Commit Graph

4264 Commits

Author SHA1 Message Date
David Brown
be380c1e0f Remove incorrect PSA ECB definition
There is no PSA ALG_ECB, only ALG_ECB_NO_PADDING.  Fix one incorrect
declaration, and remove another that is just redundant.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
8de6437bb6 Cleanup PSA CBC padding defines
Only define MBEDTLS_CIPHER_MODE_CBC if one of the CBC modes is requested
and everything isn't covered by an accelerated version.  This keeps this
from being defined in cases where everything needed would be
accelerated.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
86730a8d50 Add missing MBEDTLS_PSA_BUILTIN for ChaCha20-Poly1305
Add these missing definitions when this configration is chosen.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
fc46818eeb Cleanup PSA ifdefs for CBC block mode
Try to make these definitions clearer given the complexity of the
mapping between the PSA config options and the MBEDTLS ones.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
10cb81c0a0 Add some missing MBEDTLS_PSA_BUILTIN_ definitions
Add a few instances where the builtin macros for these algorithms were
missed.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
f84a0f691e Simplify block cipher PSA definitions
If any of the software block ciphers are selected, define an internal
macro to indicate this.  This eliminates some redundancy that needs to
check for this.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
e1f91f07cd Consolidate PSA ifdefs for block ciphers
Combine some separate ifdef blocks to make it clearer when various
internal values are defined.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
18658a7896 Disable error on CHACHAPOLY misconfiguration
As the test tries this in multiple configurations, an #error here will
fail CI.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
ac4fa07fa3 Add PSA config support for ChaCha20+Poly1305
Add checks for PSA_WANT_ALG_CHACHA20_POLY1305.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
b16727a603 Add PSA config for ChaCha20
Add checks for PSA_WANT_KEY_TYPE_CHACHA20, both with and without
MBEDTLS_PSA_CRYPTO_CONFIG.  This only adds support for the ciphers
itself, presumably as a stream cipher (and not yet AEAD).

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
b781f75401 Define SW crypto algorithms if block modes need it
Even if there is an accelerated version of a (block) key type, enable
the SW implementation if there are block modes that don't have
acceleration.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
5256e69cda Fix typo in psa config comment
Change "are" to "aren't" to avoid making the comment misleading.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:25:34 -07:00
David Brown
4b9ec7a598 Add checks for HW acceleration of ciphers and padding
Add additional ifdef checks in the PSA config to detect when an
algorithm is entirely implemented in hardware.  If there is any
combination of cipher and padding type that is not supported by the HW
acceleration, enable the SW acceleration.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
12f45f99da Add definitions for builtins for cipher modes
Create these definitions for the various cipher modes.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
da7dbb72ed Add building definitions for non-crypto-config case
Ensure that the builtin definitions are defined when selected by the
traditional configuration options.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
bc1731b24e Fix small error in a comment
Use '||' instead of 'or' for consistency.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
db003f31fc Remove unused definition
PSA defines CBC with no padding, and CBC with PKCS7 padding.  The bare
"ALG_CBC" is not defined, so remove this definition.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
78a429b89a Add _BUILTIN defines for new features
For the new features conditionalized on MBEDTLS_PSA_ACCEL_..., define a
correlated MBEDTLS_PSA_BUILTIN_... if it is not defined.  This prevents
check_names from considering these new defines as typos.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
9984427b4a Add feature support for block modes to PSA crypto config
Add support for supported block modes using the PSA crypto config.
These are mapped to Mbed TLS config options as best as possible.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
a9f1d83d31 Add symmetric ciphers and block modes
Update the psa/crypto_config.h with the newly defined PSA_WANT_
definitions for symmetric ciphers and block modes.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
b65a7f7b52 Add feature support for DES for PSA crypto config
Basic support for enabling DES through PSA_WANT_KEY_TYPE_DES.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
686e6e83d3 Add feature support for Camelia for PSA crypto config
Basic support for enabling Camelia through PSA_WANT_KEY_TYPE_CAMELIA.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
ec258cfae1 Add feature support for ARC4 for PSA crypto config
Basic support for enabling ARC4 through PSA_WANT_KEY_TYPE_ARC4.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
David Brown
949330827c Add feature support for AES for PSA crypto config
Basic support for enabling AES through PSA_WANT_KEY_TYPE_AES.

Signed-off-by: David Brown <david.brown@linaro.org>
2021-02-16 13:24:19 -07:00
Gilles Peskine
996f2168b6 Make it possible to include psa_crypto_random_impl.h with psa_util.h
There was some intentional duplication between
library/psa_crypto_random_impl.h and include/mbedtls/psa_util.h, with
the intent that the compiler would complain if one file was edited in
a way that's incompatible with the other file. However, the two files
were never included together, and in fact could not be included
together because some definitions can't be duplicated (type, static
variable).

Now library/psa_crypto_random_impl.h includes
include/mbedtls/psa_util.h, so the compiler will check what it can.
There is less redundancy since it isn't always possible to declare
something twice (specifically, types can't be declared).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-16 16:50:00 +01:00
Gilles Peskine
2cff7e2a59 Minor clarification in the public documentation
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-16 16:49:42 +01:00
Gilles Peskine
e3ed802138 Expose mbedtls_psa_get_random()
Expose whatever RNG the PSA subsystem uses to applications using the
mbedtls_xxx API.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-16 15:39:48 +01:00
Gilles Peskine
bb86d0c61c
Merge pull request #3995 from stevew817/feature/psa_configurable_static_ram_usage
Allow tweaking PSA_KEY_SLOT_COUNT
2021-02-16 12:52:24 +01:00
Steven Cooreman
863470a5f9 Rename PSA_KEY_SLOT_COUNT to MBEDTLS_PSA_KEY_SLOT_COUNT
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-02-15 14:26:44 +01:00
Steven Cooreman
1f968fdf19 Define the user-configurable PSA config flag in config.h
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-02-15 14:26:30 +01:00
Ronald Cron
5cd00d28bf
Merge pull request #4092 from ronald-cron-arm/psa-crypto-client
Psa crypto client
2021-02-15 10:46:35 +01:00
Bence Szépkúti
a63b20d28b Rename AEAD tag length macros
This brings them in line with PSA Crypto API 1.0.0

PSA_ALG_AEAD_WITH_DEFAULT_TAG_LENGTH -> PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG
PSA_ALG_AEAD_WITH_TAG_LENGTH         -> PSA_ALG_AEAD_WITH_SHORTENED_TAG

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-02-11 11:39:31 +01:00
Ronald Cron
395889f9b7 psa: Make sure MBEDTLS_PSA_CRYPTO_CLIENT is defined
Make sure MBEDTLS_PSA_CRYPTO_CLIENT is defined
when MBEDTLS_PSA_CRYPTO_C is defined and guard
PSA client code only with MBEDTLS_PSA_CRYPTO_CLIENT.

