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Author SHA1 Message Date
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 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
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
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
Gabor Mezei 7097447b84
Ensure input parameter size for Koblitz reduction 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-26 14:08:35 +02:00
Gabor Mezei 8183c5dcc3
Use core API in ecp_mod_koblitz() 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-26 14:03:29 +02:00
Janos Follath 91a618375a
Merge pull request #7427 from minosgalanakis/ecp/7258_ecp_mod_p256K1_add_test_cases 
ECP: Add Unit Tests for secp256k1
 2023-04-26 08:52:24 +01:00
Minos Galanakis 9c2c81f996 ecp_curves: Renamed ecp_mod_p256k1 -> mbedtls_ecp_mod_p256k1 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-04-25 13:30:59 +01:00
Minos Galanakis d6751dcd8b ecp_curves: Added unit-tests for secp256k1 
This patch introduces basic unit-testing for the `ecp_mod_p256k1()`.

The method is exposed through the ecp_invasive interface, and
the standard testing data is being provided by the python framework.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-04-25 13:30:59 +01:00
Gabor Mezei f921f4d228
Use loop for two passes in the reduction 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-21 14:09:06 +02:00
Minos Galanakis 9d80879f90 ecp_curves: Introduced mbedtls_ecp_mod_p224k1() 
This patch introduces a `MBEDTLS_STATIC_TESTABLE` helper
method which exposes `ecp_mod_p256k1()` to the test-framework

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-04-18 14:13:20 +01:00
Minos Galanakis e5dab975c6 ecp_curves: Added unit-tests for secp224k1 
This patch introduces basic unit-testing for the `ecp_mod_p224k1()`.

The method is exposed through the ecp_invasive interface, and
the standard testing data is being provided by the python framework.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-04-18 14:13:20 +01:00
Janos Follath 3c3b94a31b
Merge pull request #7424 from gabor-mezei-arm/7256_unit_tests_for_p192k1 
Add unit tests for ecp_mod_p192k1()
 2023-04-18 12:19:40 +01:00
Gabor Mezei 0a11ee6da8
Fix function declaration 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-13 12:48:06 +02:00
Gabor Mezei 83669d910e
Add a testable function for ecp_mod_p192k1 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-04-13 12:44:37 +02:00
Valerio Setti d4a5d461de library: add remaining changes for the new ECP_LIGHT symbol 
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
 2023-04-11 11:33:50 +02:00
Janos Follath 44c6694be7
Merge pull request #7351 from gabor-mezei-arm/7109_ecp_fast_reduction_testing 
Test unlikely cases of ECC modular reduction
 2023-04-06 15:55:19 +01:00
Gabor Mezei df9c029dd5
Remove obsolete ecp_fix_negative function 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-03-28 18:43:07 +02:00
Gabor Mezei 514806bbe9
Add a second round of carry reduction for P192 fast reduction 
The first round of carry reduction can generate a carry so a
second round is needed.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-03-28 15:09:34 +02:00
Minos Galanakis 68d64a10b6 ecp_curves: Re-introduced mbedtls_ecp_fix_negative() 
This patch re-introduces `mbedtls_ecp_fix_negative` and
appropriately adjusts its' define guards.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-03-22 11:28:15 +00:00
Minos Galanakis 37f4cb6d0e ecp_curves: Minor rework for p384 
This patch adjusts formatting, documentation and testing.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-03-21 15:46:50 +00:00
Minos Galanakis 6fb105fb2e ecp_curves: Ported prototypes 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-03-21 15:41:26 +00:00
Janos Follath c18cd0c8e6
Merge pull request #7230 from gabor-mezei-arm/6850_Secp256r1_fast_reduction 
Extract Secp256r1 fast reduction from the prototype
 2023-03-16 19:43:25 +00:00
Gabor Mezei e4710ae9ed
Add and fix comments 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-03-09 13:43:02 +01:00