Commit graph

703 commits

Author SHA1 Message Date
Gilles Peskine 662deb38d6
Merge pull request #3547 from ronald-cron-arm/psa-openless
Openless PSA crypto APIs implementation
2020-11-20 18:48:33 +01:00
Ronald Cron 1d12d87d18 Improve/fix documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-20 13:57:15 +01:00
Ronald Cron 1ad1eeeaf1 psa stats: Count locked slots instead of unlocked ones
Count locked slots and not unlocked ones to
align with the other statistics counters.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-19 16:59:40 +01:00
Ronald Cron 5c522920ba psa: Rename functions to get a key slot
Rename functions to get a key slot:
. to make their naming more consistent
. to emphasize that those functions set a lock on the
  key slot they return to protect it from being wiped
  out and re-used while some part of the library
  is accessing it.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-19 16:59:40 +01:00
Gilles Peskine 9a68810405
Merge pull request #3830 from jdurkop/psa-crypto-config-phase2
Phase 2 support for MBDTLS_PSA_CRYPTO_CONFIG
2020-11-19 09:32:23 +01:00
John Durkop 07cc04a8ad Updates to PSA crypto library based on review comments
Moved new check_crypto_config.h file from include/psa to library
directory and the file is now included from *.c instead of the
crypto_config.h file. Fixed guards in PSA crypto library based
on review comments for new PSA crypto config features.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-18 08:09:49 -08:00
John Durkop b6f7afcb5c Move check config feature for PSA_WANT
Moved from doing the dependency checks for MBEDTLS_PSA_BUILTIN to
checking the PSA_WANT macros for the dependency checks. This required
moving the file into the include/psa directory and having the file be
included by crypto_config.h instead of config_psa.h.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-12 11:39:07 -08:00
Ronald Cron 0c3752a46b psa: slot mgmt: Add unaccessed slots counter in stats
Add a counter of unaccessed slots and use it
in tests to check that at the end of PSA tests
all key slot are unaccessed.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 18:19:59 +01:00
Ronald Cron d98059d599 psa: Fix tests/handling of lifetime incompatible with location
The lifetime of key attributes now encodes whether a key is
volatile/persistent or not AND its location.
Fix PSA code where the fact that the lifetime encodes
the key location was not taken into account properly.

Fix the impacted tests and add two non regression tests.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 18:18:15 +01:00
Ronald Cron 4067d1c1e5 psa: Improve key creation documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:18:07 +01:00
Ronald Cron 967835596c psa: Fix references to macros in comments
This commit tries to fix the usage of #MACRO_NAME
to reference macros in comments.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:18:07 +01:00
Ronald Cron 6b5ff53c01 Add mbedtls_set_key_owner_id API
Add the mbedtls_set_key_owner_id API,
API specific to the MbedTLS PSA implementation.
The API allows to define the owner of
volatile keys.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:18:07 +01:00
Ronald Cron 5425a21fd2 tests: Adapt PSA tests to openless APIs
psa_key_handle_equal() is removed as not used
anymore.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron 277a85f1ef Add psa_purge_key API
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron cf56a0a320 psa: Move from key handle to key identifier
Move all the PSA crypto APIs using key handles
to use key identifiers but psa_key_open() and
psa_key_close(). This is done without modifying
any test as key handles and key identifiers are
now the same.

Update the library modules using PSA crypto APIs
to get rid of key handles.

Programs and unit tests are updated to not use
key handles in subsequent commits, not in this
one.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron c4d1b514ab Define handles as key identifiers
Define psa_key_handle_t to be equal to
mbedtls_svc_key_id_t. Make the handle of a persistent
key be equal to its key identifier. For volatile keys,
make the key handle equal to the volatile key
identifier of the created volatile key.

