Commit graph

161 commits

Author SHA1 Message Date
Hanno Becker 177d3cf7bb Rename and document new configuration option for packing AES tables
This commit renames the new AES table packing option introduced in the
previous MBEDTLS_AES_PACK_TABLES and documents its use and memory vs.
speed tradeoff. It also enhances the documentation of the other
AES-related option MBEDTLS_AES_ROM_TABLES.
2017-06-09 16:57:44 +01:00
Jussi Kivilinna 2fd1bb8f02 Add option to use smaller AES tables (table sizes reduced by 6144 bytes)
This patch adds MBEDTLS_AES_SMALL_TABLES option to reduce number of AES
look-up tables and thus save 6 KiB of memory. Enabling this option
cause performance hit MBEDTLS_AES_SMALL_TABLES of ~7% on ARM and ~15%
on x86-64.

Benchmark on Cortex-A7 (armhf):

Before:
  AES-CBC-128              :      14394 Kb/s,          0 cycles/byte
  AES-CBC-192              :      12442 Kb/s,          0 cycles/byte
  AES-CBC-256              :      10958 Kb/s,          0 cycles/byte

After:
  AES-CBC-128              :      13342 Kb/s,          0 cycles/byte
  AES-CBC-192              :      11469 Kb/s,          0 cycles/byte
  AES-CBC-256              :      10058 Kb/s,          0 cycles/byte

Benchmark on Intel Core i5-4570 (x86_64, 3.2 Ghz, no turbo):

Before:
  AES-CBC-128              :     215759 Kb/s,         14 cycles/byte
  AES-CBC-192              :     190884 Kb/s,         16 cycles/byte
  AES-CBC-256              :     171536 Kb/s,         18 cycles/byte

After:
  AES-CBC-128              :     185108 Kb/s,         16 cycles/byte
  AES-CBC-192              :     162839 Kb/s,         19 cycles/byte
  AES-CBC-256              :     144700 Kb/s,         21 cycles/byte
2017-06-07 15:29:31 +01:00
Andres AG f5bf7189d3 Change return type of AES decrypt and encrypt
This patch modifies the following 2 functions in the AES module to
change the return type from void to int:
    * mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
    * mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
This change is necessary to allow users of MBEDTLS_AES_ALT,
MBEDTLS_AES_DECRYPT_ALT and MBEDTLS_AES_ENCRYPT_ALT to return an error
code when replacing the default with their own implementation, e.g.
a hardware crypto accelerator.
2017-05-16 10:22:37 +01:00
Jussi Kivilinna 4b541bec0f Fix unused variable in AES selftest when CBC and CFB disabled (#393)
This commit fixes following warning:

