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Author SHA1 Message Date
Dave Rodgman
378280e57f Revert "Move constant_flow.h into the main library" 
This reverts commit fd78c34e23.

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-07-31 17:22:55 +01:00
Dave Rodgman
fd78c34e23 Move constant_flow.h into the main library 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-07-31 12:48:33 +01:00
Dave Rodgman
1714a9b0eb Revert to old design for mbedtls_ct_memmove_left 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-07-31 12:48:33 +01:00
Dave Rodgman
07f853713d Clarify comments in mbedtls_ct_memcpy_if 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-07-31 12:27:49 +01:00
Dave Rodgman
d684d7342b code style 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-07-28 16:39:38 +01:00
Dave Rodgman
fa5a4bbb02 Improve mbedtls_ct_memmove_left w.r.t. const-flow tests 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-07-28 16:13:52 +01:00
Dave Rodgman
9fbb0cf08e Merge remote-tracking branch 'origin/development' into safer-ct5 2023-06-28 18:52:02 +01:00
Tom Cosgrove
db041cc82f
Merge pull request #7665 from AndrzejKurek/optimize-error-translation-code-size 
Optimize error translation code size
 2023-06-28 08:09:00 +01:00
Dave Rodgman
5b5dd011d1 code style 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-21 16:36:47 +01:00
Dave Rodgman
b5b6939fc2 Remove redundant checks in constant_time.c 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-21 16:36:42 +01:00
Dave Rodgman
0400ae2f9b Fix pointer constraint in bn_mul.h 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-21 16:31:52 +01:00
Dave Rodgman
c54f25e26c code style 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-21 13:39:30 +01:00
Dave Rodgman
63e89b46f8 Use UINTPTR_MAX not SIZE_MAX 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-21 11:58:54 +01:00
Dave Rodgman
85842b8edb Be strict about pointer size in mbedtls_get_unaligned_volatile_uint32 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-21 11:22:09 +01:00
Dave Rodgman
b67db9140e Separate ILP32 and normal-aarch64 code paths 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-21 09:15:27 +01:00
Dave Rodgman
04cb9ac59e Fix for arm64_32 (aka ILP32) on Clang (attempt 2) 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-21 07:32:22 +01:00
Dave Rodgman
b19f584f2c Fix for arm64_32 (aka ILP32) on Clang 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-20 23:01:43 +01:00
Andrzej Kurek
1e4a030b00 Fix wrong array size calculation in error translation code 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2023-06-13 05:46:47 -04:00
Andrzej Kurek
1c7a99856f Add missing ifdefs 
Make sure that the error translating functions
are only defined when they're used.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2023-06-13 05:46:47 -04:00
Andrzej Kurek
0064484a70 Optimize error translation code size 
Introducing an intermediate function
saves code size that's otherwise taken by excessive,
repeated arguments in each place that
was translating errors.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2023-06-13 05:46:46 -04:00
Dave Rodgman
1ab0b48ac3 Code style 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-12 18:22:18 +01:00
Dave Rodgman
58c80f4d92 Make mbedtls_ct_zero non-static 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-06-12 18:19:46 +01:00
Dave Rodgman
1947088f91 Remove references to rsa.h and ssl_misc.h from constant_time.c 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
585f7f776d Whitespace etc 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
8f5e5c18d8 Make memmove_left more efficient 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
2b4486a014 Rename mbedtls_ct_uint_if_new to mbedtls_ct_uint_if 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
2243137715 Remove old interface 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
199a2c5d39 Use new CT interface in mbedtls_ct_memcpy_offset 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
231a516682 Remove not-needed mbedtls_ct_mpi_uint_cond_assign 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
7fe6e6fb2b Add impl of mbedtls_ct_memcpy_if 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
15c142b58d Use new interface in mbedtls_ct_memmove_left 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
6cee26db16 Remove old interface for mem_move_to_left 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
debf8679e0 Add impl of mbedtls_ct_zeroize_if 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
40a41d0461 Introduce new CT interface (retain old interface) 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
7d4f019810 Move some bignum functions out of constant_time module 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
19e8cd06fe Move mbedtls_ct_rsaes_pkcs1_v15_unpadding into rsa.c 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
0afe001871 Expose mbedtls_ct_size_gt and mbedtls_ct_mem_move_to_left in ct interface 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
2801f7fa8d Move mbedtls_ct_hmac into ssl_msg.c 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
0ee9683987 Move mbedtls_ct_base64_(enc|dec)_char into base64.c 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:40 +01:00
Tom Cosgrove
e22413c8df Use mbedtls_ct_uint_if() rather than mbedtls_ct_cond_select_sign() 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2023-05-03 09:44:01 +01:00
Andrzej Kurek
8a045ce5e6 Unify PSA to Mbed TLS error translation 
Move all error translation utilities to psa_util.c.
Introduce macros and functions to avoid having
a local copy of the error translating function in
each place.
Identify overlapping errors and introduce a
generic function.
Provide a single macro for all error translations
(unless one file needs a couple of different ones).
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2023-03-03 05:23:44 -05:00
Dave Rodgman
4610d4b7a6 Inhibit compiler from optimising out const-time asm 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-01-30 09:26:48 +00:00
Dave Rodgman
7658b63390 Remove volatile from diff; add explanatory comment 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-01-20 14:04:48 +00:00
Dave Rodgman
b9cd19bc8c Prevent perf regressions in mbedtls_xor 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-01-20 14:04:48 +00:00
Dave Rodgman
051225d07a Address potential perf regression 
Ensure platforms that don't have an assembly implementation for
mbedtls_get_unaligned_volatile_uint32() don't experience a performance
regression.

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-01-20 14:04:48 +00:00
Dave Rodgman
36dfc5a237 Improve efficiency of some constant time functions 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-01-20 14:04:48 +00:00
Gilles Peskine
449bd8303e Switch to the new code style 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2023-01-11 14:50:10 +01:00
Gilles Peskine
db2996357c
Merge pull request #6289 from gabor-mezei-arm/6237_Add_conditional_assign_and_swap_for_bignum 
Bignum: Add safe conditional assign and swap for the new MPI types
 2022-10-19 15:51:19 +02:00
Gabor Mezei
d7edb1d225
Initialize variable 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2022-10-10 14:32:09 +02:00
Gabor Mezei
3eff425b1a
Use only one limb parameter for assign 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2022-09-30 13:36:40 +02:00