The definition of MBEDTLS_PSA_CRYPTO_CLIENT is done
in crypto_types.h before the definition of
psa_key_attributes_t. That way as PSA crypto client
code is related to key attributes we can be quite
confident that MBEDTLS_PSA_CRYPTO_CLIENT will be
defined when needed.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-09 15:36:08 +01:00
Gilles Peskine
2fa6b5f503 ECC import: more useful choice of INVALID_ARGUMENT vs NOT_SUPPORTED
Attempting to create an ECC key with a curve specification that is not
valid can plausibly fail with PSA_ERROR_INVALID_ARGUMENT ("this is not
a curve specification at all") or PSA_ERROR_NOT_SUPPORTED ("this may
be a curve specification, but not one I support"). The choice of error
is somewhat subjective.

Before this commit, due to happenstance in the implementation, an
attempt to use a curve that is declared in the PSA API but not
implemented in Mbed TLS returned PSA_ERROR_INVALID_ARGUMENT, whereas
an attempt to use a curve that Mbed TLS supports but for which support
was disabled at compile-time returned PSA_ERROR_NOT_SUPPORTED. This
inconsistency made it difficult to write negative tests that could
work whether the curve is implemented via Mbed TLS code or via a
driver.

After this commit, any attempt to use parameters that are not
recognized fails with NOT_SUPPORTED, whether a curve with the
specified size might plausibly exist or not, because "might plausibly
exist" is not something Mbed TLS can determine.

To keep returning INVALID_ARGUMENT when importing an ECC key with an
explicit "bits" attribute that is inconsistent with the size of the
key material, this commit changes the way mbedtls_ecc_group_of_psa()
works: it now works on a size in bits rather than bytes, with an extra
flag indicating whether the bit-size must be exact or not.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-08 18:43:26 +01:00
Ronald Cron
a0832d47f7
Merge pull request #3958 from gilles-peskine-arm/fix-tls12-constant-namespace
Fix some PSA-related identifiers
2021-02-05 16:34:26 +01:00
Gilles Peskine
d945871c55
Merge pull request #3872 from gabor-mezei-arm/3275_use_PSA_ERROR_DATA_INVALID_where_warranted
Use PSA_ERROR_DATA_INVALID where warranted
2021-02-03 20:54:46 +01:00
Gilles Peskine
51b8bb01cb PSA_KEY_TYPE_DERIVE is always available
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
b65db07ae8 Add missing declaration of SHA-224 from MBEDTLS_SHA256_C
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Gilles Peskine
47a8933b0f Declare PSA_KEY_TYPE_HMAC as well
HMAC requires both the algorithm and the key type to be effective.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-01 13:19:26 +01:00
Ronald Cron
3768ac12a8 Add MBEDTLS_PSA_CRYPTO_CLIENT configuration option
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-01 13:16:01 +01:00
Gilles Peskine
53943ca434
Merge pull request #3992 from stevew817/feature/ecp_no_fallback
Add a flag for disabling software fallback in ecp.c
2021-01-29 16:08:51 +01:00
Ronald Cron
318515b384
Merge pull request #3984 from gabor-mezei-arm/3268_update_macros_for_ouput_buffer_size_renames
Rename existing support macros for output buffer sizes for PSA Crypto API 1.0.0
2021-01-29 09:31:59 +01:00
gabor-mezei-arm
bdae918cd9
Fix documentation
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-01-28 14:33:10 +01:00
gabor-mezei-arm
86326a9131
Fix possible error codes in the documentation
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-01-26 13:48:26 +01:00
Steven Cooreman
b587313738 Doesn't make sense to have ECP_NO_FALLBACK when there's no ECP_INTERNAL_ALT.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-01-21 13:59:17 +01:00
Steven Cooreman
6226a12acc Documentation update for MBEDTLS_ECP_NO_FALLBACK
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-01-21 13:58:31 +01:00
gabor-mezei-arm
d25ea720fd
Fix rename of output buffer size macros
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-01-21 13:20:21 +01:00
gabor-mezei-arm
cbcec21684
Rename output buffer size macros
Rename existing support macros for output buffer sizes for PSA Crypto API 1.0.0

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-01-21 13:17:25 +01:00
Gilles Peskine
43f958b24d Rename unnamespaced identifiers
Rename the enum constants TLS12_PRF_xxx, which are declared in a
public header but not intended for use in application code, to start
with MBEDTLS_PSA_.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-20 17:42:25 +01:00
Andrzej Kurek
2a54a6fe1c Refactor the variable buffer length config description
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2021-01-11 09:14:21 -05:00
Andrzej Kurek
557289babc Add a missing dependency to config.h
Variable buffer lengths depend on the maximum fragment length extension.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2021-01-11 09:14:15 -05:00
Andrzej Kurek
069fa96cd7 Use size_t instead of uint32_t for ssl I/O buffer lengths
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2021-01-11 09:13:58 -05:00
Steven Cooreman
97b4984657 Add a flag for disabling fallback in ecp.c
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-01-08 16:43:43 +01:00
Gilles Peskine
a51e1dbe76
Merge pull request #3895 from gilles-peskine-arm/psa-external-random
Alternative random generator support for PSA
2021-01-06 17:09:11 +01:00
Gilles Peskine
88fa5c463e Minor documentation improvements
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-04 21:00:53 +01:00
Cédric Meuter
f3fab33147 Removed the mode argument from mbedtls_rsa_rsassa_pss_sign_ext()
- This mode argument was deprecated in the original function.

Signed-off-by: Cédric Meuter <cedric.meuter@gmail.com>
2020-12-24 09:54:10 +01:00
Cédric Meuter
010ddc2b62 Integrated feedback of first code review
- Fixed code style.
- Clarified the documentation of what happens when saltlen is set to
  MBEDTLS_RSA_SALT_LEN_ANY.
- Added range check on saltlen to reject out of range values.

