Commit Graph

60 Commits

Author SHA1 Message Date
Gilles Peskine
c2fc241e46 Test attempts to use a public key for a private-key operation
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-04-05 15:19:16 +02:00
Gilles Peskine
23cb12ef9f A key agreement algorithm can contain a key derivation
PSA_ALG_KEY_AGREEMENT(..., kdf) is a valid key derivation algorithm
when kdf is one.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-04-05 15:19:16 +02:00
Gilles Peskine
d096445dfe In NOT_SUPPORTED test case descriptions, show what is not supported
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-04-05 15:19:16 +02:00
Gilles Peskine
f8b6b503b4 Systematically generate test cases for operation setup failure
The test suite test_suite_psa_crypto_op_fail now runs a large number
of automatically generated test cases which attempt to perform a
one-shot operation or to set up a multi-part operation with invalid
parameters. The following cases are fully covered (based on the
enumeration of valid algorithms and key types):
* An algorithm is not supported.
* The key type is not compatible with the algorithm (for operations
  that use a key).
* The algorithm is not compatible for the operation.

Some test functions allow the library to return PSA_ERROR_NOT_SUPPORTED
where the test code generator expects PSA_ERROR_INVALID_ARGUMENT or vice
versa. This may be refined in the future.

Some corner cases with algorithms combining a key agreement with a key
derivation are not handled properly. This will be fixed in follow-up
commits.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-04-05 15:19:16 +02:00
Gilles Peskine
a218047245 Generate test cases for hash operation failure
Test that hash operation functions fail when given a hash algorithm
that is not supported or an algorithm that is not a hash.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-04-05 15:19:16 +02:00
Gilles Peskine
c05158bf86 New test suite for systematically generated operation failure tests
The new test suite psa_crypto_op_fail is intended for systematically
generated test cases that ensure that cryptographic operations with
invalid parameters fail as expected. I intend invalid parameters to
cover things like an invalid algorithm, an algorithm that is
incompatible with the operation, a key type that is incompatible with
the algorithm, etc.

This commit just creates the infrastructure. Subsequent commits will
add data generation and test code.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-04-05 15:19:16 +02:00
Gilles Peskine
a296e48b2b Simplify key_for_usage_flags
Generate "with implication" and "without implication" usage test cases
separately.

The set of generated test cases is unchanged. The order, and the description
of "with implication" test cases, changes.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-04-05 15:19:16 +02:00
Gilles Peskine
cfd4fae89d Add storage format checks to the interface checker
Expand abi_check.py to look for backward incompatibilities not only in
the interface exposed to application code (and to some extent driver
code), but also to the interface exposed via the storage format, which
is relevant when upgrading Mbed TLS on a device with a PSA keystore.

Strictly speaking, the storage format checks look for regressions in
the automatically generated storage format test data. Incompatible
changes that are not covered by the generated tests will also not be
covered by the interface checker.

A known defect in this commit is that the --brief output is not brief
for storage format checks.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-03-04 20:18:27 +01:00
Przemyslaw Stekiel
292759319f Fix rebase issue in generate_psa_tests.py
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-11-09 12:06:37 +01:00
Przemyslaw Stekiel
1ab3a5ca98 generate_psa_tests.py: add key generation result to test case argument list, add comments
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-11-09 12:01:19 +01:00
Przemyslaw Stekiel
0810108f12 Fix issues pointed by CI
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-11-09 12:01:14 +01:00
Przemyslaw Stekiel
c03b7c58d1 Remove unused param and duplicated test cases
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-11-09 11:55:58 +01:00
Przemyslaw Stekiel
32a8b84814 Remove key generation when given argument is invalid from NotSupported class
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-11-09 11:55:58 +01:00
Przemyslaw Stekiel
997caf835c Add test class for key generation
Genertae test_suite_psa_crypto_generate_key.generated.data.
Use test_suite_psa_crypto_generate_key.function as a test function.

Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-11-09 11:55:58 +01:00
Przemyslaw Stekiel
d6ead7ca84 Address review comments
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-10-11 16:39:32 +02:00
Przemyslaw Stekiel
81be6e275c enerate_psa_tests.py fix format
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-10-08 15:40:16 +02:00
Przemyslaw Stekiel
330e460ef3 Addapt psa_generate_key() tests
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-10-08 12:56:45 +02:00
Gilles Peskine
3008c58df9 Speed up the generation of storage format test cases
Restore the optimization done in
 HEAD^{/Speed up the generation of storage format test cases}
which was lost during refactoring made when adding support for
implicit usage flags.

There are still more than one call to the C compiler, but the extra
calls are only for some key usage test cases.

