Commit Graph

10319 Commits

Author SHA1 Message Date
Gilles Peskine
06af0cd4a3 Always require reset after psa_get_key_attributes
There was a guarantee that psa_get_key_attributes() does not require a
subsequent psa_reset_key_attributes() to free resources as long as the
key was created with attributes having this property. This requirement
was hard to pin down because if a key is created with default
parameters, there are cases where it is difficult to ensure that the
domain parameters will be reported without allocating memory. So
remove this guarantee. Now the only case psa_reset_key_attributes() is
not required is if the attribute structure has only been modified with
certain specific setters.
2019-04-28 11:46:10 +02:00
Gilles Peskine
e56e878207 Remove extra parameter from psa_generate_key
Read extra data from the domain parameters in the attribute structure
instead of taking an argument on the function call.

Implement this for RSA key generation, where the public exponent can
be set as a domain parameter.

Add tests that generate RSA keys with various public exponents.
2019-04-26 17:37:50 +02:00
Gilles Peskine
772c8b16b4 psa_get_domain_parameters: for RSA, if e=65537, output an empty string 2019-04-26 17:37:21 +02:00
Gilles Peskine
b699f07af0 Switch psa_{get,set}_domain_parameters to attributes
Change psa_get_domain_parameters() and psa_set_domain_parameters() to
access a psa_key_attributes_t structure rather than a key handle.

In psa_get_key_attributes(), treat the RSA public exponent as a domain
parameter and read it out. This is in preparation for removing the
`extra` parameter of psa_generate_key() and setting the RSA public
exponent for key generation via domain parameters.

In this commit, the default public exponent 65537 is not treated
specially, which allows us to verify that test code that should be
calling psa_reset_key_attributes() after retrieving the attributes of
an RSA key is doing so properly (if it wasn't, there would be a memory
leak), even if the test data happens to use an RSA key with the
default public exponent.
2019-04-26 17:37:08 +02:00
Gilles Peskine
a1ace9c494 Call psa_reset_key_attributes after psa_get_key_attributes
After calling psa_get_key_attributes(), call
psa_reset_key_attributes() if the key may have domain parameters,
because that's the way to free the domain parameter substructure in
the attribute structure. Keep not calling reset() in some places where
the key can only be a symmetric key which doesn't have domain
parameters.
2019-04-26 16:15:31 +02:00
Gilles Peskine
3a4f1f8e46 Set the key size as an attribute
Instead of passing a separate parameter for the key size to
psa_generate_key and psa_generator_import_key, set it through the
attributes, like the key type and other metadata.
2019-04-26 13:49:28 +02:00
Gilles Peskine
30afafd527 Fix build errors with MBEDTLS_PSA_CRYPTO_STORAGE_C disabled 2019-04-25 17:42:32 +02:00
Gilles Peskine
3495b58fcf Fix loading of 0-sized key on platforms where malloc(0)=NULL 2019-04-25 17:42:32 +02:00
Gilles Peskine
2c2cf0e36d Update remaining test cases to use key attributes
Finish updating the tests to use psa_key_attributes_t and
psa_import_key instead of psa_key_policy_t and
psa_import_key_to_handle.
2019-04-24 15:47:30 +02:00
Gilles Peskine
a3dd737be4 Move legacy definitions to crypto_extra.h
Types and functions that are not used in the attribute-based key
creation API are now implementation-specific extensions, kept around
until we finish transitioning to the new API.
2019-04-24 15:47:30 +02:00
Gilles Peskine
2062859496 Document the new functions related to key attributes
Also update the documentation of key creation functions that have been
modified to use key attributes.
2019-04-24 15:47:30 +02:00
Gilles Peskine
4440688a69 Update key management tests to use attributes
Remove test cases which are no longer relevant because they involve a
slot which is allocated but not filled with key material.
2019-04-24 15:47:29 +02:00
Gilles Peskine
d167b94b87 Reject invalid key ids/lifetimes in attribute-based creation 2019-04-24 15:46:04 +02:00
Gilles Peskine
34e23d2109 Persistent key gray-box tests: add test cases with restart
Also test the behavior if the crypto subsystem is restarted after
creating the persistent key.
2019-04-24 15:46:04 +02:00
Gilles Peskine
5c648abe44 Update persistent_key_load_key_from_storage to use attributes
Update persistent_key_load_key_from_storage to the new attribute-based
key creation interface. I tweaked the code a little to make it simpler
and more robust without changing the core logic.
2019-04-24 15:46:04 +02:00
Gilles Peskine
ca25db91f5 Update copy_key tests to the new attribute-based interface 2019-04-24 15:46:04 +02:00
Gilles Peskine
4cf3a43dbd Simplify and expand invalid-handle tests
Simplify invalid-handle tests and make them test more things. Call
these tests in several test functions after destroying a key.
2019-04-24 15:46:04 +02:00
Gilles Peskine
c4344042f4 Remove tests for empty slots
With the attribute-based key creation API, it is no longer possible to
have a handle to a slot that does not hold key material. Remove all
corresponding tests.
2019-04-24 15:46:04 +02:00
Gilles Peskine
8c8f2ab66b Implement psa_get_key_attributes
Implement attribute querying.

