Commit graph

2986 commits

Author SHA1 Message Date
Hanno Becker
5359ca8a54 Improve SHA-1 documentation 2018-12-18 11:37:28 +00:00
Andres Amaya Garcia
c523e011e0 Document valid function params for SHA-1 functions 2018-12-18 11:37:28 +00:00
Andres Amaya Garcia
a685d4f28d Add MBEDTLS_ERR_SHA1_BAD_INPUT_DATA to error.{h,c} 2018-12-18 11:37:28 +00:00
Andres Amaya Garcia
f7c43b3145 Add parameter validation to SHA-1 2018-12-18 11:37:28 +00:00
Manuel Pégourié-Gonnard
b66e7dbcc1 Fix some documentation markup/wording issues 2018-12-18 12:22:40 +01:00
Manuel Pégourié-Gonnard
ad54c49e75 Document AES accelerator functions as internal 2018-12-18 12:22:40 +01:00
Manuel Pégourié-Gonnard
2bc535be86 Add parameter validation for AES-CTR 2018-12-18 12:22:40 +01:00
Manuel Pégourié-Gonnard
8e41eb7187 Add parameter validation for AES-OFB 2018-12-18 12:22:40 +01:00
Manuel Pégourié-Gonnard
1677cca54b Add parameter validation for AES-CFB functions 2018-12-18 12:22:40 +01:00
Manuel Pégourié-Gonnard
191af1313a Add param validation for mbedtls_aes_crypt_xts() 2018-12-18 12:22:40 +01:00
Manuel Pégourié-Gonnard
3178d1a997 Add param validation for mbedtls_aes_crypt_cbc() 2018-12-18 12:22:40 +01:00
Manuel Pégourié-Gonnard
1aca260571 Add parameter validation for mbedtls_aes_crypt_ecb() 2018-12-18 12:22:40 +01:00
Manuel Pégourié-Gonnard
68e3dff3f1 Add parameter validation XTS setkey functions 2018-12-18 12:22:40 +01:00
Hanno Becker
6640b0d9a3 Undo deprecation of MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH 2018-12-18 09:53:14 +00:00
Hanno Becker
a034369eca Undo deprecation of MBEDTLS_ERR_ARIA_INVALID_INPUT_LENGTH 2018-12-18 09:53:11 +00:00
Hanno Becker
938f9e9bdb Undo deprecation of MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
Merging MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH and
MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH is an API break.
2018-12-18 09:50:57 +00:00
Hanno Becker
9dbefa1793 Fix conflict between constant deprecation and check-names.sh
The previous introduction of constant deprecation macros
in platform_util.h lead to failure of tests/scrips/check-names.sh
because the regular expressions in the latter choked on the brackets
in the part `__attribute__((deprecated))` of the definition of the
helper type `mbedtls_deprecated_{numeric|string}_constant_t`.

Postponing any further study and potential robustness improvements
in check-names.sh to another time, this commit circumvents this
problem by temporarily abbreviating  `__attribute__((deprecated))`
as `MBEDTLS_DEPRECATED`, which doesn't lead to problems with
check-names.sh.
2018-12-17 22:49:13 +00:00
Hanno Becker
4fb258a868 Remove mentioning of deprecated error codes 2018-12-17 16:09:15 +00:00
Hanno Becker
d2f3a00062 Introduce single BLOWFISH error code for bad input data
Deprecate the old specific error codes
* MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH
* MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH
2018-12-17 13:26:37 +00:00
Hanno Becker
4c029d09be Introduce single CAMELLIA error code for bad input data
Deprecate the old specific error codes
* MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH
* MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
2018-12-17 13:26:33 +00:00
Hanno Becker
2f47550018 Introduce single ARIA error code for bad input data
Deprecate the old specific error codes
* MBEDTLS_ERR_ARIA_INVALID_KEY_LENGTH
* MBEDTLS_ERR_ARIA_INVALID_INPUT_LENGTH
2018-12-17 13:26:28 +00:00
Manuel Pégourié-Gonnard
548cecdd2c Discourage making MBEDTLS_PARAM_FAILED() empty. 2018-12-17 13:13:30 +01:00
Hanno Becker
6d0816a8ae Introduce macros to deprecate constants in the API
This commit introduces macros

* MBEDTLS_DEPRECATED_STRING_CONSTANT
* MBEDTLS_DEPRECATED_NUMERIC_CONSTANT

to platform_util.h which can be used to deprecate public macro constants.

Their definition is essentially taken from dhm.h where the
MBEDTLS_DEPRECATED_STRING_CONSTANT was used to deprecate
insecure hardcoded DHM primes.
2018-12-17 11:39:38 +00:00
Ron Eldor
9cbd1b2ecd Include configuration file for all headers
Include the configuration file for all headers that were not
included, and for new headers introduced.
2018-12-16 12:14:37 +02:00
Ron Eldor
8b0cf2e76f Include configuration file to headers
Add inclusion to configration file in header files,
instead of relying on other header files to include
the configuration file. This issue resolves #1371
2018-12-16 12:02:50 +02:00
Manuel Pégourié-Gonnard
e7306d30a9 Improve some documentation and ChangeLog entry 2018-12-13 09:45:49 +01:00
Manuel Pégourié-Gonnard
cd2b29cd12 Improve wording in documentation and ChangeLog 2018-12-12 10:23:57 +01:00
Manuel Pégourié-Gonnard
ed459e6995 Fix content and style of constraints documentation
- Be specific about the constraints: be a readable/writable buffer of length
  X, be an initialized context, be a context initialized and bound to a key...
- Always use full sentences with all the required pronouns.
2018-12-12 10:20:33 +01:00
Gilles Peskine
23fd2bdb94 Update some documentation related to key slots
Some of the documentation is obsolete in its reference to key slots
when it should discuss key handles. This may require a further pass,
possibly with some reorganization of error codes.

Update the documentation of functions that modify key slots (key
material creation and psa_set_key_policy()) to discuss how they affect
storage.
2018-12-11 16:48:14 +01:00
Gilles Peskine
b77a6b25c0 Remove psa_set_key_lifetime
This function is no longer relevant. Use psa_create_key instead.
2018-12-11 16:48:13 +01:00
Gilles Peskine
f6cc435a8a Remove psa_key_slot_t from public headers
This commit marks the beginning of the removal of support for direct
access to key slots. From this commit on, programs that use
psa_key_slot_t will no longer compile.

Subsequent commits will remove the now-unused legacy support in
psa_crypto.c.
2018-12-11 16:48:13 +01:00
Gilles Peskine
ae32aac48e Switch function declarations from key slots to key handles
Replace `psa_key_slot_t key` by `psa_key_handle_t` in function
declarations.

This is a transition period during which handles are key slot numbers
and the whole library can still be used by accessing a key slot number
without allocating a handle.
2018-12-11 16:48:10 +01:00
Gilles Peskine
644cd5fd89 Linkify some macros that were just typeset as text 2018-12-11 16:47:35 +01:00
Gilles Peskine
f535eb2e61 Declare the new slot management functions in crypto.h
No changes to existing functions.
2018-12-11 16:06:51 +01:00
Manuel Pégourié-Gonnard
35acb099d6 Fix some documentation typos/markup/duplication. 2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
9b8ea89ae5 Fix a few style / whitespace issues 2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
22028a0b8d Fix a typo in documentation 2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
0e17cc93c6 Avoid stringifying condition too early
It's better if the macro receives the condition as an expression rather than a
string - that way it can choose to use it as is or stringify it. Also, the
documentation states that the parameter is an expression, not a string.
2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
44c5d58d05 Document AES functions and fix free() functions 2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
0e9cddbf1a Introduce generic validation macros
Avoid duplicating source code for each module.
2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
a967626753 Make MBEDTLS_CHECK_PARAMS disabled by default 2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
ab588529e1 Rework documentation. 2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
a2b0e27378 Skip param validation tests if custom macro used
The test framework for validation of parameters depends on the macro
MBEDTLS_PARAM_FAILED() being set to its default value when building the
library. So far the test framework attempted to define this macro but this was
the wrong place - this definition wouldn't be picked by the library.

