Commit Graph

1619 Commits

Author SHA1 Message Date
Gilles Peskine
1f9e58a1bb Merge branch 'psa-signature_policy_wildcard' into psa-api-1.0-beta
For hash-and-sign algorithms, allow a policy to specify a wildcard
instead of a specific hash algorithm.
2019-01-18 17:52:17 +01:00
Jaeden Amero
0ae445f8fd psa: Simplify EC public key format
Remove front matter from our EC key format, to make it just the contents
of an ECPoint as defined by SEC1 section 2.3.3.

As a consequence of the simplification, remove the restriction on not
being able to use an ECDH key with ECDSA. There is no longer any OID
specified when importing a key, so we can't reject importing of an ECDH
key for the purpose of ECDSA based on the OID.
2019-01-15 11:29:18 +00:00
Gilles Peskine
30f77cdfc1 Add a hash wildcard value for hash-and-sign algorithm
You can use PSA_ALG_ANY_HASH to build the algorithm value for a
hash-and-sign algorithm in a policy. Then the policy allows usage with
this hash-and-sign family with any hash.

Test that PSA_ALG_ANY_HASH-based policies allow a specific hash, but
not a different hash-and-sign family. Test that PSA_ALG_ANY_HASH is
not valid for operations, only in policies.
2019-01-14 19:38:56 +01:00
Gilles Peskine
d35b489ce5 New macro PSA_ALG_IS_HASH_AND_SIGN
Test for a subclass of public-key algorithm: those that perform
full-domain hashing, i.e. algorithms that can be broken down as
sign(key, hash(message)).
2019-01-14 16:02:15 +01:00
Jaeden Amero
6b19600fba psa: Simplify RSA public key format
Remove pkcs-1 and rsaEncryption front matter from RSA public keys. Move
code that was shared between RSA and other key types (like EC keys) to
be used only with non-RSA keys.
2019-01-11 18:08:53 +00:00
Jaeden Amero
d94d671f14 psa: Test that generator initializers work 2019-01-08 14:28:04 +00:00
Jaeden Amero
5bae227da0 psa: Add initializers for cipher operation objects
Add new initializers for cipher operation objects and use them in our
tests and library code. Prefer using the macro initializers due to their
straightforwardness.
2019-01-08 14:28:04 +00:00
Jaeden Amero
769ce27f12 psa: Add initializers for MAC operation objects
Add new initializers for MAC operation objects and use them in our tests
and library code. Prefer using the macro initializers due to their
straightforwardness.
2019-01-08 14:28:04 +00:00
Jaeden Amero
6a25b41ac3 psa: Add initializers for hash operation objects
Add new initializers for hash operation objects and use them in our
tests and library code. Prefer using the macro initializers due to their
straightforwardness.
2019-01-08 14:28:04 +00:00
Jaeden Amero
70261c513a psa: Add initializers for key policies
Add new initializers for key policies and use them in our docs, example
programs, tests, and library code. Prefer using the macro initializers
due to their straightforwardness.
2019-01-08 14:28:04 +00:00
Jaeden Amero
8c7e95d9e0 tests: Remove unused key policy objects
persistent_key_import() and persistent_key_destroy() don't need to and
don't use key policy objects. Remove unused key policy objects.
2019-01-04 15:38:07 +00:00
Gilles Peskine
c08fc1d7e9 Move MIN and MAX macros from PSA tests to helpers.function 2018-12-20 18:47:53 +01:00
Gilles Peskine
d76f181617 Prefer ASSERT_ALLOC to calloc+TEST_ASSERT in PSA tests
To allocate memory dynamically in a test, call ASSERT_ALLOC which
takes care of calling calloc and of checking for NULL.
2018-12-20 18:47:53 +01:00
Gilles Peskine
1f2aa0e3b0 Remove useless null checks of data_t* parameters
The test framework never passes NULL for a data_t* parameter, so
testing them against NULL is clutter.
2018-12-20 18:47:53 +01:00
Gilles Peskine
40ab95bdbc Remove checks of test parameters against SIZE_MAX
Our code base doesn't even support 16-bit platforms, so those checks
are always trivially true.
2018-12-20 18:47:53 +01:00
Gilles Peskine
0dfba2ddf0 Use ASSERT_COMPARE in preference to memcmp in PSA tests 2018-12-20 18:47:52 +01:00
Gilles Peskine
f812dcf4ae Rewrap some lines after the macro changes
Change the way some lines are wrapped to cut at a more logical place.
This commit mainly rewrites multi-line calls to TEST_EQUAL, and also a
few calls to PSA_ASSERT.
2018-12-20 18:47:52 +01:00
Gilles Peskine
fe11b72b93 Use TEST_EQUAL(a,b) in preference to TEST_ASSERT(a==b)
This commit is the result of the following command, followed by
reindenting (but not wrapping lines):