(Code review done by @gilles-peskine-arm)

Signed-off-by: Cédric Meuter <cedric.meuter@gmail.com>
2020-12-24 09:53:04 +01:00
Cedric Meuter
8aa4d75ec9 Introduced mbedtls_rsa_rsassa_pss_sign_ext(..., saltlen, ...)
extension of mbedtls_rsa_rsassa_pss_sign() with an extra argument
'saltlen' which allows to inject the length of the salt to the function,
as opposed to the original function which internally computes the
maximum possible salt length. If MBEDTLS_RSA_SALT_LEN_ANY is passed
the function falls back to the the original behaviour. The original
function mbedtls_rsa_rsassa_pss_sign() can simply defer to it.

This allows to make some CAVP PSS generation tests that require the use
of a salt length which is smaller that the hash length.

Signed-off-by: Cédric Meuter <cedric.meuter@gmail.com>
2020-12-24 09:51:47 +01:00
Manuel Pégourié-Gonnard
575ece0eed
Merge pull request #3576 from gilles-peskine-arm/psa-lifetime-persistence-indicator-tweaks
Tweak documentation about lifetimes
2020-12-15 10:17:39 +01:00
Gilles Peskine
0bb257096a Copyediting
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-14 17:36:02 +01:00
Gilles Peskine
e39bdaa0ed Specialize some wording from the specification
Some of the material was originally the PSA specification, and
discusses how different implementations might behave. Replace such
statements by a description of how Mbed TLS behaves.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-11 18:47:55 +01:00
Gilles Peskine
9b3e5a7b3e Clarify the explanation of locations
It's about who has access to the key material in plaintext, not directly
where the operation is performed.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-11 18:47:11 +01:00
Janos Follath
f3c856536b
Merge pull request #789 from ARMmbed/mbedtls-2.25.0r0
Merge release candidate back to development
2020-12-11 14:36:29 +00:00
Manuel Pégourié-Gonnard
a27a4e2f18
Merge pull request #3929 from gilles-peskine-arm/psa-driver-remove-old-accel
Remove old proposed accelerator interfaces
2020-12-10 11:31:47 +01:00
Janos Follath
0cbdc61171 Bump version to Mbed TLS 2.25.0
Executed ./scripts/bump_version.sh --version 2.25.0 --so-crypto 6

Increasing the SO version of the crypto library, because the openless
API improvement came with API/ABI incompatibilities. For example
    - the size of psa_key_handle_t changed
    - the type of a parameter in 18 public functions has changed from
      psa_key_handle_t to mbedtls_svc_key_id_t

Signed-off-by: Janos Follath <janos.follath@arm.com>
2020-12-09 15:05:22 +00:00
Janos Follath
a946dcf8b2 Merge branch 'development-restricted' into mbedtls-2.25.0r0-pr 2020-12-08 20:59:45 +00:00
Gilles Peskine
2b759626a9
Merge pull request #3948 from bensze01/update_psa_values
Update the values of PSA Crypto API macros to version 1.0.0
2020-12-08 11:03:33 +01:00
Bence Szépkúti
99ffb2b275 Simplify description of PSA_ALG_STREAM_CIPHER
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-12-08 00:09:08 +01:00
Bence Szépkúti
cbe395332c Substitute PSA_ALG_STREAM_CIPHER into all files
Deprecate PSA_ALG_ARC4 and PSA_ALG_CHACHA20.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-12-08 00:01:31 +01:00
Bence Szépkúti
a294551446 Update PSA Crypto macro values to version 1.0.0
This should be everything that's needed for the stable storage format.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-12-07 21:03:05 +01:00
Bence Szépkúti
1de907d4a4 Introduce PSA_ALG_STREAM_CIPHER
This algorithm replaces the pre-existing stream cipher algorithms.
The underlying stream cipher is determined by the key type.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-12-07 21:03:05 +01:00
Gilles Peskine
e995b9b3f0 Clarify statuses from mbedtls_psa_external_get_random
Add and document PSA_ERROR_INSUFFICIENT_ENTROPY.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 20:42:57 +01:00
Ronald Cron
771090659e
Merge pull request #3393 from geecrypt/development
Support set *_drbg reseed interval before seed
2020-12-07 14:29:52 +01:00
Gilles Peskine
3a0535b465
Merge pull request #3916 from jdurkop/psa-crypto-config-hashes-3672
Add support to crypto config for hashes
2020-12-07 13:50:56 +01:00
Manuel Pégourié-Gonnard
b23e31d86a Minor documentation/comment fixes
typos, overlong lines

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-12-07 09:57:35 +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
9cc079db7a Declare cipher_auth_{en,de}crypt_ext()
Work in progress: next steps are to implement and test it.

Compared to the existing non-ext version:

- to separate tag parameter
- explicit output_len parameter

Also, this version will retain support for NIST_KW (hence documents it), while
the non-ext version will lose it in a few commits.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-12-03 10:09:44 +01:00
Manuel Pégourié-Gonnard
3ba84d5bd6 Improve documentation of cipher_auth_xxcrypt()
- Document constraints on buffers/pointers NULLability explicitly.
- Simplify terminology around IV/nonce: all AEADs implemented so far call that
  a nonce. Keep the parameter names (iv, iv_len) to avoid having to change the
code (or having different names in the header and C files).
- Align documentation to the code regarding parameter constraints: the
  documentation said the for ciphers with fixed nonce/tag length, the
iv_len/tag_len arguments were ignored, while the code enforced them to be the
expected value. This is more consistent with what's done with GCM/CCM, which
for tag_len for example accept more than one value, but from a relatively
small set, and will return errors for values outside that set. Accepting a
single value is a particular case of that (the set of acceptable value only
has one element).

Don't document behaviour with NIST KW as we're about to change that.

Note: this function is currently only defined if at least one of GCM, CCM or
ChachaPoly is enabled, even though it's supposed to handle NIST KW as well. No
need to fix this as the function will soon no longer support NIST KW.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-12-03 10:01:28 +01:00
John Durkop
d62b678473 Minor updates to address review comments
Removed unecessary checks on the ALG_SHA_224 and ALG_SHA_384 since
those are handled in config_psa.h by ensuring the correct _C is
included. Reformatted config_psa.h to be alphabetical and made the
assignments line up correctly for consistency. Fixed the guards
for ALG_SHA_224 and ALG_SHA_384 to be correct in the crypto library
source.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-30 21:06:05 -08:00
Gilles Peskine
db6b03b4f2 Remove old-style accelerator and entropy driver interfaces
The driver interfaces described in crypto_accel_driver.h and
crypto_entropy_driver.h are no longer being worked on. We do not
intend to finish the design of these interfaces or to implement them
in Mbed TLS. They have been superseded by the unified driver
interface (docs/proposed/psa-driver-interface.md), which is being
actively worked on both to finalize the specification and to implement
it in Mbed TLS.

