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198 commits

Author SHA1 Message Date
Minos Galanakis
c4e4958326 ecp_curves: Adjusted expected_width inputs to use BITS_TO_LIMBS macro. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-27 14:07:07 +01:00
Minos Galanakis
25d998b3b9 ecp_curves: Fixed modp pointers on mbedtls_ecp_modulus_setup. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-25 21:08:58 +01:00
Paul Elliott
3048c8c906
Merge pull request #7725 from minosgalanakis/ecp/7268_add_optimised_reduction_setup_3 
[Bignum] Add optimised reduction setup
 2023-06-22 16:30:39 +01:00
Minos Galanakis
2a03fd3b7b bignum_mod: Added a typedef for OPT_RED function pointer. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-22 09:14:28 +01:00
Paul Elliott
215ed131cf Fix 32 bit unreachable code build failure 
Given the size of ciL is set dependant on MBEDTLS_HAVE_INT32 /
MBEDTLS_HAVE_INT64, clang rightfully reports this as unreachable code in
32 bit builds. Fix this by using #define guards instead.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-06-20 17:55:15 +01:00
Minos Galanakis
de87461c23 ecp_curves: Updated the optimised reduction function pointer. 
This patch modifies the `mbedtls_mpi_opt_red_struct` to use an
mpi_uint * pointer and size_t limps arguments.

The methods interacting with this pointer have been updated
accordingly:

- mbedtls_mpi_mod_optred_modulus_setup
- mbedtls_ecp_modulus_setup

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-16 13:48:47 +01:00
Minos Galanakis
65210952ec ecp_curves: Updated mbedtls_ecp_modulus_setup to use optimised reduction. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-16 13:48:47 +01:00
Minos Galanakis
1d3e332986 ecp_curves: Updated input argument for mbedtls_ecp_modulus_setup. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-16 13:48:47 +01:00
Minos Galanakis
88e16dfa2a bignum_mod: Refactored mbedtls_mpi_mod_modulus_setup() 
This patch removes the `int_rep` input parameter for modular
setup, aiming to align it with the optred variant.

Test and test-suite helper functions have been updated
accordingly.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-16 13:48:47 +01:00
Paul Elliott
a2e48f751b Split out mbedtls_ecp_mod_p448_raw() 
Switch testing over to using the generic raw functions.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-06-15 17:16:38 +01:00
Paul Elliott
b4df176610
Merge pull request #7637 from paul-elliott-arm/fixed_ecp_mod_p448 
[Bignum] Fixed width for ecp mod p448
 2023-06-15 17:12:02 +01:00
Paul Elliott
bed9ac7b2d Optimise final 2 rounds 
Final two rounds logic could be significantly simplified.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-06-14 19:20:33 +01:00
Paul Elliott
b8f7305b02 Replace sizeof(mbedtls_mpi_uint) with ciL define 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-06-14 17:52:42 +01:00
Paul Elliott
3646dc78bc Fix coding style issue 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-06-14 08:51:08 +01:00
Paul Elliott
436f2ad37c Three round solution 
Attempt to fix failing test by dealing with overflow with three rounds,
instead of previous subtract modulus solution. Also optimise out shifts
by using memcpy / memmove instead. Remove final sub to return canonical
result, as this is not required here.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-06-13 17:39:44 +01:00
Xiaokang Qian
fcdd0477b3 Replace loop zeroise with memset 
Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
 2023-06-08 10:03:53 +00:00
Janos Follath
035e5fc885 Add comments to 448 optimised reduction 
Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-06-08 09:44:30 +00:00
Paul Elliott
805a0a2d06
Merge pull request #7591 from minosgalanakis/ecp/6028_xtract_fast_reduction_curve25519 
[Bignum] Implement fast reduction curve25519
 2023-06-01 17:43:35 +01:00
Paul Elliott
edc97680d5 Fix output width of mbedtls_ecp_mod_p448() to 448 bits 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-05-25 17:37:58 +01:00
Paul Elliott
981d8b6fc7
Merge pull request #7566 from paul-elliott-arm/core_ecp_mod_p448 
[Bignum] Convert ecp_mod_p448 over to using core functions
 2023-05-25 17:11:57 +01:00
Paul Elliott
7050662a48 Correct comment header block 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-05-24 17:31:57 +01:00
Minos Galanakis
e72bf2da3d ecp_curves: Adjusted the expected limb size for ecp_mod_p255(). 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-24 15:13:42 +01:00
Paul Elliott
3b6bf105d1 Fix missed renames from N to X 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-05-23 17:51:52 +01:00
Minos Galanakis
ec00b500b5 ecp_curves: Adjusted input checking for ecp_mod_p255. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-23 17:31:01 +01:00
Minos Galanakis
d6beda7af9 ecp_curves: Extended documentation for CURVE25519. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-23 09:57:09 +01:00
Minos Galanakis
47249fd9ec ecp_curves: Added documentation for mbedtls_ecp_mod_p255_raw 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-23 09:57:09 +01:00
Minos Galanakis
31f0b452c7 ecp_curves: Reintroduced input checking for 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-23 09:57:09 +01:00
Minos Galanakis
65c386ee3d ecp_curves: Switched to dynamic memory for 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-23 09:57:09 +01:00
Minos Galanakis
2daa374ea8 ecp_curves: Minor refactoring of mbedtls_ecp_mod_p255_raw() 
* Fixed whitespace issues.
* Renamed variables to align with bignum conventions.
* Updated alignment on test input data.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-23 09:57:09 +01:00
Minos Galanakis
d0292c2aca ecp_curves: Refactored mbedtls_ecp_mod_p255. 
This patch introduces following methods, as implemented in the
design prototype, and updates them to utilise the _core methods
available for multiplication and addition.
* `mbedtls_ecp_mod_p255()`
* `mbedtls_ecp_mod_p255_raw()`