The unit tests are modified just to make them compile
not to make them run successfully. They are fixed in
the subsequent commits.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron 47a85614ed Introduce psa_key_handle_equal inline function
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron c26f8d467a Introduce psa_key_handle_is_null inline function
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron 91e9515424 Introduce PSA_KEY_HANDLE_INIT macro
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
John Durkop 9814fa2b08 Minor updates from review comments
Updated macros in config_psa.h that used ECC_xxx to use KEY_TYPE_ECC_xxx
per comments from review. Implemented a check_config_psa.h to help with
dependency checking of features enabled in config_psa.h. Added
check_config_psa.h to visual studio project.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:11:41 -08:00
John Durkop 7fc75eac21 Enable all features in crypto_config.h
In order to pass existing tests like test_psa_crypto_config_basic
and test_psa_crypto_config_no_driver, all the new features need
to be enabled in the default crypto_config.h file. This change
enables those features by default and updates the other new
tests to compensate for everything being enabled by disabling
some features for some of the tests as needed.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:11:41 -08:00
John Durkop 0e00519711 Add feature support for RSA for PSA crypto config
In the original attempt to add RSA support to PSA crypto config was too
generic. This set of changes adds support for the following RSA features:
PSA_WANT_ALG_RSA_PKCS1V15_CRYPT, PSA_WANT_ALG_RSA_PKCS1V15_SIGN,
PSA_WANT_ALG_RSA_OAEP, PSA_WANT_ALG_RSA_PSS, PSA_WANT_KEY_TYPE_RSA_KEY_PAIR,
and PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY.

There were also some updates to ensure the proper inclusion of PSA crypto
library code when certain features are enabled. These updates were made to
address warnings and errors in builds from the new tests for these
features being added for PSA crypto configuration.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:11:41 -08:00
John Durkop f4c4cb008c Added additional support for ECP for PSA_CRYPTO_CONFIG
The KEY_TYPE_ECC_KEY_PAIR and KEY_TYPE_ECC_PUBLIC_KEY were previously
being guarded by MBEDTLS_ECP_C in the PSA crypto library code. This change
moves it to the new MBEDTLS_PSA_BUILTIN_xxx and separates KEY_PAIR
and PUBLIC_KEY as needed. Tests have also been added to validate the new
settings.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:11:35 -08:00
John Durkop d032195278 Phase 2 support for MBEDTLS_PSA_CRYPTO_CONFIG
This phase adds in support for the following features being
added to the list of features that can be configured in the
include/psa/crypto_config.h header file using the PSA_WANT_ALG_xxx
macros: ECDH, HMAC, HKDF, and RSA. These changes include changes to
the PSA crypto library to use the appropriate new guards that
will allow the feature to be compiled in or out either using
new PSA_WANT_ALG_xxx or the previous MBEDTLS_xxx macros.

For HKDF and HMAC, most of the PSA library code did not have a
specific matching MBEDTLS_xxx macro for that feature, but was instead
using the generic dependent MBEDTLS_MD_C macro. The ECDH and RSA
features more closely aligned with a direct replacement with a similar
macro.

The new tests for RSA, HMAC, and HKDF would normally unset additional
dependent macros, but when attempting to implement that level of
testing it required removal of too many core features like MD_C, PK_C,
ECP_C and other low level features. This may point to additional phases of
work to complete the transition of these features to the new model.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:10:29 -08:00
Gilles Peskine bce4dc028f Include config_psa.h from psa/crypto.h
When the new PSA crypto configuration mechanism MBEDTLS_PSA_CRYPTO_CONFIG
is disabled, legacy configurations must keep working, even if they don't
include the new header file mbedtls/config_psa.h. Code that uses or
implements PSA crypto interfaces needs some of the symbols defined by the
new header file. Therefore, include the new header file via PSA crypto
headers, which are included everywhere mbedtls/config_psa.h is needed.

Include it early, in psa/crypto_platform.h, just after including
mbedtls/config.h, so that its symbols are available wherever the symbols
from mbedtls/config.h is available.

This fixes the unit tests with configs/config-psa-crypto.h: some unit
tests were failing, revealing that library features controlled with
the new symbols were no longer getting built.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-09 15:17:07 +01:00
Gilles Peskine 52f32c913e
Merge pull request #3787 from bensze01/iv_nonce_size
PSA: Add support macros for IV/nonce sizes
2020-10-30 09:45:11 +01:00
Bence Szépkúti 423d3e7fcf Update support macros for IV/nonce sizes
This commit defines the following new macros added to the PSA Crypto API
between versions 1.0 beta 3 and 1.0.0 final:

PSA_AEAD_NONCE_LENGTH
PSA_AEAD_NONCE_MAX_SIZE
PSA_CIPHER_IV_LENGTH
PSA_CIPHER_IV_MAX_SIZE

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-10-29 11:07:39 +01:00
John Durkop 0ea39e0ee4 Correct use of MBEDTLS_PSA_BUILTIN_ALG_xxx in crypto library
The psa crypto library was generically using PSA_WANT_ALG_xxx, but
should have been using the correct MBEDTLS_PSA_BUILTIN_ALG_xxx
definition since that code is the builtin version. There were also
a couple of spots that needed to ensure the code block was enabled
for either ECDSA or DETERMINISTIC_ECDSA, not just one of them.

