Fix a null pointer dereference in mbedtls_mpi_exp_mod(X, A, N, E, _RR) when
A is the value 0 represented with 0 limbs.
Make the code a little more robust against similar bugs.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Test both 0 represented with 0 limbs ("0 (null)") and 0 represented
with 1 limb ("0 (1 limb)"), because occasionally there are bugs with
0-limb bignums and occasionally there are bugs with removing leading
zero limbs.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
mbedtls_mpi_exp_mod can be called in three ways regarding the speed-up
parameter _RR: null (unused), zero (will be updated), nonzero (will be
used). Systematically test all three.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Remove the RR parameter to the mbedtls_mpi_exp_mod test function.
It was never used in the test data, so there is no loss of functionality.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Test mbedtls_mpi_safe_cond_assign() and mbedtls_mpi_safe_cond_swap()
with their "unsafe" counterparts mbedtls_mpi_copy() and
mbedtls_mpi_swap(). This way we don't need to repeat the coverage of
test cases.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Similarly to "Overhaul testing of mbedtls_mpi_copy", simplify the code
to test mbedtls_mpi_swap to have just one function for distinct MPIs
and one function for swapping an MPI with itself, covering all cases
of size (0, 1, >1) and sign (>0, <0).
The test cases are exactly the same as for mbedtls_mpi_copy with the
following replacements:
* `Copy` -> `Swap`
* ` to ` -> ` with `
* `_copy` -> `_swap`
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Replace the two test functions mbedtls_mpi_copy_sint (supporting signed
inputs but always with exactly one limb) and mbedtls_mpi_copy_binary
(supporting arbitrary-sized inputs but not negative inputs) by a single
function that supports both arbitrary-sized inputs and arbitrary-signed
inputs. This will allows testing combinations like negative source and
zero-sized destination.
Also generalize mpi_copy_self to support arbitrary inputs.
Generate a new list of test cases systematically enumerating all
possibilities among various categories: zero with 0 or 1 limb, negative or
positive with 1 limb, negative or positive with >1 limb. I used the
following Perl script:
```
sub rhs { $_ = $_[0]; s/bead/beef/; s/ca5cadedb01dfaceacc01ade/face1e55ca11ab1ecab005e5/; $_ }
%v = (
"zero (null)" => "",
"zero (1 limb)" => "0",
"small positive" => "bead",
"large positive" => "ca5cadedb01dfaceacc01ade",
"small negative" => "-bead",
"large negative" => "-ca5cadedb01dfaceacc01ade",
);
foreach $s (sort keys %v) {
foreach $d (sort keys %v) {
printf "Copy %s to %s\nmbedtls_mpi_copy:\"%s\":\"%s\"\n\n",
$s, $d, $v{$s}, rhs($v{$d});
}
}
foreach $s (sort keys %v) {
printf "Copy self: %s\nmpi_copy_self:\"%s\"\n\n", $s, $v{$s};
}
```
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This is mostly to look for cases where the sign bit may have been left at 0
after zerozing memory, or a value of 0 with the sign bit set to -11. Both of
these mostly work fine, so they can go otherwise undetected by unit tests,
but they can break when certain combinations of functions are used.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Replace calls to mbedtls_mpi_read_string() with a wrapper
mbedtls_test_read_mpi() when reading test data except for the purpose
of testing mbedtls_mpi_read_string() itself. The wrapper lets the test
data control precisely how many limbs the constructed MPI has.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This test helper reads an MPI from a string and guarantees control over the
number of limbs of the MPI, allowing test cases to construct values with or
without leading zeros, including 0 with 0 limbs.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
* development_2.x:
Reword changelog - Test Resource Leak
Fix fd range for select on Windows
Refactor file descriptor checks into a common function
Update changelog formatting - Missing Free Context
Update changelog formatting Missing Free Context
Update changelog formatting - Missing Free Context
Changelog entry for Free Context in test_suite_aes fix
Free context in at the end of aes_crypt_xts_size()
Fix copypasta in test data
Use UNUSED wherever applicable in derive_input tests
Fix missing state check for tls12_prf output
Key derivation: add test cases where the secret is missing
Add bad-workflow key derivation tests
More explicit names for some bad-workflow key derivation tests
in file tests/suite/test_suite_aes.function, aes_crypt_xts_size()
did not free the context upon the function exit.
The function now frees the context on exit.
Fixes#4176
Signed-off-by: JoeSubbiani <Joe.Subbiani@arm.com>
Add HKDF tests where the sequence of inputs differs from the nominal
case: missing step, duplicate step, step out of order, or invalid step.
There were already similar tests for TLS 1.2 PRF. Add one with a key
agreement which has slightly different code.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
There was already a test case for 0 but with a non-empty representation
(X->n == 1). Add a test case with X->n == 0 (freshly initialized mpi).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Do more iterations with small values. This makes it more likely that a
mistake on bounds will be detected.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Slightly simplify is_significantly_above_a_power_of_2() to make it
easier to understand:
* Remove the explicit negative answer for x <= 4. The only functional
difference this makes is that is_significantly_above_a_power_of_2(3)
is now true.
* Shift the most significant bit of x to position 8 rather than 15.