Instead, a different approach is taken: skip those tests when the macro is
defined in config.h, as in that case we have no way to know if it will indeed
end up calling mbedtls_param_failed() as we need it to.

This commit was tested by manually ensuring that aes_invalid_params:

- passes (and is not skipped) in the default configuration
- is skipped when MBEDTLS_PARAM_FAILED() is defined in config.h
2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
3ef6a6dc5c Fix const-ness in mbedtls_param_failed()
The previous prototype gave warnings are the strings produced by #cond and
__FILE__ are const, so we shouldn't implicitly cast them to non-const.

While at it modifying most example programs:
- include the header that has the function declaration, so that the definition
  can be checked to match by the compiler
- fix whitespace
- make it work even if PLATFORM_C is not defined:
    - CHECK_PARAMS is not documented as depending on PLATFORM_C and there is
      no reason why it should
    - so, remove the corresponding #if defined in each program...
    - and add missing #defines for mbedtls_exit when needed

The result has been tested (make all test with -Werror) with the following
configurations:

- full with    CHECK_PARAMS with    PLATFORM_C
- full with    CHECK_PARAMS without PLATFORM_C
- full without CHECK_PARAMS without PLATFORM_C
- full without CHECK_PARAMS with    PLATFORM_C

Additionally, it has been manually tested that adding

    mbedtls_aes_init( NULL );

near the normal call to mbedtls_aes_init() in programs/aes/aescrypt2.c has the
expected effect when running the program.
2018-12-11 12:28:56 +01:00
Manuel Pégourié-Gonnard
8e661bf6a8 Fix arity of the PARAM_FAILED() macro and function
It was inconsistent between files: sometimes 3 arguments, sometimes one.

Align to 1 argument for the macro and 3 for the function, because:
- we don't need 3 arguments for the macro, it can add __FILE__ and __LINE__
  in its expansion, while the function needs them as parameters to be correct;
- people who re-defined the macro should have flexibility, and 3 arguments
  can give the impression they they don't have as much as they actually do;
- the design document has the macro with 1 argument, so let's stick to that.
2018-12-11 12:28:56 +01:00
Simon Butcher
4c37db6d87 Remove the library provided function of MBEDTLS_PARAM_FAILED
The function called through the macro MBEDTLS_PARAM_FAILED() must be supplied by
users and makes no sense as a library function, apart from debug and test.
2018-12-11 12:28:56 +01:00
Simon Butcher
5201e414aa Add optional parameter validation to the AES module
This adds additional and optional parameter validation to the AES module that
can be used by enabling the MBEDTLS_CHECK_PARAMS config.h option.
2018-12-11 12:28:56 +01:00
Simon Butcher
b4868034dd Add initial options and support for parameter validation
This function adds the additional config.h option of MBEDTLS_CHECK_PARAMS which
allows additional validation of parameters passed to the library.
2018-12-11 12:28:56 +01:00
Jaeden Amero
01b34fb316 Merge remote-tracking branch 'upstream-public/pr/2267' into development 2018-12-07 16:17:12 +00:00
Jaeden Amero
52ed0b9030 Merge remote-tracking branch 'upstream-public/pr/2101' into development 2018-12-07 16:15:31 +00:00
Janos Follath
172ba63463 Add guard for MBEDTLS_ECP_INTERNAL_ALT
MBEDTLS_ECP_RESTARTABLE and MBEDTLS_ECP_INTERNAL_ALT are mutually
exclusive, can't work and shouldn't be compiled together.
2018-12-07 13:13:42 +00:00
Janos Follath
d2af46f1e6 Fix typo in ECP alternative documentation 2018-12-07 11:05:21 +00:00
Jaeden Amero
083681c832 Merge remote-tracking branch 'upstream-public/pr/2039' into development 2018-12-06 15:55:34 +00:00
Jaeden Amero
833c053b71 Merge remote-tracking branch 'upstream-public/pr/1982' into development 2018-12-06 15:54:21 +00:00
Jaeden Amero
41722ec29e Merge remote-tracking branch 'upstream-public/pr/1958' into development 2018-12-06 15:53:56 +00:00
Janos Follath
c3b680b028 Clarify requirements on handling ECP group IDs 2018-12-06 12:24:04 +00:00
Janos Follath
948f4bedcc Debug: Add functions for ECDH contexts
The SSL module accesses ECDH context members directly to print debug
information. This can't work with the new context, where we can't make
assumptions about the implementation of the context. This commit adds
new debug functions to complete the encapsulation of the ECDH context
and work around the problem.
2018-12-06 12:22:46 +00:00
Gilles Peskine
3cac8c4d78 Move declarations related to lifetimes further up in crypto.h
No content change. This is in preparation for declaring the slot
management functions, which need the type psa_key_lifetime_t.
2018-12-05 09:40:07 +01:00
Jaeden Amero
5dfca1e1bd Update library version to 2.15.1 2018-12-01 18:44:29 +00:00
Janos Follath
c9c32f3f63 ECDH: Add flexible context and legacy flag
We want to support alternative software implementations and we extend
the ECDH context to enable this. The actual functional change that makes
use of the new context is out of scope for this commit.

Changing the context breaks the API and therefore it has to be
excluded from the default configuration by a compile time flag.
We add the compile time flag to the module header instead of
`config.h`, because this is not a standalone feature, it only
enables adding new implementations in the future.

The new context features a union of the individual implementations
and a selector that chooses the implementation in use. An alternative
is to use an opaque context and function pointers, like for example the
PK module does it, but it is more dangerous, error prone and tedious to
implement.

We leave the group ID and the point format at the top level of the
structure, because they are very simple and adding an abstraction
layer around them away does not come with any obvious benefit.

Other alternatives considered:

- Using the module level replacement mechanism in the ECP module. This
would have made the use of the replacement feature more difficult and
the benefit limited.
- Replacing our Montgomery implementations with a new one directly. This
would have prevented using Montgomery curves across implementations.
(For example use implementation A for Curve448 and implementation B for
Curve22519.) Also it would have been inflexible and limited to
Montgomery curves.
- Encoding the implementation selector and the alternative context in
`mbedtls_ecp_point` somehow and rewriting `mbedtls_ecp_mul()` to
dispatch between implementations. This would have been a dangerous and
ugly hack, and very likely to break legacy applications.
- Same as above just with hardcoding the selector and using a compile
time option to make the selection. Rejected for the same reasons as
above.
- Using the PK module to provide to provide an entry point for
alternative implementations. Like most of the above options this
wouldn't have come with a new compile time option, but conceptually
would have been very out of place and would have meant much more work to
complete the abstraction around the context.

In retrospect:

- We could have used the group ID as the selector, but this would have
made the code less flexible and only marginally simpler. On the other
hand it would have allowed to get rid of the compile time option if a
tight integration of the alternative is possible. (It does not seem
possible at this point.)
- We could have used the same approach we do in this commit to the
`mbedtls_ecp_point` structure. Completing the abstraction around this
structure would have been a much bigger and much riskier code change
with increase in memory footprint, potential decrease in performance
and no immediate benefit.
2018-11-30 14:21:35 +00:00
Janos Follath
f61e486179 ECDH: Add mbedtls_ecdh_setup()
In the future we want to support alternative ECDH implementations. We
can't make assumptions about the structure of the context they might
use, and therefore shouldn't access the members of
`mbedtls_ecdh_context`.