Fixed all the new ALG_ECDSA_DETERMINISTIC names to be
ALG_DETERMINISTIC_ECDSA instead.

Fixed test to use correct definitions.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-15 07:39:02 -07:00
John Durkop 7b453130e2 Updates to fix check-names and all.sh tests after review
Need to make sure the new MBEDTLS_PSA_ACCEL_XXX defines are not checked
since they should be defined by the PSA driver. Updated the list-macros.sh
script to modify the instances of those found to match the corresponding
MBEDTLS_PSA_BUILTIN_XXX that are defined in config_psa.h

Fixed definition of MBEDTLS_PSA_BUILTIN_ALG_ECDSA_DETERMINISTIC, name was
incorrect. Also fixed a missing space in the comments of crypto_config.h

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-12 21:56:26 -07:00
John Durkop c7c03b7d17 Enhanced documentation for crypto_config.h
Provided more detailed documentation for crypto_config.h file so it
is clear to users can enable cryptographic mechanisms using
PSA_WANT_XXX. If MBEDTLS_PSA_CRYPTO_CONFIG is not set the settings in
this file are not used.

Ensure that defines used in this file are set to 1 and not simply defined
per the specification. Also removed the __cplusplus guards since they are
not needed for this file.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-12 21:42:03 -07:00
John Durkop 2dfaf9ca23 Update how MBEDTLS_PSA_CRYPTO_CONFIG is handled
Originally, MBEDTLS_PSA_CRYPTO_CONFIG was being used to allow
inclusion of mbedlts/config_psa.h, but that needed to be updated
so that mbedtls/config_psa.h is always included and the definitions
specific to PSA configuration are now guarded by
MBEDTLS_PSA_CRYPTO_CONFIG. This will allow for the standard setup
to continue working while new PSA configuration items to also work.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-24 05:01:17 -07:00
John Durkop 6e33dbe9fd Created infrastructure for MBEDTLS_PSA_CRYPTO_CONFIG
In order to prepare for PSA cryptographic mechanism for conditional
inclusion of various modules, there needs to be some updates to
the mbedtls configuration to enable that feature to work. This initial
set of changes just lays the ground work and future changes will
implement the functional features.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-24 05:01:17 -07:00
Gilles Peskine dc57c25e30
Merge pull request #3527 from ronald-cron-arm/key-extended-id
PSA key identifiers rework
2020-09-15 16:06:06 +02:00
Ronald Cron 7424f0d998 psa: Move key identifier related macros and functions
Move key identifier related macros and functions from
crypto_types.h to crypto_values.h as the latter is
the intended file to put them in.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-15 08:50:20 +02:00
Ronald Cron 9a2511e78f Fix key owner identifier documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-15 08:50:20 +02:00
Ronald Cron 5eba579c6c Remove unnecessary inline definition
Define inline for some compiling environment only
in crypto_platform.h.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-15 08:48:15 +02:00
Steven Cooreman ef8575e1bf Apply review feedback
* Reworked the cipher context once again to be more robustly defined
* Removed redundant memset
* Unified behaviour on failure between driver and software in cipher_finish
* Cipher test driver setup function now also returns early when its status
  is overridden, like the other test driver functions
* Removed redundant test cases
* Added bad-order checking to verify the driver doesn't get called where
  the spec says it won't.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 17:00:47 +02:00
Steven Cooreman a07b9970c6 Update semantics around driver context use in psa_cipher_setup
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 17:00:39 +02:00
Steven Cooreman fb81aa5889 Only pass the driver-relevant portion of the context struct
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 16:31:58 +02:00
Steven Cooreman 5240e8b519 Style and language fixes from review
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 16:31:58 +02:00
Steven Cooreman d3feccd3a5 Restructure cipher context object to contain driver switch
Once an operation has been 'accepted' by a driver, the remainder is bound
to the same driver, since driver-specific context structs cannot be shared.
This provides a pretty good gate mechanism for the fallback logic, too.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 16:31:52 +02:00
Steven Cooreman 37941cb5e1 Add initial pass on a multi-part test driver
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 16:30:14 +02:00
Gilles Peskine b1d3f2779b
Merge pull request #3480 from stevew817/feature/aes-ecb
Added support for AES-ECB to the PSA Crypto implementation
2020-09-14 14:45:14 +02:00
Ronald Cron ecfb237f23 Fix PSA code and unit tests
Fix PSA code and unit tests for the unit tests
to pass with key identifiers encoding owner
identifiers.

