Commit graph

217 commits

Author SHA1 Message Date
Gilles Peskine
e820c0abc8 Update spelling "mbed TLS" to "Mbed TLS"
The official spelling of the trade mark changed from all-lowercase "mbed"
to normal proper noun capitalization "Mbed" a few years ago. We've been
using the new spelling in new text but still have the old spelling in a
lot of text. This commit updates most occurrences of "mbed TLS":

```
sed -i -e 's/mbed TLS/Mbed TLS/g' $(git ls-files ':!ChangeLog' ':!tests/data_files/**' ':!tests/suites/*.data' ':!programs/x509/*' ':!configs/tfm*')
```

Justification for the omissions:

* `ChangeLog`: historical text.
* `test/data_files/**`, `tests/suites/*.data`, `programs/x509/*`: many
  occurrences are significant names in certificates and such. Changing
  the spelling would invalidate many signatures and tests.
* `configs/tfm*`: this is an imported file. We'll follow the upstream
  updates.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2023-09-12 19:18:17 +02:00
Tom Cosgrove
ca8c61b815 Provide and use internal function mbedtls_zeroize_and_free()
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
2023-07-17 15:17:40 +01:00
Manuel Pégourié-Gonnard
5c731b0afb Use consistent guards for deprecated feature
Fixes an "unused static function" warning in builds with
DEPRECATED_REMOVED.

While at it, remove an include that's now useless.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2023-07-06 12:42:33 +02:00
Manuel Pégourié-Gonnard
57fa72fdf8 Remove unused function in cipher.c
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2023-07-06 12:42:33 +02:00
Manuel Pégourié-Gonnard
efcc1f21c8 Make cipher functions static in cipher.c
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2023-07-06 12:42:33 +02:00
Manuel Pégourié-Gonnard
2be8c63af7 Create psa_util_internal.h
Most functions in psa_util.h are going to end up there (except those
that can be static in one file), but I wanted to have separate commits
for file creation and moving code around, so for now the new file's
pretty empty but that will change in the next few commits.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2023-07-06 12:42:33 +02:00
Dave Rodgman
1b8a3b16c4 Add casts for enums in cipher.c
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-06-24 17:33:14 +01:00
Dave Rodgman
3b46b77cf1 code style
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-06-24 13:37:28 +01:00
Dave Rodgman
de3de773e6 Use look-up table for base
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-06-24 12:59:31 +01:00
Dave Rodgman
bb521fdbc9 Don't directly access iv_size
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-06-24 12:59:31 +01:00
Dave Rodgman
9282d4f13a Don't directly access key_bitlen
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-06-24 11:07:40 +01:00
Gilles Peskine
449bd8303e Switch to the new code style
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2023-01-11 14:50:10 +01:00
Dave Rodgman
f1419dbbe8
Merge pull request #6381 from tom-cosgrove-arm/pr2164
mbedtls: fix possible false success in mbedtls_cipher_check_tag()
2022-11-25 10:55:10 +00:00
Gilles Peskine
0fe6631486
Merge pull request #6291 from gilles-peskine-arm/platform.h-unconditional-3.2
Include platform.h unconditionally
2022-10-13 10:19:22 +02:00
Denis V. Lunev
2df73ae742 mbedtls: fix possible false success in ...check_tags() helpers
We should report a error when the security check of the security
tag was not made. In the other case false success is possible and
is not observable by the software.

Technically this could lead to a security flaw.

Signed-off-by: Denis V. Lunev <dlunev@gmail.com>
2022-09-30 17:15:49 +01:00
Gilles Peskine
945b23c46f Include platform.h unconditionally: automatic part
We used to include platform.h only when MBEDTLS_PLATFORM_C was enabled, and
to define ad hoc replacements for mbedtls_xxx functions on a case-by-case
basis when MBEDTLS_PLATFORM_C was disabled. The only reason for this
complication was to allow building individual source modules without copying
platform.h. This is not something we support or recommend anymore, so get
rid of the complication: include platform.h unconditionally.

There should be no change in behavior since just including the header should
not change the behavior of a program.

