Commit Graph

63 Commits

Author SHA1 Message Date
Gavin Acquroff
ceb9990a69 Support set *_drbg reseed interval before seed
mbedtls_ctr_drbg_set_reseed_interval() and
mbedtls_hmac_drbg_set_reseed_interval() can now be called before
their seed functions and the reseed_interval value will persist.
Previously it would be overwritten with the default value.

*_drbg_reseed_interval is now set in init() and free().

mbedtls_ctr_drbg_free() and mbedtls_hmac_drbg_free() now
reset the drbg context to the state immediately after init().

Tests:
- Added test to check that DRBG reseeds when reseed_counter
reaches reseed_interval, if reseed_interval set before seed
and reseed_interval is less than MBEDTLS_*_DRBG_RESEED_INTERVAL.

Signed-off-by: gacquroff <gavina352@gmail.com>
2020-12-03 13:08:37 -08:00
Bence Szépkúti
44bfbe3b95 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
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# ========================

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-08-19 16:54:51 +02:00
Bence Szépkúti
4e9f71227a Update license headers to Apache-2.0 OR GPL-2.0-or-later
This will allow us to ship the LTS branches in a single archive

This commit was generated using the following script:

# ========================
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 *  Apache License 2.0:\
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 *  Licensed under the Apache License, Version 2.0 (the "License"); you may\
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 *  You may obtain a copy of the License at\
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 *  http://www.apache.org/licenses/LICENSE-2.0\
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 *  Unless required by applicable law or agreed to in writing, software\
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 *  See the License for the specific language governing permissions and\
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 *  **********\
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 *  GNU General Public License v2.0 or later:\
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 *  This program is free software; you can redistribute it and/or modify\
 *  it under the terms of the GNU General Public License as published by\
 *  the Free Software Foundation; either version 2 of the License, or\
 *  (at your option) any later version.\
 *\
 *  This program is distributed in the hope that it will be useful,\
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of\
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 *\
 *  You should have received a copy of the GNU General Public License along\
 *  with this program; if not, write to the Free Software Foundation, Inc.,\
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\
 *\
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find -path './.git' -prune -o '(' -name '*.c' -o -name '*.cpp' -o -name '*.fmt' -o -name '*.h' ')' -print | xargs sed -i "
# Normalize the first line of the copyright headers (no text on the first line of a block comment)
/^\/\*.*Copyright.*Arm/I s/\/\*/&\n */

# Insert new copyright header
/SPDX-License-Identifier/ i\
$header1

# Delete old copyright header
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# Format copyright header for inclusion into scripts
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find -path './.git' -prune -o '(' -name '*.gdb' -o -name '*.pl' -o -name '*.py' -o -name '*.sh' ')' -print | xargs sed -i "
# Insert new copyright header
/SPDX-License-Identifier/ i\
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Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-06-15 12:56:41 +02:00
Jaeden Amero
d8180f8d84 Merge remote-tracking branch 'origin/mbedtls-2.7' into mbedtls-2.7-restricted
* origin/mbedtls-2.7:
  Enable more test cases without MBEDTLS_MEMORY_DEBUG
  More accurate test case description
  Clarify that the "FATAL" message is expected
  Note that mbedtls_ctr_drbg_seed() must not be called twice
  Fix CTR_DRBG benchmark
  Changelog entry for xxx_drbg_set_entropy_len before xxx_drbg_seed
  CTR_DRBG: support set_entropy_len() before seed()
  CTR_DRBG: Don't use functions before they're defined
  HMAC_DRBG: support set_entropy_len() before seed()
2020-01-15 16:59:10 +00:00
Gilles Peskine
b2be1fca2c Catch AES failure in mbedtls_ctr_drbg_random
The functions mbedtls_ctr_drbg_random() and
mbedtls_ctr_drbg_random_with_add() could return 0 if an AES function
failed. This could only happen with alternative AES
implementations (the built-in implementation of the AES functions
involved never fail), typically due to a failure in a hardware
accelerator.

Bug reported and fix proposed by Johan Uppman Bruce and Christoffer
Lauri, Sectra.
2019-11-28 09:55:25 +01:00
Gilles Peskine
b729e1b9ba CTR_DRBG: support set_entropy_len() before seed()
mbedtls_ctr_drbg_seed() always set the entropy length to the default,
so a call to mbedtls_ctr_drbg_set_entropy_len() before seed() had no
effect. Change this to the more intuitive behavior that
set_entropy_len() sets the entropy length and seed() respects that and
only uses the default entropy length if there was no call to
set_entropy_len().

