To start with, test that key creation fails as intended when the key
type is not supported. This commit only covers psa_import_key and
psa_generate_key. A follow-up will cover psa_key_derivation_output_key.
My primary intent in creating this new test suite is to automatically
generate test cases by enumerating the key types and algorithms that
the library supports. But this commit only adds a few manually written
test cases, to get the ball rolling.
Move the relevant test cases of test_suite_psa_crypto.data that only
depend on generic knowledge about the API. Keep test cases that depend
more closely on the implementation, such as tests of non-supported key
sizes, in test_suite_psa_crypto.data.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Now that the support for key generation in the transparent
test driver is at the same level as the support in the
Mbed TLS library, remove the restriction on the generate
key test case that was introduced by the work on key
import and export through the PSA driver interface.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Add a test in test_suite_psa_crypto_driver_wrappers that
when accelerators do not support the generation of a key
and there is no software fallback, the key generation
fails with the PSA_ERROR_NOT_SUPPORTED error code.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This brings them in line with PSA Crypto API 1.0.0
PSA_ALG_AEAD_WITH_DEFAULT_TAG_LENGTH -> PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG
PSA_ALG_AEAD_WITH_TAG_LENGTH -> PSA_ALG_AEAD_WITH_SHORTENED_TAG
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Add macros to skip a test case when hitting a
common alternative implementation limitation.
Add a macro for AES-192 and GCM with a nonce
length different from 12 bytes.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Make sure MBEDTLS_PSA_CRYPTO_CLIENT is defined
when MBEDTLS_PSA_CRYPTO_C is defined and guard
PSA client code only with MBEDTLS_PSA_CRYPTO_CLIENT.
The definition of MBEDTLS_PSA_CRYPTO_CLIENT is done
in crypto_types.h before the definition of
psa_key_attributes_t. That way as PSA crypto client
code is related to key attributes we can be quite
confident that MBEDTLS_PSA_CRYPTO_CLIENT will be
defined when needed.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Move test macros previously located in `suites/helpers.function` to
`include/test/macros.h`. This makes these test infrastructure macros
available for use in other parts of the test infrastructure at compile
time as opposed to run time.
This commit is a simple cut and paste from one file to the other.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
The test function generate_random allocated a few extra bytes after
the expected output and checked that these extra bytes were not
overwritten. Memory sanity checks such as AddressSanitizer and
Valgrind already detect this kind of buffer overflow, so having this
test in our code was actually redundant. Remove it.
This has the benefit of not triggering a build error with GCC
(observed with 7.5.0 and 9.3.0) when ASan+UBSan is enabled: with the
previous code using trail, GCC complained about an excessively large
value passed to calloc(), which was (size_t)(-sizeof(trail)).
Thus this commit fixes#4122.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Attempting to create an ECC key with a curve specification that is not
valid can plausibly fail with PSA_ERROR_INVALID_ARGUMENT ("this is not
a curve specification at all") or PSA_ERROR_NOT_SUPPORTED ("this may
be a curve specification, but not one I support"). The choice of error
is somewhat subjective.
Before this commit, due to happenstance in the implementation, an
attempt to use a curve that is declared in the PSA API but not
implemented in Mbed TLS returned PSA_ERROR_INVALID_ARGUMENT, whereas
an attempt to use a curve that Mbed TLS supports but for which support
was disabled at compile-time returned PSA_ERROR_NOT_SUPPORTED. This
inconsistency made it difficult to write negative tests that could
work whether the curve is implemented via Mbed TLS code or via a
driver.
After this commit, any attempt to use parameters that are not
recognized fails with NOT_SUPPORTED, whether a curve with the
specified size might plausibly exist or not, because "might plausibly
exist" is not something Mbed TLS can determine.
To keep returning INVALID_ARGUMENT when importing an ECC key with an
explicit "bits" attribute that is inconsistent with the size of the
key material, this commit changes the way mbedtls_ecc_group_of_psa()
works: it now works on a size in bits rather than bytes, with an extra
flag indicating whether the bit-size must be exact or not.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Both tests do not require a lot of RAM, even though it may seem
like it at first sight. The derivation output is generated blockwise
from the KDF function, which only keeps state amounting to a couple
of blocks of the underlying hash primitive at a time.
