Commit graph

3535 commits

Author SHA1 Message Date
Aurelien Jarno
5daa34f155 bn_mul.h: require at least ARMv6 to enable the ARM DSP code
Commit 16b1bd8932 "bn_mul.h: add ARM DSP optimized MULADDC code"
added some ARM DSP instructions that was assumed to always be available
when __ARM_FEATURE_DSP is defined to 1. Unfortunately it appears that
the ARMv5TE architecture (GCC flag -march=armv5te) supports the DSP
instructions, but only in Thumb mode and not in ARM mode, despite
defining __ARM_FEATURE_DSP in both cases.

This patch fixes the build issue by requiring at least ARMv6 in addition
to the DSP feature.
2019-08-03 14:18:54 +02:00
Gilles Peskine
72c8c5b352 Merge remote-tracking branch 'upstream-crypto/development' into psa-api-1.0-beta-merge_development_20190801
Conflict resolution:
* `scripts/config.pl`:
  Take the exclusion of `MBEDTLS_PSA_CRYPTO_SE_C` from the API branch.
  Take the removal of `MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C` (obsolete) from
  the development branch.
* `tests/scripts/all.sh`:
  Multiple instances of factoring a sequence of `config.pl` calls into
  a mere `config.pl baremetal` in the development branch, and a change in
  the composition of `baremetal` in the API branch. In each case, take the
  version from development.
* `tests/suites/test_suite_psa_crypto_slot_management.function`:
  A function became non-static in development and disappeared in the API
  branch. Keep the version from the API branch. Functions need to be
  non-static if they're defined but unused in some configurations,
  which is not the case for any function in this file at the moment.
* `tests/suites/test_suite_psa_crypto.function`:
  Consecutive changes in the two branches, reconciled.
2019-07-31 17:47:49 +02:00
Jaeden Amero
8dd1690993 Merge remote-tracking branch 'tls/development' into development
Resolve conflicts by performing the following operations:
- Reject changes related to building a crypto submodule, since Mbed
  Crypto is the crypto submodule.
- Reject X.509, NET, and SSL changes.
- Reject changes to README, as Mbed Crypto is a different project from
  Mbed TLS, with a different README.
- Avoid adding mention of ssl-opt.sh in a comment near some modified
  code in include/CMakeLists.txt (around where ENABLE_TESTING as added).
- Align config.pl in Mbed TLS with config.pl in Mbed Crypto where PSA
  options are concerned, to make future merging easier. There is no
  reason for the two to be different in this regard, now that Mbed TLS
  always depends on Mbed Crypto. Remaining differences are only the
  PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER option and the absence of X.509,
  NET, and SSL related options in Mbed Crypto's config.pl.
- Align config.h in Mbed Crypto with Mbed TLS's copy, with a few notable
  exceptions:
  - Leave CMAC on by default.
  - Leave storage on by default (including ITS emulation).
  - Avoid documenting the PSA Crypto API as is in beta stage in
    documentation for MBEDTLS_PSA_CRYPTO_C.
  The only remaining differences are a lack of X.509, NET, and SSL
  options in Mbed Crypto's config.h, as well as an additional
  Mbed-Crypto-specific PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER option.
  Documentation for the check params feature and related macros is also
  updated to match Mbed TLS's description.
- Reject tests/data_files/Makefile changes to generate DER versions of
  CRTs and keys, as none of those are used by Mbed Crypto tests.
- Add the "no PEM and no filesystem" test to all.sh, without ssl-opt.sh
  run, as Mbed Crypto doesn't have ssl-opt.sh. Also remove use of PSA
  Crypto storage and ITS emulation, since those depend on filesystem
  support.
- Reject addition of test when no ciphersuites have MAC to all.sh, as
  the option being tested, MBEDTLS_SSL_SOME_MODES_USE_MAC, is not
  present in Mbed Crypto.
- Use baremetal config in all.sh, as Mbed Crypto's baremetal
  configuration does exclude the net module (as it doesn't exist in Mbed
  Crypto)
- Reject cmake_subproject_build changes, continuing to link only
  libmbedcrypto.
- Reject changes to visualc and associated templates. Mbed Crypto
  doesn't need additional logic to handle submodule-sourced headers.
- Avoid adding fuzzers from Mbed TLS. The only relevant fuzzers are the
  privkey and pubkey fuzzers, but non-trivial work would be required to
  integrate those into Mbed Crypto (more than is comfortable in a merge
  commit).
- Reject addition of Docker wrappers for compat.sh and ssl-opt.sh, as
  those are not present in Mbed Crypto.
- Remove calls to SSL-related scripts from basic-in-docker.sh

Fix test errors by performing the following:
- Avoid using a link that Doxygen can't seem to resolve in Mbed Crypto,
  but can resolve in Mbed TLS. In documentation for
  MBEDTLS_CHECK_PARAMS, don't attempt to link to MBEDTLS_PARAM_FAILED.

* origin/development: (339 commits)
  Do not build fuzz on windows
  No booleans and import config
  Removing space before opening parenthesis
  Style corrections
  Syntax fix
  Fixes warnings from MSVC
  Add a linker flag to enable gcov in basic-build-test.sh
  Update crypto submodule to a revision with the HAVEGE header changes
  Test with MBEDTLS_ECP_RESTARTABLE
  Allow TODO in code
  Use the docstring in the command line help
  Split _abi_compliance_command into smaller functions
  Record the commits that were compared
  Document how to build the typical argument for -s
  Allow running /somewhere/else/path/to/abi_check.py
  tests: Limit each log to 10 GiB
  Warn if VLAs are used
  Remove redundant compiler flag
  Consistently spell -Wextra
  Fix parsing issue when int parameter is in base 16
  ...
2019-07-31 10:37:53 +01:00
Gilles Peskine
68cc433b5b Store key sizes in 16 bits in attributes
This is larger than the maximum key size introduced in the previous
commit, by design.

Make some room for flags (not used yet).
2019-07-30 21:08:38 +02:00
Gilles Peskine
c744d99386 Limit keys to 65528 bits
65528 bits is more than any reasonable key until we start supporting
post-quantum cryptography.

This limit is chosen to allow bit-sizes to be stored in 16 bits, with
65535 left to indicate an invalid value. It's a whole number of bytes,
which facilitates some calculations, in particular allowing a key of
exactly PSA_CRYPTO_MAX_STORAGE_SIZE to be created but not one bit
more.

As a resource usage limit, this is arguably too large, but that's out
of scope of the current commit.

