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Author SHA1 Message Date
Gilles Peskine ddffa06501 Add ChangeLog entry 2018-10-03 13:40:16 +02:00
Gilles Peskine e2a10de275 Fix a timing-based Bleichenbacher attack on PKCS#1v1.5 decryption 
mbedtls_rsa_rsaes_pkcs1_v15_decrypt took care of calculating the
padding length without leaking the amount of padding or the validity
of the padding. However it then skipped the copying of the data if the
padding was invalid, which could allow an adversary to find out
whether the padding was valid through precise timing measurements,
especially if for a local attacker who could observe memory access via
cache timings.

Avoid this leak by always copying from the decryption buffer to the
output buffer, even when the padding is invalid. With invalid padding,
copy the same amount of data as what is expected on valid padding: the
minimum valid padding size if this fits in the output buffer,
otherwise the output buffer size. To avoid leaking payload data from
an unsuccessful decryption, zero the decryption buffer before copying
if the padding was invalid.
 2018-10-03 01:03:05 +02:00
Gilles Peskine 5908dd4455 Minor readability improvement 
Polish the beginning of mbedtls_rsa_rsaes_pkcs1_v15_decrypt a little,
to prepare for some behavior changes.
 2018-10-02 22:43:06 +02:00
Simon Butcher 53546ea099 Update library version number to 2.13.1 2018-09-06 19:10:26 +01:00
Simon Butcher 5d40f67138 Merge remote-tracking branch 'public/pr/1927' into development-restricted 2018-09-06 16:24:48 +01:00
Hanno Becker d2ef25478e Don't define _POSIX_C_SOURCE in header file 2018-09-06 14:53:25 +01:00
Hanno Becker f5106d54eb Don't declare and define gmtime()-mutex on Windows platforms 2018-09-06 12:09:56 +01:00
Hanno Becker 323d8019bf Correct preprocessor guards determining use of gmtime() 
The previous code erroneously used gmtime_r() to implement
mbedtls_platform_gmtime() in case of a non-windows, non-unix system.
 2018-09-06 11:30:57 +01:00
Hanno Becker 03b2bd4a06 Correct documentation of mbedtls_platform_gmtime_r() 
Previous documentation stated that gmtime_r() was from the standard library,
but it's POSIX.
 2018-09-06 09:08:55 +01:00
Hanno Becker a50fed9910 Correct typo in documentation of mbedtls_platform_gmtime_r() 2018-09-06 09:08:39 +01:00
Hanno Becker 6f70581c4a Correct POSIX version check to determine presence of gmtime_r() 
Recent versions of POSIX move gmtime_r to the base.
 2018-09-06 09:06:33 +01:00
Hanno Becker c52ef407ba Improve documentation of mbedtls_platform_gmtime_r() 2018-09-05 16:36:31 +01:00
Hanno Becker 7dd82b4f51 platform_utils.{c/h} -> platform_util.{c/h} 2018-09-05 16:26:04 +01:00
Hanno Becker 5a7fe14590 Don't include platform_time.h if !MBEDTLS_HAVE_TIME 
platform_time.h includes time.h, which is not assumed to be present
on a system where MBEDTLS_HAVE_TIME is not defined.
 2018-09-05 16:24:44 +01:00
Hanno Becker 9fbbf1c1f0 Improve wording of documentation of MBEDTLS_PLATFORM_GMTIME_R_ALT 2018-09-05 16:23:02 +01:00
Hanno Becker c9468885a8 Fix typo in documentation of MBEDTLS_PLATFORM_GMTIME_R_ALT 2018-09-05 16:22:10 +01:00
Hanno Becker 921b76d056 Replace 'thread safe' by 'thread-safe' in the documentation 2018-09-05 16:21:36 +01:00
Hanno Becker 9a51d01984 Improve documentation of MBEDTLS_HAVE_TIME_DATE 2018-09-05 16:20:09 +01:00
Hanno Becker acef292eac ChangeLog: Add missing renamings gmtime -> gmtime_r 2018-09-05 16:19:07 +01:00
Hanno Becker 4e67cca1d9 Improve documentation of MBEDTLS_HAVE_TIME_DATE 2018-09-05 16:18:38 +01:00
Hanno Becker 48a816ff26 Minor documentation improvements 2018-09-05 15:22:22 +01:00
Hanno Becker 651d586ccf Style: Add missing period in documentation in threading.h 2018-09-05 15:17:43 +01:00
Hanno Becker 6a739789f3 Rename mbedtls_platform_gmtime() to mbedtls_platform_gmtime_r() 
For consistency, also rename MBEDTLS_PLATFORM_GMTIME_ALT to
MBEDTLS_PLATFORM_GMTIME_R_ALT.
