Commit graph

77 commits

Author SHA1 Message Date
Dave Rodgman
16799db69a update headers
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-11-02 19:47:20 +00:00
Dave Rodgman
aafd1e0924 Ensure all md_<hash>_finish functions perform zeroization
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-09-11 12:59:36 +01:00
Gilles Peskine
449bd8303e Switch to the new code style
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2023-01-11 14:50:10 +01:00
Gilles Peskine
a7aa80c058 Include platform.h unconditionally: second automatic part
Some source files included platform.h in a nested conditional. The previous
commit "Include platform.h unconditionally: automatic part" only removed
the outer conditional. This commit removes the inner conditional.

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

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

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-09-15 20:34:10 +02:00
Gilles Peskine
945b23c46f Include platform.h unconditionally: automatic part
We used to include platform.h only when MBEDTLS_PLATFORM_C was enabled, and
to define ad hoc replacements for mbedtls_xxx functions on a case-by-case
basis when MBEDTLS_PLATFORM_C was disabled. The only reason for this
complication was to allow building individual source modules without copying
platform.h. This is not something we support or recommend anymore, so get
rid of the complication: include platform.h unconditionally.

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

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

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

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-09-15 20:33:07 +02:00
Joe Subbiani
6a50631497 GET macros use a target variable
The GET macros used to write to a macro parameter, but now
they can be used to assign a value to the desired variable
rather than pass it in as an argument and have it modified
in the macro function.

Due to this MBEDTLS_BYTES_TO_U32_LE is the same as
MBEDTLS_GET_UINT32_LE and was there for replaced in the
appropriate files and removed from common.h

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
2021-08-19 09:31:55 +01:00
Joe Subbiani
5ecac217f0 Prefixed macros with MBEDTLS
As per tests/scripts/check-names.sh, macros in
library/ header files should be prefixed with
MBEDTLS_
The macro functions in common.h where also indented
to comply with the same test

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
2021-08-19 09:31:54 +01:00
Joe Subbiani
54c6134ff7 Move UINT32_LE macros to common.h
32-bit integer manipulation macros (little edian):
GET_UINT32_LE and PUT_UINT32_LE appear in several
files in library/.
Removes duplicate code and save vertical
space the macro has been moved to common.h.
Improves maintainability.

Also provided brief comment in common.h for
BYTES_TO_U32_LE. comment/documentation will
probably need to be edited further for all
recent additions to library/common.h

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
2021-08-19 09:31:53 +01:00
TRodziewicz
26371e4793 Rename the _ret() functions
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-08 16:45:41 +02:00
TRodziewicz
136b3989cb Remove deprecated things from hashing modules
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-04-15 12:34:09 +02:00
Manuel Pégourié-Gonnard
489c058b52 Merge branch 'development' into development-restricted
* development: (488 commits)
  Fix removal of deprecated PSA constants
  Use GitHub-compatible table formatting
  Remove psa header files in uninstall part
  Change function casting in `ssl_calc_finished_tls_sha384`
  Fix GCC warning in `ssl_calc_finished_tls_sha384`
  Add changelog entry file to `ChangeLog.d`
  Fix GCC warning in `ssl_calc_finished_tls_sha384`
  Fix GCC warning about `test_snprintf`
  Fix mismatched function parameters (prototype/definition)
  Fix build failure on gcc-11
  Copyediting
  Clarifications around key import
  Fix copypasta
  A variable is unused in some configurations
  Rename test_driver_keygen to test_driver_key_management
  Move "internal use" sentence attached to the wrong function
  Added changelog
  Plug in the entry point for public key export through driver
  tests: psa: Reset key attributes where needed
  Improve/fix documentation
  ...
2020-12-03 09:59:42 +01:00
Gilles Peskine
bbc6032444
Merge pull request #731 from gabor-mezei-arm/692_missing_zeroizations_of_sensitive_data
Missing zeroizations of sensitive data
2020-09-18 16:20:13 +02:00
gabor-mezei-arm
4cb56f83cb
Put local variables and buffers in a struct
This reduces the impact of the code size increase due to the addition
of calls to mbedtls_platform_zeroize.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2020-08-25 19:13:59 +02:00
gabor-mezei-arm
d1c98fcf5e
Zeroize internal buffers and variables in MD hashes
Zeroising of local buffers and variables which are used for calculations in
mbedtls_internal_md*_process() and mbedtls_internal_ripemd160_process()
functions to erase sensitive data from memory.
Checked all function for possible missing zeroisation in MD.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2020-08-25 19:13:59 +02:00
Guido Vranken
962e4ee4a6 Use single-line string literals.
Signed-off-by: Guido Vranken <guidovranken@gmail.com>
2020-08-21 21:08:56 +02:00
Guido Vranken
027fe00d2e Prevent triggering Clang 12 -Wstring-concatenation warning
Wrap multi-line string literals in parentheses
to prevent a Clang 12 -Wstring-concatenation warning
(activated by -Wall), which caused the build to fail.

