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/* BEGIN_HEADER */
#include <test/helpers.h>
#include <mbedtls/psa_util.h>
/* END_HEADER */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_UTIL_HAVE_ECDSA */
void ecdsa_raw_to_der(int key_bits, data_t *input, data_t *exp_result, int exp_ret)
{
unsigned char *tmp_buf = NULL;
size_t tmp_buf_len = exp_result->len;
size_t ret_len;
TEST_CALLOC(tmp_buf, tmp_buf_len);
TEST_EQUAL(mbedtls_ecdsa_raw_to_der(key_bits, input->x, input->len,
tmp_buf, tmp_buf_len, &ret_len), exp_ret);
if (exp_ret == 0) {
ASSERT_COMPARE(exp_result->x, exp_result->len, tmp_buf, ret_len);
}
exit:
mbedtls_free(tmp_buf);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_UTIL_HAVE_ECDSA */
void ecdsa_raw_to_der_incremental(int key_bits, data_t *input, data_t *exp_result)
{
unsigned char *tmp_buf = NULL;
size_t ret_len;
size_t i;
/* Test with an output buffer smaller than required (expexted to fail). */
for (i = 1; i < exp_result->len; i++) {
TEST_CALLOC(tmp_buf, i);
TEST_ASSERT(mbedtls_ecdsa_raw_to_der(key_bits, input->x, input->len,
tmp_buf, i, &ret_len) != 0);
mbedtls_free(tmp_buf);
tmp_buf = NULL;
}
/* Test with an output buffer larger/equal than required (expexted to
* succeed). */
for (i = exp_result->len; i < (2 * exp_result->len); i++) {
TEST_CALLOC(tmp_buf, i);
TEST_ASSERT(mbedtls_ecdsa_raw_to_der(key_bits, input->x, input->len,
tmp_buf, i, &ret_len) == 0);
mbedtls_free(tmp_buf);
tmp_buf = NULL;
}
exit:
mbedtls_free(tmp_buf);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_UTIL_HAVE_ECDSA */
void ecdsa_der_to_raw(int key_bits, data_t *input, data_t *exp_result, int exp_ret)
{
unsigned char *in_buf = NULL;
size_t in_buf_len;
unsigned char *out_buf = NULL;
size_t out_buf_len = exp_result->len;
size_t ret_len;
TEST_CALLOC(out_buf, out_buf_len);
/* Verify that parsing of truncated input always fails. */
for (in_buf_len = 1; in_buf_len < input->len; in_buf_len++) {
/* We alloc a copy of input buffer with limited length so that sanitizers
* can detect overreads. */
TEST_CALLOC(in_buf, in_buf_len);
memcpy(in_buf, input->x, in_buf_len);
TEST_ASSERT(mbedtls_ecdsa_der_to_raw(key_bits, in_buf, in_buf_len,
out_buf, out_buf_len, &ret_len) != 0);
mbedtls_free(in_buf);
in_buf = NULL;
}
TEST_EQUAL(mbedtls_ecdsa_der_to_raw(key_bits, input->x, input->len,
out_buf, out_buf_len, &ret_len), exp_ret);
if (exp_ret == 0) {
ASSERT_COMPARE(exp_result->x, exp_result->len, out_buf, ret_len);
}
exit:
mbedtls_free(in_buf);
mbedtls_free(out_buf);
}
/* END_CASE */
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