The partially implemented dynamic secure element interface is staying
for now.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-30 17:37:14 +01:00
Gilles Peskine
b0a748e340 Copyediting
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-30 12:01:54 +01:00
Bence Szépkúti
d4585ff3c5 Fix removal of deprecated PSA constants
Due to a misplaced #endif, the (non-functional) macro definitions were
not properly removed from crypto_compat.h if MBEDTLS_DEPRECATED_REMOVED
was declared.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-11-27 17:52:56 +01:00
John Durkop
fb764a60b9 Add hashes as crypto config by default
This change adds in all the hashes to the crypto config
by default.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-27 08:43:28 -08:00
Gilles Peskine
2cecfbab8a Support PSA_WANT_xxx and MBEDTLS_PSA_BUILTIN_xxx for hashes
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-27 08:18:47 -08:00
Gilles Peskine
cd1495c037 In old-style PSA configuration, define PSA_WANT_xxx
When MBEDTLS_PSA_CRYPTO_CONFIG is disabled, if an Mbed TLS crypto
feature is enabled, declare the corresponding PSA feature as enabled,
in addition to enabling its software implementation. This is necessary
for code that uses PSA APIs and relies on PSA_WANT_xxx symbols to know
which features are enabled (application code, our library code using
MBEDTLS_USE_PSA_CRYPTO, our test dependencies, etc.).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-27 08:17:29 -08:00
Gavin Acquroff
6aceb51e43 Support set *_drbg reseed interval before seed
mbedtls_ctr_drbg_set_reseed_interval() and
mbedtls_hmac_drbg_set_reseed_interval() can now be called before
their seed functions and the reseed_interval value will persist.
Previously it would be overwritten with the default value.

*_drbg_reseed_interval is now set in init() and free().

mbedtls_ctr_drbg_free() and mbedtls_hmac_drbg_free() now
reset the drbg context to the state immediately after init().

Tests:
- Added test to check that DRBG reseeds when reseed_counter
reaches reseed_interval, if reseed_interval set before seed
and reseed_interval is less than MBEDTLS_CTR_DRBG_RESEED_INTERVAL.

Signed-off-by: gacquroff <gavina352@gmail.com>
2020-11-25 14:25:56 -08:00
gabor-mezei-arm
452b0a32ad Update documentation
The return values of the functions are updated in the documetation.
All possible return values are added including nested functions' return
values. The values which cannot be returned are removed.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2020-11-25 13:10:50 +01:00
gabor-mezei-arm
fe30924c45 Use PSA_ERROR_DATA_INVALID error code
If the file is read correctly, but it contains data that isn't valid,
the crypto storage code returns PSA_ERROR_DATA_INVALID.
The PSA_ERROR_DATA_CORRUPT and PSA_ERROR_STORAGE_FAILURE error codes are
replaced with PSA_ERROR_DATA_INVALID, except in the ITS subsystem.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2020-11-24 13:37:52 +01:00
gabor-mezei-arm
3d8b4f54d3 Add missing error code documentation
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2020-11-24 13:37:52 +01:00
Gilles Peskine
c0963010c0 Document mbedtls_psa_external_random_context_t
Note that the implementation here is just a sample, and integrators
are expected to replace it with whatever they need.

But do try to supply a definition that can be somewhat useful (give
room for pointer+size).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 17:42:54 +01:00
Gilles Peskine
b663a60140 Note the expectations on mbedtls_psa_external_get_random()
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 17:42:54 +01:00
Gilles Peskine
89ffb28051 Fix option compatibility check
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 17:42:54 +01:00
Gilles Peskine
14c332baee Fix a Doxygen warning
We generate the Doxygen documentation in a configuration where part of
config.h is excluded. See
https://github.com/ARMmbed/mbedtls/issues/520
```
/var/lib/build/include/mbedtls/config.h:3635: warning: documentation for unknown define MBEDTLS_PSA_HMAC_DRBG_MD_TYPE found.
```

This is a more general issue and fixing it is out of scope of my
current work. Therefore, just do something simple to silence Doxygen,
and never mind that this causes the documentation of
`MBEDTLS_PSA_HMAC_DRBG_MD_TYPE` to be omitted from the rendered
documentation. We'll fix that when we fix all the configuration macros
with a similar problem.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 17:42:54 +01:00
Gilles Peskine
ed03890281 PSA: allow the configuration to favor HMAC_DRBG
Allow the user to configure PSA to use HMAC_DRBG even if CTR_DRBG is
available, or to explicitly select the hash algorithm to use for
HMAC_DRBG, by setting MBEDTLS_PSA_HMAC_DRBG_MD_TYPE in config.h.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 17:42:54 +01:00
Gilles Peskine
82e57d1611 PSA: support HMAC_DRBG
Support using HMAC_DRBG instead of CTR_DRBG in the PSA subsystem.

Use HMAC_DRBG if CTR_DRBG is available. Choose between SHA-256 and
SHA-512 based on availability.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 17:42:54 +01:00
Gilles Peskine
4fc21fdeb6 Implement MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG
Implement support for MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG.

For test purposes, write an implementation that uses libc rand().

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 17:42:54 +01:00
Gilles Peskine
b8af22858d Autonomous random driver: declare the type and function
Define a sample type mbedtls_psa_external_random_context_t in
psa/crypto_platform.h and define the prototype of
mbedtls_psa_external_get_random() in a public header.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 16:28:09 +01:00
Gilles Peskine
f08b3f8624 Autonomous random driver: create configuration option
Create a configuration option for autonomous random drivers, i.e. PSA
crypto drivers that provide a random generator, that have their own
entropy source and do not support injecting entropy from another
source.