This makes the final comparison easier to explain.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Add unit tests for mbedtls_mpi_fill_random() and mbedtls_mpi_random()
when the resulting MPI object previously had a nonzero value. I wrote
those to catch a bug that I introduced during the development of
mbedtls_mpi_random() (but does not appear in a committed version).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
mbedtls_mpi_random() uses mbedtls_mpi_cmp_mpi_ct(), which requires its
two arguments to have the same storage size. This was not the case
when the upper bound passed to mbedtls_mpi_random() had leading zero
limbs.
Fix this by forcing the result MPI to the desired size. Since this is
not what mbedtls_mpi_fill_random() does, don't call it from
mbedtls_mpi_random(), but instead call a new auxiliary function.
Add tests to cover this and other conditions with varying sizes for
the two arguments.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Instead of generating blinding values and keys in a not-quite-uniform way
(https://github.com/ARMmbed/mbedtls/issues/4245) with copy-pasted code,
use mbedtls_mpi_random().
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
mbedtls_dhm_make_params() with x_size != size of P is not likely to be
useful, but it's supported, so test it.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Repeat a few tests that use random data. This way the code is
exercised with a few different random values.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Improve the validation of the output from mbedtls_dhm_make_params:
* Test that the output in the byte buffer matches the value in the
context structure.
* Test that the calculated values are in the desired range.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Since mbedtls_mpi_random() is not specific to ECC code, move it from
the ECP module to the bignum module.
This increases the code size in builds without short Weierstrass
curves (including builds without ECC at all) that do not optimize out
unused functions.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Rename mbedtls_ecp_gen_privkey_sw to mbedtls_mpi_random since it has
no particular connection to elliptic curves beyond the fact that its
operation is defined by the deterministic ECDSA specification. This is
a generic function that generates a random MPI between 1 inclusive and
N exclusive.
Slightly generalize the function to accept a different lower bound,
which adds a negligible amount of complexity.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Add unit tests for private key generation on short Weierstrass curves.
These tests validate that the result is within the desired range.
Additionally, they validate that after performing many iterations, the
range is covered to an acceptable extent: for tiny ranges, all values
must be reached; for larger ranges, all value bits must reach both 0
and 1.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Don't calculate the bit-size of the initially generated random number.
This is not necessary to reach the desired distribution of private
keys, and creates a (tiny) side channel opportunity.
This changes the way the result is derived from the random number, but
does not affect the resulting distribution.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The library rejected an RNG input of all-bits-zero, which led to the
key 2^{254} (for Curve25519) having a 31/32 chance of being generated
compared to other keys. This had no practical impact because the
probability of non-compliance was 2^{-256}, but needlessly
complicated the code.
The exception was added in 98e28a74e3 to
avoid the case where b - 1 wraps because b is 0. Instead, change the
comparison code to avoid calculating b - 1.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Test the exact output from known RNG input. This is overly
constraining, but ensures that the code has good properties.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
If a fallback is not explicitly configured in the
mbedtls_test_rnd_buf_info structure, fail after the buffer is
exhausted.
There is no intended behavior change in this commit: all existing uses
of mbedtls_test_rnd_buffer_rand() have been updated to set
mbedtls_test_rnd_std_rand as the fallback.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION shifts the location
value (location << 8). This can go outside the range of a 32-bit int
if the location value is above 2^23 as is the case here. Asan
rightfully complained about it. Make the value unsigned to avoid the
integer overflow.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Test keys with various persistence levels, enumerated from the
metadata tests.
For read-only keys, do not attempt to create or destroy the key
through the API, only to read a key that has been injected into
storage directly through filesystem access.
Do not test keys with a non-default location, since they require a
driver and we do not yet have a dependency mechanism to require the
presence of a driver for a specific location value.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Attempting to create a key with an invalid location or with read-only
persistence must be rejected.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The call to `tests/scripts/generate_psa_tests.py` added by the commit
"generate_psa_tests.py: allow generating each file independently"
assumed that the `check` function supports multiple file names, but in
fact it does not do so. When `generate_psa_tests.py` started generating
more than one file, `check-generated-files.sh` did not detect changes to
files other than the first one listed by `generate_psa_tests.py --list`.
Fix this: change `check` to support either a single directory (with
detection of added/removed files) or a list of files (which is assumed
to be static).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
When generating expressions to construct test case data, there can be
duplicate values, for example if a value of the form C(A) is present
as such in test_suite_psa_crypto_metadata.data and also constructed by
enumerating the argument A for the constructor C. Eliminate such
duplicates in generate_expressions.
This commit removes many test cases that were exact duplicates (and
were near-duplicates differing only in whitespace before the
whitespace normalization).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
In macro_collector.py, base InputsForTest on PSAMacroEnumerator rather
than PSAMacroCollector. It didn't make much sense to use
PSAMacroCollector anymore since InputsForTest didn't use anything
other than the constructor.
psa_generate_tests now generates arguments for more macros.
In particular, it now collects macro arguments from
test_suite_psa_crypto_metadata. Algorithms with parameters are now
supported.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
First build a list of all keys, then construct all the corresponding
test cases. This allows all required information to be obtained in
one go, which is a significant performance gain as the information
includes numerical values obtained by compiling a C program.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
In generate_psa_tests, use InputsForTest rather than PSAMacroCollector
to gather values. This way, the enumeration of values to test includes
values used in metadata tests in addition to constructors parsed from
header files. This allows greater coverage of values built from
constructors with arguments. This doesn't make a difference yet, but
it will once algorithm constructors with arguments are supported in
generate_psa_tests.
