- Support for PSA_CRYPTO_CLIENT without PSA_CRYPTO_C is out of scope for
now but might be added later (the architecture supports that).
- While we're using a void pointer for md_ctx, we don't need a union
here; the union will be useful only if & when we remove the indirection.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This will be used in the next commit.
While at it, move driver initialization before RNG init - this will be
handy when the entropy module wants to use drivers for hashes.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
For multi-part operations, we want to make the decision to use PSA or
not only once, during setup(), and remember it afterwards. This supports
the introduction, in the next few commits, of a dynamic component to
that decision: has the PSA driver sub-system been initialized yet?
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
When MBEDTLS_MD_xxx_VIA_PSA is enabled (by mbdetls/md.h), route calls to xxx
over PSA rather than through the built-in implementation.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
These new symbols will allow code to call the md module and benefit from PSA
accelerator drivers. Code must use MBEDTLS_MD_CAN_xxx instead of
MBEDTLS_xxx_C to check for support for a particular algorithm.
This commit only defines the symbols. Subsequent commits will implement
those symbols in the md module, and in users of the md module.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
When passed an empty OID, mbedtls_oid_get_numeric_string would read one
byte from the zero-sized buffer and return an error code that depends on
its value. This is demonstrated by the test suite changes, which
check that an OID with length zero and an invalid buffer pointer does
not cause Mbed TLS to segfault.
Also check that second and subsequent subidentifiers are terminated, and
add a test case for that. Furthermore, stop relying on integer division
by 40, use the same loop for both the first and subsequent
subidentifiers, and add additional tests.
Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
This commit introduce a auxiliary function to zeroize
the cache entry, especially the session structure. The
function is called wherever we need to free the entry.
Signed-off-by: Pengyu Lv <pengyu.lv@arm.com>