This commit only creates the configuration option. Subsequent commits
will add the implementation and tests.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 16:28:09 +01:00
Gilles Peskine
383c245142 Move "internal use" sentence attached to the wrong function
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-22 13:59:43 +01:00
Gilles Peskine
662deb38d6
Merge pull request #3547 from ronald-cron-arm/psa-openless
Openless PSA crypto APIs implementation
2020-11-20 18:48:33 +01:00
Ronald Cron
1d12d87d18 Improve/fix documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-20 13:57:15 +01:00
Ronald Cron
1ad1eeeaf1 psa stats: Count locked slots instead of unlocked ones
Count locked slots and not unlocked ones to
align with the other statistics counters.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-19 16:59:40 +01:00
Ronald Cron
5c522920ba psa: Rename functions to get a key slot
Rename functions to get a key slot:
. to make their naming more consistent
. to emphasize that those functions set a lock on the
  key slot they return to protect it from being wiped
  out and re-used while some part of the library
  is accessing it.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-19 16:59:40 +01:00
Gilles Peskine
9a68810405
Merge pull request #3830 from jdurkop/psa-crypto-config-phase2
Phase 2 support for MBDTLS_PSA_CRYPTO_CONFIG
2020-11-19 09:32:23 +01:00
John Durkop
07cc04a8ad Updates to PSA crypto library based on review comments
Moved new check_crypto_config.h file from include/psa to library
directory and the file is now included from *.c instead of the
crypto_config.h file. Fixed guards in PSA crypto library based
on review comments for new PSA crypto config features.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-18 08:09:49 -08:00
John Durkop
b6f7afcb5c Move check config feature for PSA_WANT
Moved from doing the dependency checks for MBEDTLS_PSA_BUILTIN to
checking the PSA_WANT macros for the dependency checks. This required
moving the file into the include/psa directory and having the file be
included by crypto_config.h instead of config_psa.h.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-12 11:39:07 -08:00
John Durkop
6ba40d1faa Corrected guards in PSA library based on review comments
Revised the placement of various new MBEDTLS_PSA_BUILTIN_xxx
guards based on review comments. Corrected guards in psa
test driver to use _ACCEL version instead of _BUILTIN version.
Updated check_config_psa.h to include additional dependency checks
for more algorithms. Renamed some of the new tests to be a little
more clear on the purpose.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-12 10:21:40 -08:00
Ronald Cron
77c89f5ad6 Fix several typos
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-11 15:12:14 +01:00
Ronald Cron
0c3752a46b psa: slot mgmt: Add unaccessed slots counter in stats
Add a counter of unaccessed slots and use it
in tests to check that at the end of PSA tests
all key slot are unaccessed.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 18:19:59 +01:00
Ronald Cron
d98059d599 psa: Fix tests/handling of lifetime incompatible with location
The lifetime of key attributes now encodes whether a key is
volatile/persistent or not AND its location.
Fix PSA code where the fact that the lifetime encodes
the key location was not taken into account properly.

Fix the impacted tests and add two non regression tests.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 18:18:15 +01:00
Ronald Cron
4067d1c1e5 psa: Improve key creation documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:18:07 +01:00
Ronald Cron
967835596c psa: Fix references to macros in comments
This commit tries to fix the usage of #MACRO_NAME
to reference macros in comments.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:18:07 +01:00
Ronald Cron
6b5ff53c01 Add mbedtls_set_key_owner_id API
Add the mbedtls_set_key_owner_id API,
API specific to the MbedTLS PSA implementation.
The API allows to define the owner of
volatile keys.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:18:07 +01:00
Ronald Cron
5425a21fd2 tests: Adapt PSA tests to openless APIs
psa_key_handle_equal() is removed as not used
anymore.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron
c3623dbc76 State PSA_CRYPTO_KEY_ID_ENCODES_OWNER and USE_PSA_CRYPTO incompatibility
Code under MBEDTLS_USE_PSA_CRYPTO define is PSA client
code intended to use key identifiers of type psa_key_id_t.
Thus the MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
configuration option is incompatible with
MBEDTLS_USE_PSA_CRYPTO.

State this in config.h and check_config.h.

As a consequence:
. remove MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER from
  the full configuration, as MBEDTLS_USE_PSA_CRYPTO is
  part of it.

. add a new component in all.sh to keep testing the
  library when MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
  is set.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron
277a85f1ef Add psa_purge_key API
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron
cf56a0a320 psa: Move from key handle to key identifier
Move all the PSA crypto APIs using key handles
to use key identifiers but psa_key_open() and
psa_key_close(). This is done without modifying
any test as key handles and key identifiers are
now the same.

Update the library modules using PSA crypto APIs
to get rid of key handles.

Programs and unit tests are updated to not use
key handles in subsequent commits, not in this
one.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron
c4d1b514ab Define handles as key identifiers
Define psa_key_handle_t to be equal to
mbedtls_svc_key_id_t. Make the handle of a persistent
key be equal to its key identifier. For volatile keys,
make the key handle equal to the volatile key
identifier of the created volatile key.

The unit tests are modified just to make them compile
not to make them run successfully. They are fixed in
the subsequent commits.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron
47a85614ed Introduce psa_key_handle_equal inline function
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron
c26f8d467a Introduce psa_key_handle_is_null inline function
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron
91e9515424 Introduce PSA_KEY_HANDLE_INIT macro
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
John Durkop
9814fa2b08 Minor updates from review comments
Updated macros in config_psa.h that used ECC_xxx to use KEY_TYPE_ECC_xxx
per comments from review. Implemented a check_config_psa.h to help with
dependency checking of features enabled in config_psa.h. Added
check_config_psa.h to visual studio project.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:11:41 -08:00
John Durkop
7fc75eac21 Enable all features in crypto_config.h
In order to pass existing tests like test_psa_crypto_config_basic
and test_psa_crypto_config_no_driver, all the new features need
to be enabled in the default crypto_config.h file. This change
enables those features by default and updates the other new
tests to compensate for everything being enabled by disabling
some features for some of the tests as needed.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:11:41 -08:00
John Durkop
0e00519711 Add feature support for RSA for PSA crypto config
In the original attempt to add RSA support to PSA crypto config was too
generic. This set of changes adds support for the following RSA features:
PSA_WANT_ALG_RSA_PKCS1V15_CRYPT, PSA_WANT_ALG_RSA_PKCS1V15_SIGN,
PSA_WANT_ALG_RSA_OAEP, PSA_WANT_ALG_RSA_PSS, PSA_WANT_KEY_TYPE_RSA_KEY_PAIR,
and PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY.