Currently the lifecycle of the context can't be done without direct
manipulation. This commit adds `mbedtls_ecdh_setup()` to complete
covering the context lifecycle with functions.
2018-11-30 14:09:57 +00:00
Janos Follath
89ac8c9266 ECP: Add mbedtls_ecp_tls_read_group_id()
`mbedtls_ecp_tls_read_group()` both parses the group ID and loads the
group into the structure provided. We want to support alternative
implementations of ECDH in the future and for that we need to parse the
group ID without populating an `mbedtls_ecp_group` structure (because
alternative implementations might not use that).

This commit moves the part that parses the group ID to a new function.
There is no need to test the new function directly, because the tests
for `mbedtls_ecp_tls_read_group()` are already implicitly testing it.

There is no intended change in behaviour in this commit.
2018-11-30 14:09:57 +00:00
Gilles Peskine
c4a8017e3e mbedtls_ctr_drbg_update_ret: correct doc for input length limit
Unlike mbedtls_ctr_drbg_update, this function returns an error if the
length limit is exceeded, rather than silently truncating the input.
2018-11-26 19:26:22 +01:00
Gilles Peskine
e0e9c573ad HMAC_DRBG: deprecate mbedtls_hmac_drbg_update because it ignores errors
Deprecate mbedtls_hmac_drbg_update (which returns void) in favor of a
new function mbedtls_hmac_drbg_update_ret which reports error.
2018-11-26 19:26:21 +01:00
Gilles Peskine
d919993b76 CTR_DRBG: deprecate mbedtls_ctr_drbg_update because it ignores errors
Deprecate mbedtls_ctr_drbg_update (which returns void) in favor of a
new function mbedtls_ctr_drbg_update_ret which reports error.
2018-11-26 19:26:00 +01:00
Simon Butcher
60ee838a8a Merge remote-tracking branch 'public/pr/2224' into development-psa-proposed 2018-11-23 21:18:32 +00:00
Hanno Becker
6b01a9fa7c Merge branch 'psa_cipher_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:53:27 +00:00
Hanno Becker
e322d3edd5 Merge branch 'opaque_psk_implementation_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:53:24 +00:00
Hanno Becker
7fde035ddc Merge branch 'iotssl-2580-pk-opaque-psa_CRYPTO' into feature-psa-tls-integration-proposed 2018-11-23 15:47:20 +00:00
Simon Butcher
ebeb6cb446 Update library version to 2.15.0 2018-11-23 14:18:15 +00:00
Hanno Becker
f8b5f27bce Merge branch 'psa_cipher' into development-psa-proposed 2018-11-23 11:18:02 +00:00
Hanno Becker
485529952f Merge branch 'opaque_psk_implementation' into development-psa-proposed 2018-11-23 11:12:38 +00:00
Jaeden Amero
565e0bf49d
Merge pull request #212 from ARMmbed/psa-integration-utilities_CRYPTO
Mbed TLS integration: Shared code between module-specific integration work
2018-11-23 09:00:22 +00:00
Netanel Gonen
596e65e1a5 Fix indentation 2018-11-22 18:41:43 +02:00
Manuel Pégourié-Gonnard
2614562212 Add test utility function: wrap_as_opaque()
The new function is not tested here, but will be in a subsequent PR.
2018-11-22 16:39:39 +00:00
Manuel Pégourié-Gonnard
fe8607350c Add new macro to detemine ECDSA signature length
Revived from a previous PR by Gilles, see:
https://github.com/ARMmbed/mbedtls/pull/1293/files#diff-568ef321d275f2035b8b26a70ee9af0bR71

This will be useful in eliminating temporary stack buffers for transcoding the
signature: in order to do that in place we need to be able to make assumptions
about the size of the output buffer, which this macro will provide. (See next
commit.)
2018-11-22 16:39:39 +00:00
Manuel Pégourié-Gonnard
35a7ff9366 Improve documentation of mbedtls_pk_setup_opaque() 2018-11-22 16:39:39 +00:00
Manuel Pégourié-Gonnard
276cb64e6c Align names to use "opaque" only everywhere
It's better for names in the API to describe the "what" (opaque keys) rather
than the "how" (using PSA), at least since we don't intend to have multiple
function doing the same "what" in different ways in the foreseeable future.
2018-11-22 16:39:39 +00:00
Manuel Pégourié-Gonnard
07b103fe07 Implement can_do for opaque ECC keypairs
Unfortunately the can_do wrapper does not receive the key context as an
argument, so it cannot check psa_get_key_information(). Later we might want to
change our internal structures to fix this, but for now we'll just restrict
opaque PSA keys to be ECDSA keypairs, as this is the only thing we need for
now. It also simplifies testing a bit (no need to test each key type).
2018-11-22 16:39:39 +00:00
Manuel Pégourié-Gonnard
06c631859c Add key generation to opaque test function
While at it, clarify who's responsible for destroying the underlying key. That
can't be us because some keys cannot be destroyed and we wouldn't know. So
let's leave that up to the caller.
2018-11-22 16:39:39 +00:00
Manuel Pégourié-Gonnard
3bc2029a33 Clarify return value of pk_check_pair() 2018-11-22 16:39:39 +00:00
Manuel Pégourié-Gonnard
1ecf92c364 Skeleton for PK_OPAQUE_PSA 2018-11-22 16:39:39 +00:00
Hanno Becker
432084d3f8 Improve doc wording of PSA status field of mbedtls_cipher_context_t 2018-11-22 16:33:01 +00:00
Hanno Becker
9de97d7773 Don't use multiline comments in enums to silence check-names.sh
The sanity checking script tests/scripts/check-names.sh uses a
simple state machine paired with a sequence of `sed` commands to
extract enumeration constants from the code. This code, however,
doesn't work properly when using multiline comments in enumerations
such as recently done in the constants MBEDTLS_CIPHER_PSA_KEY_XXX.

This commit doesn't attempt to make check-names.sh more robust
but instead uses /* ... */ comment indicators in each comment line,
while silences check-names.sh.

Increasing the robustness of check-names.sh is instead tracked
in #2210.
2018-11-22 16:33:01 +00:00
Hanno Becker
fea4915459 Minor rewording in documentation of PSA-based cipher context 2018-11-22 16:33:01 +00:00
Hanno Becker
1908655231 Use enum for slot state in PSA-based cipher context 2018-11-22 16:33:01 +00:00
Hanno Becker
20120b373e Add AEAD tag length to new mbedtls_cipher_setup_psa()
For AEAD ciphers, the information contained in mbedtls_cipher_info
is not enough to deduce a PSA algorithm value of type psa_algorithm_t.
This is because mbedtls_cipher_info doesn't contain the AEAD tag
length, while values of type psa_algorithm_t do.

This commit adds the AEAD tag length as a separate parameter
to mbedtls_cipher_setup_psa(). For Non-AEAD ciphers, the value
must be 0.

This approach is preferred over passing psa_algorithm_t directly
in order to keep the changes in existing code using the cipher layer
small.
2018-11-22 16:33:01 +00:00
Hanno Becker
edda8b8830 Implement mbedtls_cipher_setkey() for PSA-based cipher contexts
This commit implements the internal key slot management performed
by PSA-based cipher contexts. Specifically, `mbedtls_cipher_setkey()`
wraps the provided raw key material into a key slot, and
`mbedtls_cipher_free()` destroys that key slot.
2018-11-22 16:33:01 +00:00
Hanno Becker
6118e43d15 Add PSA-specific cipher context 2018-11-22 16:33:01 +00:00
Hanno Becker
ce1ddee13a Add psa_enabled field to cipher ctx and add dummy implementations
This field determines whether a cipher context should
use an external implementation of the PSA Crypto API for
cryptographic operations, or Mbed TLS' own crypto library.

