Commit graph

256 commits

Author SHA1 Message Date
Gilles Peskine
22db9916fe The PSA cipher/AEAD API requires an initialized keystore
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-12-13 20:32:29 +01:00
Gilles Peskine
143ebcc1d6 PKCS#1v1.5 sign/verify uses hash metadata
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-12-13 20:30:10 +01:00
Gilles Peskine
cb93ac91bb Note that we can tweak the meaning of MBEDTLS_PSA_CRYPTO_CONFIG too
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-12-13 20:29:43 +01:00
Gilles Peskine
d167f16d55 Wording clarifications and typo fixes
No intended meaning change.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-12-13 20:29:15 +01:00
Manuel Pégourié-Gonnard
55a188b420 Clarify the "restart vs use PSA" situation in TLS
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-12-09 10:09:33 +01:00
Gilles Peskine
4eefade8bf Sketch some optimizations relevant to MD light
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-11-25 23:05:14 +01:00
Gilles Peskine
f634fe10e7 Sketch the work to migrate to MD light
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-11-25 23:04:51 +01:00
Gilles Peskine
188e900a6d Specify MD light based on the interface requirements
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-11-25 23:04:16 +01:00
Gilles Peskine
382b34ca84 Work out the hash interface requirements
Finish working out the RSA-PSS example in terms of what it implies about the
interface. The key takeaway is that a mixed-domain module must support
algorithms if they are available through either interface, and that's all
there is to it. The details of how dispatch is done don't matter, what
matters is only the availability, and it's just the disjunction of
availabilities.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-11-25 22:57:18 +01:00
Ronald Cron
4a8c9e2cff tls13: Add definition of mbedtls_ssl_{write,read}_early_data
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-11-23 14:29:37 +01:00
Manuel Pégourié-Gonnard
ba7c006222
Merge pull request #6466 from mprse/driver-only-hash-ci
Driver-only hashes: test coverage in the CI
2022-11-18 09:31:13 +01:00
Przemek Stekiel
93986645d8 Remove reference vs drivers test from outcome-analysis.sh
Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
2022-11-09 15:06:44 +01:00
Gilles Peskine
c82050efdb Starting to work out the RSA-PSS example
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-11-08 19:17:58 +01:00
Gilles Peskine
d47ba71676 New strategy: start the analysis
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-11-07 22:28:26 +01:00
Gilles Peskine
18e76e7eef typo
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-10-26 14:43:13 +02:00
Ronald Cron
93dcb1ba8d Update TLS 1.3 support document
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-10-25 20:02:09 +02:00
Ronald Cron
10bf956334 tls13: Fix documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-10-22 14:42:04 +02:00
Ronald Cron
9810b6d0b7 Fix kex config options documentation in tls13-support.md
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-10-22 14:42:04 +02:00
Ronald Cron
d8d2ea5674 Add TLS 1.3 key exchange mode config options
Add TLS 1.3 specific configuration options
to enable/disable the support for TLS 1.3
key exchange modes.

These configurations are introduced to
move away from the aforementioned
enablement/disablement based on
MBEDTLS_KEY_EXCHANGE_xxx_ENABLED options
that relate to group of TLS 1.2
ciphersuites.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-10-22 14:41:57 +02:00
Manuel Pégourié-Gonnard
0dc40773d6 Improve comments & messages
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-10-19 12:12:21 +02:00
Manuel Pégourié-Gonnard
d92fb01419 Skip bits not needed in outcome-analysis.sh
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-10-18 12:10:45 +02:00
Manuel Pégourié-Gonnard
b51051f1c7 Cosmetic improvement
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-10-18 12:10:45 +02:00
Manuel Pégourié-Gonnard
f6e6df9dbf Add option for before-after or just ref-drivers
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-10-18 12:10:45 +02:00
Manuel Pégourié-Gonnard
2bb2f15772 Improve driver-only outcome-analysis script
Instead of having a list of test suites of interest, have a list of
suites to ignore and look at all the others.

