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971 Commits

Author SHA1 Message Date
David Horstmann
dae0ad439f Add more detail in design of memory poisoning 
Signed-off-by: David Horstmann <david.horstmann@arm.com>
 2023-10-19 15:12:34 +01:00
David Horstmann
0bd87f5959 Change unsigned int to uint8_t 
Signed-off-by: David Horstmann <david.horstmann@arm.com>
 2023-10-19 13:45:21 +01:00
David Horstmann
23661cc232 Detailed design of memory protection strategy 
Signed-off-by: David Horstmann <david.horstmann@arm.com>
 2023-10-18 18:20:33 +01:00
Gilles Peskine
df62f1a010
Merge pull request #1106 from gilles-peskine-arm/psa-shared-buffers-requirements 
PSA shared buffers requirements
 2023-10-17 20:38:00 +02:00
Janos Follath
d7a39ae21e Add plan for 3.6 to threading design 
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-10-17 14:34:26 +01:00
Janos Follath
574100bb0d Add clarifications to thread safety design 
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-10-17 12:50:28 +01:00
Janos Follath
811a954383 Add reentrancy section to thread safety design 
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-10-17 12:50:21 +01:00
Gilles Peskine
8ebeb9c180 Test for read-read inconsistency with mprotect and ptrace/gdb 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-16 18:37:02 +02:00
Gilles Peskine
87889ebe86 Fix editorial error with semantic consequences 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-16 15:40:02 +02:00
Gilles Peskine
a3ce6437bf Typos 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-16 15:39:37 +02:00
Gilles Peskine
1f2802c403 Suggest validating copy by memory poisoning 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 21:49:17 +02:00
Gilles Peskine
6998721c69 Add a section skeleton for copy bypass 
It's something we're likely to want to do at some point.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 20:05:32 +02:00
Gilles Peskine
7bc1bb65e9 Short explanations of what is expected in the design sections 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 20:05:25 +02:00
Gilles Peskine
35de1f7a7d Distinguish whole-message signature from other asymmetric cryptography 
Whole-message signature may process the message multiple times (EdDSA
signature does it).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 20:04:16 +02:00
Gilles Peskine
9cad3b3a70 Design change for cipher/AEAD 
There are many reasons why a driver might violate the security requirements
for plaintext or ciphertext buffers, so mandate copying.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 20:03:18 +02:00
Gilles Peskine
2859267a27 Clarify terminology: built-in driver 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 20:02:00 +02:00
Gilles Peskine
db00543b3a Add a section on write-read feedback 
It's a security violation, although it's not clear whether it really needs
to influence the design.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 19:57:53 +02:00
Gilles Peskine
352095ca86 Simplify the relaxed output-output rule 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 19:56:22 +02:00
Gilles Peskine
60c453ee72 Expand explanations of the vulnerabilities 
Add a few more examples.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 19:07:56 +02:00
Gilles Peskine
8daedaeac9 Fix typos and copypasta 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-13 18:47:29 +02:00
Gilles Peskine
f7806ca782 Analyze requirements for protection of arguments in shared memory 
Propose a dual-approach strategy where some buffers are copied and others
can remain shared.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-12 16:00:11 +02:00
Manuel Pégourié-Gonnard
f1878d8974 Update to only serve GCM and CCM 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-10-12 11:19:00 +02:00
Gilles Peskine
bb5d907aa9 Automatically pick up all Markdown files 
Assume GNU make. We already do with the toplevel makefile.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-10-11 20:47:44 +02:00
Janos Follath
28b4da954b Add PSA threading design 
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-10-10 15:15:55 +01:00
Manuel Pégourié-Gonnard
301d2a29a7 Update to MD light section 
Mostly to reflect this has been implemented, and remove references to
temporary remains from the previous strategy (hash_info, legacy_or_psa)
which would probably be more confusing than helpful at this point.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-10-10 10:04:07 +02:00
Manuel Pégourié-Gonnard
2daee0410e Update list of modules using hashes 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-10-10 10:04:07 +02:00
Manuel Pégourié-Gonnard
ca18b7747e Update definition of Cipher light 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-10-10 10:04:07 +02:00
Manuel Pégourié-Gonnard
839d3580bd Update details of modules using cipher operations 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-10-10 09:22:59 +02:00
Gilles Peskine
32743619a2
Merge pull request #8114 from yanesca/threading_requirements_update 
Refine thread safety requirements
 2023-10-09 11:22:59 +00:00
Manuel Pégourié-Gonnard
8c40f3dfad Formatting fixes 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-09-28 11:06:09 +02:00
Manuel Pégourié-Gonnard
140c08e325 Minor clarifications. 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-09-28 11:02:37 +02:00
Manuel Pégourié-Gonnard
89ae266e5a Update docs/driver-only-builds.md 
Latest changes:
- logic about the relationship between curves, key types and algs (8075)
- building without bignum is no longer "coming soon", it's there :)