The commit also adds dummy implementations for the cipher API.
2018-11-22 16:33:01 +00:00
Hanno Becker
4ccfc40aef Add declaration and dummy-definition of mbedtls_cipher_setup_psa() 2018-11-22 16:33:01 +00:00
Hanno Becker
73907f842b Improve wording in documentation of mbedtls_cipher_setup() 2018-11-22 16:33:01 +00:00
Hanno Becker
f28d344832 Expand documentation of mbedtls_cipher_list() 2018-11-22 16:33:01 +00:00
Hanno Becker
c8b699dfa4 Fix style in cipher.h 2018-11-22 16:33:01 +00:00
Hanno Becker
2e009fe013 Fix style in definition of mbedtls_cipher_mode_t 2018-11-22 16:33:01 +00:00
Hanno Becker
ed437a674e Fix typo in documentation of mbedtls_ssl_conf_psk() 2018-11-22 16:30:20 +00:00
Hanno Becker
3d4261bb21 Fix typo in documentation of mbedtls_ssl_conf_opaque_psk() 2018-11-22 16:30:20 +00:00
Hanno Becker
b94493cbc5 Add opaque PSK identifier to SSL configuration 2018-11-22 16:30:20 +00:00
Hanno Becker
ce620dd8b0 Add opaque PSK identifier to mbedtls_ssl_handshake_params
This commit adds a field `psk_opaque` to the handshake parameter
struct `mbedtls_ssl_handshake_params` which indicates if the user
has configured the use of an opaque PSK.
2018-11-22 16:30:20 +00:00
Hanno Becker
866fc7e3a7 Add API for configuration of opaque PSK
This commit adds two public API functions

mbedtls_ssl_conf_psk_opaque()
mbedtls_ssl_set_hs_psk_opaque()

which allow to configure the use of opaque, PSA-maintained PSKs
at configuration time or run time.
2018-11-22 16:30:20 +00:00
Hanno Becker
fc359fd837 Remove double white space 2018-11-22 16:27:57 +00:00
Hanno Becker
47a6291445 Use MBEDTLS_PSA_UTIL_H instead of MBEDTLS_PSA_COMPAT_H in psa_util.h
This is still an artifact from when psa_util.h was called psa_compat.h.
2018-11-22 16:27:57 +00:00
Hanno Becker
56a78dd4ad State explicitly that any API depending on PSA is unstable 2018-11-22 16:27:57 +00:00
Hanno Becker
4d9e1e0ac4 Improve documentation of mbedtls_psa_err_translate_pk() 2018-11-22 16:27:57 +00:00
Hanno Becker
dec64735e2 Add AEAD tag length parameter to mbedtls_psa_translate_cipher_mode()
In case of AEAD ciphers, the cipher mode (and not even the entire content
of mbedtls_cipher_info_t) doesn't uniquely determine a psa_algorithm_t
because it doesn't specify the AEAD tag length, which however is included
in psa_algorithm_t identifiers.

This commit adds a tag length value to mbedtls_psa_translate_cipher_mode()
to account for that ambiguity.
2018-11-22 16:27:57 +00:00
Hanno Becker
14f78b03bb Add function to translate PSA errors to PK module errors 2018-11-22 16:27:57 +00:00
Hanno Becker
639a4320ca Fix Doxygen annotation in psa_util.h 2018-11-22 16:27:57 +00:00
Hanno Becker
5f48818712 Make PSA utility functions static inline
Compilers warn about unused static functions.
2018-11-22 16:27:56 +00:00
Hanno Becker
28b9d35904 Add PSA-to-Mbed TLS translations for cipher module 2018-11-22 16:27:56 +00:00
Hanno Becker
560aeaf26b Add internal header for PSA utility functions
This commit adds the header file mbedtls/psa_util.h which contains
static utility functions `mbedtls_psa_xxx()` used in the integration
of PSA Crypto into Mbed TLS.

Warning: These functions are internal only and may change at any time.
2018-11-22 16:27:56 +00:00
Manuel Pégourié-Gonnard
26fd730876 Add config option for X.509/TLS to use PSA 2018-11-22 16:25:36 +00:00
Gilles Peskine
0cfaed1858 fix doxigen issue
Co-Authored-By: netanelgonen <netanel.gonen@arm.com>
2018-11-22 17:35:11 +02:00
Netanel Gonen
1d7195f715 always compile mbedtls_psa_inject_entropy
In case of dual core this function header must be enable for calling the
SPM entropy inject function without any use of NV_SEED
2018-11-22 16:39:07 +02:00
Hanno Becker
7909c4c875 Improve doc wording of PSA status field of mbedtls_cipher_context_t 2018-11-22 14:03:39 +00:00
Hanno Becker
115e1a4e5b Don't use multiline comments in enums to silence check-names.sh
The sanity checking script tests/scripts/check-names.sh uses a
simple state machine paired with a sequence of `sed` commands to
extract enumeration constants from the code. This code, however,
doesn't work properly when using multiline comments in enumerations
such as recently done in the constants MBEDTLS_CIPHER_PSA_KEY_XXX.

This commit doesn't attempt to make check-names.sh more robust
but instead uses /* ... */ comment indicators in each comment line,
while silences check-names.sh.

Increasing the robustness of check-names.sh is instead tracked
in #2210.
2018-11-22 14:03:39 +00:00
Hanno Becker
625f94b2fd Minor rewording in documentation of PSA-based cipher context 2018-11-22 14:03:39 +00:00
Hanno Becker
ce61a32e6a Use enum for slot state in PSA-based cipher context 2018-11-22 14:03:39 +00:00
Hanno Becker
f133640475 Add AEAD tag length to new mbedtls_cipher_setup_psa()
For AEAD ciphers, the information contained in mbedtls_cipher_info
is not enough to deduce a PSA algorithm value of type psa_algorithm_t.
This is because mbedtls_cipher_info doesn't contain the AEAD tag
length, while values of type psa_algorithm_t do.

This commit adds the AEAD tag length as a separate parameter
to mbedtls_cipher_setup_psa(). For Non-AEAD ciphers, the value
must be 0.

This approach is preferred over passing psa_algorithm_t directly
in order to keep the changes in existing code using the cipher layer
small.
2018-11-22 14:03:39 +00:00
Hanno Becker
d9ca5cfd60 Implement mbedtls_cipher_setkey() for PSA-based cipher contexts
This commit implements the internal key slot management performed
by PSA-based cipher contexts. Specifically, `mbedtls_cipher_setkey()`
wraps the provided raw key material into a key slot, and
`mbedtls_cipher_free()` destroys that key slot.
2018-11-22 14:03:39 +00:00
Hanno Becker
73f59fc3e9 Add PSA-specific cipher context 2018-11-22 14:03:39 +00:00
Hanno Becker
1cb36530be Add psa_enabled field to cipher ctx and add dummy implementations
This field determines whether a cipher context should
use an external implementation of the PSA Crypto API for
cryptographic operations, or Mbed TLS' own crypto library.

