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15076 commits

Author SHA1 Message Date
Gilles Peskine d0a46e5c7f ssl_server2: don't check test hooks failure in query_config mode
Test hook failure checks may print information to stdout, which messes
up the usage of query_config mode. Nothing interesting happens in
query_config mode anyway, so that's no loss.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine 53dea743d5 SSL test programs: allow for test hooks init and error reports
Create utility functions to set up test hooks and report errors that
the test hooks might detect. Call them in ssl_client2 and ssl_server2.

Test hooks are potentially enabled by compiling with
MBEDTLS_TEST_HOOKS.

This commit only sets up the functions. It doesn't make them do
anything yet.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine 4337a9cb18 Document mutex usage for RSA
The mutex is now initialized iff ver != 0.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine 1226ecef01 Changelog entry for RSA mutex usage fix
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine 5e40a7cfa0 Fix mutex leak in RSA
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>
2021-02-22 19:24:03 +01:00
Gilles Peskine eb94059edd Fix mutex double-free in RSA
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>
2021-02-22 19:24:03 +01:00
Gilles Peskine 914afe1fdb Add init-free tests for RSA
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>
2021-02-22 19:24:03 +01:00
Gilles Peskine 7aba036154 Add missing cleanup in test function
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine 71edf749e1 Changelog entry for DRBG mutex usage fix
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine 478847cca3 Document thread safety for HMAC_DRBG
random(), and only this function, is thread-safe.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine e39b2192e5 Document mutex invariant for HMAC_DRBG
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine b791dc66ce Fix mutex leak in HMAC_DRBG
mbedtls_hmac_drbg_free() left a mutex in the initialized state. This
caused a resource leak on platforms where mbedtls_mutex_init()
allocates resources.

To fix this, mbedtls_hmac_drbg_free() no longer reinitializes the
mutex. To preserve the property that mbedtls_hmac_drbg_free() leaves
the object in an initialized state, which is generally true throughout
the library except regarding mutex objects on some platforms, no
longer initialize the mutex in mbedtls_hmac_drbg_init(). Since the
mutex is only used after seeding, and seeding is only permitted once,
call mbedtls_mutex_init() as part of the seeding process.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine f305d92480 Document thread safety for CTR_DRBG
random(), and only this function, is thread-safe.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine da290f9bcd Document mutex invariant for CTR_DRBG
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine f4b3429782 Fix mutex leak in CTR_DRBG
mbedtls_ctr_drbg_free() left a mutex in the initialized state. This
caused a resource leak on platforms where mbedtls_mutex_init()
allocates resources.

To fix this, mbedtls_ctr_drbg_free() no longer reinitializes the
mutex. To preserve the property that mbedtls_ctr_drbg_free() leaves
the object in an initialized state, which is generally true throughout
the library except regarding mutex objects on some platforms, no
longer initialize the mutex in mbedtls_ctr_drbg_init(). Since the
mutex is only used after seeding, and seeding is only permitted once,
call mbedtls_mutex_init() as part of the seeding process.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-22 19:24:03 +01:00
Gilles Peskine 39a1a26d0b Explain the usage of is_valid in pthread mutexes
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>
2021-02-22 19:24:03 +01:00
Gilles Peskine f96d3d8b20 Count and report non-freed mutexes
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>
2021-02-22 19:24:03 +01:00
Gilles Peskine 2a4c598859 Detect and report mutex usage errors
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>
2021-02-22 19:08:14 +01:00
Gilles Peskine 1061ec6782 Mutex usage testing: set up wrapper functions
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>
2021-02-22 19:08:14 +01:00
Gilles Peskine 1f186ff330 Add missing calls to USE_PSA_DONE
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>
2021-02-22 19:08:14 +01:00
Gilles Peskine 9de97e21fe Make {USE_,}PSA_{INIT,DONE} available in all test suites
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>
2021-02-22 19:08:14 +01:00
Dave Rodgman d6ee36ed04
Merge pull request #4110 from gilles-peskine-arm/psa-external-random-in-mbedtls
Expose the PSA RNG in mbedtls
2021-02-22 14:47:29 +00:00
Gilles Peskine bd21b18a1f
Merge pull request #4126 from gilles-peskine-arm/ccm-test-iv-overflow-warning
Silence gcc-10 warning in test_suite_ccm
2021-02-20 00:12:21 +01:00
David Brown 5fd5747402 Add missing header to cpp_dummy_build.cpp test
Part of build_default_make_gcc_and_cxx compares the list of headers
included by `programs/test/cpp_dummy_build.cpp` and the actual headers
present.  Add in the missing `mbedtls/psa_config.h` file to this list so
that this test passes.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-19 14:19:51 -07:00
Ronald Cron a7ce0fca59
Merge pull request #4076 from gilles-peskine-arm/psa-test-enumerate-not-supported
Test case generation framework: PSA key-type-not-supported
2021-02-18 15:55:14 +01:00
Ronald Cron 17b3afcc33 tests: psa: Test sign/verify hash by a transparent driver
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>
2021-02-18 15:45:12 +01:00
Ronald Cron 8d5645a858 tests: psa driver wrapper: Fix sign/verify unit test dependency
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>
2021-02-18 15:45:12 +01:00
Ronald Cron 4993c13cd3 tests: psa: Change test driver default forced return value
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>
2021-02-18 15:45:12 +01:00
Ronald Cron b5399a8346 psa: Rework ECDSA sign/verify support in the transparent test driver
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-18 15:45:12 +01:00
Ronald Cron 8a494f3ebd psa: Post move adjustments to psa_sign/verify_hash_internal
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-18 15:45:12 +01:00
Ronald Cron 072722ccb0 psa: Move ECDSA sign/verify to PSA ECP specific file
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-18 15:45:12 +01:00
Ronald Cron d1cb91c603 psa: Change psa_ecdsa_sign/verify signature
Change psa_ecdsa_sign/verify signature to that of
a sign/verify_hash driver entry point before to
move them to the psa_crypto_ecp.c ECP specific file.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-18 15:45:12 +01:00
Ronald Cron d2fb85479a psa: Add RSA sign/verify hash support to the transparent test driver
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-18 15:45:06 +01:00
Gilles Peskine d75adfcb3b KeyType: do a sanity check on the key type expression
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 18:05:27 +01:00
Gilles Peskine f68a9cf1e7 Fix test code under MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:58:29 +01:00
Gilles Peskine 4fbffcd144 Do not require typing_extensions at runtime
There are type annotations that indirectly depend on the
typing_extensions module (on Python 3.5-3.7: Protocol was added to the
core typing module in 3.8). The typing_extensions module is not
installed by default, so the code didn't run on a pristine Python
installation.