Make the injection of numerical values optional. They are useful for
test_psa_constant_names, so keep them there. Don't use them for
not-supported tests: they might make sense, but the current code
wouldn't work since it doesn't know how to make up fake key material
or what dependencies to generate. Don't use them for storage tests:
they only make sense for supported values.
Don't inject 'PSA_SUCCESS': that's superfluous.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
On space-constrained platforms, it is a useful configuration to be able
to import/export and perform RSA key pair operations, but to exclude RSA
key generation, potentially saving flash space. It is not possible to
express this with the PSA_WANT_ configuration system at the present
time. However, in previous versions of Mbed TLS (v2.24.0 and earlier) it
was possible to configure a software PSA implementation which was
capable of making RSA signatures but not capable of generating RSA keys.
To do this, one unset MBEDTLS_GENPRIME.
Since the addition of MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR, this
expressivity was lost. Expressing that you wanted to work with RSA key
pairs forced you to include the ability to generate key pairs as well.
Change psa_crypto_rsa.c to only call mbedtls_rsa_gen_key() if
MBEDTLS_GENPRIME is also set. This restores the configuration behavior
present in Mbed TLS v2.24.0 and earlier versions.
It left as a future exercise to add the ability to PSA to be able to
express a desire for a software or accelerator configuration that
includes RSA key pair operations, like signature, but excludes key pair
generation.
Without this change, linker errors will occur when attempts to call,
which doesn't exist when MBEDTLS_GENPRIME is unset.
psa_crypto_rsa.c.obj: in function `rsa_generate_key':
psa_crypto_rsa.c:320: undefined reference to `mbedtls_rsa_gen_key'
Fixes#4512
Signed-off-by: Jaeden Amero <jaeden.amero@arm.com>
The test "PSA generate key: RSA, 1024 bits, good, encrypt (OAEP
SHA-256)" had a dependency on MBEDTLS_GENPRIME, but this was not listed
in the dependencies. Add MBEDTLS_GENPRIME to the test's dependencies to
ensure it has what it needs to run.
Signed-off-by: Jaeden Amero <jaeden.amero@arm.com>
Fix a pointer mismatch when int32_t is not int, for example on Cortex-M where
in32_t is long int. Fix#4530
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
To avoid the MAC tests from being run when only part of the driver
wrappers (not including MAC) are being configured for test.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Update the mbedtls_test_psa_exercise_key to handle and use
PSA_KEY_USAGE_SIGN_MESSAGE and PSA_KEY_USAGE_VERIFY_MESSAGE key policies.
Add new tests for PSA_KEY_USAGE_SIGN_MESSAGE and PSA_KEY_USAGE_VERIFY_MESSAGE
policies.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
Modify function and test case names that testing psa_sign_hash and
psa_verify_hash funtions to be less confusing with the newly introduced
function and test case names which tests psa_sign_message and
psa_verify_message functions.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
The reference output data was created with cryptodome for RSA algorithms and
python-ecdsa for ECDSA algorithms.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
Modify function and test case names that testing psa_sign_hash and
psa_verify_hash funtions to be less confusing with the newly introduced
function and test case names which tests psa_sign_message and
psa_verify_message functions.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
This configuration file was useful in the early days of PSA crypto
development. It stopped becoming relevant when MBEDTLS_PSA_CRYPTO_C entered
the default configuration. Remove it: better late than never.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Move the key buffer size calculation code under
tests to avoid check-names.sh to complain about
"likely macros with typos".
This removes the calculation of key buffer
sizes for the test driver from the wrapper based on
static size data. But the code is still there in test
code to be used when we go back to work on the
generation of the driver wrapper.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Add implementation for MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS
Merging as it has been ready for four days now and I prefer not having to go through other rebases especially given the coming change of scope of development (3.0 rather than 2.2x).
Improve comments explaining error code checking, fix incorrect comments
and make a small formatting fix.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Python 2 is no longer officially supported, but we were still using it
to generate test suite .c files from .function files when using GNU
make. Switch to looking for Python 3.
This change was done for CMake a long time ago.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
MSVC doesn't like multiple compilation units with the same name.
(conflict between cipher.c in the library and in the test driver folder)
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Leverage the fact that the get_builtin_key entrypoint returns a key's
attributes, such that a proper size for the builtin key's buffer can
be calculated through the driver's get_key_buffer_size hook.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
The macro always meant 'location', but was mistakenly named 'lifetime'.
Naming it location instead makes much more sense, and drives home the
conceptual differences between location and lifetime values.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Instead of the full attributes struct, it now only takes/returns what it
actually needs to.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Builtin key support for the test driver is always compiled in, and no
longer guarded by MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS.
Parsing the key slot from the buffer by cast and assign instead of memcmp.
For exporting keys, the test driver no longer reaches into the key
identifier in order to check whether a key is builtin, but rather
assumes so based on the key buffer length. It's the driver's
responsibility to be able to detect the key material it returned as part
of the get_builtin_key operation.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Move to its own file in the test tree, to simplify platform vendors
providing their own implementation.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
As part of test_psa_crypto_drivers, define a builtin symmetric
plus an ECC key on the test driver lifetime.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
According to the design in psa-driver-interface.md. Compiles without
issue in test_psa_crypto_drivers.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Replace all occurences of error code addition in the library with the new
MBEDTLS_ERROR_ADD macro.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Improve documentation by:
- Fixing off by one errors in binary representations of error codes.