This is an internal refactoring. This commit does not change the
output of generate_psa_tests.py

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-07-06 21:08:46 +02:00
gabor-mezei-arm
3ea27325c9
Fix pylint issue
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-29 17:21:21 +02:00
gabor-mezei-arm
ea840dea61
Return iterator instead of list
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-29 15:42:57 +02:00
gabor-mezei-arm
912eca3847
Rename function
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-29 15:39:56 +02:00
gabor-mezei-arm
e4b7499f74
Refactor handlibg of the key usage flags
Move implicit usage flags handling to the StorageKey class.
Create a subclass for test case data.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-29 15:29:24 +02:00
gabor-mezei-arm
805c735a8b
Move key type validation to crypto_knowledge
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 21:36:58 +02:00
gabor-mezei-arm
5ea30377d3
Refactor key generation
Remove the key builder and use iterator instead of lists.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 21:36:58 +02:00
gabor-mezei-arm
acfcc18697
Rename variables and funcions
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 19:39:31 +02:00
gabor-mezei-arm
e84d321317
Use string in dict instead of Expr object
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 16:54:11 +02:00
gabor-mezei-arm
4781263704
Remove unnecessary test cases
It is enough only one test case for a key type, algorithm pair when
testing the implicit usage flags.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 16:41:36 +02:00
gabor-mezei-arm
927742ec71
Add better name for variables
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 16:41:35 +02:00
gabor-mezei-arm
705c452fd0
Simplify code
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 16:41:35 +02:00
gabor-mezei-arm
7d2ec9a223
Fix generated file modification
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:28:36 +02:00
gabor-mezei-arm
bce8527698
Fix test case duplication
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:28:36 +02:00
gabor-mezei-arm
b92d61b7e6
Fix pylint issues
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:28:36 +02:00
gabor-mezei-arm
044fefcdfb
Add test case generation for usage extensions when loading keys
Add test cases validating that if a stored key only had the hash policy,
then after loading it psa_get_key_attributes reports that it also has the
message policy, and the key can be used with message functions.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:28:36 +02:00
gabor-mezei-arm
15c1f03f78
Add key usage policy extension support for key generation
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:28:34 +02:00
gabor-mezei-arm
4d9fb73c99
Use different subslasses for the test data files
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:27:55 +02:00
gabor-mezei-arm
8b0c91c91f
Create a function for gather all the keys.
Prepare for using subclasses.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:27:55 +02:00
gabor-mezei-arm
d71659f447
Extend description generation
Add an extra optional parameter to generate a more detailed description
for test cases.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:27:55 +02:00
gabor-mezei-arm
0996080652
Use builder method pattern to generate a key
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-28 15:27:49 +02:00
gabor-mezei-arm
9774dcf592
Convert iterators to lists to remove late binding
Remove late binding of iterators to enable the creation of an object
with an actual state of a variable.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-24 12:39:18 +02:00
gabor-mezei-arm
0bdb84e861
Add type annotations
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-06-24 12:37:08 +02:00
Gilles Peskine
efb584d4c0 Add storage tests for lifetimes
Test keys with various persistence levels, enumerated from the
metadata tests.

For read-only keys, do not attempt to create or destroy the key
through the API, only to read a key that has been injected into
storage directly through filesystem access.

Do not test keys with a non-default location, since they require a
driver and we do not yet have a dependency mechanism to require the
presence of a driver for a specific location value.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-28 12:53:15 +02:00
Gilles Peskine
643eb83f06 key_storage_read: pass exercise as a flag rather than a boolean
This will allow adding other flags in the future.

No intended behavior change.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-25 19:35:20 +02:00
Gilles Peskine
ff9629f92d Abbreviate algorithms in test descriptions
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-25 19:35:14 +02:00
Gilles Peskine
8a55b434c2 Don't generate non-existent dependency symbols
Filter our algorithm constructors that don't have a dependency symbol
of their own.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-25 19:34:23 +02:00
Gilles Peskine
b93f854f4c Expand psa_generate_tests to support constructor arguments
In macro_collector.py, base InputsForTest on PSAMacroEnumerator rather
than PSAMacroCollector. It didn't make much sense to use
PSAMacroCollector anymore since InputsForTest didn't use anything
other than the constructor.

psa_generate_tests now generates arguments for more macros.
In particular, it now collects macro arguments from
test_suite_psa_crypto_metadata. Algorithms with parameters are now
supported.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-25 19:34:09 +02:00
Gilles Peskine
ae9f14b159 Speed up the generation of storage format test cases
First build a list of all keys, then construct all the corresponding
test cases. This allows all required information to be obtained in
one go, which is a significant performance gain as the information
includes numerical values obtained by compiling a C program.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-25 19:31:21 +02:00
Gilles Peskine
d6d2d6a7d7 Use InputsForTest in generate_psa_tests
In generate_psa_tests, use InputsForTest rather than PSAMacroCollector
to gather values. This way, the enumeration of values to test includes
values used in metadata tests in addition to constructors parsed from
header files. This allows greater coverage of values built from
constructors with arguments. This doesn't make a difference yet, but
it will once algorithm constructors with arguments are supported in
generate_psa_tests.

Make the injection of numerical values optional. They are useful for
test_psa_constant_names, so keep them there. Don't use them for
not-supported tests: they might make sense, but the current code
wouldn't work since it doesn't know how to make up fake key material
or what dependencies to generate. Don't use them for storage tests:
they only make sense for supported values.

Don't inject 'PSA_SUCCESS': that's superfluous.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-25 19:31:21 +02:00
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
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