There is never an allocation to keep the full derivation capacity in
memory...
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Add doxygen style documentation to `mbedtls_test_fail`, `mbedtls_test_skip`,
`mbedtls_test_set_step` and `mbedtls_test_info_reset`. This should make it
easier to understand how the test infrastructure is used.
Also make some minor style changes to meet the coding standards and make it
more obvious that `mbedtls_test_info.step` was being incremented.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Add a new function `mbedtls_test_info_reset()` to remove direct writes to
`mbedtls_test_info`. This change still allows values to be read directly
however all writes are now done inside of `helpers.c`.
Also slightly reordered code to make it easier to read.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Fix some export related tests that were
relying on the fact that the size of the
output buffer was checked after other
parameters.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
The compilation guards in key_management.c are now
accelerator compilation guards (MBEDTLS_PSA_ACCEL_KEY_TYPE_xyz).
As a consequence when running the PSA driver wrapper
tests as part of test_psa_crypto_config_basic
and test_psa_crypto_drivers all.sh components all
key management cryptographic operations were handled by
the software builtin fallback, and not by the test driver
as intended in the first place.
This commits fixes this issue by:
. declaring an accelerator for ECC key pairs in
test_psa_crypto_config_basic.
. declaring an accelerator for both ECC and RSA
key pairs in test_psa_crypto_drivers.
It is possible to declare an accelerator for both
ECC and RSA key pairs in test_psa_crypto_drivers
and not in test_psa_crypto_config_basic because
in the case of test_psa_crypto_drivers the new
PSA configuration is not activated. That way,
the builtin fallback software implementation
is present to supply the transparent test driver
when some support is missing in it (mainly
RSA key generation).
Note that the declaration of accelerators does
much more than just "fixing" the execution flow of
driver wrapper tests, it makes all import and public
key export cryptographic operations in all unit
tests being handled by the transparent test driver
(provided that it supports the key type).
One test case related to key generation is
partially disabled. This will be fixed with the
rework of psa_generate_key along the lines
described in psa-crypto-implementation-structure.md.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
In test_suite_psa_crypto_driver_wrappers test suite, the
generate key with software fallback test should be run
only if the software fallback is available.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Add test cases for mbedtls_mpi_sub_abs() where the second operand has
more limbs than the first operand (which, if the extra limbs are not
all zero, implies that the function returns
MBEDTLS_ERR_MPI_NEGATIVE_VALUE).
This exposes a buffer overflow (reported in #4042).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Storage format tests that only look at how the file is structured and
don't care about the format of the key material don't depend on any
cryptographic mechanisms.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The negative test cases for psa_copy_key() don't actually care whether
the target policy is supported. This is similar to _key_policy tests.
Add a similar rule.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The test function asymmetric_signature_key_policy combines positive
and negative tests inside the code, so it doesn't take a status as its
last argument.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Switch dependencies on MBEDTLS_xxx to PSA_WANT_xxx for hash
algorithms.
Add a missing dependency in bad_order functions (it was previously
expressed in the .data file, but this is no longer the case when
dependencies in the .data file are determined automatically).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Replace manually written dependencies on MBEDTLS_xxx with
PSA_WANT_xxx dependencies that are determined automatically from the
test data.
Run tests/scripts/set_psa_test_dependencies.py on
tests/suites/test_suite_psa_crypto*.data,
except for the dynamic secure element tests in
tests/suites/test_suite_psa_crypto_se_driver_hal*.data.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
When using the test function persistent_key_load_key_from_storage with
DERIVE_KEY, there's a dependency on HKDF-SHA-256. Since this
dependency is in the code, declare it there rather than with the data.
If the depenency is not met, mark the test as skipped since it can't
create the key to be tested.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Move PSA key attributes tests to their own
test suite to be able to run them when
MBEDTLS_PSA_CRYPTO_CLIENT is enabled but
not MBEDTLS_PSA_CRYPTO_C.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