- Clarifying combinations of zero.
- Linking references to variables/macros via doxygen.
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>
Although not commonly done, it should be possible to add error codes
together even if the high level error code is equal to zero.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Fix builds where `MBEDTLS_ERROR_C` is not defined but `MBEDTLS_TEST_HOOKS`
is defined. This was previously causing undefined reference errors in
these builds.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Previously an error message was printed and then the test manually exited
via `mbedtls_exit( 1 )`. This commit includes a rebase onto:
540320bf7b so that `mbedtls_test_fail` can
be used instead to properly fail tests (and report them as such).
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Add new checks and specific error messages to `mbedtls_test_err_add_check`.
This should now catch all types of error when combining error codes and
provide a specific error message to explain what occured.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
`error.c` and error.h are the more logical place to keep this code and it
prevents issues with building `common.c` and conflicts with other projects
that use mbedtls (such as mbedOS).
`error.c` has been automatically generated by first adding the code to
`error.fmt` and then running `./scripts/generate_errors.pl`.
Also add parenthesis to the addition in `MBEDTLS_ERR_ADD`.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Fix building by adding `common.c` to the build scripts (both make and Cmake).
Also reworks the hook function pointer (also renamed to `err_add_hook`) to be
a static local to `common.c` with a setter function to set the pointer to a
checking function.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
`error.c` is a file generated from `error.h` and thus cannot contain the code
that was previously added. This commit fixes that issue by moving the
`MBEDTLS_ERR_ADD` macro and associated function and function pointer into
`common.h` and `common.c`.
Also fix a typo in `tests/include/test/helpers.h` where tabs were accidentally
used instead of spaces.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
`mbedtls_test_err_add_check` was previously incorrectly throwing an error if
both error codes were correct and valid pure error codes. This change fixes
that behaviour to correctly throw errors when invalid combinations are found.
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>
Corresponds better to the validation done in other modules of PSA Crypto.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
The aead_encrypt and aead_decrypt are lightly
simplified and tweaked versions of test_suite_psa_crypto
test functions with the same names.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Add library/*.h to the list of files scanned for enums in
list-enum-consts.sh, consistent with the changes made to
list-macros.sh.
This is needed to ensure that check-names.sh passes for the MPS
trace enums.
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This was a mistake, there's no reason for the dependencies to be
commented out. The dependencies on PSA_WANT_ALG_EDDSA aren't actually
necessary at the moment, but they might be in certain configurations
if some macros are simplified to save code size.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Write a simple unit test for mbedtls_ecp_muladd().
Add just one pair of test cases. #2 fails since PR #3512. Thanks to
Philippe Antoine (catenacyber) for the test case, found by ecfuzzer.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Fix expected error code when importing a persistent key or
registering a key with an invalid key identifier:
PSA_ERROR_INVALID_ARGUMENT instead of PSA_ERROR_INVALID_HANDLE.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
An SSL client can be configured to insist on a minimum size for the
Diffie-Hellman (DHM) parameters sent by the server. Add several test
cases where the server sends parameters with exactly the minimum
size (must be accepted) or parameters that are one bit too short (must
be rejected). Make sure that there are test cases both where the
boundary is byte-aligned and where it isn't.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Our interoperability tests fail with a recent OpenSSL server. The
reason is that they force 1024-bit Diffie-Hellman parameters, which
recent OpenSSL (e.g. 1.1.1f on Ubuntu 20.04) reject:
```
140072814650688:error:1408518A:SSL routines:ssl3_ctx_ctrl:dh key too small:../ssl/s3_lib.c:3782:
```
We've been passing custom DH parameters since
6195767554 because OpenSSL <=1.0.2a
requires it. This is only concerns the version we use as
OPENSSL_LEGACY. So only use custom DH parameters for that version. In
compat.sh, use it based on the observed version of $OPENSSL_CMD.
This way, ssl-opt.sh and compat.sh work (barring other issues) for all
our reference versions of OpenSSL as well as for a modern system OpenSSL.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Add negative tests checking that psa_copy_key()
returns PSA_ERROR_INVALID_ARGUMENT when passed in
an invalid key identifier or key lifetime for the
target key.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit adds a test exercising the reader in a random way
and comparing the outcomes against what we expect based on the
abstract model of the reader from the producer's and consumer's
perspective.
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
This commit adds an MPS unit test suite `test_suite_mps` which will
subsequently be populated with unit tests for all components of MPS.
As a start, a test case
```
mbedtls_mps_reader_no_pausing_single_step_single_round()
```
is added which exercises the most basic usage of the MPS reader
component; see the test case description for more details.
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
Add the test keys from RFC 8032 (§7.1 Ed25519 "TEST 1", §7.4 Ed448 "Blank").
This replaces the generic byte-sized data used for unknown key types
which no longer works now that Ed25519 is considered to have 255 bits.
Re-generate the automatically generated test data accordingly.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Define algorithms for PureEdDSA and for HashEdDSA, the EdDSA variants
defined by RFC 8032.
