Commit graph

91 commits

Author SHA1 Message Date
Dave Rodgman 85a88133aa Use fewer bits for block_size
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-06-24 13:37:28 +01:00
Dave Rodgman 6dd757a8ba Fix use of sizeof without brackets
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-02-02 12:40:50 +00:00
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
Manuel Pégourié-Gonnard a9ac61203b
Merge pull request #6666 from daverodgman/fast_unaligned
Fast unaligned memory access macros
2022-12-12 12:18:17 +01:00
Tom Cosgrove 1797b05602 Fix typos prior to release
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
2022-12-04 17:19:59 +00:00
Dave Rodgman 0d3b55bca8 Use mbedtls_xor in ccm
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2022-11-22 17:32:43 +00:00
bootstrap-prime 6dbbf44d78
Fix typos in documentation and constants with typo finding tool
Signed-off-by: bootstrap-prime <bootstrap.prime@gmail.com>
2022-05-18 14:15:33 -04:00
Mateusz Starzyk bb2ced33dd Ignore plaintext length for CCM*-no-tag.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-10-21 11:33:37 +02:00
Mateusz Starzyk 5d7f6b1fd5 Remove rendundat ctx->add_len check.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-09-06 12:09:34 +02:00
Mateusz Starzyk 64f0b5f454 Return BAD_INPUT error for CCM context's erroneous state
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-09-02 11:50:54 +02:00
Mateusz Starzyk 7251eda6ff Replace BAD_SEQUENCE error with BAD_INPUT
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-09-01 13:26:44 +02:00
Mateusz Starzyk cbefb6ba4d Merge branch 'development' into ccm_chunked
Conflicts:
	library/ccm.c

Conflict resolved by re-applying the MBEDTLS_BYTE_0 macro.
Conflict resolved by ignoring the MBEDTLS_PUT_UINT16_BE macro
used in development branch on the 'b' buffer, because the 'b'
buffer is removed in current branch.
2021-08-24 15:14:23 +02:00
Joe Subbiani d0687856af Improve documentation and add more uses of MBEDTLS_PUT
minor changes, such as improving the documentation for the byte reading
macros, and using MBEDTLS_PUT_UINT16_xy in place of byte reading
macro combinations

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
2021-08-19 09:57:42 +01:00
Joe Subbiani 2194dc477a Replace MBEDTLS_CHAR_x with MBEDTLS_BYTE_x
The CHAR macros casted to an unsigned char which in this project
is garunteed to be 8 bits - the same as uint8_t (which BYTE casts
to) therefore, instances of CHAR have been swapped with BYTE and
the number of macros have been cut down

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
2021-08-19 09:56:47 +01:00
Joe Subbiani cd84d76e9b Add Character byte reading macros
These cast to an unsigned char rather than a uint8_t
like with MBEDTLS_BYTE_x
These save alot of space and will improve maintence by
replacing the appropriate code with MBEDTLS_CHAR_x

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
2021-08-19 09:55:41 +01:00
Mateusz Starzyk 2f1754916c Improve comment on local_output.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 14:00:14 +02:00
Mateusz Starzyk b73c3ec1bc Restore MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED as default ret.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 14:00:14 +02:00
Mateusz Starzyk 62d22f9782 Use additional state in CCM to track auth data input.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 14:00:14 +02:00
Mateusz Starzyk 4f2dd8aada Fix errors returned by CCM functions.
Add new error code for calling functions in wrong order.

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 14:00:14 +02:00
Mateusz Starzyk f337850738 Use const size buffer for local output in CCM decryption.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:59:36 +02:00
Mateusz Starzyk c562788068 Fix local buffer allocation conditions.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:58:39 +02:00
Mateusz Starzyk c8bdf36a72 Validate tag pointer in ccm function.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:58:39 +02:00
Mateusz Starzyk 1bda9451ef Factor out common code from ccm decrypt functions.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:58:39 +02:00
Mateusz Starzyk eb395c00c9 Move 'Authenticated decryption' comment.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:58:39 +02:00
Mateusz Starzyk 22f7a35ca4 Do not use output buffer for internal XOR during decryption.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:58:39 +02:00
Mateusz Starzyk 36d3b89c84 Verify input data lengths.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 2d5652acee Move ccm error state handling.
Remove error clearing from ccm_starts() and ccm_set_lengths().
Add error check in ccm_update_ad(), ccm_update() and ccm_finish().

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 5d97601e81 Remove ccm input validation.
VALIDATE and VALIDATE_RET macros are obsolete.

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk ca9dc8d1d7 Rename ccm_calculate_first_block function.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk c52220d775 Clear temporary buffer after block crypt operation.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk a9cbdfbb34 Replace ccm status flags with bitshifts.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 663055f784 Remove UPDATE_CBC macro and working b buffer.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 20bac2fbe4 Fix chunked ccm update.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 05e92d67bb Fix crypt mode configuration. Validate parameters in chunked input functions.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 6a15bcf61b Add support for chunked plaintext/cyphertext input.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 2ad7d8e1ff Replace CCM_CRYPT macro with a more versatile static function.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 33392450b7 Add chunked auth data support
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk eb2ca96d69 Store set lenghts in ccm context.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 88c4d624f8 Clear context state if previous operation failed.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 793692cbcb Split ccm_auth function.
Move logic to ccm_starts, ccm_set_lengths, ccm_update_ad,
ccm_update and ccm_finish
Use separate variable to track context state.
Encode first block only if both mbedtls_ccm_starts() and
mbedtls_ccm_set_lengths() were called.

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk 89d469cdb4 Move working variables to ccm context structure
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Fredrik Strupe 5e940c6068 Fix additional data length field check for CCM
The CCM specification (NIST SP 800-38C) mandates that the formatting of
the additional data length l(a) changes when it is greater _or equal_ to
2^16 - 2^8 (>= 0xFF00). Since such lengths are not supported in mbed TLS,
the operation should fail in such cases.

This commit fixes an off-by-one error which allowed encryption/decryption
to be executed when l(a) was equal to 0xFF00, resulting in an
incorrect/non-standard length format being used.

Fixes #3719.

Signed-off-by: Fredrik Strupe <fredrik.strupe@silabs.com>
2020-10-08 12:09:44 +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
Jaeden Amero 3956a847e6 Merge remote-tracking branch 'origin/pr/2092' into development
* origin/pr/2092:
  Add more missing parentheses around macro parameters
  Add further missing brackets around macro parameters
  Adapt ChangeLog
  Improve macro hygiene
2019-04-24 11:17:21 +01:00
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
Andrzej Kurek ee3c435063 Whitespace fix for ccm, gcm, and pkcs5
Fix whitespace mistakes  in ccm, gcm, and pkcs5.
2019-01-10 03:17:34 -05:00
Michał Janiszewski c79e92b802 Rename remaining test data 2019-01-10 03:14:00 -05:00
Michał Janiszewski 9aeea93cc3 Rename globals to avoid shadowing by various function arguments
It's easier and more telling to rename the globals used only for test,
rather than rename all the shadowing function arguments.
2019-01-10 03:14:00 -05:00