Commit Graph

1041 Commits

Author SHA1 Message Date
Ronald Cron
9f97c6ecdf Update PSA crypto test dependencies
Given the PSA_WANT_* config options added lately,
update set_psa_test_dependencies.py and run it
on test_suite_psa_crypto*.data files but the SE
and generated ones.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-03-24 09:26:44 +01:00
Ronald Cron
9838dc2702 tests: Fine tune handling of policy negative tests
Fine tune handling of policy negative tests when
setting automatically PSA crypto unit tests
dependencies.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-03-24 09:18:23 +01:00
Ronald Cron
6ac020d797 tests: Treat PSA_WANT_ECC_* as manual dependencies
For the time being, it is not possible to determine
the size of ECC keys from the arguments of all test
cases thus treat them as dependencies that are not
systematic. Such dependencies are not generated nor
deleted by set_psa_test_dependencies.py.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-03-24 09:03:56 +01:00
Gilles Peskine
01196d0464
Merge pull request #4214 from gilles-peskine-arm/psa-storage-format-test-types
PSA storage format test case generator
2021-03-22 12:16:17 +01:00
Gilles Peskine
d86bc52d78 Cover encodings of algorithms without parameters
Generate test cases for all algorithms without parameters. Only the encoding
of the algorithm in the key metadata is covered: the test keys are not of a
type that permits the algorithm to be used in an operation.

This commit only covers algorithms without parameters. A subsequent commit
will generate algorithms with parameters.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-16 22:29:12 +01:00
Steven Cooreman
753f973f87 Use full config during driver testing
Due to the way the test drivers are setup, we require the full setup.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-15 12:14:40 +01:00
Gilles Peskine
f8223abb16 Cover all key types
Generate test cases for all key types. These test cases cover the key
representation (checked with export) and the encoding of the key type and
the bit-size.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Gilles Peskine
897dff9527 Code to generate storage format test cases
Start generating storage format test cases. This commit introduces two test
data files: test_suite_psa_crypto_storage_format.v0.data for reading keys in
storage format version 0 (the current version at this time), and
test_suite_psa_crypto_storage_format.current.data for saving keys in the
current format (version 0 at this time).

This commit kicks off the test case generation with test cases to exercise
the encoding of usage flags. Subsequent commits will cover other aspects of
keys.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Gilles Peskine
22fcf1b5f5 Move PSAMacroEnumerator to macro_collector
It's useful for more than test_psa_constant_names.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Gilles Peskine
10ab267afb Add some type annotations
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Gilles Peskine
6f7ba5f9c4 Split out PSAMacroEnumerator from the test data collection code
Split out the code that enumerates constructors of a PSA crypto type
from the code used to populate the list of constructors for the
specific purpose of testing psa_constant_names.

This commit adds some documentation but otherwise strives to minimize
code changes.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Gilles Peskine
3d7783909a Use an iterator when constructing test cases
It's more pythonic, and more importantly more readable.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Gilles Peskine
0298bdae8d generate_psa_tests.py: allow generating each file independently
Generating all files all the time makes debugging one specific target
harder. So support generating a selection of targets only.

As a bonus, it is now more apparent what files this script generates,
and check-generated-files.sh takes advantage of it.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Gilles Peskine
b94ea51ad0 Break up the god class TestGenerator
Use separate classes for information gathering, for each kind of test
generation (currently just one: not-supported), and for writing output
files.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Steven Cooreman
d50db945c4 Add hash acceleration driver testing
Test hash algorithm functions when called through a transparent
driver in all.sh test_psa_crypto_config_basic and
test_psa_crypto_drivers components.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-10 13:03:36 +01:00
Manuel Pégourié-Gonnard
17605f072b
Merge pull request #4151 from ronald-cron-arm/psa-sign_verify-hash
PSA sign and verify hash rework
2021-03-10 10:08:50 +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
4400c3a44a Add _AT_LEAST_THIS_LENGTH_ macros to PSA constants test
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:03:39 +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
Ronald Cron
17b3afcc33 tests: psa: Test sign/verify hash by a transparent driver
Test signature and signature verification by a transparent
driver in all.sh test_psa_crypto_config_basic and
test_psa_crypto_drivers components.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-18 15:45:12 +01:00
Gilles Peskine
0d241eda69 Remove trailing comma which is only supported since Python 3.6
It's a syntax error in Python 3.5 and we run that in our CI.

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
af1728442d Generate not-supported test cases: ECC key types
Add support for ECC key types to the generation of not-supported test
cases in generate_psa_tests.py. For each curve, generate test cases
both for when ECC isn't supported and for when the curve isn't
supported.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine
14e428f921 Generate not-supported test cases automatically: import, generate
For each declared key type, generate test cases for psa_import_key and
psa_generate_key when the corresponding type is not supported.

Some special cases:
* Public keys can never be generated.
* Omit key types that Mbed TLS does not support at all.
* ECC and FFDH, which depend on a curve/group, are not covered yet.

The generated test cases are written to
tests/suites/test_suite_psa_crypto_not_supported.generated.data .

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine
0994049614 New framework for generating PSA test cases automatically
This commit creates a script to generate test cases automatically
based on enumerating PSA key types, algorithms and other
classifications of cryptographic mechanisms.

