Commit Graph

2899 Commits

Author SHA1 Message Date
Steven Cooreman
f9f7fdfe49 Rework MAC algorithm / key type validation
Reworked the validation of MAC algorithm with the used key type by
introducing psa_mac_key_can_do, which guarantees that PSA_MAC_LENGTH can
be called successfully after validation of the algorithm and key type.

This means psa_get_mac_output_length is no longer required.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-03 19:58:02 +01:00
Steven Cooreman
58c94d39ae Make psa_get_mac_output_length testable and test it
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-03 10:37:35 +01:00
Steven Cooreman
5ad4bf75e3 Move MAC default length checking into psa_key_policy_permits
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-02 21:36:33 +01:00
Steven Cooreman
328f11c50e Language & readability touchups
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-02 11:44:51 +01:00
Steven Cooreman
16a05f5881 Add metadata tests intertwining truncated and at-least-length algos
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:09:24 +01:00
Steven Cooreman
a1d8322f74 Fix typos & copy-paste errors
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:09:24 +01:00
Steven Cooreman
fb9cb92055 Move wildcard-to-exercisable conversion to exercise_key in test suite
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:09:24 +01:00
Steven Cooreman
7e39f05929 Using a wildcard as a specific algorithm now reports invalid argument
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:03:40 +01:00
Steven Cooreman
ae3f13bf5e Add more test cases and fix AT_LEAST_THIS_LENGTH against base algorithm
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:03:40 +01:00
Steven Cooreman
a96e2410e7 Test _AT_LEAST_THIS_LENGTH macros in the PSA Crypto metadata test suite
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:03:40 +01:00
Steven Cooreman
2c2efa488b Fix dependency-setting script and test dependencies for new tests
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:03:39 +01:00
Steven Cooreman
5d81481a1c Rename AEAD WITH_MINIMUM_LENGTH to AT_LEAST_THIS_LENGTH
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>

# Conflicts:
#	include/psa/crypto_values.h
#	tests/suites/test_suite_psa_crypto.data
2021-03-01 16:00:31 +01:00
Steven Cooreman
caad49316b rename MAC_WITH_MINIMUM_LENGTH_TAG to AT_LEAST_THIS_LENGTH_MAC
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:00:31 +01:00
Steven Cooreman
b3ce8156ce Add support for minimum-tag-length AEAD and MAC policies
Includes tests.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>

# Conflicts:
#	include/psa/crypto_values.h
#	tests/suites/test_suite_psa_crypto.function
2021-03-01 16:00:31 +01:00
Gilles Peskine
5a7702e76d Fix some C function documentation in the test framework
The primary goal of this commit is to fix various comments where
`clang -Wdocumentation` identified a discrepancy between the actual
function parameters and the documented parameters. The discrepancies
were due to copypasta, formatting issues or documentation that had
diverged from the implementation.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:36:07 +01:00
Gilles Peskine
6e0d5bd00d Increment the test step number when invalidating a key
This makes failure messages easier to understand.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:36:07 +01:00
Gilles Peskine
65048ad648 Destroy recorded persistent keys in PSA_DONE()
This ensures that test cases won't leave persistent files behind even
on failure, provided they use TEST_USES_KEY_ID(). Test cases that
don't use this macro are unaffected.

Tests that use PSA_DONE() midway and expect persistent keys to survive
must use PSA_SESSION_DONE() instead.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:36:07 +01:00
Gilles Peskine
aae718caca New test helper to purge persistent key from memory
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:36:07 +01:00
Gilles Peskine
313ffb8f90 Move PSA storage cleanup out of the slot_management test suite
Merge the two identical definitions of TEST_USES_KEY_ID and
mbedtls_test_psa_purge_key_storage from
test_suite_psa_crypto_slot_management.function and
test_suite_psa_crypto_se_driver_hal.function into a single copy in
common test code so that it can be used in all test suites.

