Remove a check in rsa_rsassa_pkcs1_v15_encode() that
is not needed because the same check is performed
earlier. This check was added in #4707.
Signed-off-by: David Horstmann <david.horstmann@arm.com>
Where hashlen was previously ignored when the hash length could be
inferred from an md_alg parameter, the two must now match.
Adapt the existing tests accordingly. Adapt the sample programs accordingly.
This commit does not add any negative testing.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
(This commit is best reviewed using `git show -b` as indentation levels
have changed.)
The documentation already states that the RNG parameter is mandatory,
since PRs #4488 and #4515. There are several families of functions to
consider here:
- private-key operations (sign, decrypt) all call
mbedtls_rsa_private() where this commit adds a non-NULL check;
- encrypt operations need an RNG for masking/padding and already had a
non-NULL check since #4515 (conditional on \p mode before that)
- verify operations no longer take an RNG parameter since #4515
So, after this commit, all RSA functions that accept an RNG will reach a
non-NULL check before the RNG is used.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
Remove padding parameters as mbedtls_rsa_init()
cannot return an error code when padding
parameters are invalid.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
mbedtls_rsa_set_padding() now returns the error
code MBEDTLS_ERR_RSA_INVALID_PADDING when
padding parameters are invalid.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Some padding checks in rsa.c were
erroneously removed in a previous
commit and are restored in this
commit.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
This commit removes the RSA
constants MBEDTLS_RSA_PUBLIC
and MBEDTLS_RSA_PRIVATE because
they are now superfluous given
that the mode parameter has been
removed.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes the mode parameter
from the mbedtls_rsa_rsassa_pss_verify_ext
function. This change is propagated
throughout the codebase.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes the f_rng parameter from
the mbedtls_rsa_rsassa_pss_verify_ext
function. This is in preparation for
the removal of the mode parameter.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes p_rng parameter from the
mbedtls_rsa_rsassa_pss_verify_ext function
in preparation for removal of the mode
parameter.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes the mode parameter
from the mbedtls_rsa_rsassa_pss_verify
function and propagates the change
throughout the process.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes f_rng parameter from
mbedtls_rsa_rsassa_pss_verify function in
preparation of mode parameter removal.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes p_rng parameter from
mbedtls_rsa_rsassa_pss_verify function
as preparation for removing the mode
parameter.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes mode parameter from
mbedtls_rsa_rsassa_pkcs1_v15_verify and
propagates the change throughout the
codebase.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit performs removal of f_rng parameter
from mbedtls_rsa_rsassa_pkcs1_v15_verify
function in preparation for removal of mode
parameter.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes p_rng from
mbedtls_rsa_rsassa_pkcs1_v15_verify function in
preparation of removal of mode parameter.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes mode parameter from
mbedtls_rsa_pkcs1_verify and propagates the
change throughout the codebase.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes p_rng from mbedtls_rsa_pkcs1_verify
since p_rng has no relevance following the removal
of f_rng from this function.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes f_rng parameter from
mbedtls_rsa_pkcs1_verify as a prerequisite
to removing the mode parameter. f_rng no
longer has relevance in this function if
mode is removed.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes the mode param from
mbedtls_rsa_rsassa_pss_sign and propagates
the changes throughout the codebase.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes the mode parameter from
mbedtls_rsa_rsassa_pkcs1_v15_sign and
propagates the change throughout the
codebase.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Commit removes the mode parameter from
mbedtls_rsa_pkcs1_sign and progagates the
change to all relevant parts of the codebase.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Removes mode parameter from
mbedtls_rsa_rsaes_oaep_encrypt and propagates
changes throughout the codebase.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Removal of mode parameter from
mbedtls_rsa_rsaes_pkcs1_v15_encrypt. This commit
propagates the change to all relevant function calls
and tests.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Removal of the mode parameter from
mbedtls_rsa_pkcs1_encrypt function. This change
is propagated throughout the codebase and to
relevant tests.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Remove mode param from mbedtls_rsa_rsaes_pkcs1_v15_decrypt
and also modify and remove relevant tests.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Removing the mode parameter from the mbedtls_rsa_rsaes_oaep_decrypt
function. The change is progagated to all function calls, including in
test suite .function files. Additionally fully removing one test
where the wrong mode was being tested.
