Commit graph

3288 commits

Author SHA1 Message Date
Gilles Peskine f2223c868d New driver method: allocate
Add a driver method to allocate a key slot for a key that is about to
be created.
2019-07-12 23:33:02 +02:00
Gilles Peskine 8597bc13e7 Pass the driver context to most driver methods
Pass the driver context to all driver methods except the ones that
operate on an already-setup operation context.

Rename `p_context` arguments to `op_context` to avoid confusion
between contexts.
2019-07-12 23:32:27 +02:00
Gilles Peskine 7a86da1d42 Define a driver context structure type
Define a structure that is to be instantiated once per driver
instance.

Define a driver initialization method and pass it the driver context.
2019-07-12 23:25:59 +02:00
Gilles Peskine f03143a4d1 Change driver key slot numbers to 64 bits
This slightly increases storage requirements, but works in more use
cases. In particular, it allows drivers to treat choose slot numbers
with a monotonic counter that is incremented each time a key is
created, without worrying about overflow in practice.
2019-07-12 23:18:29 +02:00
Gilles Peskine 6e59c42d1d Split the secure element driver method table memory layout
Instead of having one giant table containing all possible methods,
represent a driver's method table as a structure containing pointers
to substructures. This way a driver that doesn't implement a certain
class of operations can use NULL for this class as a whole instead of
storing NULL for each method.
2019-07-12 11:47:50 +02:00
Gilles Peskine e62b74e68f Add public-key export method 2019-07-12 11:47:50 +02:00
Adrian L. Shaw 2282cfa660 Remove GMAC algorithm (for now)
It can't be implemented with the current version of the API
2019-07-11 15:51:45 +01:00
Adrian L. Shaw fd2aed4d76 Document cipher modes 2019-07-11 15:47:40 +01:00
Jaeden Amero c19dcebbdd
Merge pull request #154 from yanesca/iotcrypt-789-update-tls-prf-to-multipart
Update TLS 1.2 PRF to multipart API
2019-07-04 11:53:04 +01:00
Gilles Peskine a8ade16ffd Gate secure element support by a separate config option
Secure element support has its own source file, and in addition
requires many hooks in other files. This is a nontrivial amount of
code, so make it optional (but default on).
2019-06-26 20:01:35 +02:00
Gilles Peskine c93a43bed6 Improve documentation 2019-06-26 11:21:41 +02:00
Janos Follath 844eb0e5fa Add tls12_prf_read for the new API
Technically we could have reused the old one for the new API, but then
we had to set an extra field during setup. The new version works when
all the fields that haven't been set explicitely are zero-initialised.
2019-06-26 09:15:08 +01:00
Janos Follath adbec81cc4 Remove the deprecated PSA_ALG_SELECT_RAW option
This change affects the psa_key_derivation_s structure. With the buffer
removed from the union, it is empty if MBEDTLS_MD_C is not defined.

We can avoid undefined behaviour by adding a new dummy field that is
always present or make the whole union conditional on MBEDTLS_MD_C.

In this latter case the initialiser macro has to depend on MBEDTLS_MD_C
as well. Furthermore the first structure would be either
psa_hkdf_key_derivation_t or psa_tls12_prf_key_derivation_t both of
which are very deep and would make the initialisation macro difficult
to maintain, therefore we go with the first option.
2019-06-26 09:15:08 +01:00
Janos Follath 999f648437 Add new psa_tls12_prf_key_derivation_t
As part of adapting TLS 1.2 key derivation to the PSA 1.0 API we need to
change the context structure.
2019-06-26 09:15:08 +01:00
Janos Follath e3e8166cdd Move PSA_PRE_1_0_KEY_DERIVATION to crypto_struct.h
We want to make the PRF context structure depend on this flag, but
crypto_extra.h is included after crypto_struct.h and having the
option at its original place would not affect crypto_struct.h.
2019-06-26 09:15:08 +01:00
Janos Follath 71a4c9125b Add flag for removing deprecated API
Add the compile time option PSA_PRE_1_0_KEY_DERIVATION. If this is not
turned on, then the function `psa_key_derivation()` is removed.

Most of the tests regarding key derivation haven't been adapted to the
new API yet and some of them have only been adapted partially. When this
new option is turned off, the tests using the old API and test cases
using the old API of partially adapted tests are skipped.

The sole purpose of this option is to make the transition to the new API
smoother. Once the transition is complete it can and should be removed
along with the old API and its implementation.
2019-06-26 09:15:08 +01:00
Gilles Peskine ed87d31d7d Specify the order of inputs for TLS-1.2 KDFs
From the implementation point of view does not make much difference to
constrain the input order.