Test that key import, generation and derivation reject overly large
sizes.
2019-07-30 20:58:33 +02:00
Gilles Peskine
7e0cff90b9 Move attribute fields to a substructure
Move the "core attributes" to a substructure of psa_key_attribute_t.
The motivation is to be able to use the new structure
psa_core_key_attributes_t internally.
2019-07-30 20:58:27 +02:00
Gilles Peskine
1801740a7c SE driver: report the bit size on key import
Add a parameter to the key import method of a secure element driver to
make it report the key size in bits. This is necessary (otherwise the
core has no idea what the bit-size is), and making import report it is
easier than adding a separate method (for other key creation methods,
this information is an input, not an output).
2019-07-29 18:07:09 +02:00
Gilles Peskine
adb1c52149
Merge pull request #157 from gilles-peskine-arm/psa-se_driver-create_key
Secure element key creation foundation
2019-07-26 14:39:55 +02:00
Gilles Peskine
0c3ae1f0b4 Improve documentation of SE driver persistent state
Explain what it can be used for and when it is saved to storage.
2019-07-25 14:04:38 +02:00
Gilles Peskine
6a3dd89a64 Improve alignment in comments 2019-07-25 10:56:39 +02:00
Gilles Peskine
d0e66b00fb Turn off secure element support by default
Secure element support is not yet usable in the real world. Only part
of the feature is implemented and the part that's implemented is not
sufficient for real-world uses. A lot of error handling is missing,
and there are no tests.

This commit should be reverted once the feature has stabilized.
2019-07-24 13:52:51 +02:00
Gilles Peskine
105f67f0fa Move the definition of psa_key_attributes_t to crypto_types.h
psa_key_attributes_t is used in the SE driver HAL, so it must be
defined in a common header, not in the API-only header crypto.h.
2019-07-23 18:43:28 +02:00
Gilles Peskine
9dd125d8bb Fix overly complex Doxygen markup 2019-07-23 18:43:28 +02:00
Gilles Peskine
6032673b39 Fix Doxygen reference
Pass doxygen.sh
2019-07-22 20:10:36 +02:00
Gilles Peskine
2838b7bfba Use smaller types in mbedtls_md_info_t
Saves a few bytes of code size.
2019-07-22 11:35:19 +02:00
Gilles Peskine
84867cffdd Don't use dynamic pointer dispatch in md
In the generic message digest abstraction, instead of storing method
pointers in the per-algorithm data structure and using wrapper
functions as those methods, call the per-algorithm function directly.

This saves some code size (2336B -> 2043B for md with all algorithms
enabled on M0+ with gcc -Os). This should also make it easier to
optimize the case when a single algorithm is supported. In addition,
this is a very slight security improvement since it removes one
opportunity for a buffer overflow to directly turn into letting the
attacker overwrite a pointer to a function pointer.

This commit does not modify the documented API. However, it removes
the possibility for users to define their own hash implementations and
use them by building their own md_info.

Changing mbedtls_md_context to contain a md type identifier rather
than a pointer to an info structure would save a few more bytes and a
few more runtime memory accesses, but would be a major API break since
a lot of code uses `const mbedtls_md_info *` to keep track of which
hash is in use.
2019-07-22 11:35:15 +02:00
Manuel Pégourié-Gonnard
2306d15344 Declare new config.h option MBEDTLS_SHA512_SMALLER 2019-07-17 13:05:41 +02:00
Jaeden Amero
b8e4ae18cf Remove certs.h
certs.h is not needed in Mbed Crypto. No programs or other library code
use it.
2019-07-15 15:52:25 +01:00
Jaeden Amero
8045cfbaa8 Enable ALT implementations of ripemd160
In configurations wanting an alternative ripemd160 implementation, We
were including the ordinary Mbed Crypto ripemd160.h instead of the
user-provided ripemd160_alt.h. Use the user-provided header instead.
2019-07-15 15:52:25 +01:00
Jaeden Amero
c49fbbf3eb Use mbedtls-based path for includes
To help the build system find the correct include files, paths starting
with "mbedtls/" or "psa/" must be used. Otherwise, you can run into
build failures like the following when building Mbed Crypto as a
submodule.

    In file included from chachapoly.c:31:0:
    ../../include/mbedtls/chachapoly.h:43:10: fatal error: poly1305.h: No such file or directory
     #include "poly1305.h"
              ^~~~~~~~~~~~
    compilation terminated.

Includes for ALT implementations are not modified, as the alt headers
are provided by system integrators and not Mbed TLS or Mbed Crypto.
2019-07-15 15:52:25 +01:00
Gilles Peskine
c11c4dcf95 Favor stdint.h types in internal types
Use uint8_t for PSA buffers. Keep unsigned char for generic libc
buffers and for mbedtls buffers.
2019-07-15 11:17:53 +02:00
Gilles Peskine
7228da25f9 Favor stdint.h types in implementation-specific API 2019-07-15 11:16:18 +02:00
Gilles Peskine
f82088a5f4 Favor stdint.h types in example code 2019-07-15 11:16:18 +02:00
Andrew Thoelke
d16bdac9b5 Use stdint.h types in multipart AEAD functions
No implementation yet.
2019-07-15 11:14:56 +02:00
Andrew Thoelke
47629d076e Use stdint.h types
Follow MISRA C 2012 rules by using exact width types from stdint.h.
2019-07-15 11:14:56 +02:00
Gilles Peskine
94cc42c28f Pass a writable pointer to the persistent data when needed
Most driver methods are not allowed to modify the persistent data, so
the driver context structure contains a const pointer to it. Pass a
non-const pointer to the persstent data to the driver methods that
need it: init, allocate, destroy.
2019-07-12 23:34:20 +02:00
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
Jaeden Amero
072959f5c2 Merge remote-tracking branch 'origin/pr/1622' into development
* origin/pr/1622: (29 commits)
  Do not build fuzz on windows
  No booleans and import config
  Removing space before opening parenthesis
  Style corrections
  Syntax fix
  Fixes warnings from MSVC
  Add a linker flag to enable gcov in basic-build-test.sh
  checks MBEDTLS_PEM_PARSE_C
  Restore programs/fuzz/Makefile after in-tree cmake
  Move fuzz directory to programs
  Documentation for corpus generation
  Restore tests/fuzz/Makefile after in-tree cmake
  Adding ifdefs to avoid warnings for unused globals
  Adds LDFLAGS fsanitize=address
  Ignore compiled object files and executables
  Also clean the fuzz subdirectory
  copyediting README.md
  Protecting client/server fuzz targts with ifdefs
  Makefile support 1
  Fuzz README and direct compilation
  ...
2019-07-11 16:17:18 +01:00
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
6d77d20f3a Merge remote-tracking branch 'origin/pr/2632' into development
* origin/pr/2632:
  Adapt ChangeLog
  Avoid use of large stack buffers in mbedtls_x509_write_crt_pem()
  Improve documentation of mbedtls_pem_write_buffer()
  Perform CRT writing in-place on the output buffer
  Adapt x509write_crt.c to coding style
2019-07-10 07:54:37 +01:00
Jaeden Amero
482a479ef0 Merge remote-tracking branch 'origin/pr/2699' into development
* origin/pr/2699:
  Update crypto submodule to a revision with the HAVEGE header changes
  Fix misuse of signed ints in the HAVEGE module
2019-07-05 15:41:39 +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
Philippe Antoine
dbc0db9449 include bignum.h from x509_crt.h 2019-06-21 19:47:27 +02:00
Jaeden Amero
66b7edb108 Merge remote-tracking branch 'origin/pr/2711' into development
* origin/pr/2711:
  programs: Make `make clean` clean all programs always
  ssl_tls: Enable Suite B with subset of ECP curves
  windows: Fix Release x64 configuration
  platform: Include stdarg.h where needed
  timing: Remove redundant include file
  net_sockets: Fix typo in net_would_block()
2019-06-21 14:09:10 +01:00
Jaeden Amero
fd0f65459c Merge remote-tracking branch 'origin/pr/2697' into development
* origin/pr/2697:
  Update crypto submodule
  Add all.sh component that exercises invalid_param checks
  Remove mbedtls_param_failed from programs
  Make it easier to define MBEDTLS_PARAM_FAILED as assert
  Make test suites compatible with #include <assert.h>
  Pass -m32 to the linker as well
  Don't systematically rebuild programs
2019-06-21 13:21:05 +01:00
Jaeden Amero
32eb58ff29 platform: Include stdarg.h where needed
Windows builds also need stdarg.h included when using variadic
functions.