Signed-off-by: Tom Daubney <Thomas.Daubney@arm.com>
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
The mode parameter has been removed from the
mbedtls_rsa_pkcs1_decrypt function. The change
has been progagated to all function calls,
including in test suite .function files.
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Fix unused parameter warnings when MBEDTLS_TEST_HOOKS is not enabled.
A few issues were caught by check-names.sh namely:
- mbedtls_error_add was not capitalised.
- mbedtls_test_hook_error_add was being defined multiple times as the
definition was in a header.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
The previous implementation of the error addition interface did not comply
with the invasive testing architecture guidelines. This commit fixes that
by:
- Renaming functions/macros/variables to follow the mbedtls_error_xxx or
mbedtls_test_hook_xxx convention.
- Making mbedtls_test_hook_error_add a global variable that can be set
by the testing code.
- Using a static inline function call, as opposed to macro, to keep
discrepancies between debug and production version to a minimum.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
All occurences of manual error code addition/combination, in `rsa.c`, have
been replaced with the `MBEDTLS_ERR_ADD` macro.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Adds a macro (`MBEDTLS_ERR_ADD`) to add error codes together and check that the
result will not be corrupted. This additional check is only enabled during
testing when `MBEDTLS_TEST_HOOKS` is defined.
Also includes a reference usage example in `rsa.c` where two high-level error
codes could be incorrectly added together under the right conditions. This now
ensures that when this error occurs during testing it will be correctly
reported.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Rename both `rsa_internal.h` and `rsa_internal.c` to more descriptive
names: `rsa_alt_helpers.h` and `rsa_alt_helpers.c`.
Also re-orders `rsa_internal.c` to match the order in `rsa_internal.h`
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Only move `rsa_internal.h` for now to test dependancies. Other internal
headers will be moved in following commits.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
mbedtls_rsa_gen_key() was not freeing the RSA object, and specifically
not freeing the mutex, in some error cases.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
When MBEDTLS_THREADING_C is enabled, RSA code protects the use of the
key with a mutex. mbedtls_rsa_free() frees this mutex by calling
mbedtls_mutex_free(). This does not match the usage of
mbedtls_mutex_free(), which in general can only be done once.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
- removed the check on saltlen > 0 and added tests
positive test cases for this.
- added negative test cases when even saltlen == 0
is not enough. This allowed to uncover an underflow bu
in the slen check (when olen-slen-2 is negative)
- fixed the saltlen check to avoid underflow
- added more test cases where saltlen is the maximum
possible value and one above the maximum possible value
(different hash, different key size)
Signed-off-by: Cédric Meuter <cedric.meuter@gmail.com>
mbedtls_rsa_private() could return the sum of two RSA error codes
instead of a valid error code in some rare circumstances:
* If rsa_prepare_blinding() returned MBEDTLS_ERR_RSA_RNG_FAILED
(indicating a misbehaving or misconfigured RNG).
* If the comparison with the public value failed (typically indicating
a glitch attack).
Make sure not to add two high-level error codes.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
- all positibe test cases were sampled from the CAVP test suite
(SigGenPSS_186-2.txt, SigGenPSS_186-3.txt)
Only kept one representative for each triple (modlen, sha, saltlen)
- two extra test cases were added to cover the maximum salt length
(slen=olen-slen-2 and slen=(olen-slen-2)-1)
- in rsa.c, the salt intermediate buffer was too small to cover cases
where slen > hlen. So reworked the code to generate the salt in the
encoded message directly. This has the advantage to remove a memcpy
and a memset.
Signed-off-by: Cédric Meuter <cedric.meuter@gmail.com>