We constrain it because, this way the code is easier to review, the data
flow easier to understand and the implementations in general are easier
to validate.
2019-06-25 12:02:31 +01:00
Gilles Peskine 45a8ca373c Fix typos in function argument names 2019-06-24 19:55:49 +02:00
Gilles Peskine d910e928e8 Declare a function to register a secure element driver 2019-06-24 14:10:24 +02:00
Gilles Peskine b6cadea6a5 Secure element driver structure
Define a structure type containing all the methods of a secure element
driver.
2019-06-24 14:10:24 +02:00
Gilles Peskine 4bac9a4c4b New function to get key slot statistics
New function mbedtls_psa_get_stats to obtain some data about how many
key slots are in use. This is intended for debugging and testing
purposes.
2019-06-05 16:38:42 +02:00
Gilles Peskine 1139249bfa Don't refer to PSA keys as slots anymore
The PSA documentation no longer uses the word "slot", so using it in
the Mbed Crypto documentation would be misleading.
2019-06-05 11:34:54 +02:00
Gilles Peskine f46f81ceb5 Remove obsolete key creation functions
Remove the key creation functions from before the attribute-based API,
i.e. the key creation functions that worked by allocating a slot, then
setting metadata through the handle and finally creating key material.
2019-06-05 11:34:54 +02:00
Gilles Peskine 2938268fb4 Merge remote-tracking branch 'upstream-crypto/development' into psa-api-1.0-beta-merge_development_20190524
Conflicts:
* library/ssl_cli.c, library/ssl_tls.c:
  Removed on the development branch. Keep them removed.
* include/psa/crypto_extra.h, library/psa_crypto_storage.c,
  tests/suites/test_suite_psa_crypto.data,
  tests/suites/test_suite_psa_crypto.function,
  tests/suites/test_suite_psa_crypto_persistent_key.data,
  tests/suites/test_suite_psa_crypto_slot_management.data,
  tests/suites/test_suite_psa_crypto_slot_management.function:
  Modified on the development branch only to implement the enrollment
  algorithm, which has been reimplemented on the API branch.
  Keep the API branch.
2019-05-29 09:57:29 +02:00
Gilles Peskine f25c9ec02e Minor documentation improvements 2019-05-27 14:08:27 +02:00
Gilles Peskine 96f0b3b1d3 Keys may allow a second algorithm
Add a second permitted algorithm to key policies.

This commit includes smoke tests that do not cover psa_copy_key.
2019-05-27 14:08:27 +02:00
Jaeden Amero 496c176d90
Merge pull request #266 from ARMmbed/psa-policy_alg2-poc
Keys may allow a second algorithm
2019-05-22 11:55:01 +01:00
Gilles Peskine 549ea8676a Minor documentation improvements 2019-05-22 11:45:59 +02:00
Gilles Peskine a9b9cf7d1e Document macros that are referenced
Without documentation, Doxygen does not generate hyperlinks when the
macro is referenced and prints out #PSA_xxx instead.
2019-05-21 19:18:33 +02:00
Gilles Peskine 6a21123619 Remove obsolete mentions of PSA_ERROR_EMPTY_SLOT
There are no more "empty slots", so finish removing the corresponding
error.
2019-05-21 19:11:07 +02:00
Gilles Peskine a741d39893 State that all error codes are negative 2019-05-21 18:43:27 +02:00
Gilles Peskine 737c6bef6a Fix grammar 2019-05-21 18:43:24 +02:00
Gilles Peskine 56e2dc8010 Use "sufficient buffer size" in buffer size macros
Don't use "safe buffer size", because this it's somewhat misleading to
make it about safety: a buffer size that's too small will lead to a
runtime error, not to undefined behavior.
2019-05-21 18:43:19 +02:00
Gilles Peskine 2cb9e39b50 Convert TLS1.2 KDF descriptions to multistep key derivation
Convert the description of PSA_ALG_TLS12_PRF and
PSA_ALG_TLS12_PSK_TO_MS to the key derivation API that takes one input
at a time rather than the old {secret,salt,label} interface.

Define a new input category "seed".
2019-05-21 18:43:19 +02:00
Gilles Peskine 6c6195d7ba Remove implementation comment from API specification 2019-05-21 18:43:19 +02:00
Gilles Peskine 4754cdeef8 Improve description of psa_open_key()
Remove obsolete reference to psa_make_key_persistent().
2019-05-21 18:43:18 +02:00
Gilles Peskine 536e20571a New macro to get the bit size of an elliptic curve 2019-05-21 17:06:03 +02:00
Gilles Peskine d6f371b1ba Keys may allow a second algorithm
Add a second permitted algorithm to key policies.