Fixes #2656
2019-06-20 10:53:49 +01:00
Gilles Peskine
f3820e36f7 Fix misuse of signed ints in the HAVEGE module
Update havege.h to the new version in the crypto module.

This is technically an API break, since the type mbedtls_havege_state
is exposed in a public header. However normal applications should not
be affected.

There is no ABI break on platforms where uint32_t and int are treated
identically, which is virtually all of them.

Fix #2598
2019-06-14 19:26:55 +02:00
Gilles Peskine
7846299adb Fix misuse of signed ints in the HAVEGE module
The elements of the HAVEGE state are manipulated with bitwise
operations, with the expectations that the elements are 32-bit
unsigned integers (or larger). But they are declared as int, and so
the code has undefined behavior. Clang with Asan correctly points out
some shifts that reach the sign bit.

Since these are supposed to be 32-bit unsigned integers, declare them
as uint32_t.

This is technically an API break, since the type mbedtls_havege_state
is exposed in a public header. However normal applications should not
be affected.
2019-06-14 19:23:10 +02:00
Jaeden Amero
e1b02df515 Merge remote-tracking branch 'origin/pr/2260' into development
* origin/pr/2260:
  Update crypto submodule
  Remove heading spaces in tests/data_files/Makefile
  Re-generate library/certs.c from script
  Add new line at the end of test-ca2.key.enc
  Use strict syntax to annotate origin of test data in certs.c
  Add run to all.sh exercising !MBEDTLS_PEM_PARSE_C + !MBEDTLS_FS_IO
  Allow DHM self test to run without MBEDTLS_PEM_PARSE_C
  ssl-opt.sh: Auto-skip tests that use files if MBEDTLS_FS_IO unset
  Document origin of hardcoded certificates in library/certs.c
  Adapt ChangeLog
  Rename server1.der to server1.crt.der
  Add DER encoded files to git tree
  Add build instructions to generate DER versions of CRTs and keys
  Document "none" value for ca_path/ca_file in ssl_client2/ssl_server2
  ssl_server2: Skip CA setup if `ca_path` or `ca_file` argument "none"
  ssl_client2: Skip CA setup if `ca_path` or `ca_file` argument "none"
  Correct white spaces in ssl_server2 and ssl_client2
  Adapt ssl_client2 to parse DER encoded test CRTs if PEM is disabled
  Adapt ssl_server2 to parse DER encoded test CRTs if PEM is disabled
2019-06-14 08:46:48 +01:00
Gilles Peskine
c7ad122f51 Make it easier to define MBEDTLS_PARAM_FAILED as assert
Introduce a new configuration option MBEDTLS_CHECK_PARAMS_ASSERT,
which is disabled by default. When this option is enabled,
MBEDTLS_PARAM_FAILED defaults to assert rather than to a call to
mbedtls_param_failed, and <assert.h> is included.

This fixes #2671 (no easy way to make MBEDTLS_PARAM_FAILED assert)
without breaking backward compatibility. With this change,
`config.pl full` runs tests with MBEDTLS_PARAM_FAILED set to assert,
so the tests will fail if a validation check fails, and programs don't
need to provide their own definition of mbedtls_param_failed().
2019-06-13 16:51:59 +02:00
Jaeden Amero
d58a00d5b7 psa: Avoid use of relative include paths
Relative include paths should be avoided. The build system will
determine where to pull in includes from. Specifically, `#include
"../mbedtls/config.h"` shouldn't be used. Use `#include
"mbedtls/config.h` instead, so that the submodule-building makefiles can
change which directory to use to get mbedtls include files from.

Fixes #141
2019-06-07 11:49:59 +01:00
Jaeden Amero
bb16d0c956 Merge remote-tracking branch 'origin/pr/2654' into development
* origin/pr/2654:
  Create link to include/mbedtls only when testing is enabled
2019-06-06 14:18:23 +01:00
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
Hanno Becker
960e588278 Document origin of hardcoded certificates in library/certs.c
All of them are copied from (former) CRT and key files in `tests/data_files`.
For files which have been regenerated since they've been copied to `certs.c`,
update the copy.

Add declarations for DER encoded test CRTs to certs.h

Add DER encoded versions of CRTs to certs.c

fix comment in certs.c

Don't use (signed) char for DER encoded certificates

Consistently use `const char *` for test CRTs regardless of encoding

Remove non-sensical and unused PW variable for DER encoded key

Provide test CRTs in PEM and DER fmt, + pick suitable per config

This commit modifies `certs.h` and `certs.c` to start following the
following pattern for the provided test certificates and files:

- Raw test data is named `NAME_ATTR1_ATTR2_..._ATTRn`

  For example, there are
     `TEST_CA_CRT_{RSA|EC}_{PEM|DER}_{SHA1|SHA256}`.

