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Add full round-trip tests for buffer copying

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Test that a buffer pair can be created with psa_crypto_alloc_and_copy()
and destroyed with psa_crypto_copy_and_free() correctly.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann 2023-11-02 17:07:16 +00:00
parent 406d28ba87
commit 5e0b4f8b42
2 changed files with 47 additions and 0 deletions
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3
tests/suites/test_suite_psa_crypto.data
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@ -4107,3 +4107,6 @@ psa_crypto_copy_and_free:0:0:0:20:0:PSA_ERROR_INVALID_ARGUMENT
PSA buffers copy and free, zero-length output PSA buffers copy and free, zero-length output
psa_crypto_copy_and_free:20:0:0:0:0:PSA_ERROR_INVALID_ARGUMENT psa_crypto_copy_and_free:20:0:0:0:0:PSA_ERROR_INVALID_ARGUMENT
PSA buffers round-trip
psa_crypto_buffer_copy_round_trip

44
tests/suites/test_suite_psa_crypto.function
View File

@ -5956,3 +5956,47 @@ exit:
mbedtls_free(orig_output); mbedtls_free(orig_output);
} }
/* END_CASE */ /* END_CASE */
/* BEGIN_CASE */
void psa_crypto_buffer_copy_round_trip()
{
uint8_t data[] = {0x12, 0x34, 0x56, 0x78};
uint8_t input[100];
uint8_t output[100];
uint8_t output_for_comparison[100];
psa_crypto_buffer_copy_t buffer_copies = { 0 };
psa_status_t ret;
for (size_t i = 0; i < sizeof(input); i++) {
input[i] = data[i % sizeof(data)];
}
ret = psa_crypto_alloc_and_copy(input, sizeof(input),
output, sizeof(output),
&buffer_copies);
TEST_ASSERT(ret == PSA_SUCCESS);
TEST_MEMORY_COMPARE(input, sizeof(input),
buffer_copies.input, buffer_copies.input_len);
TEST_EQUAL(sizeof(output), buffer_copies.output_len);
/* Simulate the PSA function filling the (internal) output buffer. */
for (size_t i = 0; i < buffer_copies.output_len; i++) {
buffer_copies.output[i] = data[i % sizeof(data)];
}
/* Make a copy of output to compare the copy-back */
memcpy(output_for_comparison, buffer_copies.output,
sizeof(output_for_comparison));
ret = psa_crypto_copy_and_free(&buffer_copies);
TEST_EQUAL(ret, PSA_SUCCESS);
/* Check that the output was copied back correctly. */
TEST_MEMORY_COMPARE(output_for_comparison, sizeof(output_for_comparison),
output, sizeof(output));
exit:
mbedtls_free(buffer_copies.input);
mbedtls_free(buffer_copies.output);
}
/* END_CASE */