This commit includes smoke tests that do not cover psa_copy_key.
2019-05-21 17:06:03 +02:00
Gilles Peskine d7d43b9791 Convert code samples to the new attribute-based key creation API 2019-05-21 15:56:03 +02:00
Gilles Peskine a0c0655c91 Add missing declarations to the API document
PSA_KEY_ATTRIBUTES_INIT and psa_key_attributes_init weren't declared
in the API document, only defined in our implementation, but they are
referenced in the API document.
2019-05-21 15:54:54 +02:00
Jaeden Amero 3d07ffade2 Merge remote-tracking branch 'tls/development' into development
Resolve conflicts by performing the following operations:
    - Reject changes to files removed during the creation of Mbed Crypto
      from Mbed TLS.
    - Reject the addition of certificates that would not be used by any
      tests, including rejecting the addition of Makefile rules to
      generate these certificates.
    - Reject changes to error.c referencing modules that are not part of
      Mbed Crypto.

* origin/development: (80 commits)
  Style fix
  Fix test data
  Update test data
  Add some negative test cases
  Fix minor issues
  Add ChangeLog entry about listing all SAN
  Remove unneeded whitespaces
  Fix mingw CI failures
  Initialize psa_crypto in ssl test
  Check that SAN is not malformed when parsing
  Documentation fixes
  Fix ChangeLog entry
  Fix missing tls version test failures
  Fix typo
  Fix ChangeLog entry location
  Add changeLog entry
  Add test for export keys functionality
  Add function to retrieve the tls_prf type
  Add tests for the public tls_prf API
  Add public API for tls_prf
  ...
2019-05-21 08:57:44 +01:00
Jaeden Amero 31d1432233 Merge remote-tracking branch 'origin/pr/2530' into development
* origin/pr/2530: (27 commits)
  Style fix
  Fix test data
  Update test data
  Add some negative test cases
  Fix minor issues
  Add ChangeLog entry about listing all SAN
  Check that SAN is not malformed when parsing
  Documentation fixes
  Fix ChangeLog entry
  Fail in case critical crt policy not supported
  Update SAN parsing documentation
  change the type of hardware_module_name member
  Change mbedtls_x509_subject_alternative_name
  Add length checking in certificate policy parsing
  Rephrase x509_crt extension member description
  Rephrase changeLog entries
  Remove redundant memset()
  Propogate error when parsing SubjectAltNames
  Tidy up style in x509_info_subject_alt_name
  Print unparseable SubjectAlternativeNames
  ...
2019-05-20 18:02:25 +01:00
Jaeden Amero 9ebcf9b00a Merge remote-tracking branch 'origin/pr/2538' into development
* origin/pr/2538:
  Remove unneeded whitespaces
  Fix mingw CI failures
  Initialize psa_crypto in ssl test
  Fix missing tls version test failures
  Fix typo
  Fix ChangeLog entry location
  Add changeLog entry
  Add test for export keys functionality
  Add function to retrieve the tls_prf type
  Add tests for the public tls_prf API
  Add public API for tls_prf
  Add eap-tls key derivation in the examples.
  Add ChangeLog entry
  Add an extra key export function
  Have the temporary buffer allocated dynamically
  Zeroize secret data in the exit point
  Add a single exit point in key derivation function
2019-05-20 10:58:36 +01:00
Jaeden Amero fba7539ad7
Merge pull request #269 from ARMmbed/psa-slots_to_handles
Update API documentation to refer to handles and key ids, not slots
2019-05-17 10:18:34 +01:00
Gilles Peskine eff4942202
Merge pull request #268 from ARMmbed/psa-error_tampering_detected
Rename PSA_ERROR_TAMPERING_DETECTED to PSA_ERROR_CORRUPTION_DETECTED
2019-05-17 11:06:09 +02:00
Gilles Peskine 35ef36b62f Rename psa_generate_random_key back to psa_generate_key
generate_key is a more classical name. The longer name was only
introduced to avoid confusion with getting a key from a generator,
which is key derivation, but we no longer use the generator
terminology so this reason no longer applies.

perl -i -pe 's/psa_generate_random_key/psa_generate_key/g' $(git ls-files)
2019-05-17 10:56:57 +02:00
Gilles Peskine c93b80c350 Rename *KEYPAIR* to *KEY_PAIR*
Be consistent with PUBLIC_KEY.

perl -i -pe 's/KEYPAIR/KEY_PAIR/g' $(git ls-files)
2019-05-17 10:56:57 +02:00
Adrian L. Shaw 0a695bd13e Simplify description of psa_copy_key 2019-05-16 22:11:18 +02:00
Adrian L. Shaw 52d83dabd6 Mention psa_close_key in the description of psa_open_key 2019-05-16 22:11:17 +02:00
Adrian L. Shaw d56456cbe8 Improve descriptions that mention handles and fix incorrect mention of psa_create_key 2019-05-16 22:10:51 +02:00