), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&ctx.Q.Y, y), 0);
|
|
TEST_EQUAL(mbedtls_mpi_lset(&ctx.Q.Z, 1), 0);
|
|
|
|
/* Prepare signature R & S */
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&sig_r, r), 0);
|
|
TEST_EQUAL(mbedtls_test_read_mpi(&sig_s, s), 0);
|
|
|
|
/* Test whether public key has expected validity */
|
|
TEST_EQUAL(mbedtls_ecp_check_pubkey(&ctx.grp, &ctx.Q),
|
|
expected == MBEDTLS_ERR_ECP_INVALID_KEY ? MBEDTLS_ERR_ECP_INVALID_KEY : 0);
|
|
|
|
/* Verification */
|
|
int result = mbedtls_ecdsa_verify(&ctx.grp, content->x, content->len, &ctx.Q, &sig_r, &sig_s);
|
|
|
|
TEST_EQUAL(result, expected);
|
|
exit:
|
|
mbedtls_ecdsa_free(&ctx);
|
|
mbedtls_mpi_free(&sig_r);
|
|
mbedtls_mpi_free(&sig_s);
|
|
}
|
|
/* END_CASE */
|