Test attribute getters and setters. Use psa_get_key_attributes instead
of the deprecated functions psa_get_key_policy or
psa_get_key_information in most tests.
2019-04-24 15:46:04 +02:00
Gilles Peskine
dfea0a2510 Use the attribute-based key creation interface in sample programs 2019-04-24 15:46:04 +02:00
Gilles Peskine
ff5f0e7221 Implement atomic-creation psa_{generate,generator_import}_key
Implement the new, attribute-based psa_generate_key and
psa_generator_import_key.
2019-04-24 15:46:03 +02:00
Gilles Peskine
db4b3abab1 Implement missing attributes setters and getters 2019-04-24 15:46:03 +02:00
Gilles Peskine
4747d19d18 Implement atomic-creation psa_import_key
Implement the new, attribute-based psa_import_key and some basic
functions to access psa_key_attributes_t. Replace
psa_import_key_to_handle by psa_import_key in a few test functions.

This commit does not handle persistence attributes yet.
2019-04-24 15:45:50 +02:00
Gilles Peskine
87a5e565f4 Rename functions that inject key material to an allocated handle
This commit starts a migration to a new interface for key creation.
Today, the application allocates a handle, then fills its metadata,
and finally injects key material. The new interface fills metadata
into a temporary structure, and a handle is allocated at the same time
it gets filled with both metadata and key material.

This commit was obtained by moving the declaration of the old-style
functions to crypto_extra.h and renaming them with the to_handle
suffix, adding declarations for the new-style functions in crypto.h
under their new name, and running

    perl -i -pe 's/\bpsa_(import|copy|generator_import|generate)_key\b/$&_to_handle/g' library/*.c tests/suites/*.function programs/psa/*.c
    perl -i -pe 's/\bpsa_get_key_lifetime\b/$&_from_handle/g' library/*.c tests/suites/*.function programs/psa/*.c

Many functions that are specific to the old interface, and which will
not remain under the same name with the new interface, are still in
crypto.h for now.

All functional tests should still pass. The documentation may have
some broken links.
2019-04-24 15:24:45 +02:00
Jaeden Amero
c69af209f8
Merge pull request #92 from gilles-peskine-arm/psa-api-beta2-merge-development
Merge development into API spec branch
2019-04-18 14:38:34 +01:00
Gilles Peskine
a780f24cb4 Merge remote-tracking branch 'upstream-crypto/development' into psa-api-beta2-merge-development 2019-04-18 09:48:38 +02:00
Gilles Peskine
2b522db26d fixup! Key derivation by small input steps: proof-of-concept
Simplify the logic inside a few case statements. This removes
unreachable break statements.
2019-04-18 09:42:21 +02:00
Gilles Peskine
22c51517fb Use unsigned int for bitfields
uintN_t is not a standard type for a bitfield, as armcc points out.
2019-04-18 09:42:21 +02:00
Gilles Peskine
ab4b201497 fixup! Key derivation by small input steps: proof-of-concept
Fix logic error that clang helpfully points out
2019-04-18 09:42:21 +02:00
Gilles Peskine
c88644dd24 Remove "TODO" comments
One was obsolete. Reword the other two to avoid the magic word that
our CI rejects.
2019-04-18 09:42:21 +02:00
Gilles Peskine
882e57ecba psa_constant_names: support key agreement algorithms 2019-04-18 09:42:21 +02:00
Gilles Peskine
a52460c3ed Algorithm encoding: move two bits from derivation to agreement
This gives a little more room to encode key agreement algorithms,
while keeping enough space for key derivation algorithms.

This doesn't affect any of the already-defined algorithms.
2019-04-18 09:42:21 +02:00
Gilles Peskine
f8a9d942a5 Test multipart key agreement with ECDH+HKDF
Basic coverage with one algorithm only and a restricted choice of
output lengths.
2019-04-18 09:42:21 +02:00
Gilles Peskine
f0cba73b99 New test function for raw agreement
Change test cases with test data for raw agreement to this new test
function.
2019-04-18 09:42:21 +02:00
Gilles Peskine
f8831c27f3 Remove obsolete test case "ECDH-only public key"
Since the format change for EC public key import from
SubjectPublicKeyInfo to the ECPoint content, it is no longer possible
to import a key with metadata marking it as ECDH-only. This test was
converted systematically but now no longer has any purpose since the
public key is now like any other public key.
2019-04-18 09:42:21 +02:00
Gilles Peskine
77f40d83c1 Quick fix of key agreement setup tests for the new derivation API
Allow either the key derivation step or the key agreement step to
fail.