There were also some updates to ensure the proper inclusion of PSA crypto
library code when certain features are enabled. These updates were made to
address warnings and errors in builds from the new tests for these
features being added for PSA crypto configuration.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:11:41 -08:00
John Durkop
f4c4cb008c Added additional support for ECP for PSA_CRYPTO_CONFIG
The KEY_TYPE_ECC_KEY_PAIR and KEY_TYPE_ECC_PUBLIC_KEY were previously
being guarded by MBEDTLS_ECP_C in the PSA crypto library code. This change
moves it to the new MBEDTLS_PSA_BUILTIN_xxx and separates KEY_PAIR
and PUBLIC_KEY as needed. Tests have also been added to validate the new
settings.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:11:35 -08:00
John Durkop
d032195278 Phase 2 support for MBEDTLS_PSA_CRYPTO_CONFIG
This phase adds in support for the following features being
added to the list of features that can be configured in the
include/psa/crypto_config.h header file using the PSA_WANT_ALG_xxx
macros: ECDH, HMAC, HKDF, and RSA. These changes include changes to
the PSA crypto library to use the appropriate new guards that
will allow the feature to be compiled in or out either using
new PSA_WANT_ALG_xxx or the previous MBEDTLS_xxx macros.

For HKDF and HMAC, most of the PSA library code did not have a
specific matching MBEDTLS_xxx macro for that feature, but was instead
using the generic dependent MBEDTLS_MD_C macro. The ECDH and RSA
features more closely aligned with a direct replacement with a similar
macro.

The new tests for RSA, HMAC, and HKDF would normally unset additional
dependent macros, but when attempting to implement that level of
testing it required removal of too many core features like MD_C, PK_C,
ECP_C and other low level features. This may point to additional phases of
work to complete the transition of these features to the new model.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-11-10 06:10:29 -08:00
Gilles Peskine
58858b7ce4 Document that MBEDTLS_PSA_CRYPTO_CONFIG requires config_psa.h
Document that enabling MBEDTLS_PSA_CRYPTO_CONFIG requires including
mbedtls/config_psa.h from the configuration file (mbedtls/config.h or
MBEDTLS_USER_CONFIG_FILE).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-09 15:26:09 +01:00
Gilles Peskine
a26b3e56cb Only include config_psa.h from config.h with new-style PSA configuration
In old-style configuration, do not include mbedtls/config_psa.h from
mbedtls/config.h.

The inclusion should not and did not break any code, but it caused our
testing to miss a break of backward compatibility (fixed in "Include
config_psa.h from psa/crypto.h"). If users have their own config.h
which enabled MBEDTLS_PSA_CRYPTO_C and worked prior to the creation of
config_psa.h and MBEDTLS_PSA_CRYPTO_CONFIG, their config.h must keep
working. By including config_psa.h from config.h in the legacy case,
we weren't testing the legacy configuration mechanism adequately.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-09 15:25:17 +01:00
Gilles Peskine
bce4dc028f Include config_psa.h from psa/crypto.h
When the new PSA crypto configuration mechanism MBEDTLS_PSA_CRYPTO_CONFIG
is disabled, legacy configurations must keep working, even if they don't
include the new header file mbedtls/config_psa.h. Code that uses or
implements PSA crypto interfaces needs some of the symbols defined by the
new header file. Therefore, include the new header file via PSA crypto
headers, which are included everywhere mbedtls/config_psa.h is needed.

Include it early, in psa/crypto_platform.h, just after including
mbedtls/config.h, so that its symbols are available wherever the symbols
from mbedtls/config.h is available.

This fixes the unit tests with configs/config-psa-crypto.h: some unit
tests were failing, revealing that library features controlled with
the new symbols were no longer getting built.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-09 15:17:07 +01:00
Gilles Peskine
52f32c913e
Merge pull request #3787 from bensze01/iv_nonce_size
PSA: Add support macros for IV/nonce sizes
2020-10-30 09:45:11 +01:00
Bence Szépkúti
423d3e7fcf Update support macros for IV/nonce sizes
This commit defines the following new macros added to the PSA Crypto API
between versions 1.0 beta 3 and 1.0.0 final:

PSA_AEAD_NONCE_LENGTH
PSA_AEAD_NONCE_MAX_SIZE
PSA_CIPHER_IV_LENGTH
PSA_CIPHER_IV_MAX_SIZE

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-10-29 11:07:39 +01:00
Johan Pascal
2258a4f481 Do not return a structure, use a return parameter
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal
0dbcd1d3f0 Make API safer
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal
20c7db3a67 API modified so server side can get mki value
+ client side discards self mki if server does not support it

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal
76fdf1d60e Minor fix and improvements
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal
d387aa0586 style + missing cast
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal
842d671316 Update include/mbedtls/config.h
Co-authored-by: Hanno Becker <hanno.becker@arm.com>
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
aae4d22b16 Improve code readability
+micro optimization
+style

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
e79c1e8121 style
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
a455cd9a47 mbedtls_ssl_get_srtp_profile_as_string declared and defined in ssl.h
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
f6417ecf60 mki length feats in a uint16_t
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
253d0263a6 set protection profile API gets a MBEDTLS_TLS_SRTP_UNSET terminated list
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
43f9490a52 SRTP profiles definition use macros only
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
9bc97ca19d SRTP-DTLS protection profile configuration list not copied into ssl_config
+ improve test
+ minor style fix

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
8526957cd5 Minor style modifications
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
65b56ef87f Change key derivation for srtp
Use the export keys functionality, to call the public API
`mbedtls_ssl_tls_prf()`, and remove the function
`mbedtls_ssl_get_dtls_srtp_key_material()`.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
9cfb5ebff1 Disable SRTP by default
Disable `MBEDTLS_SSL_DTLS_SRTP` by default in the configuration file.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
f0f7c19457 Add comment describing the feature
Add a comment that describes that the feature only supportes the
`use_srtp` extension, and not hte full DTLS-SRTP RFC.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
089c9fe9fa Improve readability
Improve readability of the code:
1. move common code to `ssl_internal.h` as `static inline`.
2. Add comments.
3. Use local variables for extension size.
4. Change function signature, by adding buffer size and output length.
5. Take server srtp profile out of the loop.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
a978804a1b Style fixes
1. Fix indentations.
2. Remove redundant whitespaces.
3. Keep short lines.
4. Grammar fixes.
5. Rephrase function description.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
ef72faf2bb Style fixes
1. Adjust to 80 colums where possible.
2. Add \ remove spaces where needed.
3. Fix alignments.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
311b95aafe Fix compilation errors
Fix compilation errors when `MBEDTLS_DTLS_SRTP` not set
1. Add file missed in previous commmit.
2. In sample applications, set `DFL_FORCE_SRTP_PROFILE` to 0.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
9e9096476e Fix doxygen script errors
Fix errors raised by doxygen.sh test script