- Derived test data with fewer attributes, iteratively defined as one
  of the raw test data instances which suits the current configuration.

  For example,
     `TEST_CA_CRT_RSA_PEM`
  is one of `TEST_CA_CRT_RSA_PEM_SHA1` or `TEST_CA_CRT_RSA_PEM_SHA256`,
  depending on whether SHA-1 and/or SHA-256 are defined in the current
  config.

Add missing public declaration of test key password

Fix signedness and naming mismatches

Further improve structure of certs.h and certs.c

Fix definition of mbedtls_test_cas test CRTs depending on config

Remove semicolon after macro string constant in certs.c
2019-06-03 17:46:56 +01:00
Hanno Becker
3739e203cf Disable Connection ID feature by default 2019-06-03 16:07:50 +01:00
Hanno Becker
1125952107 Expand CID to Connection ID in documentation of mbedtls_ssl_conf_cid 2019-06-03 16:07:50 +01:00
Hanno Becker
615ef17b67 Allow passing NULL pointers to mbedtls_ssl_get_peer_cid()
This commit modifies mbedtls_ssl_get_peer_cid() to also allow passing
NULL pointers in the arguments for the peer's CID value and length, in
case this information is needed.

For example, some users might only be interested in whether the use of
the CID was negotiated, in which case both CID value and length pointers
can be set to NULL. Other users might only be interested in confirming
that the use of CID was negotiated and the peer chose the empty CID,
in which case the CID value pointer only would be set to NULL.
It doesn't make sense to pass a NULL pointer for the CID length but a
non-NULL pointer for the CID value, as the caller has no way of telling
the length of the returned CID - and this case is therefore forbidden.
2019-06-03 16:07:50 +01:00
Hanno Becker
62e5afabcb Fix typo in Doxygen documentation of mbedtls_ssl_conf_cid() 2019-06-03 16:07:50 +01:00
Hanno Becker
a0e20d04b2 Rename MBEDTLS_SSL_CID to MBEDTLS_SSL_DTLS_CONNECTION_ID
Files modified via

sed -i 's/MBEDTLS_SSL_CID\([^_]\|$\)/MBEDTLS_SSL_DTLS_CONNECTION_ID\1/g' **/*.c **/*.h **/*.sh **/*.function
2019-06-03 16:07:50 +01:00
Hanno Becker
ebcc9137ca Consistently reference CID draft through name + URL 2019-06-03 16:07:50 +01:00
Hanno Becker
f1a2808b8f Fix typo in documentation of mbedtls_ssl_context::cid_in_use 2019-06-03 16:07:50 +01:00
Hanno Becker
fb034e852e Improve wording of documentation of mbedtls_ssl_get_peer_cid() 2019-06-03 16:07:50 +01:00
Hanno Becker
5cc145d4db Slightly reword documentation of mbedtls_ssl_set_cid() 2019-06-03 16:07:50 +01:00
Hanno Becker
08cd9db836 Use full sentences in Doxygen documentation of mbedtls_ssl_set_cid() 2019-06-03 16:07:50 +01:00
Hanno Becker
08cbc0c19e Use uniform spacing in def's of MBEDTLS_SSL_CID_{IN|OUT}_LEN_MAX 2019-06-03 16:07:50 +01:00
Hanno Becker
d9d4adbeae Improve wording in documentation of mbedtls_ssl_set_cid() 2019-06-03 16:07:50 +01:00
Hanno Becker
4cac442211 Update references to CID draft to version 5 2019-06-03 16:07:50 +01:00
Hanno Becker
56f81c7178 Improve wording in documentation of MBEDTLS_SSL_CID 2019-06-03 16:07:50 +01:00
Hanno Becker
7fefd83b34 Modify MBEDTLS_SSL_UNEXPECTED_CID_{FAIL|IGNORE} to ignore by default 2019-06-03 16:07:50 +01:00
Hanno Becker
8367ccc03b Allow to configure the stack's behaviour on unexpected CIDs
This commit modifies the CID configuration API mbedtls_ssl_conf_cid_len()
to allow the configuration of the stack's behaviour when receiving an
encrypted DTLS record with unexpected CID.
2019-06-03 16:07:50 +01:00
Hanno Becker
c37c96a3c5 Add specific SSL error code for unexpected CIDs
Currently, the stack silently ignores DTLS frames with an unexpected CID.
However, in a system which performs CID-based demultiplexing before passing
datagrams to the Mbed TLS stack, unexpected CIDs are a sign of something not
working properly, and users might want to know about it.

This commit introduces an SSL error code MBEDTLS_ERR_SSL_UNEXPECTED_CID
which the stack can return in response to an unexpected CID. It will
conditionally be put to use in subsequent commits.
2019-06-03 16:07:50 +01:00
Hanno Becker
b9ec44fcf6 Remove restriction on value of MBEDTLS_SSL_CID_PADDING_GRANULARITY 2019-06-03 16:07:50 +01:00
Hanno Becker
ddf775a97f Reword CID documentation 2019-06-03 16:07:50 +01:00
Hanno Becker
b1aa1b3616 Allow the configuration of padding when using CID extension 2019-06-03 16:07:50 +01:00
Hanno Becker
22a59fdca8 Remove indicators and warnings about unfinished CID implementation 2019-06-03 16:07:50 +01:00
Hanno Becker
f9c6a4bea1 Add pointers to in/out CID fields to mbedtls_ssl_context
mbedtls_ssl_context contains pointers in_buf, in_hdr, in_len, ...
which point to various parts of the header of an incoming TLS or
DTLS record; similarly, there are pointers out_buf, ... for
outgoing records.

This commit adds fields in_cid and out_cid which point to where
the CID of incoming/outgoing records should reside, if present,
namely prior to where the record length resides.

Quoting https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-04:

   The DTLSInnerPlaintext value is then encrypted and the CID added to
   produce the final DTLSCiphertext.

        struct {
            ContentType special_type = tls12_cid; /* 25 */
            ProtocolVersion version;
            uint16 epoch;
            uint48 sequence_number;
            opaque cid[cid_length];               // New field
            uint16 length;
            opaque enc_content[DTLSCiphertext.length];
        } DTLSCiphertext;

For outgoing records, out_cid is set in ssl_update_out_pointers()
based on the settings in the current outgoing transform.

For incoming records, ssl_update_in_pointers() sets in_cid as if no
CID was present, and it is the responsibility of ssl_parse_record_header()
to update the field (as well as in_len, in_msg and in_iv) when parsing
records that do contain a CID. This will be done in a subsequent commit.