The encoding for HashEdDSA needs to encode the hash algorithm so that
the hash can be calculated by passing PSA_ALG_SIGN_GET_HASH(sig_alg)
to psa_hash_compute() or psa_hash_setup(). As a consequence,
Ed25519ph (using SHA-512) and Ed448ph (using SHAKE256) need to have
different algorithm encodings (the key is enough to tell them apart,
but it is not known while hashing). Another consequence is that the
API needs to recognize the Ed448 prehash (64 bytes of SHAKE256 output)
as a hash algorithm.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Add an elliptic curve family for the twisted Edwards curves
Edwards25519 and Edwards448 ("Goldilocks"). As with Montgomery curves,
since these are the only two curves in common use, the family has a
generic name.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Remove cipher_generate_iv driver entry point as there
is no known use case to delegate this to a driver.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Add cipher accelerator compilation flags to
test_psa_crypto_drivers() all.sh component. The flags
are not necessary currently but may become.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Test cipher operations by a transparent driver in all.sh
test_psa_crypto_config_basic and
test_psa_crypto_drivers components.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
As per drivers, pass to the Mbed TLS implementation of
the cipher multi-part operation its operation context
and not the PSA operation context.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Make use of psa_cipher_xyz_internal() functions to
simplify the transparent test driver code and
extend the algorithms it supports to all algorithms
supported by the MbedTLS library.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Given the PSA_WANT_* config options added lately,
update set_psa_test_dependencies.py and run it
on test_suite_psa_crypto*.data files but the SE
and generated ones.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Fine tune handling of policy negative tests when
setting automatically PSA crypto unit tests
dependencies.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
For the time being, it is not possible to determine
the size of ECC keys from the arguments of all test
cases thus treat them as dependencies that are not
systematic. Such dependencies are not generated nor
deleted by set_psa_test_dependencies.py.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Fix likely harmless undefined behavior in cipher tests pointed out by
UBSan with recent compilers (e.g. Clang 10). When the complete output
is empty, the output buffer is NULL. Adding an integer to a null
pointer is undefined behavior even when the integer is 0, so make a
special case for that.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Replace MBEDTLS_* config options for which there is
an associated PSA_WANT_* to the PSA_WANT_* one. That
way the tests are also run when the dependency is
provided by a driver.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Update expected return values of psa_get_key_attributes(),
psa_export_key() and other key api(s) to PSA_ERROR_INVALID_HANDLE
for invalid key.
Signed-off-by: Maulik Patel <Maulik.Patel@arm.com>
Generate test cases for all algorithms without parameters. Only the encoding
of the algorithm in the key metadata is covered: the test keys are not of a
type that permits the algorithm to be used in an operation.
This commit only covers algorithms without parameters. A subsequent commit
will generate algorithms with parameters.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Update this based on the output of the generator script. The Brainpool
curves are now supported, since they are spelled properly in the config.
Signed-off-by: David Brown <david.brown@linaro.org>
The commit
commit dcdde59c6f
Author: David Brown <david.brown@linaro.org>
Date: Tue Feb 23 15:48:13 2021 -0700
tests: psa: Change Elliptic curve defines to PSA names
when rebased on
commit bb9cbc7a23
Author: Ronald Cron <ronald.cron@arm.com>
Date: Thu Mar 4 17:09:00 2021 +0100
psa: ecdsa: Prefer NOT_SUPPORTED error code
had an incorrect merge conflict resolution. Correct this, allowing the
test "PSA sign: invalid algorithm for ECC key" to pass again.
Signed-off-by: David Brown <david.brown@linaro.org>
Generate test cases for all key types. These test cases cover the key
representation (checked with export) and the encoding of the key type and
the bit-size.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Start generating storage format test cases. This commit introduces two test
data files: test_suite_psa_crypto_storage_format.v0.data for reading keys in
storage format version 0 (the current version at this time), and
test_suite_psa_crypto_storage_format.current.data for saving keys in the
current format (version 0 at this time).
This commit kicks off the test case generation with test cases to exercise
the encoding of usage flags. Subsequent commits will cover other aspects of
keys.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Save tests are for forward compatibility: import a key in the current format
and check that it has the expected storage format so that future versions
will still be able to read it.
Read tests are for backward compatibility: read a key in the format of a
past version (injected into storage) and check that this version can use it.
Exercise the key unless it is meant to test metadata storage only.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Split out the code that enumerates constructors of a PSA crypto type
from the code used to populate the list of constructors for the
specific purpose of testing psa_constant_names.
This commit adds some documentation but otherwise strives to minimize
code changes.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Generating all files all the time makes debugging one specific target
harder. So support generating a selection of targets only.
As a bonus, it is now more apparent what files this script generates,
and check-generated-files.sh takes advantage of it.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Use separate classes for information gathering, for each kind of test
generation (currently just one: not-supported), and for writing output
files.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Now that PSA crypto config supports the new PSA_WANT_ECC_xxx defines,
change the psa-specific test suites to use these new names.
Signed-off-by: David Brown <david.brown@linaro.org>
Printf could potentially produce 2 64 bit numbers here when there is
only space for one, thus causing a buffer overflow. This was caught by
the new warning flags.
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
Test hash algorithm functions when called through a transparent
driver in all.sh test_psa_crypto_config_basic and
test_psa_crypto_drivers components.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
When ECDSA is not supported by the library, prefer
to return NOT_SUPPORTED than INVALID_ARGUMENT when
asked for an ECDSA signature.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Move the check that ECDSA is supported from the
caller of the function responsible for Mbed TLS
ECDSA signatures to this function, namely
mbedtls_psa_ecdsa_sign_hash().