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
349877e948 Fix idetifier check script error
Fix script error for identifier check

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
a37326abb1 Make keyu material length in \ out
Make the key material length in mbedtls_ssl_get_dtls_srtp_key_material
to be in\out, like it is done all over the library

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
591f162bed support mki value
Add support mki value in the DTLS-SRTP

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor
3adb9928f3 Add mki value and some review comments
1. Add check for prerequisites in check_config.h
2. Add mki value to use_srtp extension
3. address some review comments

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
701984d300 Comply with mbedtls naming rules
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
c28f1f600e Fix typos in documentation
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
2d9470be76 Improve DTLS SRTP API with a dedicated function to get generated keys
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
bbc057af73 Move available dtls srtp profile list to ssl_config
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal
b62bb51aff Add RFC5764 - SRTP key generation during DTLS handshake
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
John Durkop
f87e3aea16 Update guards in PSA crypto library for ECDSA and DETERMINISTIC support
In the PSA crypto library, the code for verification of ECDSA is the same for
both MBEDTLS_PSA_BUILTIN_ALG_ECDSA and
MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA. So, the guards should allow for
either one to enable the code blocks. The original implementation only had
the check for ECDSA. In order to make this work, config_psa.h was updated
to ensure when MBEDTLS_CRYPTO_CONFIG is disabled, the setting for DETERMINISTIC
is only updated if MBEDTLS_ECDSA_C is also enabled.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-26 15:25:23 -07:00
John Durkop
36a82e5a6b Ensure MBEDTLS_ECDSA_C is set when DETERMINISTIC_ECDSA is used
Ensure that MBEDTLS_ECDSA_C is set when PSA_WANT_ALG_DETERMINISTIC_ECDSA
is requested. Also added MBEDTLS_ECDSA_C to the requirements comment in
config.h for MBEDTLS_ECDSA_DETERMINISTIC.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-26 09:39:05 -07:00
John Durkop
6dff93ff9b Ensure dependent features also included by config_psa.h
When the PSA crypto features need to be setup based on the
PSA_WANT_xxx macros, the dependent features also need to be
enabled. This change corrects that for the MBEDTLS_ECDSA_DETERMINISTIC.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-23 01:22:58 -07:00
John Durkop
0ea39e0ee4 Correct use of MBEDTLS_PSA_BUILTIN_ALG_xxx in crypto library
The psa crypto library was generically using PSA_WANT_ALG_xxx, but
should have been using the correct MBEDTLS_PSA_BUILTIN_ALG_xxx
definition since that code is the builtin version. There were also
a couple of spots that needed to ensure the code block was enabled
for either ECDSA or DETERMINISTIC_ECDSA, not just one of them.

Fixed all the new ALG_ECDSA_DETERMINISTIC names to be
ALG_DETERMINISTIC_ECDSA instead.

Fixed test to use correct definitions.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-15 07:39:02 -07:00
John Durkop
7b453130e2 Updates to fix check-names and all.sh tests after review
Need to make sure the new MBEDTLS_PSA_ACCEL_XXX defines are not checked
since they should be defined by the PSA driver. Updated the list-macros.sh
script to modify the instances of those found to match the corresponding
MBEDTLS_PSA_BUILTIN_XXX that are defined in config_psa.h

Fixed definition of MBEDTLS_PSA_BUILTIN_ALG_ECDSA_DETERMINISTIC, name was
incorrect. Also fixed a missing space in the comments of crypto_config.h

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-12 21:56:26 -07:00
John Durkop
c7c03b7d17 Enhanced documentation for crypto_config.h
Provided more detailed documentation for crypto_config.h file so it
is clear to users can enable cryptographic mechanisms using
PSA_WANT_XXX. If MBEDTLS_PSA_CRYPTO_CONFIG is not set the settings in
this file are not used.

Ensure that defines used in this file are set to 1 and not simply defined
per the specification. Also removed the __cplusplus guards since they are
not needed for this file.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-12 21:42:03 -07:00
John Durkop
348188229a Correct inclusion of MBEDTLS_XXX based on PSA_WANT_XXX
Provied a more detailed description for the config_psa.h header file.
This new description makes it clear that the file should not be edited
by users or integrators. Relevant changes should be made to
psa/crypto_config.h instead.

Fixed the logic for the inclusion of MBEDTLS_PSA_BUILTIN_XXX to be set
when PSA_WANT_ALG_XXX and MBEDTLS_PSA_ACCEL_ALG_XXX is not defined,
otherwise the MBEDTLS_XXX should be set.

Ensure that MBEDTLS_PSA_BUILTIN_XXX is set to 1 and not simply defined
per specification.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-12 21:36:22 -07:00
John Durkop
185764f5f4 Enhance description for MBEDTLS_PSA_CRYPTO_CONFIG
Provided detailed description for MBEDTLS_PSA_CRYPTO_CONFIG so that it is
more clear to the user when the feature should be enabled or disabled.
It also mentions where to look for PSA crypto config settings;
include/psa/crypto_config.h. Removed some other related comments that
were not necessary.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-12 21:32:12 -07:00
John Durkop
76228acfb9 Fix typo in define in comment
This fixes error in check-names.sh test.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-29 22:33:49 -07:00
John Durkop
714e3a1318 Minor cleanup to fix errors with some unit tests
With the new feature MBEDTLS_PSA_CRYPTO_CONFIG, needed to
add support that when the feature is disabled, if there
are defines like MBEDTLS_ECDSA_C defined, then the PSA_WANT_
equivalent define is also enabled. This ensures the guards in
the library psa_crypto will work properly.

Also fixed an error return code in the driver wrapper for cipher
encrypt setup so it will properly pass unit tests.