The former test-only function mbedtls_ctr_drbg_seed_entropy_len() is
no longer used, but keep it for strict ABI compatibility.
2019-10-23 18:01:25 +02:00
Gilles Peskine
845ac103a9 CTR_DRBG: Don't use functions before they're defined
Move the definitions of mbedtls_ctr_drbg_seed_entropy_len() and
mbedtls_ctr_drbg_seed() to after they are used. This makes the code
easier to read and to maintain.
2019-10-23 18:01:25 +02:00
Gilles Peskine
9ce2972399 CTR_DRBG: add mbedtls_ctr_drbg_update_ret
Deprecate mbedtls_ctr_drbg_update (which returns void) in favor of a
new function mbedtls_ctr_drbg_update_ret which reports error. The old
function is not officially marked as deprecated in this branch because
this is a stable maintenance branch.
2018-09-13 22:19:31 +02:00
Gilles Peskine
d324c5954a CTR_DRBG: clean stack buffers
Wipe stack buffers that may contain sensitive data (data that
contributes to the DRBG state.
2018-09-13 22:10:46 +02:00
Paul Sokolovsky
8d6d8c84b1 ctr_drbg: Typo fix in the file description comment.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-02-10 11:11:41 +02:00
Jaeden Amero
a03587b848 Merge branch 'development' into development-restricted 2018-01-26 12:48:04 +00:00
Dvir Markovich
1b36499062 Improve CTR_DRBG error handling and cleanup
Check AES return values and return error when needed. Propagate the
underlying AES return code.

Perform more memory cleanup.
2018-01-26 11:40:31 +00:00
Andres Amaya Garcia
4e2c07c6e1 Zeroize tmp buf in ctr_drbg_write_seed_file() 2017-06-27 16:57:26 +01:00
Andres Amaya Garcia
13f41e1c20 Zeroize tmp bufs in ctr_drbg.c functions 2017-06-26 11:04:35 +01:00
Andres Amaya Garcia
6a54336897 Fix integer overflows in buffer bound checks
Fix potential integer overflows in the following functions:
  * mbedtls_md2_update() to be bypassed and cause
  * mbedtls_cipher_update()
  * mbedtls_ctr_drbg_reseed()
This overflows would mainly be exploitable in 32-bit systems and could
cause buffer bound checks to be bypassed.
2017-02-15 23:31:07 +02:00
Simon Butcher
71c7ac5597 Corrects incorrectly named function in ctr_drbg.c comment 2016-05-10 23:47:30 +01:00
Simon Butcher
295639bfa1 Fixes minor typos in comments in pk.h and ctr_drbg.c
Fixes typos in PRs #475 and #437
2016-05-10 19:39:36 +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
ccc302692a Fix bug introduced when splitting init functions 2015-05-11 14:35:42 +02:00
Manuel Pégourié-Gonnard
0a4fb09534 Make xxx_drbg_random() thread-safe 2015-05-11 14:35:41 +02:00
Manuel Pégourié-Gonnard
8d128efd48 Split mbedtls_ctr_drbg_init() -> seed() 2015-04-28 22:38:08 +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
932e3934bd Fix typos & Co 2015-04-03 18:46:55 +02:00
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
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
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
Manuel Pégourié-Gonnard
5cb4b31057 Fix missing bound check 2015-01-13 14:58:00 +01:00
Paul Bakker
fff0366bba Add ctr_drbg_free() 2014-07-09 10:19:23 +02:00
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
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
Paul Bakker
4c284c9141 Removed LCOV directives from code 2014-03-26 15:33:05 +01:00
Manuel Pégourié-Gonnard
9592485d0c Fix some MSVC12 conversion warnings 2014-03-21 12:03:07 +01:00
Paul Bakker
7dc4c44267 Library files moved to use platform layer 2014-02-06 13:20:16 +01:00
Manuel Pégourié-Gonnard
446ee6618f Add LCOV_EXCLUDE_LINE on some IO errors 2014-02-01 10:08:26 +01:00
Manuel Pégourié-Gonnard
b3b205e081 Clean up details in ctr_drbg_selftest() 2014-01-31 12:04:06 +01:00
Manuel Pégourié-Gonnard
7c59363a85 Remove a few dead stores 2014-01-22 13:02:39 +01:00
Paul Bakker
b9cfaa0c7f Explicit conversions and minor changes to prevent MSVC compiler warnings 2013-10-14 15:50:40 +02:00
Paul Bakker
18f0341aed Typo in comments in ctr_drbg.c 2013-09-11 11:05:56 +02:00