perl -00 -i -pe 's/^( *)TEST_ASSERT\(([^;=]*)(?: |\n *)==([^;=]*)\);$/${1}TEST_EQUAL($2,$3);/gm' tests/suites/test_suite_psa_*.function
2018-12-20 18:47:52 +01:00
Gilles Peskine
8817f61007 Use PSA_ASSERT(a) in preference to TEST_ASSERT(a==PSA_SUCCESS)
This commit is the result of the following command, followed by
reindenting (but not wrapping lines):

perl -00 -i -pe 's/^( *)TEST_ASSERT\(([^;=]*)(?: |\n *)==\s*PSA_SUCCESS\s*\);$/${1}PSA_ASSERT($2 );/gm' tests/suites/test_suite_psa_*.function
2018-12-20 18:47:52 +01:00
Gilles Peskine
0f915f1d2a Indent PSA tests according to K&R rules with Mbed TLS tweaks
Only whitespace changes in this commit.
2018-12-20 18:47:52 +01:00
Gilles Peskine
9d8eea7e19 Wrap some multiline expressions in parentheses
This guarantees that they'll be indented as desired under most
indentation rules.
2018-12-20 18:47:52 +01:00
Gilles Peskine
5f7aeeea06 New test macro TEST_EQUAL
TEST_EQUAL(expr1, expr2) is just TEST_ASSERT((expr1) == (expr2)) for
now, but in the future I hope that it will print out the differing
values.
2018-12-20 18:47:52 +01:00
Gilles Peskine
0174be2c17 Move the PSA_ASSERT macro to the common helpers file
It's potentially useful in all PSA test suites, of which there are now
several.
2018-12-20 18:47:52 +01:00
Gilles Peskine
f055ad7512 Add a safety check to ARRAY_LENGTH
Cause a compilation error on ARRAY_LENGTH(p) where p is a pointer as
opposed to an array. This only works under GCC and compatible
compilers such as Clang. On other compilers, ARRAY_LENGTH works but
doesn't check the type of its argument.
2018-12-20 18:47:52 +01:00
Gilles Peskine
3d2f949c86 Move the ARRAY_LENGTH macro to the common helpers file 2018-12-17 23:17:17 +01:00
Gilles Peskine
79a11d6c42 Test invalid lifetime regardless of support for persistent keys
Even if persistent keys are not supported, psa_open_key and
psa_create_key must fail if invoked with an invalid lifetime value.
2018-12-11 16:48:14 +01:00
Gilles Peskine
539cda57df Add tests with invalid key identifiers
Test that 0 and PSA_CRYPTO_ITS_RANDOM_SEED_UID are not accepted as key
identifiers.
2018-12-11 16:48:14 +01:00
Gilles Peskine
4a044739a8 Fix the build without persistent storage
Add missing guards on MBEDTLS_PSA_CRYPTO_STORAGE_C.

Add test cases to test that psa_create_key and psa_open_key return
NOT_SUPPORTED.
2018-12-11 16:48:14 +01:00
Gilles Peskine
c5487a8892 Drop support for psa_key_slot_t in psa_crypto.c
This commit finishes the removal of support for direct access to key
slots in psa_crypto.c.

This marks the end of the necessary phase of the transition to key
handles. The code should subsequently be refactored to move key slot
management from psa_crypto.c to psa_crypto_slot_management.c.
2018-12-11 16:48:13 +01:00
Gilles Peskine
7bc9f68232 Convert the PSA crypto persistent storage tests to the new handle API
Switch from the direct use of slot numbers to handles allocated by
psa_allocate_key.