Finally, the code around the invocations of ssl_decrypt_buf()
and ssl_encrypt_buf() is adapted to transfer the CID from the
input/output buffer to the CID field in the internal record
structure (which is what ssl_{encrypt/decrypt}_buf() uses).

Note that mbedtls_ssl_in_hdr_len() doesn't need change because
it infers the header length as in_iv - in_hdr, which will account
for the CID for records using such.
2019-06-03 16:07:50 +01:00
Hanno Becker
6cbad5560d Account for additional record expansion when using CIDs
Using the Connection ID extension increases the maximum record expansion
because
- the real record content type is added to the plaintext
- the plaintext may be padded with an arbitrary number of
  zero bytes, in order to prevent leakage of information
  through package length analysis. Currently, we always
  pad the plaintext in a minimal way so that its length
  is a multiple of 16 Bytes.

This commit adapts the various parts of the library to account
for that additional source of record expansion.
2019-06-03 16:07:50 +01:00
Hanno Becker
ad4a137965 Add CID configuration API
Context:
The CID draft does not require that the length of CIDs used for incoming
records must not change in the course of a connection. Since the record
header does not contain a length field for the CID, this means that if
CIDs of varying lengths are used, the CID length must be inferred from
other aspects of the record header (such as the epoch) and/or by means
outside of the protocol, e.g. by coding its length in the CID itself.

Inferring the CID length from the record's epoch is theoretically possible
in DTLS 1.2, but it requires the information about the epoch to be present
even if the epoch is no longer used: That's because one should silently drop
records from old epochs, but not the entire datagrams to which they belong
(there might be entire flights in a single datagram, including a change of
epoch); however, in order to do so, one needs to parse the record's content
length, the position of which is only known once the CID length for the epoch
is known. In conclusion, it puts a significant burden on the implementation
to infer the CID length from the record epoch, which moreover mangles record
processing with the high-level logic of the protocol (determining which epochs
are in use in which flights, when they are changed, etc. -- this would normally
determine when we drop epochs).

Moreover, with DTLS 1.3, CIDs are no longer uniquely associated to epochs,
but every epoch may use a set of CIDs of varying lengths -- in that case,
it's even theoretically impossible to do record header parsing based on
the epoch configuration only.

We must therefore seek a way for standalone record header parsing, which
means that we must either (a) fix the CID lengths for incoming records,
or (b) allow the application-code to configure a callback to implement
an application-specific CID parsing which would somehow infer the length
of the CID from the CID itself.

Supporting multiple lengths for incoming CIDs significantly increases
complexity while, on the other hand, the restriction to a fixed CID length
for incoming CIDs (which the application controls - in contrast to the
lengths of the CIDs used when writing messages to the peer) doesn't
appear to severely limit the usefulness of the CID extension.

Therefore, the initial implementation of the CID feature will require
a fixed length for incoming CIDs, which is what this commit enforces,
in the following way:

In order to avoid a change of API in case support for variable lengths
CIDs shall be added at some point, we keep mbedtls_ssl_set_cid(), which
includes a CID length parameter, but add a new API mbedtls_ssl_conf_cid_len()
which applies to an SSL configuration, and which fixes the CID length that
any call to mbetls_ssl_set_cid() which applies to an SSL context that is bound
to the given SSL configuration must use.

While this creates a slight redundancy of parameters, it allows to
potentially add an API like mbedtls_ssl_conf_cid_len_cb() later which
could allow users to register a callback which dynamically infers the
length of a CID at record header parsing time, without changing the
rest of the API.
2019-06-03 16:07:50 +01:00
Hanno Becker
3b154c129e Re-implement mbedtls_ssl_{in/out}_hdr_len() via in/out pointers 2019-06-03 16:07:50 +01:00
Hanno Becker
5903de45b6 Split mbedtls_ssl_hdr_len() in separate functions for in/out records
The function mbedtls_ssl_hdr_len() returns the length of the record
header (so far: always 13 Bytes for DTLS, and always 5 Bytes for TLS).

With the introduction of the CID extension, the lengths of record
headers depends on whether the records are incoming or outgoing,
and also on the current transform.

Preparing for this, this commit splits mbedtls_ssl_hdr_len() in two
-- so far unmodified -- functions mbedtls_ssl_in_hdr_len() and
mbedtls_ssl_out_hdr_len() and replaces the uses of mbedtls_ssl_hdr_len()
according to whether they are about incoming or outgoing records.

There is no need to change the signature of mbedtls_ssl_{in/out}_hdr_len()
in preparation for its dependency on the currently active transform,
since the SSL context is passed as an argument, and the currently
active transform is referenced from that.
2019-06-03 16:07:50 +01:00
Hanno Becker
fe6bb8ccc2 Unify documentation of internal SSL record structure
- Don't use Doxygen style comments
- Document CID and CID length fields.
2019-06-03 14:47:36 +01:00
Hanno Becker
75f080f4b6 Use MBEDTLS_ namespace for internal CID length constant 2019-06-03 14:47:36 +01:00
Hanno Becker
8b3eb5ab82 Implement inner plaintext parsing/writing for CID-based connections 2019-06-03 14:47:36 +01:00
Hanno Becker
f2ed4482d7 Add CID field to internal structure representing TLS records
This commit adds a static array `cid` to the internal structure
`mbedtls_record` representing encrypted and decrypted TLS records.

The expected evolution of state of this field is as follows:
- When handling an incoming record, the caller of `mbedtls_decrypt_buf()`
  has to make sure the CID array field in `mbedtls_record` has been
  properly set. Concretely, it will be copied from the CID from the record
  header during record parsing.
- During decryption in `mbedtls_decrypt_buf()`, the transforms
  incoming CID is compared to the CID in the `mbedtls_record`
  structure representing the record to be decrypted.
- For an outgoing TLS record, the caller of `mbedtls_encrypt_buf()`
  clears the CID in the `mbedtls_record` structure.
- During encryption in `mbedtls_encrypt_buf()`, the CID field in
  `mbedtls_record` will be copied from the out-CID in the transform.
2019-06-03 14:47:36 +01:00
Hanno Becker
1c1f046804 Replace 'ingoing' -> 'incoming' in CID debug messages 2019-06-03 14:43:16 +01:00
Hanno Becker
c5f2422116 Document behaviour of mbedtls_ssl_get_peer_cid() for empty CIDs 2019-06-03 14:43:16 +01:00
Hanno Becker
064b732d11 Use unused extension ID as tentative ID for CID extension 2019-06-03 14:43:16 +01:00
Hanno Becker
1327fa7d14 Add fields holding in/out CIDs to SSL record transformation struct
These will be copied from the CID fields in mbedtls_ssl_handshake_params
(outgoing CID) and mbedtls_ssl_context (incoming CID) when the transformation
is set up at the end of the handshake.
2019-06-03 14:43:16 +01:00
Hanno Becker
189a01309f Check static bounds of CID lengths in check_config.h 2019-06-03 14:43:16 +01:00
Hanno Becker
0652bc50c7 Add identifier for CID extension
Note: The current draft

   https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-04

does not yet specify the extension value, so we
use a temporary value of 42.
2019-06-03 14:43:16 +01:00
Hanno Becker
2f28c1031f Add fields to SSL structures describing state and config of CID ext
* mbedtls_ssl_context gets fields indicating whether the CID extension
  should be negotiated in the next handshake, and, if yes, which CID
  the user wishes the peer to use.

