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110 commits

Author SHA1 Message Date
Dave Rodgman
fb1b851797 Improve docs for mbedtls_mpi_core_cond_assign 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-07-31 12:27:05 +01:00
Dave Rodgman
8ac9a1df24 Use new CT interface in mbedtls_mpi_core_lt_ct 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
fd7fab4073 Update mbedtls_mpi_core_uint_le_mpi to new CT interface 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-05-26 12:42:48 +01:00
Dave Rodgman
cd2e38b906 Update mbedtls_mpi_safe_cond_(assign|swap) to use new CT 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
Paul Elliott
f0806bee66
Merge pull request #7489 from minosgalanakis/ecp/7246_xtrack_core_shift_l 
[Bignum]: Introduce left shift from prototype
 2023-05-16 17:13:19 +01:00
Minos Galanakis
b89440394f bignum_core: Removed input checking for mbedtls_mpi_core_shift_l 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-04 14:40:40 +01:00
Minos Galanakis
ec09e25251 bignum_core: Aligned xxx_core_shift_l to xxx_core_shift_r 
This patch modifies the left-shift implementation to closely
align in interface and behaviour to the existing right-shift
method.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-04-25 12:23:34 +01:00
Minos Galanakis
ad808dd5f1 bignum_core: Extracted mbedtls_mpi_shift_l from prototype 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-04-25 12:23:33 +01:00
Dave Rodgman
0f16d560aa Fix documentation 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-04-24 12:53:45 +01:00
Minos Galanakis
00bd8925a7 bignum: Removed merge scaffolding. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-04-05 16:13:11 +01:00
Gabor Mezei
d62605126d
Fix documentation 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-03 17:32:55 +02:00
Gabor Mezei
6f182c33a8
Fix documentation 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-03-31 16:17:06 +02:00
Tom Cosgrove
6af26f3838
Tidy up, remove MPI_CORE(), apply the naming convention, and use the new mbedtls_mpi_core_mul() 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-03-31 16:16:00 +02:00
Hanno Becker
4ae890bbd0
Extract MPI_CORE(mul) from the prototype 
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-03-31 16:10:34 +02:00
Tom Cosgrove
5c8505f061 Fix typos 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2023-03-07 11:39:52 +00:00
Tom Cosgrove
8a1f784ece Fix typos in doxygen commands in new bignum modules 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2023-02-01 08:43:54 +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
e162b4725c
Merge pull request #6777 from tom-cosgrove-arm/issue-6292-mod_inv 
Bignum: Implement high level fixed width modular inversion
 2022-12-17 13:26:02 +01:00
Tom Cosgrove
f723754f6d Fix typos 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-16 16:10:36 +00:00
Manuel Pégourié-Gonnard
5bf8629b2c
Merge pull request #6303 from gilles-peskine-arm/bignum-core-random 
Bignum: Implement mbedtls_mpi_core_random
 2022-12-16 09:58:07 +01:00
Tom Cosgrove
b38c2ed3d9 Fix double space between words 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-15 16:56:36 +00:00
Tom Cosgrove
786848b5c5 Add low-level Montgomery conversion functions to bignum_core 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-15 16:56:36 +00:00
Tom Cosgrove
28ff92cc3a Add an explicit mbedtls_mpi_core_montmul_working_limbs() function 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-15 16:56:36 +00:00
Tom Cosgrove
30f3b4d601 Add mbedtls_mpi_core_check_zero_ct() and tests 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-15 16:56:36 +00:00
Tom Cosgrove
a7f0d7b029 mbedtls_mpi_core_exp_mod() ouuput may alias input A 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-08 08:46:28 +00:00
Tom Cosgrove
0a0ddedfb7 Have mbedtls_mpi_core_exp_mod() take a temporary instead of allocating memory 
Last PR needed for #6293

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-06 14:37:18 +00:00
Tom Cosgrove
ecda186893 Require input to mbedtls_mpi_core_exp_mod() to already be in Montgomery form 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-06 10:46:30 +00:00
Gilles Peskine
4a8c5cdfbf Bignum core: random: prototype 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2022-12-01 23:44:07 +01:00
Gilles Peskine
6f949ea67b New constant-flow function mbedtls_mpi_core_uint_le_mpi 
Compare a single-limb MPI with a multi-limb MPI. This is rather ad hoc, but
will be useful for mbedtls_mpi_core_random.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2022-12-01 23:06:43 +01:00
Gilles Peskine
edaa17b350
Merge pull request #6547 from yanesca/extract_mod_exp_from_prototype 
Bignum: Extract mod exp from prototype
 2022-11-29 21:40:07 +01:00
Janos Follath
0ec6e3f394 mpi_core_mod_exp: improve style and documentation 
No intended change in behaviour.