The changes in PSA code just make the enablement
of key identifiers encoding owner identifiers
platform independent. Previous to this commit,
such key identifiers were used only in the case
of PSA SPM platforms.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00
Ronald Cron 71016a9ea7 psa: Rename psa_key_file_id_t to mbedtls_svc_key_id_t
With PSA crypto v1.0.0, a volatile key identifier may
contain a owner identifier but no file is associated
to it. Thus rename the type psa_key_file_id_t to
mbedtls_svc_key_id_t to avoid a direct link with a
file when a key identifier involves an owner
identifier.

The new type name is prefixed by mbedtls to highlight
that the type is specific to Mbed TLS implementation
and not defined in the PSA Cryptography API
specification.

The svc in the type name stands for service as this
is the key identifier type from the point of view of
the service providing the Cryptography services.
The service can be completely provided by the present
library or partially in case of a multi-client service.

As a consequence rename as well:
. MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER to
  MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
. PSA_KEY_ID_INIT to MBEDTLS_SVC_KEY_ID_INIT
. PSA_KEY_FILE_GET_KEY_ID to MBEDTLS_SVC_KEY_ID_GET_KEY_ID
. psa_key_file_id_make to mbedtls_svc_key_id_make

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00
Ronald Cron 72f65fc6e9 psa: Rename pss_key_owner_id_t to mbedtls_key_owner_id_t
Rename psa_key_owner_id_t to mbedtls_key_owner_id_t to
highlight that this is a Mbed TLS specific type and not
a type defined in the PSA Cryptography API specification.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00
Ronald Cron fa7d7af55d psa: Don't reset the key owner id in psa_set_key_lifetime
As a volatile key identifier may have a non-zero owner
identifier, don't reset the key owner identifier (if any)
when setting a volatile lifetime for a key.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00
Ronald Cron 039a98b598 Define always psa_key_id_t as defined in PSA crypto spec
Define always psa_key_id_t as defined in the PSA
Cryptography API specification independently of
whether the MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER
configuration file is set or not.

As a consequence, get rid of `psa_app_key_id_t` that is
not needed anymore.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00
Ronald Cron 27238fcbd8 psa: Use psa_key_file_id_t as the key id type
The purpose of this commit and the following is for
psa_key_id_t to always be as defined by the PSA
Cryptography API specification.

Currently psa_key_id_t departs from its specification
definition when MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER
configuration flag is set. In that configuration, it is set
to be equal to psa_key_file_id_t which in that configuration
encodes an owner identifier along the key identifier.

Type psa_key_file_id_t was meant to be the key identifier type
used throughout the library code. If
MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER is set it
includes both a key and owner identifier, otherwise it is
equal to psa_key_id_t.

It has not been the key identifier type throughout the
library so far because when the PSA Cryptography
specification was developped the library Doxygen
documentation was used to generate the PSA Cryptography API
specification thus the need to use psa_key_id_t and not
psa_key_file_id_t.

As this constraint does not hold anymore, move
to psa_key_file_id_t as the key identifier type throughout
the library code.

By the way, this commit updates the key identifier
initialization in the tests to be compatible with a
composit key identifier. A psa_key_id_make()
inline function is introduced to initialize key
identifiers (composit ot not) at runtime.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00
Ronald Cron 80b95101a9 psa: Move psa_key_file_id_t definition to crypto_types.h
`psa_key_file_id_t` was defined in `crypto_platform.h` and
not `crypto_types.h` even if it wasn't platform dependent
because back when the PSA Crypto Specification was put
together `crypto_types.h` was meant to contain only types
that were intended to make it to the specification. There
is not such constraint anymore thus move the definition
of `psa_key_file_id_t` to crypto_types.h.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00