An entry has been exposed in the `ecp_invasive.h` header
to facilitate testing.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-05-22 22:22:32 +01:00
Gabor Mezei
d56e6e008b
Add input parameter length check for the Koblitz reduction 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-17 17:51:19 +02:00
Paul Elliott
c05f51ded9 Convert comments over to X rather than N 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-05-17 14:29:44 +01:00
Paul Elliott
6b1f7f101f Use const where appropriate 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-05-16 17:51:48 +01:00
Paul Elliott
235c1947fb Group memory allocations earlier 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-05-16 17:51:48 +01:00
Paul Elliott
34b08e5005 Convert over to using X, X_limbs 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-05-16 17:51:48 +01:00
Paul Elliott
4fa8334bae Convert curve 448 to use ecp core functions 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-05-16 17:51:48 +01:00
Gabor Mezei
caac83c517
Fix comment 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-16 17:41:26 +02:00
Gabor Mezei
03558b847e
Add _raw function to P256K1 
Modified the testing to use the generic fast reduction test function.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-16 17:30:03 +02:00
Gabor Mezei
e42bb6294e
Add _raw function to P224K1 
Modified the testing to use the generic fast reduction test function.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-16 17:30:03 +02:00
Gabor Mezei
dacfe56370
Add _raw function to P192K1 
Modified the testing to use the generic fast reduction test function.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-16 17:29:57 +02:00
Gabor Mezei
a274041190
Fix comment 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-15 14:50:17 +02:00
Gabor Mezei
b6653f3e27
Update comments 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-12 12:34:12 +02:00
Gabor Mezei
dcaf99ebb8
Add another round in the Koblitz reduction 
The addition can result in an overflow so another round is needed
in the reduction.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-12 12:34:05 +02:00
Paul Elliott
481a6a8edb
Merge pull request #7482 from gabor-mezei-arm/6029_use_core_api_in_ecp_mod_koblitz 
[Bignum] Use core API in ecp_mod_koblitz()
 2023-05-10 17:24:46 +01:00
Gabor Mezei
908f40014c
Determine special cases in-place in the common Koblitz function 
Remove parameter used by the special cases and check for special cases in-place.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-05-05 16:31:19 +02:00
Paul Elliott
47a3c82118 Enable curve 448 to be tested 
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
 2023-04-26 22:23:13 +01:00
Gabor Mezei
19c6f47dbc
Allocate the right amount of memory 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-26 15:22:11 +02:00
Gabor Mezei
fead53311b
Remove unused macro 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-26 15:20:01 +02:00
Gabor Mezei
03367fe42d
Ignore carry since it can not be generated 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-26 14:08:45 +02:00
Gabor Mezei
d2c0ba172c
Fix value in comment 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-26 14:08:44 +02:00