This makes the caller code more readable and is
more aligned with what is expected from a
sign_hash() PSA driver entry point.
Add a negative test case where a deterministic
ECDSA signature is requested while the library
does not support deterministic ECDSA.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Reworked the validation of MAC algorithm with the used key type by
introducing psa_mac_key_can_do, which guarantees that PSA_MAC_LENGTH can
be called successfully after validation of the algorithm and key type.
This means psa_get_mac_output_length is no longer required.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
Marked dirty memory ends up in the result buffer after encoding (due to
the input having been marked dirty), and then the final comparison
to make sure that we got what we expected was triggering the constant
flow checker.
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
Fix sloppy wording around stricly less-than vs less or equal in
comments. Also fix an off-by-one error in a comparison which led to
calling setrlimit if the limit was exactly the minimum required for
the test, which was unnecessary but harmless.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
mbedtls_net_poll() and mbedtls_net_recv_timeout() rely on select(),
which represents sets of file descriptors through the fd_set type.
This type cannot hold file descriptors larger than FD_SETSIZE. Make
sure that these functions identify this failure code.
Without a proper range check of the file descriptor in the
mbedtls_net_xxx function, this test fails when running with UBSan:
```
net_poll beyond FD_SETSIZE ........................................ source/library/net_sockets.c:482:9: runtime error: index 16 out of bounds for type '__fd_mask [16]'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior source/library/net_sockets.c:482:9 in
```
This is a non-regression test for
https://github.com/ARMmbed/mbedtls/issues/4169 .
The implementation of this test is specific to Unix-like platforms.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
A place to put tests for the net_sockets module (MBEDTLS_NET_C feature).
Start with a context smoke test.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The primary goal of this commit is to fix various comments where
`clang -Wdocumentation` identified a discrepancy between the actual
function parameters and the documented parameters. The discrepancies
were due to copypasta, formatting issues or documentation that had
diverged from the implementation.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
ARRAY_LENGTH has a portable but unsafe implementation, and a
non-portable implementation that causes a compile-time error if the
macro is accidentally used on a pointer.
The safety check was only implemented for __GCC__-defining compilers,
but the part that triggered the compile-time error was always used. It
turns out that this part triggers a build warning with MSVC (at least
with some versions: observed with Visual Studio 2013).
```
C:\builds\workspace\mbed-tls-pr-head_PR-4141-head\src\tests\src\psa_crypto_helpers.c(52): error C2220: warning treated as error - no 'object' file generated [C:\builds\workspace\mbed-tls-pr-head_PR-4141-head\src\mbedtls_test.vcxproj]
C:\builds\workspace\mbed-tls-pr-head_PR-4141-head\src\tests\src\psa_crypto_helpers.c(52): warning C4116: unnamed type definition in parentheses [C:\builds\workspace\mbed-tls-pr-head_PR-4141-head\src\mbedtls_test.vcxproj]
```
Since a compile-time error is never triggered when the compile-time
check for the argument type is not implemented, just use the unsafe
macro directly when there's no safety check.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This ensures that test cases won't leave persistent files behind even
on failure, provided they use TEST_USES_KEY_ID(). Test cases that
don't use this macro are unaffected.
Tests that use PSA_DONE() midway and expect persistent keys to survive
must use PSA_SESSION_DONE() instead.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Merge the two identical definitions of TEST_USES_KEY_ID and
mbedtls_test_psa_purge_key_storage from
test_suite_psa_crypto_slot_management.function and
test_suite_psa_crypto_se_driver_hal.function into a single copy in
common test code so that it can be used in all test suites.
No semantic change.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Persistent storage common code from
test_suite_psa_crypto_slot_management.function had been duplicated in
test_suite_psa_crypto_se_driver_hal.function and the copy had slightly
diverged. Re-align the copy in preparation from moving the code to a
common module and using that sole copy in both test suites.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
mbedtls_test_fail does not copy the failure explanation string, so
passing a string on the stack doesn't work. This fixes a garbage
message that would appear if a test triggered a non-implemented code
path.
More generally, just use TEST_ASSERT instead of explicitly calling
mbedtls_test_fail, since we aren't playing any tricks with the error
location.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Shuffle the logic in mbedtls_test_psa_exported_key_sanity_check()
somewhat. The resulting behavior changes are:
* Always check the exported length against PSA_EXPORT_KEY_OUTPUT_SIZE,
even for unstructured key types.
* Always complain if a key type is not explicitly covered, not just
for public keys.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The const-ness has to be cast away when calling mbedtls_asn1_xxx
parsing functions. This is a known flaw in the mbedtls API
(https://github.com/ARMmbed/mbedtls/issues/803).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Remove a conditional imbrication level. Get rid of some minor overhead
for ECC public keys dating back from when they had ASN.1 wrapping.
No behavior change.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Move mbedtls_test_psa_exercise_key() (formerly exercise_key()) and
related functions to its own module. Export the few auxiliary
functions that are also called directly.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
exercise_export_key() exports the key and does sanity checks on the
result. Here we've already just exported the key, so just run the
sanity checks.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Rename functions to mbedtls_test_psa_xxx if they're going to be
exported. Declare functions as static if they're aren't meant to be
called directly from test code.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
These tests validate that an entropy object can be reused and that
calling mbedtls_entropy_free() twice is ok.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
These tests are trivial except when compiling with MBEDTLS_THREADING_C
and a mutex implementation that are picky about matching each
mbedtls_mutex_init() with exactly one mbedtls_mutex_free().