In order for this to only yield interesting results, we need to tune the
reference configuration a bit, in order to exclude STREAM and ECB to
more closely match the driver-based configuration.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-10-18 12:10:45 +02:00
Dave Rodgman
b319684bca Additional updates to docs links
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2022-10-12 16:47:08 +01:00
Manuel Pégourié-Gonnard
138387fc8c Fix some typos, improve wording & formatting
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-09-16 12:03:52 +02:00
Manuel Pégourié-Gonnard
d18c24b166 EC J-PAKE is now implemented in PSA
Quite unrelated to the other commits in this branch, but I happened to
spot it, so I fixed it.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-09-16 12:03:52 +02:00
Manuel Pégourié-Gonnard
c42c7e660e Update documentation in legacy_or_psa.h
- Some things that were indicated as in the near future are now done.
- Clarify when these macros are needed and when they're not.
- Prepare to make the header public.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-09-15 11:28:24 +02:00
Andrzej Kurek
11265d78bb Remove PKCS5 from the ref config in the migration script
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2022-09-02 04:06:54 -04:00
Andrzej Kurek
7bd12c5d5e Remove MD dependency from pkcs12 module
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2022-09-01 08:57:41 -04:00
Tom Cosgrove
0b86ac1957 Fix typographical errors in .md files found by cspell
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
2022-07-29 13:44:01 +01:00
Manuel Pégourié-Gonnard
68429fc44d Fix a few more typos
Update link while at it.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-27 20:44:02 +02:00
Manuel Pégourié-Gonnard
fca4dc6ba6 Clarifications & improved documentation
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-26 10:10:07 +02:00
Manuel Pégourié-Gonnard
fb2ed58064 Add notes on steps and testing
Also add example/template script to check for coverage regressions.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-21 13:51:19 +02:00
Manuel Pégourié-Gonnard
c8c352c322 Update strategy document to reflect new macros
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-21 13:35:08 +02:00
Manuel Pégourié-Gonnard
bdc8fd630a Suggest strategy for intra-crypto dependencies
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-21 10:19:26 +02:00
Manuel Pégourié-Gonnard
8c7b81cdf9 Fix a bunch of typos
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-18 12:49:20 +02:00
Manuel Pégourié-Gonnard
f88b1b5375 Introduce MBEDTLS_OR_PSA_WANT_xxx helper macros
Currently just replacing existing uses, but the real point of having
these conditions as a single macro is that we'll be able to use them in
tests case dependencies, see next commit.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-15 12:08:14 +02:00
Manuel Pégourié-Gonnard
af8cf5c04e Add a partial plan towards G5
Strategy for dependencies inside libmbecrypto, in particular in the PSA
Crypto core, are outside the scope of the present study.

Note: PR 6065, referenced in a few places, is the one that also
introduces the present commit. It kicks of the work towards G5 in parts
of the code governed by MBEDTLS_USE_PSA_CRYPTO.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-12 11:11:20 +02:00
Manuel Pégourié-Gonnard
c0d78e9e69 Remove outdated paragraphs about G5
- lack of support for PSA_CRYPTO_CONFIG is not really a reason not to
enable MBEDTLS_USE_PSA_CRYPTO by default - while it's true that
currently X.509/TLS do not behave as expected when PSA_CRYPTO_CONFIG and
MBEDTLS_USE_PSA_CRYPTO are both enabled, it's no worse than when
MBEDTLS_USE_PSA_CRYPTO is disabled.
- as a consequence of removing the paragraph mentioned above, the
sub-section about PSA_CRYPTO_CONFIG no longer belongs in the
"compile-time option" section. Also, it's superseded by the study work
that happened in the meantime (of which this PR is part). So let's
remove it, and the new commit will add something more up-to-date
instead.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-12 11:11:20 +02:00
Manuel Pégourié-Gonnard
481846c82f General update of PSA strategy documentation
Not related to the changes in this PR, except in the next commit I'll
update the strategy document for changes in this PR and to outline
likely follow-ups, and while looking at the document I noticed a few
things that needed updated, so here there are in their own commit.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-12 11:11:20 +02:00
Manuel Pégourié-Gonnard
9bf9b9e269 Link to restartable ECC EPIC
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-04 12:44:37 +02:00
Manuel Pégourié-Gonnard
103b9929d1 Remove HKDF-Extract/Expand
Being resolved in https://github.com/Mbed-TLS/mbedtls/issues/5784

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-04 12:38:43 +02:00
Manuel Pégourié-Gonnard
2a47d23927 Update strategy.md
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-04 12:38:43 +02:00
Manuel Pégourié-Gonnard
83c538869e Update psa-limitations
- misc updates about on-going/recent work
- removal of the section about mixed-PSK: being done in #5762
- clarifications in some places
- some typo fixes

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-04 12:38:43 +02:00
Manuel Pégourié-Gonnard
b8a6c2320e Update testing.md
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-04 12:38:43 +02:00
Manuel Pégourié-Gonnard
2ffb93a83b Rm tasks-g2.md
That document was always temporary (said so at the top). Now superseded
by https://github.com/orgs/Mbed-TLS/projects/1#column-18338322