Fixes https://github.com/ARMmbed/mbedtls/issues/3586

Signed-off-by: Guido Vranken <guidovranken@gmail.com>
2020-08-21 10:05:52 +02:00
Bence Szépkúti
1e14827beb Update copyright notices to use Linux Foundation guidance
As a result, the copyright of contributors other than Arm is now
acknowledged, and the years of publishing are no longer tracked in the
source files.

Also remove the now-redundant lines declaring that the files are part of
MbedTLS.

This commit was generated using the following script:

# ========================
#!/bin/sh

# Find files
find '(' -path './.git' -o -path './3rdparty' ')' -prune -o -type f -print | xargs sed -bi '

# Replace copyright attribution line
s/Copyright.*Arm.*/Copyright The Mbed TLS Contributors/I

# Remove redundant declaration and the preceding line
$!N
/This file is part of Mbed TLS/Id
P
D
'
# ========================

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-08-19 10:35:41 +02:00
Gilles Peskine
db09ef6d22 Include common.h instead of config.h in library source files
In library source files, include "common.h", which takes care of
including "mbedtls/config.h" (or the alternative MBEDTLS_CONFIG_FILE)
and other things that are used throughout the library.

FROM=$'#if !defined(MBEDTLS_CONFIG_FILE)\n#include "mbedtls/config.h"\n#else\n#include MBEDTLS_CONFIG_FILE\n#endif' perl -i -0777 -pe 's~\Q$ENV{FROM}~#include "common.h"~' library/*.c 3rdparty/*/library/*.c scripts/data_files/error.fmt scripts/data_files/version_features.fmt

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-07-02 11:26:57 +02:00
Janos Follath
24eed8d2d2 Initialise return values to an error
Initialising the return values to and error is best practice and makes
the library more robust.
2019-12-03 16:07:18 +00:00
Hanno Becker
818bac55ef Add further missing brackets around macro parameters 2019-02-19 17:59:57 +00:00
Hanno Becker
1eeca41472 Improve macro hygiene
This commit improves hygiene and formatting of macro definitions
throughout the library. Specifically:
- It adds brackets around parameters to avoid unintended
  interpretation of arguments, e.g. due to operator precedence.
- It adds uses of the `do { ... } while( 0 )` idiom for macros that
  can be used as commands.
2019-02-19 17:59:00 +00:00
Manuel Pégourié-Gonnard
1cc1fb0599 Fix Lucky 13 cache attack on MD/SHA padding
The basis for the Lucky 13 family of attacks is for an attacker to be able to
distinguish between (long) valid TLS-CBC padding and invalid TLS-CBC padding.
Since our code sets padlen = 0 for invalid padding, the length of the input to
the HMAC function gives information about that.

Information about this length (modulo the MD/SHA block size) can be deduced
from how much MD/SHA padding (this is distinct from TLS-CBC padding) is used.
If MD/SHA padding is read from a (static) buffer, a local attacker could get
information about how much is used via a cache attack targeting that buffer.