The general principle for each function is:
* Change `psa_key_slot_t slot` to `psa_key_handle_t handle` or
  `psa_key_id_t key_id` depending on whether it's used as a handle to
  an open slot or as a persistent name for a key.
* Call psa_create_key() before using a slot, instead of calling
  psa_set_key_lifetime to make a slot persistent.

Remove the unit test persistent_key_is_configurable which is no longer
relevant.
2018-12-11 16:48:13 +01:00
Gilles Peskine
bdf309ccdb Convert the PSA crypto cryptography tests to the new handle API
Switch from the direct use of slot numbers to handles allocated by
psa_allocate_key.

This commit does not affect persistent key tests except for the one
test function in test_suite_psa_crypto that uses persistent keys
(persistent_key_load_key_from_storage).

The general principle for each function is:
* Change `psa_key_slot_t slot` to `psa_key_handle_t handle`.
* Call psa_allocate_key() before setting the policy of the slot,
  or before creating key material in functions that don't set a policy.
* Some PSA_ERROR_EMPTY_SLOT errors become PSA_ERROR_INVALID_HANDLE
  because there is now a distinction between not having a valid
  handle, and having a valid handle to a slot that doesn't contain key
  material.
* In tests that use symmetric keys, calculate the max_bits parameters
  of psa_allocate_key() from the key data size. In tests where the key
  may be asymmetric, call an auxiliary macro KEY_BITS_FROM_DATA which
  returns an overapproximation. There's no good way to find a good
  value for max_bits with the API, I think the API should be tweaked.
2018-12-11 16:48:13 +01:00
Gilles Peskine
a8860b2990 Remove lifetime test functions
With the handle-based slot management interface, psa_set_key_lifetime
will no longer exist, so remove the corresponding unit tests.
2018-12-11 16:48:13 +01:00
Gilles Peskine
dc911fd594 Remove redundant slot-based test
fill_slots is superseded by many_transient_handles.
2018-12-11 16:48:13 +01:00
Gilles Peskine
a426168cbf Test that failure of import_key preserves metadata 2018-12-11 16:48:13 +01:00
Gilles Peskine
961849f6d1 Implement slot allocation
Implement psa_allocate_key, psa_open_key, psa_create_key,
psa_close_key.

Add support for keys designated to handles to psa_get_key_slot, and
thereby to the whole API.

Allocated and non-allocated keys can coexist. This is a temporary
stage in order to transition from the use of direct slot numbers to
allocated handles only. Once all the tests and sample programs have
been migrated to use handles, the implementation will be simplified
and made more robust with support for handles only.
2018-12-11 16:48:13 +01:00
Gilles Peskine
5ec7b078ea Add tests for the new slot management mechanism
Add unit tests for handle allocation and release.
2018-12-11 16:48:12 +01:00
Gilles Peskine
7f6e3a868a Change ASSERT_ALLOC to take a size in elements, not bytes
`ASSERT_ALLOC(p, length)` now allocates `length` elements, i.e.
`length * sizeof(*p)` bytes.
2018-12-11 16:48:12 +01:00
Gilles Peskine
79e213cfc8 Don't include mbedtls/platform.h unconditionally
Programs must not include mbedtls/platform.h if MBEDTLS_PLATFORM_C is
not defined. Test suites don't need to include mbedtls/platform.h
because helpers.function takes care of it.

This commit also removes a stray `;` which is technically not standard C.
2018-12-04 12:25:40 +01:00
Gilles Peskine
9edc146237
Merge pull request #209 from ARMmbed/psa-init_tests
Test psa_crypto_init and make it more robust
2018-11-30 13:28:47 +01:00
Gilles Peskine
b0b189f31f Add missing compilation guards for GCM and CCM
Add missing compilation guards that broke the build if either GCM or
CCM was not defined.

Add missing guards on test cases that require GCM or CBC.

The build and tests now pass for any subset of {MBEDTLS_CCM_C,
MBEDTLS_GCM_C}. There are still unused variables warnings if neither
is defined.
2018-11-28 17:30:58 +01:00
Gilles Peskine
9e1be6a246 Create the NV seed file for the tests if needed
Write an all-bits-zero NV seed file for the tests. Without this, if
the seed file is not present when this test suite is executed, the
PSA module initialization will fail, causing most test cases to fail.