  This information does not belong to mbedtls_ssl_handshake_params
  because (a) it is configured prior to the handshake, and (b) it
  applies to all subsequent handshakes.

* mbedtls_ssl_handshake_params gets fields indicating the state of CID
  negotiation during the handshake. Specifically, it indicates if the
  use of the CID extension has been negotiated, and if so, which CID
  the peer wishes us to use for outgoing messages.
2019-06-03 14:43:16 +01:00
Hanno Becker
f1f9a82320 Add warnings about status of implementation of CID API 2019-06-03 14:42:08 +01:00
Hanno Becker
4f664cbb5c Clarify that mbedtls_ssl_set_cid() applies to all subsequent HSs 2019-06-03 14:42:08 +01:00
Hanno Becker
318a87b336 Document that the use of CID is disabled by default.
(Even if MBEDTLS_SSL_CID is set in config.h)
2019-06-03 14:42:08 +01:00
Hanno Becker
9742809531 Reference CID Draft in Connection ID documentation in config.h 2019-06-03 14:42:08 +01:00
Hanno Becker
bb47cd906f Add dep of MBEDTLS_SSL_CID on MBEDTLS_SSL_PROTO_DTLS to config check 2019-06-03 14:42:08 +01:00
Hanno Becker
019f4b58de Add API for the use of the DTLS Connection ID extension 2019-06-03 14:42:08 +01:00
Hanno Becker
2234e650f7 Add new configuration option controlling CID extension 2019-06-03 14:42:08 +01:00
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
Renz Christian Bagaporo
d8a40b5725 Create link to include/mbedtls only when testing is enabled 2019-05-23 18:48:13 +08:00
Jaeden Amero
2ab5cf658f Merge remote-tracking branch 'origin/pr/2403' into development
* origin/pr/2403: (24 commits)
  crypto: Update to Mbed Crypto 8907b019e7
  Create seedfile before running tests
  crypto: Update to Mbed Crypto 81f9539037
  ssl_cli.c : add explicit casting to unsigned char
  Generating visualc files - let Mbed TLS take precedence over crypto
  Add a link to the seedfile for out-of-tree cmake builds
  Adjust visual studio file generation to always use the crypto submodule
  all.sh: unparallelize mingw tests
  all.sh - disable parallelization for shared target tests
  config.pl: disable PSA_ITS_FILE and PSA_CRYPTO_STORAGE for baremetal
  all.sh: unset crypto storage define in a psa full config cmake asan test
  all.sh: unset FS_IO-dependent defines for tests that do not have it
  curves.pl - change test script to not depend on the implementation
  Export the submodule flag to sub-cmakes
  Disable MBEDTLS_ECP_RESTARTABLE in full config
  Export the submodule flag to sub-makes
  Force the usage of crypto submodule
  Fix crypto submodule usage in Makefile
  Documentation rewording
  Typo fixes in documentation
  ...
2019-05-23 09:08:55 +01:00
Jaeden Amero
7525aa06c1 Merge remote-tracking branch 'origin/pr/2410' into development
* origin/pr/2410:
  Update change log
  Document the default value for the maximum fragment length
  Improve clarity of mbedtls_ssl_conf_max_frag_len documentation
  Reword ssl_conf_max_frag_len documentation
  Fix typos and miswording in the mbedtls_ssl_conf_max_frag_len documentation comment
  Reword ssl_conf_max_frag_len documentation to clarify its necessity
2019-05-23 09:08:01 +01:00
Andrzej Kurek
d65b11d868 Documentation rewording 2019-05-23 03:01:35 -04:00
Andrzej Kurek
d3deb1d738 Typo fixes in documentation 2019-05-23 03:01:35 -04:00
Manuel Pégourié-Gonnard
971dea3745 Enable USE_PSA_CRYPTO with config.pl full
Previously it was disabled as too experimental, which no longer holds. Also,
this option introduces new APIs, so it's not only about an internal
alternative (as the comment in config.pl used to state) - people who request a
full config should get all of the available APIs.

Adapt all.sh: now all builds with full config will also test this option, and
builds with the default config will test without it. Just to be sure, let's
have a build with full config minus this option.

Update documentation of MBEDTLS_USE_PSA_CRYPTO to reflect the status of the
new APIs it enables in Mbed TLS and why they're still opt-in.
2019-05-23 03:01:35 -04:00
Manuel Pégourié-Gonnard
de7636e2dd Enable MBEDTLS_PSA_CRYPTO_C by default
Also enable it in scripts/config.pl full, as well as two storage options that
were only blacklisted from full config because they depended on
MBEDTLS_PSA_CRYPTO_C.
2019-05-23 03:01:35 -04:00
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
Adrian L. Shaw
67e1c7ac80 Remove remaining mentions of slots 2019-05-16 22:10:49 +02:00
Gilles Peskine
4b3eb69271 Rename PSA_ERROR_TAMPERING_DETECTED to ..._CORRUPTION_DETECTED
“Tampering detected” was misleading because in the real world it can
also arise due to a software bug. “Corruption detected” is neutral and
more precisely reflects what can trigger the error.

perl -i -pe 's/PSA_ERROR_TAMPERING_DETECTED/PSA_ERROR_CORRUPTION_DETECTED/gi' $(git ls-files)
2019-05-16 21:35:18 +02:00
Gilles Peskine
27a983d93c Grammar fix 2019-05-16 19:51:11 +02:00
Gilles Peskine
20a77aeac7 RSA key generation: require e=65537 2019-05-16 19:51:10 +02:00
Gilles Peskine
a130219ac0 Move remaining text about DSA out of the specification 2019-05-16 19:51:10 +02:00
Gilles Peskine
e38ab1ac4f Move DSA definitions out of the specification
Move DSA-related key types and algorithms to the
implementation-specific header file. Not that we actually implement
DSA, but with domain parameters, we should be able to.
2019-05-16 19:51:10 +02:00
Gilles Peskine
dcaefae849 Parametrize Diffie-Hellman keys by a group identifier
Parametrize finite-field Diffie-Hellman key types with a DH group
identifier, in the same way elliptic curve keys are parametrized with
an EC curve identifier.