The commit also adds dummy implementations for the cipher API.
2018-11-22 14:03:39 +00:00
Hanno Becker
098c9de2af Add declaration and dummy-definition of mbedtls_cipher_setup_psa() 2018-11-22 14:03:39 +00:00
Hanno Becker
b1f0872ce6 Improve wording in documentation of mbedtls_cipher_setup() 2018-11-22 14:03:39 +00:00
Hanno Becker
d7503a72d0 Expand documentation of mbedtls_cipher_list() 2018-11-22 14:03:39 +00:00
Hanno Becker
f4fb876be9 Fix style in cipher.h 2018-11-22 14:03:39 +00:00
Hanno Becker
e5a0450809 Fix style in definition of mbedtls_cipher_mode_t 2018-11-22 14:03:39 +00:00
Manuel Pégourié-Gonnard
347a00e07e Add test utility function: wrap_as_opaque()
The new function is not tested here, but will be in a subsequent PR.
2018-11-22 09:59:34 +01:00
Manuel Pégourié-Gonnard
2f2b396b7a Add new macro to detemine ECDSA signature length
Revived from a previous PR by Gilles, see:
https://github.com/ARMmbed/mbedtls/pull/1293/files#diff-568ef321d275f2035b8b26a70ee9af0bR71

This will be useful in eliminating temporary stack buffers for transcoding the
signature: in order to do that in place we need to be able to make assumptions
about the size of the output buffer, which this macro will provide. (See next
commit.)
2018-11-22 09:59:34 +01:00
Manuel Pégourié-Gonnard
392dc045c9 Improve documentation of mbedtls_pk_setup_opaque() 2018-11-22 09:59:34 +01:00
Manuel Pégourié-Gonnard
69baf70984 Align names to use "opaque" only everywhere
It's better for names in the API to describe the "what" (opaque keys) rather
than the "how" (using PSA), at least since we don't intend to have multiple
function doing the same "what" in different ways in the foreseeable future.
2018-11-22 09:59:34 +01:00
Manuel Pégourié-Gonnard
920c063bad Implement can_do for opaque ECC keypairs
Unfortunately the can_do wrapper does not receive the key context as an
argument, so it cannot check psa_get_key_information(). Later we might want to
change our internal structures to fix this, but for now we'll just restrict
opaque PSA keys to be ECDSA keypairs, as this is the only thing we need for
now. It also simplifies testing a bit (no need to test each key type).
2018-11-22 09:59:34 +01:00
Manuel Pégourié-Gonnard
01a12c49aa Add key generation to opaque test function
While at it, clarify who's responsible for destroying the underlying key. That
can't be us because some keys cannot be destroyed and we wouldn't know. So
let's leave that up to the caller.
2018-11-22 09:59:34 +01:00
Manuel Pégourié-Gonnard
eaeb7b23ff Clarify return value of pk_check_pair() 2018-11-22 09:59:34 +01:00
Manuel Pégourié-Gonnard
20678b2ae2 Skeleton for PK_OPAQUE_PSA 2018-11-22 09:59:34 +01:00
Hanno Becker
f9a3287b7f Fix typo in documentation of mbedtls_ssl_conf_psk() 2018-11-21 21:12:58 +00:00
Hanno Becker
463194d47a Fix typo in documentation of mbedtls_ssl_conf_opaque_psk() 2018-11-21 21:12:58 +00:00
Hanno Becker
4363313976 Add opaque PSK identifier to SSL configuration 2018-11-21 21:12:58 +00:00
Hanno Becker
d9f7d43b5f Add opaque PSK identifier to mbedtls_ssl_handshake_params
This commit adds a field `psk_opaque` to the handshake parameter
struct `mbedtls_ssl_handshake_params` which indicates if the user
has configured the use of an opaque PSK.
2018-11-21 21:12:58 +00:00
Hanno Becker
0228304b5f Add API for configuration of opaque PSK
This commit adds two public API functions

mbedtls_ssl_conf_psk_opaque()
mbedtls_ssl_set_hs_psk_opaque()

which allow to configure the use of opaque, PSA-maintained PSKs
at configuration time or run time.
2018-11-21 21:12:58 +00:00
Hanno Becker
4d30776826 Remove double white space 2018-11-21 21:08:43 +00:00
Hanno Becker
186b65ac61 Use MBEDTLS_PSA_UTIL_H instead of MBEDTLS_PSA_COMPAT_H in psa_util.h
This is still an artifact from when psa_util.h was called psa_compat.h.
2018-11-21 21:08:43 +00:00
Hanno Becker
51560b62ed State explicitly that any API depending on PSA is unstable 2018-11-21 21:08:43 +00:00
Hanno Becker
f5f9ea26bb Improve documentation of mbedtls_psa_err_translate_pk() 2018-11-21 21:08:43 +00:00
Hanno Becker
010cf7eced Add AEAD tag length parameter to mbedtls_psa_translate_cipher_mode()
In case of AEAD ciphers, the cipher mode (and not even the entire content
of mbedtls_cipher_info_t) doesn't uniquely determine a psa_algorithm_t
because it doesn't specify the AEAD tag length, which however is included
in psa_algorithm_t identifiers.

This commit adds a tag length value to mbedtls_psa_translate_cipher_mode()
to account for that ambiguity.
2018-11-21 21:08:43 +00:00
Hanno Becker
000334f398 Add function to translate PSA errors to PK module errors 2018-11-21 21:08:43 +00:00
Hanno Becker
afebf5a153 Fix Doxygen annotation in psa_util.h 2018-11-21 21:08:43 +00:00
Hanno Becker
b26c1938d2 Make PSA utility functions static inline
Compilers warn about unused static functions.
2018-11-21 21:08:43 +00:00
Hanno Becker
5525126ed8 Add PSA-to-Mbed TLS translations for cipher module 2018-11-21 21:08:43 +00:00
Hanno Becker
87837b2ec6 Add internal header for PSA utility functions
This commit adds the header file mbedtls/psa_util.h which contains
static utility functions `mbedtls_psa_xxx()` used in the integration
of PSA Crypto into Mbed TLS.

Warning: These functions are internal only and may change at any time.
2018-11-21 21:08:42 +00:00
Manuel Pégourié-Gonnard
aeefa49edd Add config option for X.509/TLS to use PSA 2018-11-21 21:03:14 +00:00
avolinski
0d2c266c06 change MBEDTLS_RANDOM_SEED_ITS define to be PSA_CRYPTO_ITS_RANDOM_SEED_UID 2018-11-21 17:31:07 +02:00
avolinski
7cc8229d80 Replace MBED_RANDOM_SEED_ITS_UID with MBEDTLS_RANDOM_SEED_ITS_UID
Update mbedtls_psa_inject_entropy function documentation
2018-11-21 16:24:53 +02:00
Netanel Gonen
21f37cbbec Add Tests for psa crypto entropy incjection
Adjust code to handle and work with MBEDTLS_ENTROPY_BLOCK_SIZE definition option
2018-11-21 16:24:52 +02:00
Gilles Peskine
ee2ffd311b Document the maximum seed size as well as the minimum 2018-11-21 16:23:42 +02:00
Gilles Peskine
0338ded2f4 Improve documentation of mbedtls_psa_inject_entropy
Explain what the function does, why one would use it, how to use it,
how to handle its input, and what the status codes mean.
2018-11-21 16:23:42 +02:00
Netanel Gonen
212a793217 add MBEDTLS_PSA_HAS_ITS_IO to config.h 2018-11-21 16:23:42 +02:00
Netanel Gonen
2bcd312cda Add entropy injection function to psa cripto APIs 2018-11-21 16:15:14 +02:00
Gilles Peskine
3d5d8372a5
Merge pull request #198 from ARMmbed/psa_crypto_its
PSA Crypto Storage backend implementation over PSA ITS APIs (#198)
2018-11-21 15:04:03 +01:00
Jaeden Amero
484ee33c35 psa: Add PSA Crypto configuration
Add an option that can enable the exposure of PSA Crypto APIs from
libmbedcrypto.
2018-11-21 12:54:57 +00:00
Jaeden Amero
3a45d9e13b CMake: psa: Enable installing of headers
When installing via CMake, also install PSA headers so that PSA APIs can be
more easily used from the installed library.
2018-11-21 12:16:40 +00:00
Moran Peker
a90abf13b6 add MBEDTLS_PSA_HAS_ITS_IO
update config.h,config-psa-crypto.h, version_features.c and config.pl
2018-11-21 13:28:09 +02:00
Moran Peker
4611956560 Add new MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C configuration option
- update configuration requires
- update check_config.h to include MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
- update con and config.h
2018-11-21 13:28:09 +02:00
Darryl Green
d49a499d03 psa: Implement persistent keys
Allow use of persistent keys, including configuring them, importing and
exporting them, and destroying them.