To avoid depending on a non-default module, make the dependency on
typing_extensions optional. (It's still required to run mypy, but
installing mypy takes care of providing typing_extensions.) If it
isn't available, provide a substitute definition that's just good
enough to get the scripts to run.

Move this ugly code to its own module to avoid the temptation of
spreading such ugliness all over the place. It's likely to be used in
other modules anyway.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:58:29 +01:00
Gilles Peskine 0d241eda69 Remove trailing comma which is only supported since Python 3.6
It's a syntax error in Python 3.5 and we run that in our CI.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:58:29 +01:00
Gilles Peskine 79f2166c22 Fix test suite declarations for cmake
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:58:29 +01:00
Gilles Peskine fa3c69a60f Improve documentation of crypto_knowledge.KeyType
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:58:29 +01:00
Gilles Peskine d169d60319 Skip dependency symbols that are not implemented
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>
2021-02-17 14:58:29 +01:00
Gilles Peskine 60b29fea46 Define WANT symbols for always-supported key types
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>
2021-02-17 14:50:52 +01:00
Gilles Peskine 7f756876b9 Append the key size to ECC curve dependencies
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>
2021-02-17 14:50:17 +01:00
Gilles Peskine 342cc7c475 Declare the new (automatically generated) test data file
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine 7d112ae04c Check in test_suite_psa_crypto_not_supported.generated.data
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>
2021-02-17 14:50:17 +01:00
Gilles Peskine 505cc641de Use the base name of the generating script, not the full path
Otherwise the generation is sensitive to trivial differences such as
running `tests/scripts/generate_psa_tests.py` vs
`./tests/scripts/generate_psa_tests.py` vs an absolute path.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine af1728442d Generate not-supported test cases: ECC key types
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>
2021-02-17 14:50:17 +01:00
Gilles Peskine 0ac258ed0b Don't consider secp192r1
SECP192R1 is declared in the PSA API specification, but it's an old
one that Mbed TLS doesn't support and even OpenSSL doesn't support.
We don't have test vectors for it. Just skip it.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine 0cbaf056fa Add some randomly generated keys
RSA-1536:
```
openssl genrsa 1536 2>/dev/null | openssl rsa -outform DER -pubout |hexlify
```
then formatted manually.

ECC except Montgomery:
```
function e { openssl genpkey -algorithm ec -pkeyopt ec_paramgen_curve:$1 -text |perl -0777 -pe 's/.*\npriv:([\n 0-9a-f:]*)pub:([\n 0-9a-f:]*).*/"$1","$2"/s or die; y/\n ://d; s/,/,\n              /;' |xsel -b; }
```

Curve448:
```
openssl genpkey -algorithm x448
```
then formatted manually.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine 6f6483f2d2 New module for key material for asymmetric key types
Asymmetric keys can't just be arbitrary byte strings: the public key
has to match the private key and the private key usually has
nontrivial constraints.

In order to have deterministic test data and not to rely on
cryptographic dependencies in the Python script, hard-code some test
keys.

In this commit, copy some test keys from test_suite_psa_crypto.data.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-17 14:50:17 +01:00
Gilles Peskine 14e428f921 Generate not-supported test cases automatically: import, generate
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>
2021-02-17 14:50:17 +01:00