Commit graph

10 commits

Author SHA1 Message Date
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 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 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 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
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 2352396808 Obtain the values of expressions by running C code
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00
Gilles Peskine e00944807c New python module to encode a PSA key for storage
Construct an object given the attributes and material for a PSA crypto key
and get the Mbed TLS storage representation.

The code to generate the storage representation was written based on the
specification in docs/architecture/mbed-crypto-storage-specification.md,
without looking at the code.

The data in the unit tests is from the AES-128 format_storage_data_check
test case in test_suite_psa_crypto_persistent_key.data, tweaked manually.

This commit creates a basic framework for using symbolic values for
attributes, but does not yet implement obtaining the corresponding numerical
values from an external source.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-10 23:22:35 +01:00