> CC:  aes.c
> aes.c: In function 'mbedtls_aes_self_test':
> aes.c:1225:19: error: unused variable 'iv' [-Werror=unused-variable]
>      unsigned char iv[16];
>                    ^
> cc1: all warnings being treated as errors
2016-06-22 16:48:16 +01:00
Simon Butcher 88ffc089bc Adds casts to zeroize functions to allow building as C++ 2016-05-23 14:29:32 +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 b8186a5e54 Rename len to bitlen in function parameters
Clarify a few comments too.
2015-06-18 14:58:58 +02:00
Manuel Pégourié-Gonnard c730ed3f2d Rename boolean functions to be clearer 2015-06-02 10:38:50 +01:00
Manuel Pégourié-Gonnard 31993f271d Add per-function override for AES 2015-05-12 15:41:08 +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 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
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
Manuel Pégourié-Gonnard 967a2a5f8c Change name to mbed TLS in the copyright notice 2015-01-22 14:28:16 +00:00
Paul Bakker c7ea99af4f Add _init() and _free() for cipher modules 2014-07-09 10:19:22 +02:00
Paul Bakker 66d5d076f7 Fix formatting in various code to match spacing from coding style 2014-06-17 17:06:47 +02:00
Paul Bakker 3461772559 Introduce polarssl_zeroize() instead of memset() for zeroization 2014-06-14 16:46:03 +02:00
Manuel Pégourié-Gonnard afd5a08e33 Minor tune-up in aes code
un-duplicate a check, and remove useless default case, mainly so that these
lines don't appear as uncovered
2014-06-12 21:15:55 +02:00
Paul Bakker b9e4e2c97a Fix formatting: fix some 'easy' > 80 length lines 2014-05-01 14:18:25 +02:00
Paul Bakker 9af723cee7 Fix formatting: remove trailing spaces, #endif with comments (> 10 lines) 2014-05-01 13:03:14 +02:00
Manuel Pégourié-Gonnard cef4ad2509 Adapt sources to configurable config.h name 2014-04-30 16:40:20 +02:00
Manuel Pégourié-Gonnard 1ec220b002 Add missing #ifdefs in aes.h 2014-03-13 19:25:06 +01:00
Paul Bakker 7dc4c44267 Library files moved to use platform layer 2014-02-06 13:20:16 +01:00
Paul Bakker 556efba51c Added AES CFB8 mode 2014-01-24 15:38:12 +01:00
Paul Bakker 0d0de92156 Only specify done label in aes.c when AES-NI is possible 2013-12-30 15:29:04 +01:00
Manuel Pégourié-Gonnard bfa3c9a85f Remove temporary code 2013-12-30 13:53:58 +01:00
Manuel Pégourié-Gonnard 47a3536a31 Add AES-NI key expansion for 128 bits 2013-12-29 13:28:59 +01:00
Manuel Pégourié-Gonnard 01e31bbffb Add support for key inversion using AES-NI 2013-12-28 16:22:08 +01:00
Manuel Pégourié-Gonnard 8eaf20b18d Allow detection of CLMUL 2013-12-26 15:51:13 +01:00
Manuel Pégourié-Gonnard 5b685653ef Add aesni_crypt_ecb() and use it 2013-12-25 13:03:26 +01:00
Manuel Pégourié-Gonnard 92cb1d3a91 Make CBC an option, step 3: individual ciphers 2013-09-13 17:25:43 +02:00
Paul Bakker 90995b5ce3 Added mechanism to provide alternative cipher / hash implementations
All symmetric cipher algorithms and hash algorithms now include support
for a POLARSSL_XXX_ALT flag that prevents the definition of the
algorithm context structure and all 'core' functions.
(cherry picked from commit 4087c47043)
2013-06-25 15:06:51 +02:00
Paul Bakker 5c2364c2ba - Moved from unsigned long to uint32_t throughout code 2012-10-01 14:41:15 +00:00
Paul Bakker 0e19e9ff1c - Minor define change to prevent warning 2012-10-01 11:02:48 +00:00
Paul Bakker 67820bd38e - Only include padlock header when POLARSSL_PADLOCK_C is defined 2012-06-04 12:47:23 +00:00
Paul Bakker 369e14bbf1 - Small code rewrite 2012-04-18 14:16:09 +00:00
Paul Bakker 048d04ef4b - AES code only check for Padlock once 2012-02-12 17:31:04 +00:00
Paul Bakker 27fdf46d16 - Removed deprecated casts to int for now unsigned values 2011-06-09 13:55:13 +00:00
Paul Bakker 23986e5d5d - Major type rewrite of int to size_t for most variables and arguments used for buffer lengths and loops 2011-04-24 08:57:21 +00:00
Paul Bakker e91d01e144 - Fixed typo 2011-04-19 15:55:50 +00:00
Paul Bakker b6ecaf5276 - Added additional (configurable) cipher block modes. AES-CTR, Camellia-CTR, XTEA-CBC 2011-04-19 14:29:23 +00:00
Paul Bakker b96f154e51 - Fixed copyright message 2010-07-18 20:36:00 +00:00
Paul Bakker 84f12b76fc - Updated Copyright to correct entity 2010-07-18 10:13:04 +00:00
Paul Bakker fc8c4360b8 - Updated copyright line to 2010 2010-03-21 17:37:16 +00:00
Paul Bakker 1f3c39c194 - Removed copyright line for Christophe Devine for clarity 2010-03-21 17:30:05 +00:00
Paul Bakker f3ccc68100 - Fixed cipher interface for encrypt/decrypt functions 2010-03-18 21:21:02 +00:00
Paul Bakker ff60ee6c2a - Added const-correctness to main codebase 2010-03-16 21:09:09 +00:00
Paul Bakker 77b385e91a - Updated copyright messages on all relevant files 2009-07-28 17:23:11 +00:00
Paul Bakker 2b222c830b - Changed interface for AES and Camellia setkey functions to indicate invalid key lengths. 2009-07-27 21:03:45 +00:00
Paul Bakker 785a9eeece - Added email address to header license information 2009-01-25 14:15:10 +00:00
Paul Bakker 864801ef41 - Added license replacement script 2009-01-25 11:59:46 +00:00
Paul Bakker e0ccd0a7c3 - Updated Copyright notices 2009-01-04 16:27:10 +00:00
Paul Bakker 40e46940df - First replacement of xyssl by polarssl where needed 2009-01-03 21:51:57 +00:00
Paul Bakker 5121ce5bdb - Renamed include directory to polarssl 2009-01-03 21:22:43 +00:00