No semantic change.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:36:07 +01:00
Gilles Peskine
b9ad79417d Push back on divergence of duplicated code
Persistent storage common code from
test_suite_psa_crypto_slot_management.function had been duplicated in
test_suite_psa_crypto_se_driver_hal.function and the copy had slightly
diverged. Re-align the copy in preparation from moving the code to a
common module and using that sole copy in both test suites.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:29:38 +01:00
Gilles Peskine
e95a643839 Prepare to move persistent storage cleanup to common code
Rename functions to mbedtls_test_xxx and make them non-static if
they're going to be exported.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:29:38 +01:00
Gilles Peskine
e78b00210a Move exercise_key and related functions to their own module
Move mbedtls_test_psa_exercise_key() (formerly exercise_key()) and
related functions to its own module. Export the few auxiliary
functions that are also called directly.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:29:38 +01:00
Gilles Peskine
8e94efe4ba Move asn1_skip_integer to the asn1_helpers module
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:29:38 +01:00
Gilles Peskine
ea38a926c1 Remove a redundant export step in import_export
exercise_export_key() exports the key and does sanity checks on the
result. Here we've already just exported the key, so just run the
sanity checks.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:29:38 +01:00
Gilles Peskine
c18e25f6df Prepare to move exercise_key and friends to their own module
Rename functions to mbedtls_test_psa_xxx if they're going to be
exported. Declare functions as static if they're aren't meant to be
called directly from test code.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-23 20:29:38 +01:00
Gilles Peskine
3d979f781e Add init-free tests for entropy
These tests validate that an entropy object can be reused and that
calling mbedtls_entropy_free() twice is ok.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 21:24:02 +01:00
Gilles Peskine
914afe1fdb Add init-free tests for RSA
These tests are trivial except when compiling with MBEDTLS_THREADING_C
and a mutex implementation that are picky about matching each
mbedtls_mutex_init() with exactly one mbedtls_mutex_free().

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine
7aba036154 Add missing cleanup in test function
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine
2a4c598859 Detect and report mutex usage errors
If the mutex usage verification framework is enabled and it detects a
mutex usage error, report this error and mark the test as failed.

This detects most usage errors, but not all cases of using
uninitialized memory (which is impossible in full generality) and not
leaks due to missing free (which will be handled in a subsequent commit).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:08:14 +01:00
Gilles Peskine
1061ec6782 Mutex usage testing: set up wrapper functions
When using pthread mutexes (MBEDTLS_THREADING_C and
MBEDTLS_THREADING_PTHREAD enabled), and when test hooks are
enabled (MBEDTLS_TEST_HOOKS), set up wrappers around the
mbedtls_mutex_xxx abstraction. In this commit, the wrapper functions
don't do anything yet.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:08:14 +01:00
Gilles Peskine
1f186ff330 Add missing calls to USE_PSA_DONE
Some functions were not deinitializing the PSA subsystem. This could
lead to resource leaks at the level of individual test cases, and
possibly at the level of the whole test suite depending on the order
and selection of test cases.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:08:14 +01:00
Gilles Peskine
9de97e21fe Make {USE_,}PSA_{INIT,DONE} available in all test suites
Make USE_PSA_INIT() and USE_PSA_DONE() available in all test suites in
all cases, doing nothing if MBEDTLS_USE_PSA_CRYPTO is disabled. Use
those in preference to having explicit
defined(MBEDTLS_USE_PSA_CRYPTO) checks (but there may still be places
left where using the new macros would be better).