Ensured config.py full works properly with the new
MBEDTLS_PSA_CRYPTO_CONFIG, it should not be set when the full
option is used.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-29 22:07:04 -07:00
John Durkop
2dfaf9ca23 Update how MBEDTLS_PSA_CRYPTO_CONFIG is handled
Originally, MBEDTLS_PSA_CRYPTO_CONFIG was being used to allow
inclusion of mbedlts/config_psa.h, but that needed to be updated
so that mbedtls/config_psa.h is always included and the definitions
specific to PSA configuration are now guarded by
MBEDTLS_PSA_CRYPTO_CONFIG. This will allow for the standard setup
to continue working while new PSA configuration items to also work.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-24 05:01:17 -07:00
John Durkop
d8959390c5 Add ECDSA support to PSA crypto configuration
Initial changes to PSA crypto core to support configuration
of ECDSA algorithm using PSA crypto configuration mechanism.
Guards using MBEDTLS_ECDSA_C and MBEDTLS_ECDSA_DETERMINISTIC have
been changed to be based off PSA_WANT_ALG_ECDSA and
PSA_WANT_ALG_ECDSA_DETERMINISTIC. Added new tests to all.sh to
confirm new settings are working properly. Current code does not
pass the tests since built in signature verification is not in place.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-24 05:01:17 -07:00
John Durkop
7758c858ae Update requires for MBEDTLS_PSA_CRYPTO_DRIVERS
In order to test various PSA crypto settings the Requires section
needed updating to require MBEDTLS_PSA_CRYPTO_C or
MBEDTLS_PSA_CRYPTO_CONFIG.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-24 05:01:17 -07:00
John Durkop
6e33dbe9fd Created infrastructure for MBEDTLS_PSA_CRYPTO_CONFIG
In order to prepare for PSA cryptographic mechanism for conditional
inclusion of various modules, there needs to be some updates to
the mbedtls configuration to enable that feature to work. This initial
set of changes just lays the ground work and future changes will
implement the functional features.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-24 05:01:17 -07:00
Gilles Peskine
1d9c11081a
Merge pull request #3667 from Jongy/fix-docs
Fix docs to desribe written-into buffer parameter as writable
2020-09-17 00:02:08 +02:00
Janos Follath
2a25904f45
Merge pull request #3568 from hanno-arm/tls13_experimental_key_schedule_1
TLS 1.3: Add HKDF-based key derivation functionality
2020-09-16 11:40:06 +01:00
Hanno Becker
61baae7c9f Minor fixes and improvements in TLS 1.3 key schedule documentation
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2020-09-16 09:47:47 +01:00
Gilles Peskine
dc57c25e30
Merge pull request #3527 from ronald-cron-arm/key-extended-id
PSA key identifiers rework
2020-09-15 16:06:06 +02:00
Ronald Cron
7424f0d998 psa: Move key identifier related macros and functions
Move key identifier related macros and functions from
crypto_types.h to crypto_values.h as the latter is
the intended file to put them in.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-15 08:50:20 +02:00
Ronald Cron
9a2511e78f Fix key owner identifier documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-15 08:50:20 +02:00
Ronald Cron
5eba579c6c Remove unnecessary inline definition
Define inline for some compiling environment only
in crypto_platform.h.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-15 08:48:15 +02:00
Steven Cooreman
ef8575e1bf Apply review feedback
* Reworked the cipher context once again to be more robustly defined
* Removed redundant memset
* Unified behaviour on failure between driver and software in cipher_finish
* Cipher test driver setup function now also returns early when its status
  is overridden, like the other test driver functions
* Removed redundant test cases
* Added bad-order checking to verify the driver doesn't get called where
  the spec says it won't.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 17:00:47 +02:00
Steven Cooreman
a07b9970c6 Update semantics around driver context use in psa_cipher_setup
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 17:00:39 +02:00
Steven Cooreman
fb81aa5889 Only pass the driver-relevant portion of the context struct
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 16:31:58 +02:00
Steven Cooreman
5240e8b519 Style and language fixes from review
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 16:31:58 +02:00
Steven Cooreman
d3feccd3a5 Restructure cipher context object to contain driver switch
Once an operation has been 'accepted' by a driver, the remainder is bound
to the same driver, since driver-specific context structs cannot be shared.
This provides a pretty good gate mechanism for the fallback logic, too.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 16:31:52 +02:00
Steven Cooreman
37941cb5e1 Add initial pass on a multi-part test driver
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-09-14 16:30:14 +02:00
Gilles Peskine
b1d3f2779b
Merge pull request #3480 from stevew817/feature/aes-ecb
Added support for AES-ECB to the PSA Crypto implementation
2020-09-14 14:45:14 +02:00
Yonatan Goldschmidt
6e2af094b0 Fix docs to desribe written-into buffer parameter as writable
Signed-off-by: Yonatan Goldschmidt <yon.goldschmidt@gmail.com>
2020-09-12 01:24:45 +03:00
Gilles Peskine
2a739c41bd
Merge pull request #3569 from cm6n/fix_mbedtlssslsetbio_description
Fix typo in mbedtls_ssl_set_bio description.
2020-09-11 21:17:37 +02:00
Hanno Becker
2fe043a6d1 Remove guard for TLS 1.3 specific declarations
We only guard the implementations of modules, not their declarations.

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2020-09-09 10:58:53 +01:00
Hanno Becker
9a7a2ac2de Fix typo in ssl_internal.h
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2020-09-09 09:24:54 +01:00
Manuel Pégourié-Gonnard
628ed4e54f
Merge pull request #3592 from d-otte/development
adjusting size of sliding window array to correct size.
2020-09-09 10:00:26 +02:00
Hanno Becker
1588983ef0 Introduce macros for max-{IV,block,key}-size for ciphers used in TLS
See the documentation in ssl_internal.h that this commit introduces
for more information.

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2020-09-08 11:29:11 +01:00
Hanno Becker
493ea7f4ae Remove instances of camelCase in TLS 1.3 key schedule
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2020-09-08 11:08:06 +01:00
Hanno Becker
3385a4d5cf Implement TLS 1.3 traffic key generation
See the documentation in library/ssl_tls13_keys.h.

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2020-09-08 10:28:28 +01:00
Hanno Becker
27a2688fbb Introduce public macro for maximum symmetric cipher key length
This commit introduces the public macro MBEDTLS_MAX_KEY_LENGTH,
which evaluates to an upper bound for the key lengths of all enabled
ciphers, in Bytes.

This is analogous to the already existing macros MBEDTLS_MAX_IV_LENGTH
and MBEDTLS_MAX_BLOCK_LENGTH, which provide upper bounds for the IV
and block length, respectively.

For now, MBEDTLS_MAX_KEY_LENGTH is 32 Bytes by default, and 64 in case
XTS is enabled. This is a strict overapproximation for some restricted
configurations. Ideally, the upper bound should be calculated exactly
and automatically from the list of enabled ciphers. The same applies
to the existing macros MBEDTLS_MAX_IV_LENGTH and MBEDTLS_MAX_BLOCK_LENGTH,
though, and is left for future work.

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2020-09-07 14:34:10 +01:00