Clear some confusion between `X` as the output variable and "X" as a name
given to the accumulator. Previous iterations of the code used the variable
`X` as the accumulator, but now that the accumulator is `W[x_index]`, some
of the comments didn't make sense.
Remove the copy of the initial value of `X` into `W[x_index]`, which was
meaningless: the initial value of an output variable should not, and did
not, matter. `W[x_index]` is later overridden unconditionally to take the
value `RR`.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The link to the DRBG paper points to the March 2007 version, the same as the
original link (rather than the latest version).
The amended Rijndael paper has a two-page "Note on naming" prefix.
Fixes#7193
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
We duplicated ecp.c in the anticipation of heavy refactoring there. This
work has been suspended and the duplication is not useful anymore but
imposes an overhead.
Signed-off-by: Janos Follath <janos.follath@arm.com>
In ecp_new.c mbedtls_ecp_read_key did only check Weierstrass keys. The
behaviour in ecp.c was correct.
This bug has no immediate security impact. (The code with the missing
check wasn't released and we are checking keys at later point.)
After this change ecp.c and ecp_new.c will have a single remaining
difference and unifying them will be more straightforward.
Signed-off-by: Janos Follath <janos.follath@arm.com>
We would like to de-duplicate ecp.c, but ecp_curves.c remains duplicated
and we still want to test for the active variant.
Signed-off-by: Janos Follath <janos.follath@arm.com>
There is a precedent for having bigger and less mature options in
mbedtls_config.h (MBEDTLS_USE_PSA_CRYPTO) for an extended period.
Having this option in mbedtls_config.h is simpler and more robust.
Signed-off-by: Janos Follath <janos.follath@arm.com>
These tests weren't working, because they use CMake and can't pass
options with CFLAGS directly. This could be mitigated by adding a CMake
option, but using config.py is less invasive and it is what we normally
use for setting build options anyway.
Signed-off-by: Janos Follath <janos.follath@arm.com>
Add configuration to enforce minimum size when
generating a RSA key, it's default value is 1024
bits since this the minimum secure value currently
but it can be any value greater than or equal 128
bits. Tests were modifed to accommodate for this
change.
Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
Running clang-16 on mbedtls reports warnings of type "-Wstrict-prototypes".
This patch fixes these warnings by adding void to functions with no
arguments. The generate_test_code.py is modified to insert void into test
functions with no arguments in *.function files.
Signed-off-by: Gowtham Suresh Kumar <gowtham.sureshkumar@arm.com>
