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Author SHA1 Message Date
Paul Elliott
88f2eb664f Remove multiplication from conditional assignments 
Multiplication is not constant flow on any CPU we are generally
targetting, so replace this with bit twiddling.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2021-03-03 15:31:17 +00:00
Gilles Peskine
9264e01730 Update error codes listed in the net_sockets documentation 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2021-03-03 12:27:17 +01:00
Steven Cooreman
4ff9a29686 Check truncation length explicitly 
Comparing algorithm with its FULL_LENGTH_MAC version doesn't work in
cases where algorithm is a wildcard. Wildcard input is not specified in
the documentation of the function, but in order to test the function
using the same test as PSA_MAC_LENGTH we're mimicking that behaviour here.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-03 12:07:20 +01:00
Steven Cooreman
58c94d39ae Make psa_get_mac_output_length testable and test it 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-03 10:37:35 +01:00
Paul Elliott
c48cb80b1f Prevent false positive CF Test Failures 
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>
 2021-03-02 22:48:40 +00:00
Paul Elliott
c1a895d897 Add further more rigorous tests for base64 
Original author was gilles.peskine@arm.com

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2021-03-02 22:44:37 +00:00
Steven Cooreman
7d4b0d778f Reuse PSA_MAC_LENGTH in psa_get_mac_output_length 
Avoid code duplication. Also update the guarantees made by the function
doc to match the guarantees given by PSA_MAC_LENGTH.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-02 21:40:03 +01:00
Steven Cooreman
5a17267442 Add a note about why key_type is required 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-02 21:40:03 +01:00
Steven Cooreman
1ac5ce3b91 Make psa_key_policy_algorithm_intersection MAC-length aware 
This makes it more in-line with how psa_key_policy_permits works. It
also adds consistency: the intersection of MAC with default length and
MAC with exact-length is now computed correctly in case the exact length
equals the default length of the algorithm when used with the given
key type.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-02 21:39:26 +01:00
Steven Cooreman
15472f8c70 Clean up psa_mac_setup now that we have an output length calculator 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-02 21:36:33 +01:00
Steven Cooreman
5ad4bf75e3 Move MAC default length checking into psa_key_policy_permits 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-02 21:36:33 +01:00
Steven Cooreman
328f11c50e Language & readability touchups 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-02 11:44:51 +01:00
Steven Cooreman
e538896ad8 Remove unreferenced static functions when ECP_NO_FALLBACK is used 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-02 10:14:24 +01:00
Ronald Cron
2a0278734b
Merge pull request #4148 from stevew817/add_missing_non_12b_gcm_test_skip 
Add missing test skip for ALT-implemented GCM (#4010 fix-up)
 2021-03-02 09:18:41 +01:00
Paul Elliott
0544d49330 Fix Non CF access to table in base64 decrypt 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2021-03-01 19:15:43 +00:00
Paul Elliott
6e152fa362 Optimise unneccesary cf table accesses away 
Also fix missed bare access of base_64_dec_map

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2021-03-01 18:33:09 +00:00
Paul Elliott
717ba77e52 Fix incorrect assumptions about the size of size_t 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2021-03-01 17:49:42 +00:00
Steven Cooreman
d788fab4ff Clarify usage of psa_key_policy_permits 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:09:24 +01:00
Steven Cooreman
16a05f5881 Add metadata tests intertwining truncated and at-least-length algos 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:09:24 +01:00
Steven Cooreman
947bb0b06f Code readability improvements 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:09:24 +01:00
Steven Cooreman
a1d8322f74 Fix typos & copy-paste errors 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:09:24 +01:00
Steven Cooreman
fb9cb92055 Move wildcard-to-exercisable conversion to exercise_key in test suite 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:09:24 +01:00
Steven Cooreman
7e39f05929 Using a wildcard as a specific algorithm now reports invalid argument 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:03:40 +01:00
Steven Cooreman
ae3f13bf5e Add more test cases and fix AT_LEAST_THIS_LENGTH against base algorithm 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:03:40 +01:00
Steven Cooreman
a96e2410e7 Test _AT_LEAST_THIS_LENGTH macros in the PSA Crypto metadata test suite 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:03:40 +01:00
Steven Cooreman
2c2efa488b Fix dependency-setting script and test dependencies for new tests 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:03:39 +01:00
Steven Cooreman
d927ed7901 Rename _MINIMUM_LENGTH flags to _AT_LEAST_THIS_LENGTH 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:03:39 +01:00
Steven Cooreman
4400c3a44a Add _AT_LEAST_THIS_LENGTH_ macros to PSA constants test 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:03:39 +01:00
Steven Cooreman
7de9e2db1f Language / verbiage fixes 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:03:39 +01:00
Steven Cooreman
aaec341c9b Exercise CCM with the right amount of IV bytes in test 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:03:39 +01:00
Steven Cooreman
5d81481a1c Rename AEAD WITH_MINIMUM_LENGTH to AT_LEAST_THIS_LENGTH 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>