Define the DH groups from the TLS registry (these are the groups from
RFC 7919).

Replicate the macro definitions and the metadata tests from elliptic
curve identifiers to DH group identifiers.

Define PSA_DH_GROUP_CUSTOM as an implementation-specific extension for
which domain parameters are used to specify the group.
2019-05-16 19:51:10 +02:00
Gilles Peskine
24f10f85e2 Remove domain parameters from the official API
Move psa_get_key_domain_parameters() and
psa_set_key_domain_parameters() out of the official API and declare
them to be implementation-specific extensions.

Expand the documentation of psa_set_key_domain_parameters() a bit to
explain how domain parameters are used.

Remove all mentions of domain parameters from the documentation of API
functions. This leaves DH and DSA effectively unusable.
2019-05-16 19:27:05 +02:00
Gilles Peskine
58fe9e8afe Correct the description of psa_raw_key_agreement
There was some copypasta from the KA+KDF function's description.
2019-05-16 18:55:25 +02:00
Gilles Peskine
be697d8324 Shorten the name of psa_key_agreement_raw_shared_secret
There is less of a risk of confusion with the KA+KDF function now.
2019-05-16 18:55:25 +02:00
Gilles Peskine
1cb9a08d6a Reorder key derivation functions in the header file
Present key derivation functions in a more logical order,
corresponding roughly to the order in which an application would call
them.
2019-05-16 18:55:25 +02:00
Gilles Peskine
cf7292e257 Wrap and reindent some lines
After renaming several identifiers, re-wrap and re-indent some lines
to make the code prettier.
2019-05-16 18:55:25 +02:00
Gilles Peskine
35675b6b26 Terminology: say "key derivation operation", not "generator"
Generators are mostly about key derivation (currently: only about key
derivation). "Generator" is not a commonly used term in cryptography.
So favor "derivation" as terminology.

This commit updates the function descriptions.
2019-05-16 18:55:25 +02:00
Gilles Peskine
cbe6650394 Rename generator-related internal identifiers
perl -pe 's/crypto_generator/key_derivation/gi' $(git ls-files)
    perl -pe 's/_generator/_key_derivation/gi' $(git ls-files)
2019-05-16 18:55:25 +02:00
Gilles Peskine
03410b5c5f Rename PSA_KDF_STEP_xxx -> PSA_KEY_DERIVATION_INPUT_xxx
More consistent with the new function names.
2019-05-16 18:55:25 +02:00
Gilles Peskine
a99d3fbd05 Rename generator functions to psa_key_derivation_xxx
Generators are mostly about key derivation (currently: only about key
derivation). "Generator" is not a commonly used term in cryptography.
So favor "derivation" as terminology. Call a generator a key
derivation operation structure, since it behaves like other multipart
operation structures. Furthermore, the function names are not fully
consistent.

In this commit, I rename the functions to consistently have the prefix
"psa_key_derivation_". I used the following command:

    perl -i -pe '%t = (
        psa_crypto_generator_t => "psa_key_derivation_operation_t",
        psa_crypto_generator_init => "psa_key_derivation_init",
        psa_key_derivation_setup => "psa_key_derivation_setup",
        psa_key_derivation_input_key => "psa_key_derivation_input_key",
        psa_key_derivation_input_bytes => "psa_key_derivation_input_bytes",
        psa_key_agreement => "psa_key_derivation_key_agreement",
        psa_set_generator_capacity => "psa_key_derivation_set_capacity",
        psa_get_generator_capacity => "psa_key_derivation_get_capacity",
        psa_generator_read => "psa_key_derivation_output_bytes",
        psa_generate_derived_key => "psa_key_derivation_output_key",
        psa_generator_abort => "psa_key_derivation_abort",
        PSA_CRYPTO_GENERATOR_INIT => "PSA_KEY_DERIVATION_OPERATION_INIT",
        PSA_GENERATOR_UNBRIDLED_CAPACITY => "PSA_KEY_DERIVATION_UNLIMITED_CAPACITY",
        ); s/\b(@{[join("|", keys %t)]})\b/$t{$1}/ge' $(git ls-files)
2019-05-16 18:55:21 +02:00
Jaeden Amero
d35249e66f
Merge pull request #109 from gilles-peskine-arm/psa-key_attributes-set_persistent
Individual setters for persistent key attributes
2019-05-16 17:28:53 +01:00
Jaeden Amero
99e8d26a75
Merge pull request #104 from gilles-peskine-arm/psa-global_key_id
Make key ids global and define their range
2019-05-16 17:11:59 +01:00
Gilles Peskine
f1b7694768 Minor documentation improvements 2019-05-16 16:10:59 +02:00
Gilles Peskine
280948a32b Fix copypasta in the documentation of PSA_KEY_ID_xxx_{MIN,MAX} 2019-05-16 15:27:14 +02:00
Jaeden Amero
16ab39102e
Merge pull request #102 from gilles-peskine-arm/psa-aead_multipart-delay
Multipart AEAD buffer output sizes
2019-05-16 13:34:21 +01:00
Jaeden Amero
76be7f9c70
Merge pull request #108 from gilles-peskine-arm/psa-copy_key-policy
Add policy usage flag to copy a key
2019-05-16 12:08:13 +01:00
Jaeden Amero
826e326d2e
Merge pull request #107 from gilles-peskine-arm/psa-curve_size_macro
PSA: EC curve size macro
2019-05-16 11:59:41 +01:00
Gilles Peskine
6c9514427b New macro to get the bit size of an elliptic curve 2019-05-16 00:16:46 +02:00
Gilles Peskine
73676cbc50 Put handle parameter last: psa_import_key
In psa_import_key, change the order of parameters to pass
the pointer where the newly created handle will be stored last.
This is consistent with most other library functions that put inputs
before outputs.
2019-05-15 23:16:07 +02:00
Gilles Peskine
806051f17e Update an obsolete use of psa_import_key in documentation
psa_import_key now takes an attribute structure, not a type.
2019-05-15 23:15:49 +02:00
Gilles Peskine
98dd779eb5 Put handle parameter last: psa_generate_derived_key
In psa_generate_derived_key, change the order of parameters to pass
the pointer where the newly created handle will be stored last.
This is consistent with most other library functions that put inputs
before outputs.
2019-05-15 20:15:31 +02:00
Gilles Peskine
9de5eb0a2f Remove psa_make_key_persistent 2019-05-15 19:14:05 +02:00
Gilles Peskine
dc8219a10d Replace psa_make_key_persistent by id/lifetime setters
Use individual setters for the id and lifetime fields of an attribute
structure, like the other attributes.