When getting a slot using psa_get_key_slot, there are 3 scenarios that
can occur if the keys lifetime is persistent:

1. Key type is PSA_KEY_TYPE_NONE, no persistent storage entry:
   -  The key slot is treated as a standard empty key slot
2. Key type is PSA_KEY_TYPE_NONE, persistent storage entry exists:
   -  Attempt to load the key from persistent storage
3. Key type is not PSA_KEY_TYPE_NONE:
   -  As checking persistent storage on every use of the key could
      be expensive, the persistent key is assumed to be saved in
      persistent storage, the in-memory key is continued to be used.
2018-11-20 15:40:25 +00:00
Darryl Green
db2b8db715 psa: Add storage implementation for files
Add new functions, psa_load_persistent_key(),
psa_free_persistent_key_data(), and psa_save_persistent_key(), for
managing persistent keys. These functions load to or save from our
internal representation of key slots. Serialization is a concern of the
storage backend implementation and doesn't abstraction-leak into the
lifetime management code.

An initial implementation for files is provided. Additional storage
backends can implement this interface for other storage types.
2018-11-20 15:21:22 +00:00
Jaeden Amero
818eab2e76 Merge tag 'mbedtls-2.14.0' into feature-psa
Mbed TLS version 2.14.0

Resolved conflicts in include/mbedtls/config.h,
tests/scripts/check-files.py, and yotta/create-module.sh by removing yotta.

Resolved conflicts in tests/.jenkins/Jenkinsfile by continuing to run
mbedtls-psa job.
2018-11-19 19:25:56 +00:00
Simon Butcher
c1b9892177 Update library version number to 2.14.0 2018-11-19 18:31:40 +00:00
Hanno Becker
2255a360a6 Improve documentation of TLS-1.2 PRF and PSK-to-MS KDF 2018-11-19 11:24:26 +00:00
Hanno Becker
8dbfca4628 Add TLS-1.2 PSK-to-MS key derivation algorithm identifier to PSA API 2018-11-19 11:24:21 +00:00
Gilles Peskine
19643c573d Fix typo in documentation
tests/scripts/doxygen.sh passes.
2018-11-16 16:45:02 +01:00
Gilles Peskine
a05219c70b Add some missing compilation guards
Add missing checks for defined(MBEDTLS_MD_C) around types and
functions that require it (HMAC, HKDF, TLS12_PRF).

Add missing checks for defined(MBEDTLS_ECDSA_DETERMINISTIC) around
code that calls mbedtls_ecdsa_sign_det().

Add missing checks for defined(MBEDTLS_ECDH_C) around ECDH-specific
functions.
2018-11-16 16:09:24 +01:00
Hanno Becker
580fba1431 Dynamically allocate A(i) + seed buffer for TLS-1.2 PRF 2018-11-16 11:24:59 +00:00
Hanno Becker
c8a41d71cb Add implementation of TLS-1.2 PRF 2018-11-16 11:24:55 +00:00
Hanno Becker
79250c255f Add identifiers for TLS-1.2 PRF
This commit adds KDF algorithm identifiers `PSA_ALG_TLS12_PRF(HASH)`
to the PSA crypto API. They represent the key derivation functions
used by TLS 1.2 for the PreMasterSecret->MasterSecret and
MasterSecret->KeyBlock conversions.
2018-11-16 11:12:01 +00:00
Gilles Peskine
99d0259987 Improve documentation the shared secret format for FFDH 2018-11-15 17:48:15 +01:00
Gilles Peskine
d171e78b46 Document the peer_key format for psa_key_agreement 2018-11-15 17:48:15 +01:00
Gilles Peskine
6c6a023f99 More tweaks on EC-related wording
Use m for the bit size of the field order, not q which is
traditionally the field order.

Correct and clarify the private key representation format as has been
done for the private key and ECDH shared secret formats.
2018-11-15 17:48:15 +01:00
Gilles Peskine
7b5b4a01a4 Correct description of the ECDH shared secret
The endianness actually depends on the curve type.

Correct the terminology around "curve size" and "order of the curve".
I tried to find a formulation that is comprehensible to programmers
who do not know the underlying mathematics, but nonetheless correct
and precise.

Use similar terminology in other places that were using "order of the
curve" to describe the bit size associated with the curve.
2018-11-14 21:17:16 +01:00
Gilles Peskine
f5f442a50c More accurate description of the shared secret for ECDH
Don't refer to the "curve size", call it the "size of the order of the
curve".
2018-11-14 21:17:16 +01:00
Gilles Peskine
211a436f2e Document that key agreement produces a maximum-capacity generator 2018-11-14 21:15:37 +01:00
Gilles Peskine
79dd6229e4 Clarify the format of the (EC)DH shared secret 2018-11-14 21:15:37 +01:00
Gilles Peskine
2607bca666 Give "DH" and "DHM" as alternative names
Be consistent about calling it just "Diffie-Hellman", except once
where I state that "Diffie-Hellman-Merkle" is an alternative name.
2018-11-14 21:15:37 +01:00
Gilles Peskine
01d718cee8 New API function: psa_key_agreement
Set up a generator from a key agreement.
2018-11-14 21:15:37 +01:00
Gilles Peskine
8feb3a886d Support key derivation with non-predefined capacity
psa_key_derivation requires the caller to specify a maximum capacity.
This commit adds a special value that indicates that the maximum
capacity should be the maximum supported by the algorithm. This is
currently meant only for selection algorithms used on the shared
secret produced by a key agreement.
2018-11-14 21:15:37 +01:00
Gilles Peskine
93098fd996 Key agreement: macros for finite-field Diffie-Hellman, ECDH
Declare macros to represent key agreement algorithms.
2018-11-14 21:15:37 +01:00
Gilles Peskine
e8f0e3dc3c New algorithm category: key selection
A key selection algorithm is similar to a key derivation algorithm in
that it takes a secret input and produces a secret output stream.
However, unlike key derivation algorithms, there is no expectation
that the input cannot be reconstructed from the output. Key selection
algorithms are exclusively meant to be used on the output of a key
agreement algorithm to select chunks of the shared secret.
2018-11-14 21:15:37 +01:00
Gilles Peskine
92587dbf2b Write missing bit of the documentation of psa_key_derivation 2018-11-14 21:15:37 +01:00
Gilles Peskine
e19b7d54d0 Revert "New function mbedtls_rsa_get_bitlen"
This reverts commit 1d26709dbd.
2018-11-12 19:14:34 +01:00
Simon Butcher
cdd1a6c872 Merge remote-tracking branch 'restricted/pr/510' into development-restricted-proposed 2018-11-12 14:29:14 +00:00
Simon Butcher
e51d4b336b Merge remote-tracking branch 'public/pr/2054' into development-proposed 2018-11-09 19:57:53 +00:00
Ron Eldor
9924bdc792 Deprecate hardware acceleration errors
Deprecate the module-specific XXX_HW_ACCEL_FAILED and
XXX_FEATURE_UNAVAILABLE errors, as alternative implementations should now
return `MBEDTLS_ERR_PLATFORM_HW_FAILED` and
`MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED`.
2018-11-09 15:01:07 +00:00
Ron Eldor
bcca58c6cd Add common feature unavailable error
Add a common error for the feature unavailable, in the
platform module.
2018-11-09 13:57:37 +00:00
Simon Butcher
361ce6c302 Merge remote-tracking branch 'public/pr/2127' into development-restricted-proposed 2018-11-07 12:57:01 +00:00
Simon Butcher
c81813153c Merge remote-tracking branch 'public/pr/2140' into development-restricted-proposed 2018-11-07 12:56:05 +00:00
Simon Butcher
241823aab8 Merge remote-tracking branch 'public/pr/1641' into development-restricted-proposed 2018-11-07 12:55:47 +00:00
Simon Butcher
51b6abbbf2 Merge remote-tracking branch 'public/pr/2165' into development-proposed 2018-11-06 22:55:14 +00:00
Jaeden Amero
40f1cb104f
Merge pull request #182 from ARMmbed/psa-asymmetric-format-raw_private_key
Asymmetric import/export format: raw private EC keys
2018-11-06 09:02:25 +00:00
Ron Eldor
7213744b07 Fix typo in comment
Change from from lower case to upper case in XXX_ALT
comment in `MBEDTLS_ECP_RESTARTABLE` description.
2018-11-05 22:31:32 +02:00
Ron Eldor
19779c4739 Some style and documentation fixes
1. Change description of of hte `MBEDTLS_ECP_RESTARTABLE`
in the configuration file.
2. Change check for compilation of `rs_ctx` to positive flow.
2018-11-05 16:58:13 +02:00
Ron Eldor
5ed8c1eded Avoid using restartable and alternative ECP imp.
1. Add a check that MBEDTLS_ECP_RESTARTABLE is not defined
   along any EC* alternative implementation.
2. Add a closing comment foran `#endif`.
2018-11-05 14:04:26 +02:00
Simon Butcher
06f88e9c42 Merge remote-tracking branch 'public/pr/2007' into development-proposed 2018-11-04 19:12:57 +00:00
Hanno Becker
710f203541 Merge branch 'iotssl-1770' into development_thomas_dee 2018-11-02 10:52:49 +00:00
Hanno Becker
5517755353 Improve wording and formatting of ASN.1 write module documentation 2018-11-02 10:52:38 +00:00
Gilles Peskine
f7933939b3 Expand the documentation of import/export formats
Clarify that the key type determines the syntax of the input.