This commit replaces most occurrences of conditional inclusion of
platform.h, using the following code:

```
perl -i -0777 -pe 's!#if.*\n#include "mbedtls/platform.h"\n(#else.*\n(#define (mbedtls|MBEDTLS)_.*\n|#include <(stdarg|stddef|stdio|stdlib|string|time)\.h>\n)*)?#endif.*!#include "mbedtls/platform.h"!mg' $(git grep -l '#include "mbedtls/platform.h"')
```

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-09-15 20:33:07 +02:00
Tuvshinzaya Erdenekhuu
80a6af6ab5 Re-introduce ENUM validation in cipher.c
Signed-off-by: Tuvshinzaya Erdenekhuu <tuvshinzaya.erdenekhuu@arm.com>
2022-08-31 10:14:57 +01:00
Tuvshinzaya Erdenekhuu
5ce8e52907 Remove NULL pointer validation in cipher.c
Signed-off-by: Tuvshinzaya Erdenekhuu <tuvshinzaya.erdenekhuu@arm.com>
2022-08-31 10:14:57 +01:00
Przemek Stekiel
ef1fb4a3d3 Deprecate mbedtls_cipher_setup_psa()
Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
2022-05-06 10:55:10 +02:00
Andrzej Kurek
63439eda62 Return an error for IV lengths other than 12 with ChaCha20+Poly1305
The implementation was silently overwriting the IV length to 12
even though the caller passed a different value.
Change the behavior to signal that a different length is not supported.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2022-01-14 16:31:54 +01:00
Andrzej Kurek
33ca6af8a3 Return an error for IV lengths other than 12 with ChaCha20
The implementation was silently overwriting the IV length to 12
even though the caller passed a different value.
Change the behavior to signal that a different length is not supported.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2022-01-14 16:31:54 +01:00
Gilles Peskine
cd74298c83 mbedtls_cipher_check_tag: jump on error for more robustness to refactoring
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 17:01:25 +01:00
Gilles Peskine
e7835d92c1 mbedtls_cipher_check_tag: zeroize expected tag on tag mismatch
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 12:32:43 +01:00
Gabor Mezei
be7b21da22
Merge branch 'development' into 3649_move_constant_time_functions_into_separate_module 2021-11-24 10:44:13 +01:00
Mateusz Starzyk
4cb9739038 Use separate MBEDTLS_MODE for the CCM*.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-10-27 10:42:31 +02:00
Mateusz Starzyk
594215be6e Add support for CCM*-no-tag to PSA.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-10-21 11:33:41 +02:00
Gabor Mezei
90437e3762
Rename constant-time functions to have mbedtls_ct prefix
Rename functions to better suite with the module name.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-20 11:59:27 +02:00
Gabor Mezei
765862c4f3
Move mbedtls_cf_memcmp to a new public header
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-19 12:22:25 +02:00
Przemyslaw Stekiel
80c6a8e1a6 Add PSA support for MBEDTLS_CIPHER_AES_128_ECB
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-09-29 12:39:21 +02:00
gabor-mezei-arm
4602564d7a
Unify memcmp functions
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:33:47 +02:00
gabor-mezei-arm
db9a38c672
Move contatnt-time memcmp functions to the contant-time module
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:16:14 +02:00
Gilles Peskine
5a7be10419 Add output_length parameter to mbedtls_gcm_finish
Without this parameter, it would be hard for callers to know how many bytes
of output the function wrote into the output buffer. It would be possible,
since the cumulated output must have the same length as the cumulated input,
but it would be cumbersome for the caller to keep track.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-23 21:51:32 +02:00
Ronald Cron
49fef37ebf
Merge pull request #4342 from gilles-peskine-arm/gcm-update-any-length
GCM: allow arbitrary lengths for update
Only the ABI-API-checking job failed and this is expected thus good to go.
2021-05-20 15:08:55 +02:00
TRodziewicz
85dfc4de20 Applying current changes
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-04-30 00:07:04 +02:00
TRodziewicz
18efb73743 Remove deprecated functions and constants.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-04-29 23:12:19 +02:00
Tomasz Rodziewicz
d6c246f5bf
Merge branch 'development_3.0' into remove_depr_error_codes 2021-04-21 12:31:43 +02:00
Gilles Peskine
295fc13ef3 Split mbedtls_gcm_update_ad out of mbedtls_gcm_starts
The GCM interface now has separate functions to start the operation
and to pass the associated data.