# Conflicts:
#	include/psa/crypto_values.h
#	tests/suites/test_suite_psa_crypto.data
 2021-03-01 16:00:31 +01:00
Steven Cooreman
caad49316b rename MAC_WITH_MINIMUM_LENGTH_TAG to AT_LEAST_THIS_LENGTH_MAC 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:00:31 +01:00
Steven Cooreman
37389c768d Update validity domain of min_tag_length / min_mac_length 
Review indicated explicit validity domain should be [1, max_alg_length]

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>

# Conflicts:
#	include/psa/crypto_values.h
 2021-03-01 16:00:31 +01:00
Steven Cooreman
0348802247 Remove generic wildcard checks after review feedback 
Applied specific wildcard checks instead.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>

# Conflicts:
#	library/psa_crypto.c
 2021-03-01 16:00:31 +01:00
Steven Cooreman
ee18b1f5a4 Style and language updates after review 
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
 2021-03-01 16:00:31 +01:00
Steven Cooreman
b3ce8156ce Add support for minimum-tag-length AEAD and MAC policies 
Includes tests.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>

# Conflicts:
#	include/psa/crypto_values.h
#	tests/suites/test_suite_psa_crypto.function
 2021-03-01 16:00:31 +01:00
gabor-mezei-arm
c6f2480854
Fix documentation 
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
 2021-03-01 13:57:21 +01:00
gabor-mezei-arm
ceface2247
Add test for ouput buffer size macros 
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
 2021-03-01 13:57:21 +01:00
Gilles Peskine
34045c1d6a
Merge pull request #4145 from stevew817/fix_return_code 
Return NOT_SUPPORTED according to the API contract for psa_key_derivation_setup
 2021-03-01 13:20:50 +01:00
Gilles Peskine
574cf7b59f Clarify how a file descriptor could still be more than the limit 
It can happen if the file descriptor was opened before lowering the limit.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2021-03-01 11:43:56 +01:00
Gilles Peskine
97c57fe439 Fix sloppiness around stricly less-than vs less or equal 
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>
 2021-03-01 11:40:56 +01:00
Gilles Peskine
c8dab5b41e Fix sloppy wording around stricly less-than vs less or equal 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2021-03-01 11:39:21 +01:00
Gilles Peskine
e28f236b6b Document FD_SETSIZE limitation for mbedtls_net_{poll,recv_timeout} 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2021-02-25 15:56:48 +01:00
Gilles Peskine
ddf4374879 Fix stack buffer overflow in net functions with large file descriptor 
Fix a stack buffer overflow with mbedtls_net_poll() and
mbedtls_net_recv_timeout() when given a file descriptor that is beyond
FD_SETSIZE. The bug was due to not checking that the file descriptor
is within the range of an fd_set object.

Fix #4169

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2021-02-25 15:56:48 +01:00
Gilles Peskine
6667a78c9b Add test for mbedtls_net_poll beyond FD_SETSIZE 
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>
 2021-02-25 15:56:48 +01:00
Paul Elliott
3e7908189a Fixes for MSVC warnings 
Also added a couple of missing comment blocks.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2021-02-25 12:28:49 +00:00
Manuel Pégourié-Gonnard
80c02af03c Add cross-doc links, avoid redundancies 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2021-02-25 12:50:43 +01:00
Manuel Pégourié-Gonnard
b6aa958f87 Update the issue template 
- reference recently-created document
- try to improve general readability

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2021-02-25 12:50:42 +01:00
Manuel Pégourié-Gonnard
1b2e06124e Add SUPPORT.md 
This name is also recognized by github:
https://docs.github.com/en/github/building-a-strong-community/adding-support-resources-to-your-project

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2021-02-25 12:50:42 +01:00
Manuel Pégourié-Gonnard
a21abf249c Add SECURITY.md 
There was no mention of our security email address, nor of our security
process, in the repo, which made them hard to discover for contributors.

Also, this filename is recognized by github:
https://docs.github.com/en/github/managing-security-vulnerabilities/adding-a-security-policy-to-your-repository

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2021-02-25 12:50:42 +01:00