Clarify the constraints on implementations that support extra import
formats.
2018-10-31 14:10:07 +01:00
Gilles Peskine
5eb1521957 Private EC key format: update key representation size macro 2018-10-31 14:10:06 +01:00
Gilles Peskine
f76aa7789b Private EC key format: change to raw secret value (doc, import)
Change the import/export format of private elliptic curve keys from
RFC 5915 to the raw secret value. This commit updates the format
specification and the import code, but not the export code.
2018-10-31 14:10:06 +01:00
Manuel Pégourié-Gonnard
d8e3a1ef66 Clarify documentation of ssl_set_own_cert()
fixes #507
2018-10-29 09:52:10 +01:00
Simon Butcher
d5bf428a7b Merge remote-tracking branch 'public/pr/1618' into development-proposed 2018-10-28 17:29:13 +00:00
Simon Butcher
a07d86e8af Merge remote-tracking branch 'public/pr/1902' into development 2018-10-27 18:36:55 +01:00
Simon Butcher
ef263ebcd7 Merge remote-tracking branch 'public/pr/1993' into development 2018-10-27 18:36:28 +01:00
Simon Butcher
da095619bb Merge remote-tracking branch 'public/pr/2142' into development 2018-10-27 18:30:08 +01:00
Simon Butcher
e783f4a767 Merge remote-tracking branch 'public/pr/1609' into development 2018-10-27 17:35:25 +01:00
Derek D. Miller
f015feced9
Some changes from 'pcd_' to 'psa_drv_' were missed
In the comments, some of the changes from `pcd_` to `psa_drv_` omitted the `_drv_` part.
Changed them to be consistent
2018-10-26 10:56:11 -05:00
Hanno Becker
abdf67ee9f Cast number of operations to uint in MBEDTLS_ECP_BUDGET
Context:
The macro `MBEDTLS_ECP_BUDGET()` is called before performing a
number of potentially time-consuming ECC operations. If restartable
ECC is enabled, it wraps a call to `mbedtls_ecp_check_budget()`
which in turn checks if the requested number of operations can be
performed without exceeding the maximum number of consecutive ECC
operations.

Issue:
The function `mbedtls_ecp_check_budget()` expects a the number
of requested operations to be given as a value of type `unsigned`,
while some calls of the wrapper macro `MBEDTLS_ECP_BUDGET()` use
expressions of type `size_t`.
This rightfully leads to warnings about implicit truncation
from `size_t` to `unsigned` on some compilers.

Fix:
This commit makes the truncation explicit by adding an explicit cast
to `unsigned` in the expansion of the `MBEDTLS_ECP_BUDGET()` macro.

Justification:
Functionally, the new version is equivalent to the previous code.
The warning about truncation can be discarded because, as can be
inferred from `ecp.h`, the number of requested operations is never
larger than 1000.
2018-10-26 15:06:51 +01:00
Jaeden Amero
9411db74c4 psa: driver: Wrap types and symbols for C/C++ use
Add extern "C" wrappers around type and function declarations to enable C++
interoperability of the driver header. This is done so that the driver
functions and types can be used or implmented by C++ code.
2018-10-26 13:39:43 +01:00
Jaeden Amero
20b8a4f2ff psa: driver: Convert struct types to typedefs
Convert PSA Crypto driver model structs to typedefs so that the `struct`
name doesn't need to be used and for consistent style with other PSA
structures.
2018-10-26 13:39:42 +01:00
Jaeden Amero
4155850dd9 psa: driver: Use header guard style consistently
The file crypto_driver.h was not using the header guard style as other PSA
Crypto header files. Remove the `__` prefix and suffix. Use C-style
comments for the end-of-guard comment.
2018-10-26 12:25:05 +01:00
Jaeden Amero
7632f628d7 psa: driver: Prefix "encrypt or decrypt" type
The driver model's "encrypt or decrypt" type, encrypt_or_decrypt_t, is
publicly exposed and needs to have a `psa_` prefix in order to properly
communicate that it is part of the PSA driver model.
2018-10-26 12:25:05 +01:00
Jaeden Amero
1acb2c4317 psa: driver: Replace pcd_ prefix with psa_drv_
The `pcd_` prefix is ambiguous and does not make it clear that the types
and symbols are standardized by PSA. Replace `pcd_` with a prefix that can
be shared with all PSA drivers, `psa_drv_`.
2018-10-26 12:25:05 +01:00
Jaeden Amero
e095d60d95 psa: driver: Use "Driver Model" terminology
"Driver APIs" can be interpreted to mean APIs used when you want to write a
driver, not the set of functions you implement to make a driver. See
https://www.kernel.org/doc/html/latest/driver-api/index.html "The kernel
offers a wide variety of interfaces to support the development of device
drivers."

