Rewrite mbedtls_debug_print_mpi to be simpler and smaller. Leverage
mbedtls_mpi_bitlen() instead of manually looking for the leading
zeros.
Fix#4608: the old code made an invalid memory dereference when
X->n==0 (freshly initialized bignum with the value 0).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
There was already a test case for 0 but with a non-empty representation
(X->n == 1). Add a test case with X->n == 0 (freshly initialized mpi).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Fix mbedtls_net_poll() and mbedtls_net_recv_timeout() often failing with
MBEDTLS_ERR_NET_POLL_FAILED on Windows: they were testing that the file
descriptor is in range for fd_set, but on Windows socket descriptors are not
limited to a small range. Fixes#4465.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Trailing white space causing check_files.py to fail
issue4176.txt was also in dos format - this has been
changed to unix
Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
The original formatting was in dos and the changelog
assembler would fail. The length of the description was
too long horizontally. This has been updated.
Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
in file tests/suite/test_suite_aes.function, aes_crypt_xts_size()
did not free the context upon the function exit.
The function now frees the context on exit.
Already resolved for 2.x and development - this is a backport for
2.16
Fixes#4176
Signed-off-by: JoeSubbiani <Joe.Subbiani@arm.com>
We know that we'll never call this function with T_size == 0, but the
compiler doesn't.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
Unrelated to RSA (only used in ECP), but while improving one
mbedtls_safe_cond_xxx function, let's improve the other as well.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
mbedtls_mpi_cf_bool_eq() is a verbatim copy of mbedtls_ssl_cf_bool_eq()
Deduplication will be part of a future task.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
* mbedtls-2.16:
Disable OS X builds on Travis
Fix null pointer arithmetic in error case
Fix ecp_muladd test cases never getting executed
New macros TEST_EQUAL, ASSERT_ALLOC, ASSERT_ALLOC_WEAK
Remove spurious dependencies on PEM
Fix misuse of MD API in SSL constant-flow HMAC
dhm_make_common includes a piece of code that is identical to
dhm_random_below except for returning a different error code in one
case. Call dhm_random_below instead of repeating the code.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
P-1 is as bad as 1 as a blinding value. Don't accept it.
The chance that P-1 would be randomly generated is infinitesimal, so
this is not a practical issue, but it makes the code cleaner. It was
inconsistent to accept P-1 as a blinding value but not as a private key.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Unify the common parts of mbedtls_dhm_make_params and mbedtls_dhm_make_public.
No intended behavior change, except that the exact error code may
change in some corner cases which are too exotic for the existing unit
tests.
Removed usage of MBEDTLS_ERROR_ADD which does not exist in 2.16.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
mbedtls_dhm_make_params() with x_size != size of P is not likely to be
useful, but it's supported, so test it.
Cherry-picked 33ec863570e2448319ae8b44e8e4b52183450e73
Changed mbedtls_test_rnd_pseudo_info type to rnd_pseudo_info
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Repeat a few tests that use random data. This way the code is
exercised with a few different random values.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Improve the validation of the output from mbedtls_dhm_make_params:
* Test that the output in the byte buffer matches the value in the
context structure.
* Test that the calculated values are in the desired range.
Cherry-picked dc0b6e44b0147809f4541ec2a0760eeeabdea485.
Changed mbedtls_test_rnd_pseudo_rand to rnd_pseudo_rand.
Removed test step code.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
When mbedtls_nist_kw_wrap was called with output=NULL and out_size=0, it
performed arithmetic on the null pointer before detecting that the output
buffer is too small and returning an error code. This was unlikely to have
consequences on real-world hardware today, but it is undefined behavior and
UBSan with Clang 10 flagged it. So fix it (fix#4025).
Fix a similar-looking pattern in unwrap, though I haven't verified that it's
reachable there.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