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-07-04 12:38:43 +02:00
Ronald Cron
3cb707dc6d Fix and improve logs and documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-07-01 14:36:52 +02:00
Ronald Cron
2ba0d23c65 Update TLS 1.3 support documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-07-01 11:25:49 +02:00
Manuel Pégourié-Gonnard
11ccb35987
Merge pull request #5994 from gilles-peskine-arm/storage-format-doc-2.25-development
Update storage format specification for Mbed TLS 2.25.0+
2022-07-01 09:25:35 +02:00
Gilles Peskine
0b7ee23fe0 Historical update: the layout on stdio changed in Mbed Crypto 1.1.0
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-06-30 12:16:50 +02:00
Gilles Peskine
38989612d6 Typos
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-06-30 12:16:32 +02:00
Gilles Peskine
219a34839c Repeat the seed file documentation in 2.25.0
This way the 2.25.0 section is now fully self-contained.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-06-30 12:15:53 +02:00
Gilles Peskine
3d65a19ee3 Fix wrong type in C snippet
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-06-30 12:15:35 +02:00
Tom Cosgrove
d7adb3c7d9 Add comments about MBEDTLS_PSA_CRYPTO_C also being required by MBEDTLS_SSL_PROTO_TLS1_3
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
2022-06-30 09:48:40 +01:00
Gilles Peskine
25e39f24b9 Add section for Mbed TLS 2.25.0+
We hadn't updated the storage specification in a while. There have been no
changes to the storage layout, but the details of the contents of some
fields have changed.

Since this is now a de facto stable format (unchanged between 2.25 and 3.2),
describe it fully, avoiding references to previous versions.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-06-30 09:16:53 +02:00
Tom Cosgrove
afb2fe1acf Document that MBEDTLS_SSL_KEEP_PEER_CERTIFICATE is required by MBEDTLS_SSL_PROTO_TLS1_3
Also have check_config.h enforce this. And MBEDTLS_SSL_EXPORT_KEYS has been removed,
so no longer mention it.

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
2022-06-29 16:36:12 +01:00
Ronald Cron
6b14c69277 Improve documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-06-28 09:21:13 +02:00
Ronald Cron
139d0aa9d3 Fix typo in documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-06-28 09:21:13 +02:00
Ronald Cron
44b23b10e1 tls13: Document TLS 1.3 handshake implementation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-06-28 09:18:42 +02:00
Gilles Peskine
2e22ecbd09 Add guide to implementing new cryptographic mechanisms
Add a check list with what typically needs to be done when adding a new
algorithm, key type or operation. There are a few explanations but this is
primarily intended as a list of places to look and not as a detailed
explanation of exactly what to do.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-06-09 17:39:10 +02:00
Gilles Peskine
f30ff75137 List all markdown files in makefile
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-06-09 17:36:36 +02:00
bootstrap-prime
6dbbf44d78
Fix typos in documentation and constants with typo finding tool
Signed-off-by: bootstrap-prime <bootstrap.prime@gmail.com>
2022-05-18 14:15:33 -04:00
Dave Rodgman
65a141a7b0 Fix minor grammatical error
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2022-05-11 21:25:54 +01:00
Andrzej Kurek
5c65c5781f Fix additional misspellings found by codespell
Remaining hits seem to be hex data, certificates,
and other miscellaneous exceptions.
List generated by running codespell -w -L 
keypair,Keypair,KeyPair,keyPair,ciph,nd

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2022-05-11 21:25:54 +01:00
Shaun Case
8b0ecbccf4 Redo of PR#5345. Fixed spelling and typographical errors found by CodeSpell.
Signed-off-by: Shaun Case <warmsocks@gmail.com>
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2022-05-11 21:25:51 +01:00
Dave Rodgman
017a19997a Update references to old Github organisation
Replace references to ARMmbed organisation with the new
org, Mbed-TLS, following project migration.