These tests should be split into three groups: key derivation setup
tests with an algorithm that includes a key agreement step, and
multipart key agreement failure tests, and raw key agreement failure
tests.
2019-04-18 09:42:21 +02:00
Gilles Peskine
04ee2d2295 Update key agreement policy tests for the new derivation API
Separate test functions for raw key agreement and key agreement with
KDF.
2019-04-18 09:42:21 +02:00
Gilles Peskine
2e46e9cf21 Add exercise_key for raw key agreement 2019-04-18 09:42:21 +02:00
Gilles Peskine
0216fe16b7 Implement psa_key_agreement_raw_shared_secret
Refactor: split psa_key_agreement_raw_internal out of
psa_key_agreement_internal, and call it from
psa_key_agreement_raw_shared_secret as well.
2019-04-18 09:42:21 +02:00
Jaeden Amero
125a1e980e
Merge pull request #90 from dgreen-arm/fix-its-file-on-windows
Use Windows-specific renaming function
2019-04-15 10:23:19 +01:00
Gilles Peskine
f9ee633d33 Fix confusion between HMAC algorithm and the corresponding hash 2019-04-11 21:22:52 +02:00
Darryl Green
86095bcaa8 Document rename_replace_existing macro 2019-04-11 14:21:14 +01:00
Darryl Green
fdda7de048 Use function-like macro for Windows renaming 2019-04-11 12:54:02 +01:00
Darryl Green
b467934fb7 Use Windows-specific renaming function
On Windows, rename() fails if the new filename already exists.
Use the Windows specific function MoveFileExA with the
MOVEFILE_REPLACE_EXISTING flag set instead to do renames.
2019-04-10 15:37:06 +01:00
Gilles Peskine
1e2730b9b1 Update usage of PSA_ALG_ECDH so that test_suite_psa_crypto compiles 2019-04-09 12:25:23 +02:00
Gilles Peskine
3135184cfc Merge remote-tracking branch 'upstream-crypto/development' into psa-api-beta2-merge-development
Merge the Mbed Crypto development branch a little after
mbedcrypto-1.0.0 into the PSA Crypto API 1.0 beta branch a little
after beta 2.

Summary of merge conflicts:

* Some features (psa_copy_key, public key format without
  SubjectPublicKeyInfo wrapping) went into both sides, but with a few
  improvements on the implementation side. For those, take the
  implementation side.
* The key derivation API changed considerably on the API side. This
  merge commit generally goes with the updated API except in the tests
  where it keeps some aspects of the implementation.

Due to the divergence between the two branches on key derivation and
key agreement, test_suite_psa_crypto does not compile. This will be
resolved in subsequent commits.
2019-04-09 12:00:00 +02:00
Jaeden Amero
c70a3c76bf Merge remote-tracking branch 'tls/development' into development
Resolve conflicts actions:
 - Reject path changes to config.h
 - Reject submodule-related changes in build scripts (Makefile,
   CMakeLists.txt)
 - Add oid test suite to list of tests in tests/CMakeLists.txt,
   rejecting any test filtering related changes (which TLS uses to avoid
   duplicating crypto tests)
 - Add legacy ECDH test to all.sh without including
   all.sh tests that depend on SSL
2019-03-28 16:02:25 +00:00
Jaeden Amero
57773d4ede Merge remote-tracking branch 'restricted/pr/551' into development
* restricted/pr/551:
  ECP: Clarify test descriptions
  ECP: remove extra whitespaces
  Fix ECDH secret export for Mongomery curves
  Improve ECP test names
  Make ecp_get_type public
  Add more tests for ecp_read_key
  ECP: Catch unsupported import/export
  Improve documentation of mbedtls_ecp_read_key
  Fix typo in ECP module
  Remove unnecessary cast from ECP test
  Improve mbedtls_ecp_point_read_binary tests
  Add Montgomery points to ecp_point_write_binary
  ECDH: Add test vectors for Curve25519
  Add little endian export to Bignum
  Add mbedtls_ecp_read_key
  Add Montgomery points to ecp_point_read_binary
  Add little endian import to Bignum
2019-03-27 17:01:24 +00:00
Jaeden Amero
0ea33776ce Merge remote-tracking branch 'restricted/pr/552' into development
Ensure this merge passes tests by auto-generating query_config.c, adding
MBEDTLS_ECDH_LEGACY_CONTEXT to it.

* restricted/pr/552:
  Fix mbedtls_ecdh_get_params with new ECDH context
  Test undefining MBEDTLS_ECDH_LEGACY_CONTEXT in all.sh
  Define MBEDTLS_ECDH_LEGACY_CONTEXT in config.h
  Add changelog entry for mbedtls_ecdh_get_params robustness
  Fix ecdh_get_params with mismatching group
  Add test case for ecdh_get_params with mismatching group
  Add test case for ecdh_calc_secret
  Fix typo in documentation
2019-03-27 17:01:16 +00:00
Jaeden Amero
c73fde725b Merge remote-tracking branch 'origin/pr/2531' into development
Ensure tests pass when the submodule is used by updating the list of
crypto tests to include test_suite_oid in both tests/CMakeLists.txt and
tests/Makefile.

* origin/pr/2531:
  Add changeLog entry
  Add certificate policy of type any policy id
2019-03-27 16:52:08 +00:00