Commit Graph

9271 Commits

Author SHA1 Message Date
Gilles Peskine
e215a4d05e mbedtls_ctr_drbg_seed: correct maximum for len 2019-10-04 18:22:50 +02:00
Gilles Peskine
f6c2061af2 Add a note about CTR_DRBG security strength to config.h 2019-10-04 11:21:25 +02:00
Gilles Peskine
1989218456 Move MBEDTLS_CTR_DRBG_USE_128_BIT_KEY to the correct section
It's an on/off feature, so it should be listed in version_features.
2019-10-04 11:21:25 +02:00
Gilles Peskine
dd5b67b4f4 CTR_DRBG: more consistent formatting and wording
In particular, don't use #MBEDTLS_xxx on macros that are undefined in
some configurations, since this would be typeset with a literal '#'.
2019-10-04 11:21:25 +02:00
Gilles Peskine
e3d8cf1966 CTR_DRBG documentation: further wording improvements 2019-10-02 19:02:13 +02:00
Gilles Peskine
596fdfd6cf CTR_DRBG: Improve the explanation of security strength
Separate the cases that achieve a 128-bit strength and the cases that
achieve a 256-bit strength.
2019-10-02 19:01:31 +02:00
Jaeden Amero
b9fc0798d2 Merge remote-tracking branch 'origin/pr/2864' into mbedtls-2.16
* origin/pr/2864:
  Fix compilation error
  Add const to variable
  Fix endianity issue when reading uint32
  Increase test suite timeout
  Reduce stack usage of test_suite_pkcs1_v15
  Reduce stack usage of test_suite_pkcs1_v21
  Reduce stack usage of test_suite_rsa
  Reduce stack usage of test_suite_pk
2019-10-02 18:00:31 +01:00
Jaeden Amero
da5930654e Merge remote-tracking branch 'origin/pr/2578' into mbedtls-2.16
* origin/pr/2578:
  Remove a redundant function call
2019-10-02 17:59:28 +01:00
Jaeden Amero
b0328ba8a3 Merge remote-tracking branch 'origin/pr/2323' into mbedtls-2.16
* origin/pr/2323:
  Add missing dependencies in test_suite_cipher.gcm
  Adapt ChangeLog
  Add NIST AES GCM test vectors to single-step cipher API test suite
2019-10-02 17:57:37 +01:00
Gilles Peskine
8cec70a8c4 CTR_DRBG: make it easier to understand the security strength
Explain how MBEDTLS_CTR_DRBG_ENTROPY_LEN is set next to the security
strength statement, rather than giving a partial explanation (current
setting only) in the documentation of MBEDTLS_CTR_DRBG_ENTROPY_LEN.
2019-10-02 18:25:06 +02:00
Gilles Peskine
340d6099a0 HMAC_DRBG: note that the initial seeding grabs entropy for the nonce 2019-10-01 18:41:12 +02:00
Gilles Peskine
9fb4518728 Use standard terminology to describe the personalization string
NIST and many other sources call it a "personalization string", and
certainly not "device-specific identifiers" which is actually somewhat
misleading since this is just one of many things that might go into a
personalization string.
2019-10-01 18:39:45 +02:00
Gilles Peskine
3f9c973452 Do note that xxx_drbg_random functions reseed with PR enabled 2019-10-01 18:31:28 +02:00
Gilles Peskine
759c91d66a Consistently use \c NULL and \c 0 2019-10-01 18:30:02 +02:00
Gilles Peskine
6735363f80 Also mention HMAC_DRBG in the changelog entry
There were no tricky compliance issues for HMAC_DBRG, unlike CTR_DRBG,
but mention it anyway. For CTR_DRBG, summarize the salient issue.
2019-09-30 15:27:33 +02:00
Gilles Peskine
0b5e804c09 HMAC_DRBG: improve the documentation of the entropy length 2019-09-30 15:23:53 +02:00
Gilles Peskine
db6f41402c HMAC_DRBG documentation improvements clarifications
Improve the formatting and writing of the documentation based on what
had been done for CTR_DRBG.

Document the maximum size and nullability of some buffer parameters.
2019-09-30 15:20:41 +02:00
Gilles Peskine
0bf49eb85b More CTR_DRBG documentation improvements and clarifications 2019-09-30 15:20:41 +02:00
Gilles Peskine
c6b098655e Add a test component with malloc(0) returning NULL
Exercise the library functions with calloc returning NULL for a size
of 0. Make this a separate job with UBSan (and ASan) to detect
places where we try to dereference the result of calloc(0) or to do
things like

    buf = calloc(size, 1);
    if (buf == NULL && size != 0) return INSUFFICIENT_MEMORY;
    memcpy(buf, source, size);

which has undefined behavior when buf is NULL at the memcpy call even
if size is 0.