This is in preparation for allowing the associated data to be passed
in chunks with repeatated calls to mbedtls_gcm_update_ad().

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-15 21:34:33 +02:00
Gilles Peskine
a56c448636 Add output length parameters to mbedtls_gcm_update
Alternative implementations of GCM may delay the output of partial
blocks from mbedtls_gcm_update(). Add an output length parameter to
mbedtls_gcm_update() to allow such implementations to delay the output
of partial blocks. With the software implementation, there is no such
delay.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-15 21:34:33 +02:00
Gilles Peskine
9461e45a17 Add output parameter to mbedtls_gcm_finish
Alternative implementations of GCM may delay the output of partial
blocks from mbedtls_gcm_update(). Add an output parameter to
mbedtls_gcm_finish() to allow such implementations to pass the final
partial block back to the caller. With the software implementation,
this final output is always empty.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-15 18:41:38 +02:00
TRodziewicz
b579ccd529 The still used deprecated error codes replaced with _PLATFORM_ ones
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-04-13 14:29:29 +02:00
Chris Jones
daacb59c2e Rename <pk/md/cipher>_internal.h to *_wrap.h
Revert changes introduced in 50518f4195
as it is now clear that these headers are internal without the
`*_internal.h` suffix.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-03-10 12:52:37 +00:00
Chris Jones
e2191cd789 Update includes to use library/ instead of include/mbedtls/
Simple find and replace using `#include (<|")mbedtls/(.*)_internal.h(>|")`
and `#include $1$2_internal.h$3`.

Also re-generated visualc files by running
`scripts/generate_visualc_files.pl`.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-03-10 12:52:37 +00:00
Manuel Pégourié-Gonnard
841b6fa97f Fix unused param warnings in auth_xxcrypt_ext()
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-12-07 10:42:21 +01:00
Gilles Peskine
4e0a4d444d Clarifying comment
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 10:08:30 +01:00
Gilles Peskine
a56d3d9e75 cipher_auth_xxcrypt_ext: Make NIST_KW case more robust
Don't invoke classic NIST_KW in case PSA gains support for NIST_KW.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 10:08:10 +01:00
Gilles Peskine
e09aeb4923 Remove redundant NIST_KW checks in cipher_auth_xxcrypt()
The internal functions mbedtls_cipher_aead_{encrypt,decrypt} reject
unsupported algorithms, so there's no need for an additional check in
the legacy wrappers.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 10:07:26 +01:00
Gilles Peskine
70edd689a8 cipher_auth_xxcrypt(): fix some null pointer handling
Make sure that if a buffer is allowed to be empty, a null pointer is
accepted if the buffer length is 0. This was already the case for most
but not all arguments to mbedtls_cipher_auth_{en,de}crypt{,_ext}.

Make sure to pass NULL for an empty buffer in the tests.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 09:58:26 +01:00
Manuel Pégourié-Gonnard
513c243317 Deprecate mbedtls_cipher_auth_xxcrypt()
This temporarily breaks all.sh '*deprecated*' (deprecated functions still used
in the library), which will be fix in the next commit.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-12-03 12:25:09 +01:00
Manuel Pégourié-Gonnard
f2ffbc4387 Stop supporting NIST_KW in cipher_auth_xxcrypt()
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-12-03 12:25:09 +01:00
Manuel Pégourié-Gonnard
faddf98bea Implement cipher_auth_{en,de}crypt_ext()
Work in progress: next step is to test it!

Extract the part that is common with non-ext version to a new internal
function. (We can't just use the non-ext version for that, as it's going to be
deprecated.)

Currently the NIST_KW part is somewhat duplicated between the ext
and non-ext versions, but that's OK because it will soon be removed from the
non-ext version.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-12-03 10:42:46 +01:00