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Document the usage inside the library, and relate it with how it's
additionally used in the test code.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Subtract the number of calls to mbedtls_mutex_free() from the number
of calls to mbedtls_mutex_init(). A mutex leak will manifest as a
positive result at the end of the test case.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
If the mutex usage verification framework is enabled and it detects a
mutex usage error, report this error and mark the test as failed.
This detects most usage errors, but not all cases of using
uninitialized memory (which is impossible in full generality) and not
leaks due to missing free (which will be handled in a subsequent commit).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
When using pthread mutexes (MBEDTLS_THREADING_C and
MBEDTLS_THREADING_PTHREAD enabled), and when test hooks are
enabled (MBEDTLS_TEST_HOOKS), set up wrappers around the
mbedtls_mutex_xxx abstraction. In this commit, the wrapper functions
don't do anything yet.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Some functions were not deinitializing the PSA subsystem. This could
lead to resource leaks at the level of individual test cases, and
possibly at the level of the whole test suite depending on the order
and selection of test cases.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Make USE_PSA_INIT() and USE_PSA_DONE() available in all test suites in
all cases, doing nothing if MBEDTLS_USE_PSA_CRYPTO is disabled. Use
those in preference to having explicit
defined(MBEDTLS_USE_PSA_CRYPTO) checks (but there may still be places
left where using the new macros would be better).
Also provide PSA_INIT() by symmetry with PSA_DONE(), functional
whenver MBEDTLS_PSA_CRYPTO_C is enabled, but currently unused.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Test signature and signature verification by a transparent
driver in all.sh test_psa_crypto_config_basic and
test_psa_crypto_drivers components.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
In test_suite_psa_crypto_driver_wrappers test suite, the
sign/verify tests with software fallback tests should be run
only if the software fallback is available.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Change signature test driver default forced return
value from PSA_ERROR_NOT_SUPPORTED to PSA_SUCCESS to
be able to run the PSA unit tests with hash signature
and signature verification being handled by the
transparent test driver.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
A temporary hack: at the time of writing, not all dependency symbols
are implemented yet. Skip test cases for which the dependency symbols are
not available. Once all dependency symbols are available, this comit
should be reverted.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
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>
ECC curve dependency symbols include the key size in addition to the
curve family. Tweak the dependencies once the key size is known.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This test data file is automatically generated. We could do that as
part of the build, since the only requirement is Python and we have a
requirement on Python to build tests anyway (to generate the .c file
from the .function file). However, committing the generating file into
the repository has less impact on build scripts, and will be necessary
for some of the files generated by generate_psa_tests.py (at least the
storage format stability tests, for which stability is guaranteed by
the fact that the generated file doesn't change). To keep things
simple, for now, let's commit all the files generated by
generate_psa_tests.py into the repository.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Add support for ECC key types to the generation of not-supported test
cases in generate_psa_tests.py. For each curve, generate test cases
both for when ECC isn't supported and for when the curve isn't
supported.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
For each declared key type, generate test cases for psa_import_key and
psa_generate_key when the corresponding type is not supported.
Some special cases:
* Public keys can never be generated.
* Omit key types that Mbed TLS does not support at all.
* ECC and FFDH, which depend on a curve/group, are not covered yet.
The generated test cases are written to
tests/suites/test_suite_psa_crypto_not_supported.generated.data .
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit creates a script to generate test cases automatically
based on enumerating PSA key types, algorithms and other
classifications of cryptographic mechanisms.
Subsequent commits will implement the generation of test cases.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
To start with, test that key creation fails as intended when the key
type is not supported. This commit only covers psa_import_key and
psa_generate_key. A follow-up will cover psa_key_derivation_output_key.
My primary intent in creating this new test suite is to automatically
generate test cases by enumerating the key types and algorithms that
the library supports. But this commit only adds a few manually written
test cases, to get the ball rolling.
Move the relevant test cases of test_suite_psa_crypto.data that only
depend on generic knowledge about the API. Keep test cases that depend
more closely on the implementation, such as tests of non-supported key
sizes, in test_suite_psa_crypto.data.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The point of having an external RNG is that you can disable all
built-in RNG functionality: both the entropy part and the DRBG part.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The dependency is on MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG plus
MBEDTLS_PSA_CRYPTO_C. MBEDTLS_USE_PSA_CRYPTO is irrelevant.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The SSL test programs can now use mbedtls_psa_get_random() rather than
entropy+DRBG as a random generator. This happens if
the configuration option MBEDTLS_USE_PSA_CRYPTO is enabled, or if
MBEDTLS_TEST_USE_PSA_CRYPTO_RNG is set at build time.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Extend import/export/generate key through a PSA
transparent driver without software fallback
testing to RSA keys.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Now that the support for key generation in the transparent
test driver is at the same level as the support in the
Mbed TLS library, remove the restriction on the generate
key test case that was introduced by the work on key
import and export through the PSA driver interface.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Add a test in test_suite_psa_crypto_driver_wrappers that
when accelerators do not support the generation of a key
and there is no software fallback, the key generation
fails with the PSA_ERROR_NOT_SUPPORTED error code.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
For calls to gnutls-serv and gnutls-cli where --priority is not
specified, explicitly add the default value: --priority=normal. This is
needed for some tests on Ubuntu 20.04 (gnutls 3.6.13).
