The cipher module implements XTS, and the PSA API specifies XTS, but the PSA
implementation does not support XTS. It requires double-size keys, which
psa_crypto does not currently support.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
When MBEDTLS_PSA_CRYPTO_CONFIG is enabled, support an alternative file to
include instead of "psa/crypto_config.h", and an additional file to include
after it. This follows the model of the existing MBEDTLS_{,USER_}CONFIG_FILE.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Define the dependency symbols PSA_WANT_ALG_ECDSA_ANY and
PSA_WANT_ALG_RSA_PKCS1V15_SIGN_RAW as de facto synonyms of
PSA_WANT_ALG_ECDSA and PSA_WANT_ALG_RSA_PKCS1V15_SIGN respectively: if
either one is requested, the other is set.
This makes it easier to systematically determine the dependencies of
an algorithm.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Add missing PSA_WANT_CCM/GCM/CMAC. This completes
the set of PSA_WANT config options given the
current support of PSA crypto in Mbed TLS.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Fix SEC to SECP as the curve name. This fixes failing tests that
verified the config option was working.
Signed-off-by: David Brown <david.brown@linaro.org>
Use the names as described in
`docs/proposed/psa-conditional-inclusion-c.md which use a transform
like: SECP256R1 -> SECP_R1_256. The CURVE25519 and CURVE448 become
MONTGOMERY_255 and MONTGOMERY_448.
Signed-off-by: David Brown <david.brown@linaro.org>
For each curve defined MBEDTLS_ECP_DP_xxx_ENABLED, we have a
corrsponding PSA config define PSA_WANT_ECC_xxx. Along with that is a
value MBEDTLS_PSA_ACCEL_ECC_xxx which can be used to allow HW
acceleration of that particular curve.
If the PSA config requests an unaccelerated curve, the corresponding
MBEDTLS_PSA_BUILTIN_ECC_xxx will also be defined.
This commit defines these for all curves currently defined, with the
defines working in either direction, depending on whether
MBEDTLS_PSA_CRYPTO_CONFIG is defined.
Signed-off-by: David Brown <david.brown@linaro.org>
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>
With the else branch commented out, both lines are unnecessary. We
could check for the invalid configuration in the future, once tests were
made to exclude this combination.
Signed-off-by: David Brown <david.brown@linaro.org>
There is no PSA ALG_ECB, only ALG_ECB_NO_PADDING. Fix one incorrect
declaration, and remove another that is just redundant.
Signed-off-by: David Brown <david.brown@linaro.org>
Only define MBEDTLS_CIPHER_MODE_CBC if one of the CBC modes is requested
and everything isn't covered by an accelerated version. This keeps this
from being defined in cases where everything needed would be
accelerated.
Signed-off-by: David Brown <david.brown@linaro.org>
Try to make these definitions clearer given the complexity of the
mapping between the PSA config options and the MBEDTLS ones.
Signed-off-by: David Brown <david.brown@linaro.org>
If any of the software block ciphers are selected, define an internal
macro to indicate this. This eliminates some redundancy that needs to
check for this.
Signed-off-by: David Brown <david.brown@linaro.org>
Add checks for PSA_WANT_KEY_TYPE_CHACHA20, both with and without
MBEDTLS_PSA_CRYPTO_CONFIG. This only adds support for the ciphers
itself, presumably as a stream cipher (and not yet AEAD).
Signed-off-by: David Brown <david.brown@linaro.org>
Even if there is an accelerated version of a (block) key type, enable
the SW implementation if there are block modes that don't have
acceleration.
Signed-off-by: David Brown <david.brown@linaro.org>
Add additional ifdef checks in the PSA config to detect when an
algorithm is entirely implemented in hardware. If there is any
combination of cipher and padding type that is not supported by the HW
acceleration, enable the SW acceleration.
Signed-off-by: David Brown <david.brown@linaro.org>
Ensure that the builtin definitions are defined when selected by the
traditional configuration options.
Signed-off-by: David Brown <david.brown@linaro.org>
For the new features conditionalized on MBEDTLS_PSA_ACCEL_..., define a
correlated MBEDTLS_PSA_BUILTIN_... if it is not defined. This prevents
check_names from considering these new defines as typos.
Signed-off-by: David Brown <david.brown@linaro.org>
Add support for supported block modes using the PSA crypto config.
These are mapped to Mbed TLS config options as best as possible.
Signed-off-by: David Brown <david.brown@linaro.org>