This commit updates the specification and adds an implementation of
the new setters.
2019-05-15 19:14:05 +02:00
Gilles Peskine
80b39ae753 Remove obsolete use of key policy structure in API text 2019-05-15 19:14:05 +02:00
Gilles Peskine
f9fbc38e66 Declare key id 0 as invalid
In keeping with other integral types, declare 0 to be an invalid key
identifier.

Documented, implemented and tested.
2019-05-15 18:42:09 +02:00
Ron Eldor
c8b5f3f520 Documentation fixes
Rephrase documentation of the SAN to make it clearer.
2019-05-15 15:15:55 +03:00
Ron Eldor
51d3ab544f Add public API for tls_prf
Add a public API for key derivation, introducing an enum for `tls_prf`
type.
2019-05-15 13:53:02 +03:00
Ron Eldor
f5cc10d93b Add an extra key export function
Add an additional function `mbedtls_ssl_export_keys_ext_t()`
for exporting key, that adds additional information such as
the used `tls_prf` and the random bytes.
2019-05-15 13:38:39 +03:00
Ron Eldor
cc45cd177f Update SAN parsing documentation
1) Fix typo in `mbedtls_x509_parse_subject_alt_name()` documentation.
2) Add a not in `mbedtls_x509_parse_subject_alt_name()` documentation,
stating that the lifetime of the target structure is restricted
by the lifetime ofthe parsed certificate.
2019-05-15 10:20:09 +03:00
Gilles Peskine
d6a8f5f1b5 Improve description of PSA_KEY_USAGE_COPY
Be more clear about when EXPORT is also required.
2019-05-14 16:25:50 +02:00
Gilles Peskine
ac99e32b79 Documentation improvements 2019-05-14 16:11:07 +02:00
Gilles Peskine
36d477de44 Fix copypasta in PSA_AEAD_DECRYPT_OUTPUT_SIZE 2019-05-14 16:11:07 +02:00
Gilles Peskine
248010caa0 Fix calculation in PSA_AEAD_UPDATE_OUTPUT_SIZE 2019-05-14 16:11:07 +02:00
Gilles Peskine
8e0206aa26 New usage flag PSA_KEY_USAGE_COPY
Document the new flag and allow its use.
2019-05-14 14:24:28 +02:00
Gilles Peskine
4318dfc8ec psa_export_key, psa_export_public_key: document the EXPORT flag 2019-05-14 14:23:32 +02:00
Ron Eldor
f05f594acb change the type of hardware_module_name member
Change the type of `hardware_module_name` struct from
`mbedtls_x509_name` to a unique struct, to distinguish it from the
named data type.
2019-05-13 19:23:08 +03:00
Ron Eldor
890819a597 Change mbedtls_x509_subject_alternative_name
Make `mbedtls_x509_subject_alternative_name` to be a single item
rather than a list. Adapt the subject alternative name parsing function,
to receive a signle `mbedtls_x509_buf` item from the subject_alt_names
sequence of the certificate.
2019-05-13 19:23:07 +03:00
Ron Eldor
78c3040347 Rephrase x509_crt extension member description
Rephrase doxygen comments for subject alternative name
and certificate policies.
2019-05-13 15:49:53 +03:00
Jaeden Amero
1fe90fab30
Merge pull request #101 from gilles-peskine-arm/psa-key_attributes-verify_attributes
Check unused attributes in import and copy
2019-05-13 11:48:40 +01:00
Krzysztof Stachowiak
abdf1c608e Document the default value for the maximum fragment length 2019-05-13 12:45:12 +02:00
k-stachowiak
6d72212d45 Improve clarity of mbedtls_ssl_conf_max_frag_len documentation 2019-05-13 12:45:12 +02:00
k-stachowiak
db850c63b2 Reword ssl_conf_max_frag_len documentation 2019-05-13 12:45:12 +02:00
k-stachowiak
61aa74fb3d Fix typos and miswording in the mbedtls_ssl_conf_max_frag_len documentation comment 2019-05-13 12:45:12 +02:00
k-stachowiak
eb1bb3d2d0 Reword ssl_conf_max_frag_len documentation to clarify its necessity 2019-05-13 12:45:12 +02:00
Janos Follath
11b41eb12b Fix typos in x509_crt.h 2019-05-08 15:30:33 +01:00
Janos Follath
5091bec3ea Fix doxygen for new x509 structures
The documentation for some new structures and members was only a C style
comment and wasn't picked up by doxygen. This commit adds the missing
asterisks.
2019-05-08 15:23:08 +01:00
Ron Eldor
3c4734a2a5 Add Wisun Fan device certificate
Add certificate with Wisun fan device extended key usage,
support parsing it and add tests.
2019-05-07 17:06:47 +03:00
Ron Eldor
74d9acc144 Add support for certificate policies extension
Add support for certificate policies, as defined in rfc 5280.
Currently support only `anyPolicy` policy.
2019-05-07 17:05:45 +03:00
Ron Eldor
b2dc3fa72e Suppport otherName of type hardware module name
Add support of parsing of subject alternative name, of type otherName.
Currently supports only hardware module name, as defined in rfc 4108.
2019-05-07 17:04:57 +03:00
Gilles Peskine
4a231b8d3b Break up key identifiers into user, vendor and reserved ranges
Define a range of key identifiers for use by the application
(0..2^30-1), a range for use by implementations (2^30..2^31), and a
range that is reserved for future use (2^31..2^32-1).
2019-05-06 18:56:14 +02:00
Gilles Peskine
225010fdf7 Remove lifetime parameter from psa_open_key
Change the scope of key identifiers to be global, rather than
per lifetime. As a result, you now need to specify the lifetime of a
key only when creating it.
2019-05-06 18:52:22 +02:00
Jack Lloyd
5d9c9636fa Add support for RSA PKCSv1.5 signatures using RIPEMD-160 2019-05-06 12:15:17 -04:00
Gilles Peskine
f02aec90dc Allow AEAD update output to be delayed
Do not require finish() to have empty output for any algorithm. Some
hardware does not support immediate stream processing.
2019-05-06 15:59:44 +02:00