Signed-off-by: Janos Follath <janos.follath@arm.com>
 2022-11-22 21:22:53 +00:00
Janos Follath
59cbd1be27 Make mbedtls_mpi_core_ct_uint_table_lookup static 
Now that we have a function that calls
mbedtls_mpi_core_ct_uint_table_lookup(), the compiler won't complain if
we make it static.

Signed-off-by: Janos Follath <janos.follath@arm.com>
 2022-11-22 21:22:53 +00:00
Janos Follath
b6673f0f19 Add modular exponentiation to bignum core 
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2022-11-22 21:22:53 +00:00
Tom Cosgrove
f7ff4c9a11 Tidy up, remove MPI_CORE(), and apply the naming convention 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-11-22 14:58:15 +00:00
Hanno Becker
d9b2348d8f Extract MPI_CORE(sub_int) from the prototype 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-11-22 14:58:15 +00:00
Janos Follath
5933f691a2 Add merge slots to Bignum files 
Legacy Bignum is excluded as it doesn't get regular extensions like new
ones.

Each slot uses comments of their respective filetype. Since .data files
don't have a syntax for comments, dummy test cases are used. (These test
cases will never be executed and no noise will be added to tests.)

Signed-off-by: Janos Follath <janos.follath@arm.com>
 2022-11-02 17:27:25 +00:00
Gilles Peskine
909e03c52f Bignum core: fill_random: prototype 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2022-11-02 15:59:16 +01:00
Janos Follath
8904a2db29 mpi_core_ct_uint_table_lookup: style and docs 
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2022-10-31 16:51:56 +00:00
Janos Follath
e50f2f1a8e Add mbedtls_mpi_core_ct_uint_table_lookup 
This will be needed for extracting modular exponentiation from the
prototype. The function signature is kept aligned to the prototype, but
the implementation is new. (The implementation of this function in the
prototype has further optimisations which are out of scope for now.)

The function is not reused in the bignum counterpart as it will become
redundant soon.

This function is meant to be static, but doesn't have the qualifier as
it is not used yet and would cause compiler warnings. The
MBEDTLS_STATIC_TESTABLE macro will be added in a later commit.

Signed-off-by: Janos Follath <janos.follath@arm.com>
 2022-10-31 11:32:55 +00:00
Gilles Peskine
9603daddaa
Merge pull request #6230 from tom-cosgrove-arm/issue-6223-core-add 
Bignum: extract core_add from the prototype
 2022-10-27 11:25:27 +02:00
Tom Cosgrove
82f131063a Update documentation following review comment 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-10-25 16:29:58 +01:00
Tom Cosgrove
af7d44b4d2 Tidy up, remove MPI_CORE(), apply the naming convention, and use the new mbedtls_mpi_core_add() 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-10-25 16:29:58 +01:00
Hanno Becker
c98871339d Extract MPI_CORE(add) from the prototype 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-10-25 16:29:58 +01:00
Minos Galanakis
a081c51cd3 Renamed mpi_core_get_mont_R2_unsafe_neg -> mpi_core_get_mont_r2_unsafe_neg 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-10-25 15:12:38 +01:00
Minos Galanakis
51d638baf6 bignum_core: Style update 
'mbedtls_mpi_core_get_mont_R2_unsafe' aligns const
keyword to match the style of the rest of the module.

Documentation is also updated to remove
`MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED`.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-10-25 15:12:38 +01:00
Minos Galanakis
ae4fb671b4 mbedtls_mpi_core_get_mont_R2_unsafe: Removed NULL input checking 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-10-25 15:12:38 +01:00
Minos Galanakis
b85506e250 bignum_core.h: Comment update for mbedtls_mpi_core_get_mont_R2_unsafe 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-10-25 15:12:23 +01:00
Minos Galanakis
4f43f61c6a Renamed mbedtls_mpi_get_montgomery_constant_unsafe to mpi_core_get_mont_R2_unsafe 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-10-25 15:12:23 +01:00
Hanno Becker
ec440f2397 bignum_mod_raw: Ported mbedtls_mpi_get_montgomery_constant_unsafe from prototype 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-10-25 15:08:08 +01:00