It was only used in test_suite_pk which was fixed to no longer compute
hashes in a temporary buffer.
Also, it's not entirely clear is this macro was really a good idea:
perhaps it's better for each user to have an explicit #if
defined(MBEDTSL_USE_PSA_CRYPTO) and use either MBEDTLS_MD_MAX_SIZE or
PSA_HASH_MAX_SIZE in each branch of that #if.
So, removing it for the time being.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
While at it, also fix buffer size for functions that already depend on
USE_PSA: it should be PSA_HASH_MAX_SIZE for functions that always use
PSA, and the new macro MBEDTLS_USE_PSA_MD_MAX_SIZE for functions that
use it or not depending on USE_PSA.
The only case where MBEDTLS_MD_MAX_SIZE is OK is when the function
always uses MD - currently this is the case with
pk_sign_verify_restart() as it is incompatible with USE_PSA anyway.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
For now in an internal header as it's the safest option and that way we
can change whenever we want.
Later on if we think the macros can be useful to applications as well then we
can move them to a public location.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