This is needed because other test components jobs either use the system
malloc which returns non-NULL on Linux and FreeBSD, or the
memory_buffer_alloc malloc which returns NULL but does not give as
useful feedback with ASan (because the whole heap is a single C
object).
2019-09-30 13:58:12 +02:00
Gilles Peskine
7430d23358 Add a calloc self-test
Add a very basic test of calloc to the selftest program. The selftest
program acts in its capacity as a platform compatibility checker rather
than in its capacity as a test of the library.

The main objective is to report whether calloc returns NULL for a size
of 0. Also observe whether a free/alloc sequence returns the address
that was just freed and whether a size overflow is properly detected.
2019-09-30 13:58:12 +02:00
Gilles Peskine
4284becde9 Fix wording 2019-09-26 14:54:42 +02:00
Gilles Peskine
761f88818e Remove warning that the previous expanded discussion has obsoleted 2019-09-26 14:53:44 +02:00
Gilles Peskine
c85dcb31d9 CTR_DRBG: improve the discussion of entropy length vs strength 2019-09-25 20:22:40 +02:00
Gilles Peskine
3354f75bc1 CTR_DRBG: Finish an unfinished paragraph 2019-09-25 20:22:24 +02:00
Gilles Peskine
3c3bf4dfdb CTR_DRBG documentation: add changelog entry
This is a documentation-only change, but one that users who care about
NIST compliance may be interested in, to review if they're using the
module in a compliant way.
2019-09-25 20:07:04 +02:00
Gilles Peskine
1eb7ba7cdd CTR_DRBG: Document the security strength and SP 800-90A compliance
Document that a derivation function is used.

Document the security strength of the DRBG depending on the
compile-time configuration and how it is set up. In particular,
document how the nonce specified in SP 800-90A is set.