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-09-28 08:53:05 +02:00
Manuel Pégourié-Gonnard
dfa42b34ab Improve documentation about driver-only p256-m. 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-09-28 08:53:05 +02:00
Manuel Pégourié-Gonnard
789000b2be Update list of p256-m entry points 
There was a bit of a race condition between #8041 which introduced the
new entry points, and #8203 which documented the list of entry points.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-09-28 08:51:51 +02:00
Dave Rodgman
0fc86b2ddf
Merge pull request #8075 from valeriosetti/issue8016 
driver-only ECC: curve acceleration macros
 2023-09-27 14:39:02 +00:00
Manuel Pégourié-Gonnard
f7dc6cfef1 Document limitation on "mixed" builds 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-09-27 10:34:52 +02:00
Xiaokang Qian
db3035b8bc Fix a typo in psa-crypto-implementation-structure.md 
Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
 2023-09-26 09:09:20 +00:00
Xiaokang Qian
76e55a20dd Change the documenti about psa_crypto_driver_wrappers.c{h} 
Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
 2023-09-26 09:09:20 +00:00
Xiaokang Qian
1198e43644 Change the description of auto-generated driver dispatch files 
Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
 2023-09-26 09:09:20 +00:00
Xiaokang Qian
845693c513 Change comments to psa_crypto_driver_wrappers.h 
Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
 2023-09-26 09:09:20 +00:00
Manuel Pégourié-Gonnard
030f11b0b1 Type fixes and wording improvements 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-09-24 09:48:47 +02:00
Manuel Pégourié-Gonnard
1f61b7b8ea Document driver-only hashes 
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
 2023-09-24 09:48:46 +02:00
Gilles Peskine
efaee9a299 Give a production-sounding name to the p256m option 
Now that p256-m is officially a production feature and not just an example,
give it a more suitable name.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-09-20 20:49:47 +02:00
Gilles Peskine
452beb9076
Merge pull request #8203 from gilles-peskine-arm/p256-m-production 
Declare p256-m as ready for production
 2023-09-20 09:36:05 +00:00
Paul Elliott
3d0bffb257 Improve statement in driver-only-builds.md 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-09-13 15:15:37 +01:00
Gilles Peskine
6f784dff49 Reflect the fact p256-m has been integrated into Mbed TLS 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-09-13 15:32:30 +02:00
Valerio Setti
7373a6644d driver-only-builds.md: fix text 
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
 2023-09-04 16:16:11 +02:00
Janos Follath
b4527fbd82 Add clarifications to the threading requirements 
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-08-31 14:01:24 +01:00
Janos Follath
b6954730f0
Fix typo 
Co-authored-by: Ronald Cron <ronald.cron@arm.com>
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-08-31 13:54:21 +01:00
Janos Follath
35633dd977 Add threading non-requirement 
State explicitly the non-requirement that it's ok for psa_destroy_key to
block waiting for a driver.

Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-08-31 08:31:19 +01:00