 2018-09-05 15:06:19 +01:00
Hanno Becker be2e4bddd5 Guard decl and use of gmtime mutex by HAVE_TIME_DATE and !GMTIME_ALT 2018-09-05 14:44:31 +01:00
Hanno Becker 5f95c798a3 Remove another mentioning of IAR from config.h 2018-09-05 14:36:36 +01:00
Hanno Becker 272675f4c6 Correct documentation of mbedtls_platform_gmtime() 2018-09-05 14:03:02 +01:00
Hanno Becker cfeb70c6b9 gmtime: Remove special treatment for IAR 
Previous commits attempted to use `gmtime_s()` for IAR systems; however,
this attempt depends on the use of C11 extensions which lead to incompatibility
with other pieces of the library, such as the use of `memset()` which is
being deprecated in favor of `memset_s()` in C11.
 2018-09-05 13:52:46 +01:00
Andres Amaya Garcia 94b540ac63 Avoid redefining _POSIX_C_SOURCE 2018-09-05 12:27:32 +01:00
Andres Amaya Garcia 45e30201a4 Document that IAR gmtime_s() is auto selected 2018-09-05 12:05:59 +01:00
Andres Amaya Garcia 433f911e59 Check for IAR in gmtime macros 2018-09-05 12:01:57 +01:00
Andres Amaya Garcia e58088edb9 Clarify docs for MBEDTLS_HAVE_TIME_DATE 2018-09-05 11:55:49 +01:00
Andres Amaya Garcia c29c34c1b4 Improve wording of gmtime feature in ChangeLog 2018-09-05 11:54:40 +01:00
Andres Amaya Garcia 3c9733a0a3 Fix typo in comment for gmtime macro defines 2018-09-05 11:52:07 +01:00
Andres Amaya Garcia 193fe893a6 Add missing _POSIX_C_SOURCE define in threading.h 2018-09-05 11:47:33 +01:00
Andres Amaya Garcia ca04a01bb8 Document shorthand gmtime macros 2018-09-05 11:43:57 +01:00
Andres Amaya Garcia 8c9a620fb6 Fix missing word in ChangeLog entry for gmtime() 2018-09-05 11:30:28 +01:00
Andres Amaya Garcia 209960611f Use gmtime_s() for IAR 2018-09-05 11:27:56 +01:00
Andres Amaya Garcia e9b10b21f1 Define _POSIX_C_SOURCE in threading.c before POSIX detection 2018-09-05 11:25:30 +01:00
Andres Amaya Garcia c2f948b6c6 Fix grammar in docs for MBEDTLS_HAVE_TIME_DATE 2018-09-05 11:21:44 +01:00
Simon Butcher c0a63bd0c1 Remove duplication of some entries in the ChangeLog 
Fixes for #1941 and #1954 were listed twice.
 2018-09-04 09:54:28 +01:00
Simon Butcher b70158b9b4
Merge pull request #505 from sbutcher-arm/mbedtls-version-2.13.0 
Update library version number to 2.13.0
 2018-08-31 17:29:05 +01:00
Simon Butcher 4d075cd7d0 Update library version number to 2.13.0 2018-08-31 15:59:10 +01:00
Simon Butcher b5afb97244 Revised and clarified ChangeLog 
Minor changes to fix language, merge mistakes and incorrect classifications of
changes.
 2018-08-31 11:59:56 +01:00
Simon Butcher 0bbb4fc132 Merge branch 'development' into development 2018-08-30 01:11:35 +01:00
Simon Butcher 552754a6ee Merge remote-tracking branch 'public/pr/1988' into development 2018-08-30 00:57:28 +01:00
Simon Butcher 68dbc94720 Merge remote-tracking branch 'public/pr/1951' into development 2018-08-30 00:56:56 +01:00
Simon Butcher e50128a692 Merge remote-tracking branch 'public/pr/1994' into development 2018-08-30 00:56:18 +01:00
Simon Butcher 07de4c0035 Merge remote-tracking branch 'public/pr/1920' into development 2018-08-30 00:56:08 +01:00
Simon Butcher 822a9cca8c Merge remote-tracking branch 'public/pr/1994' into development-restricted 2018-08-29 18:03:03 +01:00
Hanno Becker 108992e776 Add MTU auto-reduction test with valgrind 2018-08-29 17:19:09 +01:00