Let's get rid of this buffer. Now the only buffer used is the internal MD/SHA
one, which is always read fully by the process() function.
2018-07-05 10:47:00 +02:00
Andres Amaya Garcia
1f6301b3c8 Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
Andres Amaya Garcia
e32df087fb Remove individual copies of mbedtls_zeroize()
This commit removes all the static occurrencies of the function
mbedtls_zeroize() in each of the individual .c modules. Instead the
function has been moved to utils.h that is included in each of the
modules.
2018-04-17 09:19:05 -05:00
Jaeden Amero
041039f81e MD: Make deprecated functions not inline
In 2.7.0, we replaced a number of MD functions with deprecated inline
versions. This causes ABI compatibility issues, as the functions are no
longer guaranteed to be callable when built into a shared library.
Instead, deprecate the functions without also inlining them, to help
maintain ABI backwards compatibility.
2018-02-22 10:24:30 +00:00
Gilles Peskine
9e4f77c606 New MD API: rename functions from _ext to _ret
The _ext suffix suggests "new arguments", but the new functions have
the same arguments. Use _ret instead, to convey that the difference is
that the new functions return a value.
2018-01-22 11:54:42 +01:00
Andres Amaya Garcia
2d0aa8be97 Fix MD selftest to use correct type and expose ret 2017-07-21 14:57:26 +01:00
Andres Amaya Garcia
0963e6cfac Fix possible memory leak in <MD>_ext() 2017-07-20 14:41:10 +01:00
Andres Amaya Garcia
cccfe08530 Rename md process functions with _internal_ 2017-06-28 12:52:16 +01:00
Andres Amaya Garcia
2cfd7a982c Add int return values to MD5 function calls
The following function calls are being deprecated to introduce int
return values.
    * mbedtls_md5()
    * mbedtls_md5_starts()
    * mbedtls_md5_update()
    * mbedtls_md5_finish()
    * mbedtls_md5_process()
The return codes can be used to return error values. This is important
when using hardware accelerators.
2017-06-28 12:52:16 +01:00
Manuel Pégourié-Gonnard
37ff14062e Change main license to Apache 2.0 2015-09-04 14:21:07 +02:00
Manuel Pégourié-Gonnard
8b2641d36f Fix warning with MD/SHA ALT implementation
fixes #239
2015-08-31 10:34:26 +02:00
Manuel Pégourié-Gonnard
6fb8187279 Update date in copyright line 2015-07-28 17:11:58 +02:00
Manuel Pégourié-Gonnard
16d412f465 Add md/shaXXX_clone() API
Will be used in the SSL/TLS modules
2015-07-06 15:48:34 +02:00
Manuel Pégourié-Gonnard
41b9c2b418 Remove individual mdX_file() and shaX_file() 2015-05-28 17:28:38 +02:00
Manuel Pégourié-Gonnard
2cf5a7c98e The Great Renaming
A simple execution of tmp/invoke-rename.pl
2015-04-08 13:25:31 +02:00
Manuel Pégourié-Gonnard
427b672551 Add XXX_PROCESS_ALT mecchanism 2015-03-31 18:32:50 +02:00
Manuel Pégourié-Gonnard
4da88c50c1 Remove specific xxx_hmac functions 2015-03-25 21:55:56 +01:00
Manuel Pégourié-Gonnard
57a26da593 Merge branch 'mbedtls-1.3' into development
* mbedtls-1.3:
  Use link-time garbage collection in memory.sh
  scripts/memory.sh only work on Linux
  Add missing 'const' on selftest data
  Use only headers for doxygen (no doc in C files)
  Add missing extern "C" guard in aesni.h
  Fix compile error with renego disabled
  Remove slow PKCS5 test
  Stop checking key-cert match systematically
  Make tests/*.sh runnable from anywhere
  Update visual C files
2015-03-11 10:30:21 +00:00
Manuel Pégourié-Gonnard
28122e4329 Add missing 'const' on selftest data 2015-03-11 09:13:42 +00:00
Manuel Pégourié-Gonnard
7f8099773e Rename include directory to mbedtls 2015-03-10 11:23:56 +00:00
Manuel Pégourié-Gonnard
fe44643b0e Rename website and repository 2015-03-06 13:17:10 +00:00
Manuel Pégourié-Gonnard
d48bf6892c Write literal byte more clearly 2015-02-16 09:13:40 +00:00
Rich Evans
00ab47026b cleanup library and some basic tests. Includes, add guards to includes 2015-02-10 11:28:46 +00:00
Manuel Pégourié-Gonnard
860b51642d Fix url again 2015-01-28 17:12:07 +00:00
Manuel Pégourié-Gonnard
ceedb8292e Fix possible portability issue
The & 0xFF should not be necessary on platforms with 8-bit chars, but one user
reported having problems with his compiler on such a platform.
2015-01-28 15:28:30 +01:00
Manuel Pégourié-Gonnard
085ab040aa Fix website url to use https. 2015-01-23 11:06:27 +00:00
Manuel Pégourié-Gonnard
9698f5852c Remove maintainer line. 2015-01-23 10:59:00 +00:00
Manuel Pégourié-Gonnard
19f6b5dfaa Remove redundant "all rights reserved" 2015-01-23 10:54:00 +00:00
Manuel Pégourié-Gonnard
a658a4051b Update copyright 2015-01-23 09:55:24 +00:00