As such, we are renaming "Driver API" to "Driver Model" and updating our
work so far to reflect this change.
2018-10-26 12:25:05 +01:00
Jaeden Amero
72244ae595 psa: driver: Fix names of AEAD functions
The driver AEAD functions had a `psa_` prefix. They should have had a
`pcd_` prefix like the other driver functions.
2018-10-26 12:12:49 +01:00
Jaeden Amero
0a09f77357 psa: driver: Fix comment whitespace format
Fix comment formatting whitespace issues in crypto_driver.h to match our
style.
2018-10-26 12:12:08 +01:00
Jaeden Amero
d3d26aa6b2 psa: driver: Fix trailing whitespace issues
Remove all trailing whitespace from crypto_driver.h. Ensure there is a new
line at the end of crypto_driver.h.
2018-10-26 12:04:14 +01:00
Hanno Becker
8e5301165e Correct typo in documentation of MBEDTLS_SSL_MAX_CONTENT_LEN 2018-10-26 10:12:17 +01:00
Hanno Becker
0eb8fb85a6 Correct typo in documentation of MBEDTLS_SSL_RENEGOTIATION 2018-10-26 09:53:16 +01:00
Jaeden Amero
ec57c5579a
Merge pull request #161 from ARMmbed/driver_api
Added the crypto driver API header file
2018-10-24 16:15:58 +01:00
Derek Miller
6f960ab063 Additional fixes per comments in PR#92 in psa-crypto 2018-10-23 15:58:06 -05:00
Derek Miller
81133a6f76 More changes due to PR feedback 2018-10-23 14:55:32 -05:00
Hanno Becker
cc40d86edb Improve documentation of mbedtls_ssl_get_verify_result()
Fixes #517.
2018-10-23 10:28:01 +01:00
Hanno Becker
b5d835f062 Improve documentation of MBEDTLS_SSL_{MAX/IN/OUT}_CONTENT_LEN
Fixes #2062.
2018-10-23 09:59:19 +01:00
Manuel Pégourié-Gonnard
a966fdea72 Fix some documentation typos and improve a comment 2018-10-23 10:41:11 +02:00
Derek Miller
765682cf09 Added detailed descriptions for modules. Additional small edits. 2018-10-22 15:27:27 -05:00
Krzysztof Stachowiak
2cdb6b46be Include MinGW in the non-conforming (v)snprintf scope
It turns out that in some environments MinGW esposes a non-conforming
(v)snprintf behavior despite the tests against the MSVC runtime pass.
Therefore it has been included in the "non-conforming" scope alongide
older MSVC rungime environments.
2018-10-22 10:43:56 +02:00
Manuel Pégourié-Gonnard
ca29fdf569 Fix some typos in documentation and comments 2018-10-22 09:56:53 +02:00
Derek Miller
f3d0a56841 Integrated mostly cosmetic feedback from Alex 2018-10-18 16:41:08 -05:00
Gilles Peskine
e0e9c7c417 New macro PSA_ALG_FULL_LENGTH_MAC
Provide a documented way of constructing the full-length MAC algorithm
from a truncated version.
2018-10-17 18:30:47 +02:00
Gilles Peskine
6d72ff9e79 Document that the minimum truncated MAC length is implementation-defined 2018-10-17 13:54:47 +02:00
Gilles Peskine
e1f2d7d1ac Document and check the consistency of truncated MAC encodings
Add comments noting that the maximum length of a MAC must fit in
PSA_ALG_MAC_TRUNCATION_MASK. Add a unit test that verifies that the
maximum MAC size fits.
2018-10-17 13:54:47 +02:00
Hanno Becker
1ea604d3ee Guard mbedtls_pkcs5_pbes2() by MBEDTLS_ASN1_PARSE_C
Previously, mbedtls_pkcs5_pbes2() was unconditionally declared
in `pkcs5.h` but defined as a stub returning
`MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE` in case
MBEDTLS_ASN1_PARSE_C was not defined.

In line with the previous commits, this commit removes declaration
and definition from both `pkcs5.h` and `pkcs5.c` in case
MBEDTLS_ASN1_PARSE_C is not defined.
2018-10-16 13:39:40 +01:00
Hanno Becker
8a89f9fcd2 Make PBE-related parts of PKCS12 depend on MBEDTLS_ASN1_PARSE_C 2018-10-16 13:39:40 +01:00
Hanno Becker
cb9debda6b Guard PK-parse module by ASN.1-parse module in check_config.h 2018-10-16 13:39:40 +01:00
Manuel Pégourié-Gonnard
b843b15a02 Fix function name to fit conventions 2018-10-16 10:41:31 +02:00
Manuel Pégourié-Gonnard
c37423fa76 Fix misleading sub-state name and comments
The enum constant had 'ske' in its name while this was a sub-state of the
"write client key exchange" state; corresponding issue in the comment.
2018-10-16 10:28:17 +02:00
Derek Miller
16e72299cd Changed crypto_driver.h based on PR feedback 2018-10-15 16:14:24 -05:00
Ron Eldor
5267b62248 Change error description
1. Change error description to a clearer one.
2. Change value in the error codes ranges description.
2018-10-15 18:44:42 +03:00
Ron Eldor
a27190b774 Rename platform error code and value
Rename the PLATFORM HW error, to avoid ABI breakage with Mbed OS.
The value changed as well, as previous value was not in the range of
Mbed TLS low level error codes.
2018-10-15 16:33:43 +03:00
Manuel Pégourié-Gonnard
32df91183e Fix documentation of what functions restart when
The previous comment in ecp.h that only functions that take a "restart
context" argument can restart was wrong due to ECDH and SSL functions.
Changing that criterion to "document says if can return IN PROGRESS".

This requires updating the documentation of the SSL functions to mention this
explicitly, but it's something we really ought to do anyway, a bit
embarrassing that this wasn't done already - callers need to know what
`MBEDTLS_ERR_SSL_xxx` error codes to special-case. Note that the documentation
of the relevant functions was in a suboptimal state, so it was improved in the
process - it could use some more improvement, but only the changes that helped
cleanly insert the info about the IN_PROGRESS part were done here.

Also, while updating the ecp.h comment, I noticed several functions in the
ECDH module were wrongfully documented as restartable, which is probably a
left-over from the days before `mbedtls_ecdh_enable_restart()` was introduced.
Fixing that as well, to make the criterion used in ecp.h correct.
2018-10-15 14:41:16 +02:00
Manuel Pégourié-Gonnard
f0bbd7e3fd Misc documentation fixes/improvements. 2018-10-15 13:22:41 +02:00
Derek Miller
5b3417a3d1 Added the crypto driver API header file 2018-10-10 17:55:03 -05:00
Janos Follath
a0b67c2f3e Bignum: Deprecate mbedtls_mpi_is_prime()
When using a primality testing function the tolerable error rate depends
on the scheme in question, the required security strength and wether it
is used for key generation or parameter validation. To support all use
cases we need more flexibility than what the old API provides.
2018-10-09 16:36:53 +01:00
Janos Follath
f301d23ceb Bignum: Improve primality test for FIPS primes
The FIPS 186-4 RSA key generation prescribes lower failure probability
in primality testing and this makes key generation slower. We enable the
caller to decide between compliance/security and performance.

This python script calculates the base two logarithm of the formulas in
HAC Fact 4.48 and was used to determine the breakpoints and number of
rounds:

def mrpkt_log_2(k, t):
    if t <= k/9.0:
        return 3*math.log(k,2)/2+t-math.log(t,2)/2+4-2*math.sqrt(t*k)
    elif t <= k/4.0:
        c1 = math.log(7.0*k/20,2)-5*t
        c2 = math.log(1/7.0,2)+15*math.log(k,2)/4.0-k/2.0-2*t
        c3 = math.log(12*k,2)-k/4.0-3*t
        return max(c1, c2, c3)
    else:
        return math.log(1/7.0)+15*math.log(k,2)/4.0-k/2.0-2*t
2018-10-09 16:33:27 +01:00