Commit graph

136 commits

Author SHA1 Message Date
Dave Rodgman
f1be1f6740 Remove unused code
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-12-01 13:53:45 +00:00
Dave Rodgman
16799db69a update headers
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-11-02 19:47:20 +00:00
Dave Rodgman
c2630fac52 Simplify mbedtls_ct_memcmp_partial
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-09-19 17:21:50 +01:00
Dave Rodgman
9c14007ac3 Add mbedtls_ct_memcmp_partial
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-09-19 09:10:59 +01:00
Dave Rodgman
bd58944252 Avoid implementation defined behaviour
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-09-12 12:38:53 +01:00
Dave Rodgman
50b0a35494 Test INT_MAX rather than UINT_MAX
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-09-12 09:30:44 +01:00
Dave Rodgman
98926d5fb1 Update comment, and replace bit-twiddling with #error
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-09-12 09:29:33 +01:00
Dave Rodgman
4f26770291 Ensure mbedtls_ct_memcpy behaves correctly with 16-bit int
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-09-11 19:10:09 +01:00
Dave Rodgman
d395590597
Merge pull request from daverodgman/safer-ct-asm
Arm assembly implementation of constant time primitives
2023-08-28 08:26:29 +00:00
Antonio de Angelis
f1adc2a7a1 Use asm instead of __asm in constant_time.c
The original IAR fix submitted to TF-M directly changed asm to __asm.
But mbed TLS now has a workaround for such cases hence just remove the
original change modification.

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
2023-08-16 12:48:48 +01:00
Antonio de Angelis
1ee4d1228c Fix error strings without quotes
Some of the error strings that should be printed with the
error preprocessor directive are missing quotes

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
2023-08-16 12:48:33 +01:00
TTornblom
e4f6d79bbe BUILD: Update For IAR support
Applied the same change as in mbed-crypto for using this as a sub
project with the IAR toolchain. Use __asm generic ,and avoid empty
enum. Avoid declaration of array with null size. This is a porting
of the original patch contributed to trusted-firmware-m.

Signed-off-by: TTornblom <thomas.tornblom@iar.com>
Signed-off-by: Michel Jaouen <michel.jaouen@st.com>
Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
2023-08-16 12:36:21 +01:00
David Horstmann
ba44e918b8 Remove unnecessary include from constant_time.c
This was added in order to use TEST_CF_XYZ macros which have since been
removed.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
2023-08-15 15:17:22 +01:00
Dave Rodgman
42391b4378 Perf improvement in memcpy_if
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-08-11 08:47:38 +01:00
Dave Rodgman
98ddc01a7c Rename ...if0 to ...else_0
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-08-10 12:11:31 +01:00
Dave Rodgman
b7825ceb3e Rename uint->bool operators to reflect input types
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2023-08-10 11:58:18 +01:00
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 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