Subsequent commits will implement the generation of test cases.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine
38c12fd48e In external_rng tests, disable the entropy module
The point of having an external RNG is that you can disable all
built-in RNG functionality: both the entropy part and the DRBG part.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-16 15:46:06 +01:00
Gilles Peskine
8eb2943705 Support mbedtls_psa_get_random() in SSL test programs
The SSL test programs can now use mbedtls_psa_get_random() rather than
entropy+DRBG as a random generator. This happens if
the configuration option MBEDTLS_USE_PSA_CRYPTO is enabled, or if
MBEDTLS_TEST_USE_PSA_CRYPTO_RNG is set at build time.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-16 15:39:48 +01:00
Ronald Cron
761905e7a3 tests: psa config: Extend tests to RSA keys
Extend import/export/generate key through a PSA
transparent driver without software fallback
testing to RSA keys.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-16 09:07:46 +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
Bence Szépkúti
a63b20d28b Rename AEAD tag length macros
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>
2021-02-11 11:39:31 +01:00
Gilles Peskine
2747d7dc60 Duplicate no-DRBG tests: with and without MBEDTLS_USE_PSA_CRYPTO
Whether MBEDTLS_USE_PSA_CRYPTO is enabled makes a significant
difference with respect to how random generators are used (and, for
no-HMAC_DRBG, how ECDSA signature is dispatched), so test both with
and without it.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-03 15:50:46 +01:00
Ronald Cron
80eaa93b59 tests: psa: Reactivate and expand key management through test driver
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>
2021-02-02 11:38:50 +01:00
Gilles Peskine
80a970806f No dependencies for storage format tests
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>
2021-02-01 13:22:38 +01:00
Gilles Peskine
b51d72f82e Run copy_fail even when the target policy is unsupported
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>
2021-02-01 13:22:38 +01:00
Gilles Peskine
fa37961413 Rename OMITTED_SYSTEMATIC_DEPENDENCIES
It isn't a set of dependencies, it's a set of symbols. So give it a
name that describes the symbol rather than a name that pretends it's a
collection of dependencies.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:22:38 +01:00
Gilles Peskine
0794572f96 More precise recognition of key policy negative tests
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>
2021-02-01 13:22:38 +01:00
Gilles Peskine
a87e178553 If there are no arguments, don't update the file content
This avoids having to bother with edge cases of the .data syntax.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
72d8e0ad04 Key policy negative tests don't actually require the algorithm
It doesn't make much difference in practice, but to keep closer to
what the current code does, run negative key policy tests even if the
algorithm for the operation attempt is not supported.

In particular, this allows the following test cases to run:
* "PSA key policy: agreement + KDF, wrong agreement algorithm"
* "PSA key policy: raw agreement, wrong algorithm"
Without this exception, those two test cases would never run, because
they would depend on PSA_ALG_WANT_FFDH. Since FFDH is not implemented
yet, it isn't enabled in any configuration. There's no alternative to
FFDH for these particular test cases because ECDH is the only key
agreement that is implemented in Mbed TLS so far.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
20987b9a46 Detect test cases that require something not to be supported
PSA_xxx_CATEGORY_yyy is used in metadata tests where it doesn't
involve any particular support, and elsewhere it's used as a value
that is definitely not supported but is in a plausible range. Such
symbols do not require any dependency.

If a test case is expects PSA_ERROR_NOT_SUPPORTED, its
dependencies (often including one negative dependency) cannot be
determined automatically, so leave that test case alone.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
f032fa9d94 Special handling for some always-on or alias symbols
Some symbols don't require a dependency symbol:

* Modifiers such as truncated MAC
* Always-on features such as the raw data key type
* Aliases or special values such as RSA PKCS#1v1.5 raw

I'm not convinced that all of these warrant special handling in the
script, rather than having the expected symbol defined somewhere. But
for now I prefer to minimize changes to the header files.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
81dec0047f Remove classic crypto dependencies
Don't remove cipher-related dependencies because the corresponding
PSA_WANT_xxx dependencies are not implemented yet.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
e4f539caf9 Don't add cipher-related PSA_WANT_xxx because they aren't implemented yet
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
9bbba5ea69 Add a function to remove classic crypto dependencies
A list of symbols to remove will be added in a subsequent commit.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
2d2e924401 Implement basic update of PSA_WANT dependencies
Remove any existing PSA_WANT_xxx dependency. Add PSA_WANT_xxx
dependencies based on the PSA_KEY_TYPE_xxx and PSA_ALG_xxx symbols
used in the test case arguments.

PSA_ECC_FAMILY_xxx and PSA_DH_GROUP_xxx are not implemented yet in the
PSA conditional inclusion mechanism in Mbed TLS, so this script
doesn't handle them yet.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
45e9e73e66 Add a possibility to keep manual dependencies for certain functions
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
82ebaa4d36 Implement stanza parsing in .data files
Parse the existing dependencies. For now, just write them back.
Subsequent commits will implement the dependency processing that is
the goal of this program.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
bdffaeaf3a New script to determine PSA crypto test dependencies automatically
This commit only contains a framework to rewrite .data files. No
actual modification of the content is implemented yet.

For now, command line parsing is trivial: just a list of file names,
with no options.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00