For example:
./ssl-opt.sh -f "DTLS fragmenting: gnutls.*1.0"
requires this PR to work on Ubuntu 20.04
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This brings them in line with PSA Crypto API 1.0.0
PSA_ALG_AEAD_WITH_DEFAULT_TAG_LENGTH -> PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG
PSA_ALG_AEAD_WITH_TAG_LENGTH -> PSA_ALG_AEAD_WITH_SHORTENED_TAG
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Add macros to skip a test case when hitting a
common alternative implementation limitation.
Add a macro for AES-192 and GCM with a nonce
length different from 12 bytes.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
We care about the exit code of our server, for example if it's
reporting a memory leak after having otherwise executed correctly.
We don't care about the exit code of the servers we're using for
interoperability testing (openssl s_server, gnutls-serv). We assume
that they're working correctly anyway, and they return 1 (gnutls-serv)
or die by the signal handle the signal (openssl) when killed by a
signal.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Make sure MBEDTLS_PSA_CRYPTO_CLIENT is defined
when MBEDTLS_PSA_CRYPTO_C is defined and guard
PSA client code only with MBEDTLS_PSA_CRYPTO_CLIENT.
The definition of MBEDTLS_PSA_CRYPTO_CLIENT is done
in crypto_types.h before the definition of
psa_key_attributes_t. That way as PSA crypto client
code is related to key attributes we can be quite
confident that MBEDTLS_PSA_CRYPTO_CLIENT will be
defined when needed.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Move test macros previously located in `suites/helpers.function` to
`include/test/macros.h`. This makes these test infrastructure macros
available for use in other parts of the test infrastructure at compile
time as opposed to run time.
This commit is a simple cut and paste from one file to the other.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
Check that the source address and the frame counter have the expected
length. Otherwise, if the test data was invalid, the test code could
build nonsensical inputs, potentially overflowing the iv buffer.
The primary benefit of this change is that it also silences a warning
from compiling with `gcc-10 -O3` (observed with GCC 10.2.0 on
Linux/amd64). GCC unrolled the loops and complained about a buffer
overflow with warnings like:
```
suites/test_suite_ccm.function: In function 'test_mbedtls_ccm_star_auth_decrypt':
suites/test_suite_ccm.function:271:15: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
271 | iv[i] = source_address->x[i];
| ~~~~~~^~~~~~~~~~~~~~~~~~~~~~
suites/test_suite_ccm.function:254:19: note: at offset [13, 14] to object 'iv' with size 13 declared here
254 | unsigned char iv[13];
```
Just using memcpy instead of loops bypasses this warnings. The added
checks are a bonus.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The test function generate_random allocated a few extra bytes after
the expected output and checked that these extra bytes were not
overwritten. Memory sanity checks such as AddressSanitizer and
Valgrind already detect this kind of buffer overflow, so having this
test in our code was actually redundant. Remove it.
This has the benefit of not triggering a build error with GCC
(observed with 7.5.0 and 9.3.0) when ASan+UBSan is enabled: with the
previous code using trail, GCC complained about an excessively large
value passed to calloc(), which was (size_t)(-sizeof(trail)).
Thus this commit fixes#4122.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Attempting to create an ECC key with a curve specification that is not
valid can plausibly fail with PSA_ERROR_INVALID_ARGUMENT ("this is not
a curve specification at all") or PSA_ERROR_NOT_SUPPORTED ("this may
be a curve specification, but not one I support"). The choice of error
is somewhat subjective.
Before this commit, due to happenstance in the implementation, an
attempt to use a curve that is declared in the PSA API but not
implemented in Mbed TLS returned PSA_ERROR_INVALID_ARGUMENT, whereas
an attempt to use a curve that Mbed TLS supports but for which support
was disabled at compile-time returned PSA_ERROR_NOT_SUPPORTED. This
inconsistency made it difficult to write negative tests that could
work whether the curve is implemented via Mbed TLS code or via a
driver.
After this commit, any attempt to use parameters that are not
recognized fails with NOT_SUPPORTED, whether a curve with the
specified size might plausibly exist or not, because "might plausibly
exist" is not something Mbed TLS can determine.
To keep returning INVALID_ARGUMENT when importing an ECC key with an
explicit "bits" attribute that is inconsistent with the size of the
key material, this commit changes the way mbedtls_ecc_group_of_psa()
works: it now works on a size in bits rather than bytes, with an extra
flag indicating whether the bit-size must be exact or not.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Test random generation as a whole. This is different from
test_suite_*_drbg and test_suite_entropy, which respectively test PRNG
modules and entropy collection.
Start with basic tests: good-case tests, and do it twice and compare
the results to validate that entropy collection doesn't repeat itself.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This used to be the case a long time ago but was accidentally broken.
Fix <github:nogrep> #4103 for ssl-opt.sh.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Whether MBEDTLS_USE_PSA_CRYPTO is enabled makes a significant
difference with respect to how random generators are used (and, for
no-HMAC_DRBG, how ECDSA signature is dispatched), so test both with
and without it.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Both tests do not require a lot of RAM, even though it may seem
like it at first sight. The derivation output is generated blockwise
from the KDF function, which only keeps state amounting to a couple
of blocks of the underlying hash primitive at a time.
There is never an allocation to keep the full derivation capacity in
memory...
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