Also write an all-bits-zero NV seed file at the end. The test cases in
this test suite mess with the file, but subsequent test suites may
need it.
2018-11-23 22:58:40 +01:00
Gilles Peskine
0fce4c5830 Add init tests with entropy from NV seed 2018-11-23 22:58:40 +01:00
Gilles Peskine
0b3b5733fc Support NV seed enabled at compile time but not at runtime
When testing with custom entropy sources, if MBEDTLS_ENTROPY_NV_SEED
is enabled at compile time but the NV seed source is not used at
runtime, mbedtls_entropy_func makes a second pass anyway. Cope with
this in the test code by telling the entropy module not to make this
second pass.
2018-11-23 22:58:40 +01:00
Gilles Peskine
ebe770c693 Add tests with a fake entropy source
Add tests with a fake entropy source to check that the required amount
of entropy is one block, fed in one or more steps.
2018-11-23 22:58:40 +01:00
Gilles Peskine
5e76952235 Add a facility to configure entropy sources
Add a function to configure entropy sources. For testing only.

Use it to test that the library initialization fails properly if there is no
entropy source.
2018-11-23 22:58:38 +01:00
Hanno Becker
8295695aca Merge branch 'iotssl-2578-psa-sig-verification_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 16:00:32 +00:00
Hanno Becker
6b01a9fa7c Merge branch 'psa_cipher_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:53:27 +00:00
Manuel Pégourié-Gonnard
7b7808cc76 Add tests for ECDSA verify with short r, s values
This is intended to test transcoding the signature to the format expected by
PSA (fixed-length encoding of r, s) when r and s have respectively:
- full length with initial null byte
- full length without initial null byte
- non-full length with initial null byte
- non-full length without initial null byte

The signatures were generated using:

programs/pkey/pk_sign tests/data_files/server5.key foo

where foo is an empty file, and with a variant of one of the following patches
applied:

diff --git a/library/ecdsa.c b/library/ecdsa.c
index abac015cebc6..e4a27b044516 100644
--- a/library/ecdsa.c
+++ b/library/ecdsa.c
@@ -305,7 +305,9 @@ static int ecdsa_sign_restartable( mbedtls_ecp_group *grp,
                 ret = MBEDTLS_ERR_ECP_RANDOM_FAILED;
                 goto cleanup;
             }
+            printf("\ngenerating r...\n");

+gen:
             MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, pk, f_rng, p_rng ) );

 #if defined(MBEDTLS_ECP_RESTARTABLE)
@@ -317,6 +319,11 @@ mul:
             MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, &R, pk, &grp->G,
                                                   f_rng, p_rng, ECDSA_RS_ECP ) );
             MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( pr, &R.X, &grp->N ) );
+
+            size_t bits = mbedtls_mpi_bitlen( pr );
+            printf("%zu ", bits);
+            if( bits != 255 )
+                goto gen;
         }
         while( mbedtls_mpi_cmp_int( pr, 0 ) == 0 );

or:

diff --git a/library/ecdsa.c b/library/ecdsa.c
index abac015cebc6..d704376e0c42 100644
--- a/library/ecdsa.c
+++ b/library/ecdsa.c
@@ -305,7 +305,9 @@ static int ecdsa_sign_restartable( mbedtls_ecp_group *grp,
                 ret = MBEDTLS_ERR_ECP_RANDOM_FAILED;
                 goto cleanup;
             }
+            printf("\ngenerating r...\n");

+gen:
             MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, pk, f_rng, p_rng ) );

 #if defined(MBEDTLS_ECP_RESTARTABLE)
@@ -353,6 +355,11 @@ modn:
         MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( s, pk, &grp->N ) );
         MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( s, s, &e ) );
         MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( s, s, &grp->N ) );
+
+            size_t bits = mbedtls_mpi_bitlen( s );
+            printf("%zu ", bits);
+            if( bits != 247 )
+                goto gen;
     }
     while( mbedtls_mpi_cmp_int( s, 0 ) == 0 );

with the value edited manually between each run to get the desired bit length.
2018-11-22 13:37:14 -05:00
Andrzej Kurek
510ee70501 pk_wrap: test if a valid md_alg is passed to ecdsa_verify_wrap
Adjust tests to pass a valid algorithm
2018-11-22 13:37:14 -05:00
Andrzej Kurek
d6d07909f2 Remove trailing whitespace 2018-11-22 12:43:53 -05:00