Commit graph

33 commits

Author SHA1 Message Date
Teppo Järvelin 91d7938761 Changed every memcpy to SCA equivalent mbedtls_platform_memcpy
This makes physical attacks more difficult.
2019-10-30 14:07:04 +02:00
Simon Butcher e2bf54d3d1 Merge remote-tracking branch 'public/pr/2877' into baremetal 2019-10-23 14:53:29 +01:00
Manuel Pégourié-Gonnard 7a346b866c Replace memset() with mbedtls_platform_memset()
Steps:

1. sed -i 's/\bmemset(\([^)]\)/mbedtls_platform_memset(\1/g' library/*.c tinycrypt/*.c include/mbedtls/*.h scripts/data_files/*.fmt

2. Manually edit library/platform_util.c to revert to memset() in the
implementations of mbedtls_platform_memset() and mbedtls_platform_memcpy()

3. egrep -n '\<memset\>' library/*.c include/mbedtls/*.h tinycrypt/*.c
The remaining occurrences are in three categories:
    a. From point 2 above.
    b. In comments.
    c. In the initialisation of memset_func, to be changed in a future commit.
2019-10-22 10:03:07 +02:00
Teppo Järvelin 61f412eb58 Changed every memcmp to SCA equivalent mbedtls_platform_memcmp
This makes physical attacks more difficult.
Selftest memcmp functions were not changed.
2019-10-03 13:14:33 +03:00
Arto Kinnunen 3d7439e90f Review corrections 6
-Explicitly discard unnecessary return values of
 mbedtls_platform_put_uintXX_be by adding void casting.
2019-09-10 11:30:40 +03:00
Arto Kinnunen a3fa06e62a Review corrections 3
-Remove additional trace cause by rebase
-Update remaining 16/24/32-bit values to use functions, this uses
 additional 36 bytes.
2019-09-09 17:21:18 +03:00
Arto Kinnunen 0b62ce8ed4 Use function for 16/24/32-bit BE conversion
Use functions for 16/24/32-bit big endian conversion to save ROM.
2019-09-09 17:21:18 +03:00
Manuel Pégourié-Gonnard 91f4ca2ed1 Move session save/load function to ssl_tls.c
This finishes making these functions public. Next step is to get them tested,
but there's currently a blocker for that, see next commit (and the commit
after it for tests).
2019-06-03 09:51:08 +02:00
Hanno Becker 6934e9b288 Indentation fix 2018-10-25 16:07:16 +01:00
Hanno Becker 137015c1b1 Fix unsafe bounds checks in ssl_load_session()
Fixes #659 reported by Guido Vranken.
2018-10-25 16:07:08 +01:00
Hanno Becker 9543373668 Use brackets around shift operations
Use `( x >> y ) & z` instead of `x >> y & z`. Both are equivalent
by operator precedence, but the former is more readable and the
commonly used idiom in the library.
2018-10-24 13:31:49 +01:00
Hanno Becker aa71500173 Fix bug in SSL ticket implementation removing keys of age < 1s
Fixes #1968.
2018-08-21 17:48:52 +01:00
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
Simon Butcher b5b6af2663 Puts platform time abstraction into its own header
Separates platform time abstraction into it's own header from the
general platform abstraction as both depend on different build options.
(MBEDTLS_PLATFORM_C vs MBEDTLS_HAVE_TIME)
2016-07-13 14:46:18 +01:00
SimonB d5800b7761 Abstracts away time()/stdlib.h into platform
Substitutes time() into a configurable platform interface to allow it to be
easily substituted.
2016-04-26 14:49:59 +01:00
Manuel Pégourié-Gonnard 37ff14062e Change main license to Apache 2.0 2015-09-04 14:21:07 +02:00
Manuel Pégourié-Gonnard 6fb8187279 Update date in copyright line 2015-07-28 17:11:58 +02:00
Manuel Pégourié-Gonnard 097c7bb05b Rename relevant global symbols from size to bitlen
Just applying rename.pl with this file:

mbedtls_cipher_get_key_size mbedtls_cipher_get_key_bitlen
mbedtls_pk_get_size mbedtls_pk_get_bitlen
MBEDTLS_BLOWFISH_MIN_KEY MBEDTLS_BLOWFISH_MIN_KEY_BITS
MBEDTLS_BLOWFISH_MAX_KEY MBEDTLS_BLOWFISH_MAX_KEY_BITS
2015-06-18 16:43:38 +02:00
Manuel Pégourié-Gonnard 898e0aa210 Rename key_length in cipher_info 2015-06-18 15:31:10 +02:00
Manuel Pégourié-Gonnard 6a8ca33fa5 Rename ERR_xxx_MALLOC_FAILED to ..._ALLOC_FAILED 2015-05-28 16:25:05 +02:00
Manuel Pégourié-Gonnard 7551cb9ee9 Replace malloc with calloc
- platform layer currently broken (not adapted yet)
- memmory_buffer_alloc too
2015-05-26 16:04:06 +02:00
Manuel Pégourié-Gonnard 1e9c4db524 Implement key rotation 2015-05-25 19:42:14 +02:00
Manuel Pégourié-Gonnard 887674a33b Internal changes in preparation for key rotation
- two sets of keys
- separate function for key generation/update
2015-05-25 12:19:00 +02:00
Manuel Pégourié-Gonnard a0adc1bbe4 Make cipher used in ssl tickets configurable 2015-05-25 10:35:16 +02:00
Manuel Pégourié-Gonnard 1041a39338 Use AES-GCM-256 for session ticket protection 2015-05-20 20:19:42 +02:00
Manuel Pégourié-Gonnard 8eff512274 Fix possible signedness issue in time comparison 2015-05-20 11:41:36 +02:00
Manuel Pégourié-Gonnard 0849a0a910 Make ssl ticket functions thread-safe 2015-05-20 11:34:54 +02:00
Manuel Pégourié-Gonnard d59675d92c Move to callback for session tickets 2015-05-20 11:14:57 +02:00
Manuel Pégourié-Gonnard b0394bebdb Further adapt prototypes of ticket functions
Moving everything in ticket_keys structure, that will soon become
ticket_context.
2015-05-20 11:14:57 +02:00
Manuel Pégourié-Gonnard 69f17280d3 Adapt prototypes of ticket handling functions
This is an intermediate step. The ssl_config argument will be replace by a
ticket context next.
2015-05-20 11:14:57 +02:00
Manuel Pégourié-Gonnard a4a473516e Rename & move ticket functions to ticket module 2015-05-20 11:14:57 +02:00
Manuel Pégourié-Gonnard fd6d8978f9 Add new submodule ssl_ticket 2015-05-20 11:14:57 +02:00