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2022-03-31 14:43:16 +01:00
Ronald Cron
8f6d39a81d Make some handshake TLS 1.3 utility routines available for TLS 1.2
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-03-29 14:42:17 +02:00
Gilles Peskine
790f7428d2 Storage format test regressions are now checked mechanically
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-02-22 19:16:42 +01:00
Jerry Yu
bd19287a8e fix docs issue
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2022-02-21 09:06:00 +08:00
Jerry Yu
adb1869f8d fix document about tls13
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2022-02-21 09:06:00 +08:00
Jerry Yu
72a0565e13 docs: Add version support description
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2022-02-21 09:06:00 +08:00
Gilles Peskine
41618da50e Clarify backward compatibility requirement
There are two somewhat distinct aspects here: if it compiled, it still
compiles; and if it worked functionally, it still works. They're related in
that if application code currently compiles but cannot possibly work, we
could reasonably make it not compile anymore.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-02-16 22:32:12 +01:00
Gilles Peskine
41d0334b4c Write up requirements
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-02-15 16:06:09 +01:00
Andrzej Kurek
eec6b2c6b4 Updated slot->attr and slot->key access
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-02-15 16:06:03 +01:00
Ronald Cron
87829e5429 Fix documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-02-14 16:31:33 +01:00
Ronald Cron
4279bac965 Document TLS 1.3 MVP limitation regarding MBEDTLS_USE_PSA_CRYPTO
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2022-02-11 15:10:22 +01:00
Manuel Pégourié-Gonnard
c70013e4bc Clarify the trailer field situation
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-10 13:16:50 +01:00
Manuel Pégourié-Gonnard
c7f3254379 Clarify a sentence
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-10 13:00:33 +01:00
Manuel Pégourié-Gonnard
58d101b721 Fix a few more typos
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-10 12:58:09 +01:00
Manuel Pégourié-Gonnard
2c5fbad479
Merge pull request #5004 from mpg/doc-psa-migration
Document PSA migration strategy
2022-02-09 12:07:12 +01:00
Manuel Pégourié-Gonnard
839bb8a238 Fix an inaccuracy
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-08 10:33:41 +01:00
Manuel Pégourié-Gonnard
80759c4917 Fix a few more typos
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-08 10:33:11 +01:00
Manuel Pégourié-Gonnard
8ebed21216 Fix a few typos
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-07 10:23:49 +01:00
Manuel Pégourié-Gonnard
539b9a52f9 Fix discussion of RSA-PSS salt length
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-07 10:19:08 +01:00
Manuel Pégourié-Gonnard
2467aed961 Misc updates to testing.md
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-01 10:42:30 +01:00
Manuel Pégourié-Gonnard
ce6c0875d1 Misc updates to strategy.md
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-01 10:34:20 +01:00
Manuel Pégourié-Gonnard
8e559daaa8 Misc updates to psa-limitations.md
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-01 10:26:07 +01:00
Manuel Pégourié-Gonnard
335cbf61da Remove temporary documents
The dependencies-xxx.md documents where merely a support for study,
now distilled to strategy.md, psa-limitation.md, and tasks-xx.md
and/or github issues.

The tasks-g1.md document has now been fully converted to a list of
github issues.

These documents would quickly become out-of-date and there's little
point in updating them, so it's better to remove them. They're still in
the github history if anyone wants to have a look.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-01 09:55:45 +01:00
Manuel Pégourié-Gonnard
ec3fd75cbc Update strategy with late 2021 discussion
Unless I missed something, this should now reflect the current strategy.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:15 +01:00
Manuel Pégourié-Gonnard
5218774efb Add note about HKDF for TLS 1.3
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
ab1d3084b7 Goal 1 tasks are now all reflected on github
Replace descriptions with links just to double-check nothing has been
forgotten.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
0950359220 Improve "abstraction layers" section
- fix inaccuracy about PSA hash implementation
- add note about context-less operations
- provide summary

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
a6c601c079 Explain compile-time incompatibilities
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
7497991356 Expand discussion of goals
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
e459be2ed1 Complete discussion of RSASSA-PSS
Update to latest draft of PSA Crypto 1.1.0: back to strict verification
by default, but ANY_SALT introduced.

Commands used to observe default values of saltlen:

    openssl genpkey -algorithm rsa-pss -out o.key
    openssl req -x509 -new -key o.key -subj "/CN=CA" -sha256 -out o.crt

    certtool --generate-privkey --key-type rsa-pss --outfile g.key
    certtool --generate-self-signed --load-privkey g.key --outfile g.crt

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
f5ee4b3da4 Add data about RSA-PSS test files
Data gathered with:

    for c in server9*.crt; do echo $c; openssl x509 -noout -text -in $c |
        grep '^    Signature Algorithm: rsassaPss' -A3 | sed '1d'; done
    for c in crl-rsa-pss-*; do echo $c; openssl crl -noout -text -in $c |
        grep '^    Signature Algorithm: rsassaPss' -A3 | sed '1d'; done
    for c in server9.req.*; do echo $c; openssl req -noout -text -in $c |
        grep '^    Signature Algorithm: rsassaPss' -A3 | sed '1d'; done

Unfortunately there is no record of how these files have been generated.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
b902164cf0 Add temporary list of tasks for G1 and G2
Work in progress, some tasks have very explicit definitions and details
on how to execute, others much less so; some may need splitting.

These documents are temporary anyway, to give a rough idea of the work
remaining to reach those goals (both of which we started, but only for
some use case so far). Ultimately the result will be actionable and
estimated tasks on github.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
d9edd56bf8 Document PSA limitations that could be problems
(WIP: the study of RSA-PSS is incomplete.)

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00
Manuel Pégourié-Gonnard
b89fd95146 Document the general strategy for PSA migration
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-01-18 09:13:14 +01:00