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Author SHA1 Message Date
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fill_slots is superseded by many_transient_handles.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
f77ed1f20b Factor the common idiom psa_wipe_key_slot into a function 
Many places in the code called psa_remove_key_data_from_memory (which
preserves metadata for the sake of failues in psa_import_key) followed
by clearing the slot data. Use an auxiliary function for this.
 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
d7c75707b8 mbedtls_psa_crypto_free: free allocated slots as well 
Access the slot directly rather than going through psa_get_key_slot.
Unlike other places where key slots are accessed through
psa_get_key_slot, here, we know where all the slots are and there are
no policy or permission considerations.

This resolves a memory leak: allocated slots were not getting freed
because psa_get_key_slot rejected the attempt of accessing them
directly rather than via a handle.
 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
69f976b1d6 Distinguish in-memory slot number from in-storage slot identifier 
At the moment, the in-storage slot identifier is the in-memory slot
number. But track them separately, to prepare for API changes that
will let them be different (psa_open_key, psa_create_key).
 2018-12-11 16:48:12 +01:00
Gilles Peskine
ae32aac48e Switch function declarations from key slots to key handles 
Replace `psa_key_slot_t key` by `psa_key_handle_t` in function
declarations.

This is a transition period during which handles are key slot numbers
and the whole library can still be used by accessing a key slot number
without allocating a handle.
 2018-12-11 16:48:10 +01:00
Gilles Peskine
644cd5fd89 Linkify some macros that were just typeset as text 2018-12-11 16:47:35 +01:00
Gilles Peskine
f535eb2e61 Declare the new slot management functions in crypto.h 
No changes to existing functions.
 2018-12-11 16:06:51 +01:00
Gilles Peskine
3cac8c4d78 Move declarations related to lifetimes further up in crypto.h 
No content change. This is in preparation for declaring the slot
management functions, which need the type psa_key_lifetime_t.
 2018-12-05 09:40:07 +01:00
Gilles Peskine
de14d4d86d
Merge pull request #233 from ARMmbed/psa-fix_all.sh-20181204 
Fix all.sh
 2018-12-05 09:36:52 +01:00
Gilles Peskine
5a3c50e890 Don't use an enum in a bit-field 
This isn't standard C. GCC and Clang accept it but not every
compiler (e.g. Armcc 5).
 2018-12-04 12:27:09 +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
ac41c191b9 Add psa_crypto_invasive.h 2018-12-04 10:57:13 +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
Jaeden Amero
886ffc278f
Merge pull request #228 from ARMmbed/github-template-for-issue-tracking 
Add github issue template
 2018-11-30 11:35:56 +00:00
Jaeden Amero
368aa771a8
Merge pull request #225 from ARMmbed/dev/Patater/add-psa-crypto-docs 
Add generated documentation for mbedcrypto-0.1.0b
 2018-11-30 11:13:23 +00:00
itayzafrir
ce6ec7d5e7 Add github issue template 
Required for internal issue tracking.
 2018-11-29 15:53:00 +02:00
Gilles Peskine
59fd5aee42
Merge pull request #227 from ARMmbed/psa-aead-guards-fix 
Add missing compilation guards for GCM and CCM
 2018-11-28 18:28:11 +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
Jaeden Amero
8fe3372de1 Add generated documentation for mbedcrypto-0.1.0b 2018-11-26 17:21:23 +00:00
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
Jaeden Amero
0e9ff8546b
Merge pull request #224 from ARMmbed/feature-psa-tls-integration-proposed 
Update with "Mbed TLS using PSA" mini-release
 2018-11-23 21:30:23 +00:00
Hanno Becker
9edcc3e8fb Merge branch 'iotssl-2597-psa-hashing-x509_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 16:00:34 +00:00
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
02f20216bd Merge branch 'psa_cipher_integration_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:59:26 +00:00
Hanno Becker
6b01a9fa7c Merge branch 'psa_cipher_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:53:27 +00:00
Hanno Becker
e322d3edd5 Merge branch 'opaque_psk_implementation_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:53:24 +00:00
Hanno Becker
a96cc8a9fd Merge branch 'iotssl-2596-opaque-csr-creation_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:47:22 +00:00
Hanno Becker
826987f26c Merge branch 'iotssl-2574-pk-opaque-tls_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:47:21 +00:00
Hanno Becker
7fde035ddc Merge branch 'iotssl-2580-pk-opaque-psa_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:47:20 +00:00
Jaeden Amero
dc5f950e25
Merge pull request #223 from ARMmbed/dev/Patater/fix-unused-mac_setup 
psa: Unused key_bits is OK
 2018-11-23 15:35:43 +00:00
Jaeden Amero
82df32e3fd psa: Unused key_bits is OK 
When MD or CMAC are disabled, let the compiler know that it is OK that
`key_bits` is set but not used by casting `key_bits` to `(void)`.
 2018-11-23 15:20:56 +00:00
Jaeden Amero
565e0bf49d
Merge pull request #212 from ARMmbed/psa-integration-utilities_CRYPTO 
Mbed TLS integration: Shared code between module-specific integration work
 2018-11-23 09:00:22 +00:00
Andrzej Kurek
266d907c87 pk_wrap.c: fix length mismatch check placement 2018-11-22 13:37:14 -05:00
Andrzej Kurek
96cc1b3def pk_wrap.c: tidy up signature extraction 
Add a sanity check for signature length, remove superfluous bounds check.
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
e30ad542a1 Cosmetic changes 
Move memset to a more relevant spot, fix one whitespace error
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
73bf6b9e00 pk_wrap: rework and tidy up signature extraction 
Improve comments, use a normal buffer instead of mbedtls_asn1_buf,
remove unneeded variables and use shared utilities where possible.
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
688ea8d10d pk_wrap: reuse a static buffer for signature extraction 
Use a buffer left over after importing a key to hold an extracted signature.
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
3016de3eeb pk_wrap: rework signature extraction to work with small r and s values 
There is a probability that r will be encoded as 31 or less bytes in DER,
so additional padding is added in such case.
Added a signature-part extraction function to tidy up the code further.
 2018-11-22 13:37:14 -05:00
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
45fc464156 pk_wrap: improve error codes returned from ecdsa_verify_wrap 
Use the shared PSA utilities to translate errors.
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
ca6330992e pk_wrap: switch to helper functions defined in psa_util.h 
Remove duplicated helper functions.
Remove an unnecessary call to psa_crypto_init().
 2018-11-22 13:37:14 -05:00