Also provide PSA_INIT() by symmetry with PSA_DONE(), functional
whenver MBEDTLS_PSA_CRYPTO_C is enabled, but currently unused.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:08:14 +01:00
Dave Rodgman
d6ee36ed04
Merge pull request #4110 from gilles-peskine-arm/psa-external-random-in-mbedtls
Expose the PSA RNG in mbedtls
2021-02-22 14:47:29 +00:00
Gilles Peskine
bd21b18a1f
Merge pull request #4126 from gilles-peskine-arm/ccm-test-iv-overflow-warning
Silence gcc-10 warning in test_suite_ccm
2021-02-20 00:12:21 +01:00
Gilles Peskine
f68a9cf1e7 Fix test code under MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:58:29 +01:00
Gilles Peskine
d169d60319 Skip dependency symbols that are not implemented
A temporary hack: at the time of writing, not all dependency symbols
are implemented yet. Skip test cases for which the dependency symbols are
not available. Once all dependency symbols are available, this comit
should be reverted.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:58:29 +01:00
Gilles Peskine
60b29fea46 Define WANT symbols for always-supported key types
PSA_KEY_TYPE_RAW_DATA and PSA_KEY_TYPE_DERIVE are always supported.
Make this explicit by declaring PSA_WANT_KEY_TYPE_RAW_DATA and
PSA_WANT_KEY_TYPE_DERIVE unconditionally. This makes it easier to
infer dependencies in a systematic way.

Don't generate not-supported test cases for those key types. They
would always be skipped, which is noise and would make it impossible
to eventually validate that all test cases pass in at least one
configuration over the whole CI.

Don't remove the exception in set_psa_test_dependencies.py for now, to
get less noise in dependencies. This may be revised later if it is
deemed more important to be systematic.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:52 +01:00
Gilles Peskine
7f756876b9 Append the key size to ECC curve dependencies
ECC curve dependency symbols include the key size in addition to the
curve family. Tweak the dependencies once the key size is known.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine
7d112ae04c Check in test_suite_psa_crypto_not_supported.generated.data
This test data file is automatically generated. We could do that as
part of the build, since the only requirement is Python and we have a
requirement on Python to build tests anyway (to generate the .c file
from the .function file). However, committing the generating file into
the repository has less impact on build scripts, and will be necessary
for some of the files generated by generate_psa_tests.py (at least the
storage format stability tests, for which stability is guaranteed by
the fact that the generated file doesn't change). To keep things
simple, for now, let's commit all the files generated by
generate_psa_tests.py into the repository.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine
069346cdab New test suite for not-supported cases: key creation (import, generate)
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>
2021-02-17 14:50:17 +01:00
Gilles Peskine
cd2d648b00 Explain the "external RNG large" test case
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-16 15:46:06 +01:00
Gilles Peskine
ddeb8896ff Exclude random_twice tests with MBEDTLS_TEST_NULL_ENTROPY
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-16 15:46:06 +01:00
Gilles Peskine
e3ed802138 Expose mbedtls_psa_get_random()
Expose whatever RNG the PSA subsystem uses to applications using the
mbedtls_xxx API.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-16 15:39:48 +01:00
Ronald Cron
010d7c72c3
Merge pull request #3744 from ronald-cron-arm/psa-generate-key-internal
Rework psa_generate_key
2021-02-16 13:29:21 +01:00
Gilles Peskine
bb86d0c61c
Merge pull request #3995 from stevew817/feature/psa_configurable_static_ram_usage
Allow tweaking PSA_KEY_SLOT_COUNT
2021-02-16 12:52:24 +01:00
Ronald Cron
d00f5e188a tests: psa: Remove generate key test case restriction
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>
2021-02-16 09:07:46 +01:00
Ronald Cron
f619c68be9 psa: driver wrappers: Add generate key unit test with no fallback
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>
2021-02-16 09:07:46 +01:00
Steven Cooreman
863470a5f9 Rename PSA_KEY_SLOT_COUNT to MBEDTLS_PSA_KEY_SLOT_COUNT
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-02-15 14:26:44 +01:00
Steven Cooreman
70f654a89c Fix a malformed define guard
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-02-15 10:51:43 +01:00
Ronald Cron
5cd00d28bf
Merge pull request #4092 from ronald-cron-arm/psa-crypto-client
Psa crypto client
2021-02-15 10:46:35 +01:00