Mention how to link the ctr_drbg module with the entropy module.
2019-09-25 20:06:55 +02:00
Ron Eldor
ae9f2a2acc Fix compilation error
Change test_info.failed to test_info.result,
as it was previously changed.
2019-09-25 15:04:21 +03:00
Ron Eldor
39512b4b8a Add const to variable
Add const type that was accidently removed.
2019-09-25 14:53:42 +03:00
Ron Eldor
6e76108e15 Fix endianity issue when reading uint32
The uint32 is given as a bigendian stream, in the tests, however,
the char buffer that collected the stream read it as is,
without converting it. Add a temporary buffer, to call `greentea_getc()`
8 times, and then put it in the correct endianity for input to `unhexify()`.
2019-09-25 14:53:35 +03:00
Ron Eldor
2ad73aa388 Increase test suite timeout
Increase the test suite timeouit from 180 seconds, to 800 seconds,
since some tests consume more time, even if all tests are skipped.
2019-09-25 14:53:26 +03:00
Ron Eldor
3adb981383 Reduce stack usage of test_suite_pkcs1_v15
Reduce the stack usage of the `test_suite_pkcs1_v15` by reducing the
size of the buffers used in the tests, to a reasonable big enough size.
2019-09-25 14:53:15 +03:00
Ron Eldor
5d7254a091 Reduce stack usage of test_suite_pkcs1_v21
Reduce the stack usage of the `test_suite_pkcs1_v21` by reducing the
size of the buffers used in the tests, to a reasonable big enough size,
and change the size sent to the API to sizeof output.
2019-09-25 14:53:04 +03:00
Ron Eldor
e4c5fa74b8 Reduce stack usage of test_suite_rsa
Reduce the stack usage of the `test_suite_rsa` by reducing the
size of the buffers used in the tests, to a reasonable big enough size,
and change the data size to decrypt in the data file.
2019-09-25 14:51:19 +03:00
Ron Eldor
5533f4aff1 Reduce stack usage of test_suite_pk
Reduce the stack usage of the `test_suite_pk` by reducing the
size of the buffers used in the tests, to a reasonable big enough size.
2019-09-25 14:51:12 +03:00
Gilles Peskine
80b3f4b20a CTR_DRBG: Document the maximum size of some parameters 2019-09-24 14:48:30 +02:00
Gilles Peskine
6b2c50c01f CTR_DRBG documentation clarifications
* State explicit whether several numbers are in bits or bytes.
* Clarify whether buffer pointer parameters can be NULL.
* Explain the value of constants that are dependent on the configuration.
2019-09-24 14:48:10 +02:00
Jaeden Amero
a48270a0d8 Merge remote-tracking branch 'origin/pr/2826' into mbedtls-2.16
* origin/pr/2826:
  Enable MBEDTLS_MEMORY_DEBUG in memory buffer alloc test in all.sh
  Remove unnecessary memory buffer alloc and memory backtrace unsets
  Disable DTLS proxy tests for MEMORY_BUFFER_ALLOC test
  all.sh: restructure memory allocator tests
  Add missing dependency in memory buffer alloc set in all.sh
  Don't set MBEDTLS_MEMORY_DEBUG through `scripts/config.pl full`
  Add cfg dep MBEDTLS_MEMORY_DEBUG->MBEDTLS_MEMORY_BUFFER_ALLOC_C
  Add all.sh run with full config and ASan enabled
  Add all.sh run with MBEDTLS_MEMORY_BUFFER_ALLOC_C enabled
  Update documentation of exceptions for `config.pl full`
  Adapt all.sh to removal of buffer allocator from full config
  Disable memory buffer allocator in full config
  Check dependencies of MBEDTLS_MEMORY_BACKTRACE in check_config.h
2019-09-12 16:46:28 +01:00
Andrzej Kurek
60ebd98a50 Enable MBEDTLS_MEMORY_DEBUG in memory buffer alloc test in all.sh 2019-09-10 03:07:44 -04:00
Andrzej Kurek
c73f857217 Remove unnecessary memory buffer alloc and memory backtrace unsets
Also unify the sanitization LDFLAGS with development
2019-09-10 03:07:29 -04:00
Andrzej Kurek
1f5a596fe2 Disable DTLS proxy tests for MEMORY_BUFFER_ALLOC test 2019-09-09 05:29:02 -04:00
Andrzej Kurek
1d0708215b all.sh: restructure memory allocator tests
Run basic tests and ssl-opt with memory backtrace disabled, then
run basic tests only with it enabled.
2019-09-09 05:28:53 -04:00
Hanno Becker
d130b98c68 Add missing dependency in memory buffer alloc set in all.sh 2019-09-09 05:28:42 -04:00
Hanno Becker
dfc974412c Don't set MBEDTLS_MEMORY_DEBUG through scripts/config.pl full 2019-09-09 05:28:25 -04:00
Hanno Becker
9ae9da93d8 Add cfg dep MBEDTLS_MEMORY_DEBUG->MBEDTLS_MEMORY_BUFFER_ALLOC_C 2019-09-09 05:28:13 -04:00
Hanno Becker
f8799e8b84 Add all.sh run with full config and ASan enabled 2019-09-09 05:25:33 -04:00
Hanno Becker
74b5e34d1b Add all.sh run with MBEDTLS_MEMORY_BUFFER_ALLOC_C enabled
With the removal of MBEDTLS_MEMORY_BUFFER_ALLOC_C from the
full config, there are no tests for it remaining in all.sh.
This commit adds a build as well as runs of `make test` and
`ssl-opt.sh` with MBEDTLS_MEMORY_BUFFER_ALLOC_C enabled to all.sh.
2019-09-09 05:25:21 -04:00
Andrzej Kurek
8762101c01 Update documentation of exceptions for config.pl full 2019-09-09 05:25:05 -04:00
Andrzej Kurek
a9c2a3b244 Adapt all.sh to removal of buffer allocator from full config
Previously, numerous all.sh tests manually disabled the buffer allocator
or memory backtracting after setting a full config as the starting point.

With the removal of MBEDTLS_MEMORY_BACKTRACE and MBEDTLS_MEMORY_BUFFER_ALLOC_C
from full configs, this is no longer necessary.
2019-09-09 05:22:39 -04:00
Hanno Becker
307dfcd439 Disable memory buffer allocator in full config
This commit modifies `config.pl` to not set MBEDTLS_MEMORY_BUFFER_ALLOC
with the `full` option.
2019-09-09 05:17:37 -04:00
Hanno Becker
e29e7eb36c Check dependencies of MBEDTLS_MEMORY_BACKTRACE in check_config.h 2019-09-09 05:17:13 -04:00