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Author SHA1 Message Date
Dave Rodgman
16799db69a update headers 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-11-02 19:47:20 +00:00
Janos Follath
f2334b7b39 Remove new bignum when not needed 
New bignum modules are only needed when the new ecp_curves module is
present. Remove them when they are not needed to save code size.

Signed-off-by: Janos Follath <janos.follath@arm.com>
 2023-08-17 14:36:59 +01:00
Dave Rodgman
c98f8d996a
Merge branch 'development' into safer-ct5 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
 2023-08-07 11:47:35 +01:00
Tom Cosgrove
ca8c61b815 Provide and use internal function mbedtls_zeroize_and_free() 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2023-07-17 15:17:40 +01:00
Dave Rodgman
9fbb0cf08e Merge remote-tracking branch 'origin/development' into safer-ct5 2023-06-28 18:52:02 +01:00
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
53a16b3fb5 bignum_mod_raw: Updated documentation for mpi_mod_raw_mul 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-26 20:06:36 +01:00
Minos Galanakis
8eb6104256 bignum_mod_raw: Fixed a documentation typo. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-26 10:03:19 +01:00
Minos Galanakis
c7408a432e bignum_mod_raw: Adjusted OPT_RED limb size requirements for mod_raw_mul(). 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-25 21:14:44 +01:00
Minos Galanakis
7b1093240c bignum_mod_raw: Updated documentation for mbedtls_mpi_mod_raw_mul 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-22 16:52:20 +01:00
Minos Galanakis
2ed8fb7e4f ecp_mod_raw: Enabled fast reduction. 
This patch modifies `mbedtls_mpi_mod_raw_mul`
to utilise fast-reduction when available.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-06-22 16:35:30 +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
Minos Galanakis
00bd8925a7 bignum: Removed merge scaffolding. 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2023-04-05 16:13:11 +01:00
Gilles Peskine
470f10cfc5
Merge pull request #6941 from gabor-mezei-arm/6375_quasi-reduction_function 
Add function to fix quasi-reduction
 2023-01-31 11:25:25 +01:00
Gabor Mezei
9a66ab180c
Fix missing declarration 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-01-25 13:23:38 +01:00
Gabor Mezei
627e5b1f91
Only enable fix_quasi_reduction when testing 
Avoid compiler error due to the fix_quasi_reduction function
is static and has not been used.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-01-24 18:13:24 +01:00
Gabor Mezei
9073f7dd3b
Remove unneeded check 
The fix_quasi_reduction function changed to static so checking the
invalid arguments are not needed anymore.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-01-23 19:05:37 +01:00
Gabor Mezei
aaa1d2a276
Move the quasi reduction fixing function to bignum_mod_raw 
Rename the function to 'fix_quasi_reduction' to better suite its functionality.
Also changed the name prefix to suite for the new module.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2023-01-23 18:55:57 +01:00
Mihir Raj Singh
432cacf5c2 bignum_mod_raw: Renamed m -> N in mbedtls_mpi_mod_raw_neg() 
Signed-off-by: Mihir Raj Singh <mihirrajsingh123@gmail.com>
 2023-01-17 11:25:26 +05:30
Mihir Raj Singh
b0354c5b71 bignum_mod_raw: Renamed m -> N in mbedtls_mpi_mod_raw_from_mont_rep() 
Signed-off-by: Mihir Raj Singh <mihirrajsingh123@gmail.com>
 2023-01-16 23:11:18 +05:30
Mihir Raj Singh
37ece7292a bignum_mod_raw: Renamed m -> N in mbedtls_mpi_mod_raw_to_mont_rep() 
Signed-off-by: Mihir Raj Singh <mihirrajsingh123@gmail.com>
 2023-01-16 23:10:40 +05:30
Mihir Raj Singh
01e861ff9e bignum_mod_raw: Renamed m -> N in mbedtls_mpi_mod_raw_write() 
Signed-off-by: Mihir Raj Singh <mihirrajsingh123@gmail.com>
 2023-01-16 23:10:00 +05:30
Mihir Raj Singh
cd17ff0354 bignum_mod_raw: Renamed m -> N in mbedtls_mpi_mod_raw_read() 
Signed-off-by: Mihir Raj Singh <mihirrajsingh123@gmail.com>
 2023-01-16 23:09:12 +05:30
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
Manuel Pégourié-Gonnard
2fcb4c1d06
Merge pull request #6747 from gilles-peskine-arm/bignum-mod-random 
Bignum mod random
 2022-12-23 10:36:22 +01:00
Gilles Peskine
e1d8326e90 Fix representation of mod-random output 
mbedtls_mpi_mod_raw_random() and mbedtls_mpi_mod_random() were producing
output in the Montgomery representation, instead of obeying the
representation chosen in the modulus structure. Fix this.

Duplicate the test cases for mod-random output to have separate test cases
for each representation.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2022-12-20 20:28:02 +01:00
Gilles Peskine
1e2a4d4089 Functions to convert raw residues to/from the modulus representation 
Test cases will be generated automatically by a subsequent commit.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2022-12-20 19:55:51 +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
Gilles Peskine
a57cf9813a Implement and test mbedtls_mpi_mod_raw_random 
In the basic/XXX=core test cases, use odd upper bounds, because the mod
version of random() only supports odd upper bounds (the upper bound is a
modulus and the mod modules only support odd moduli).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
 2022-12-16 10:13:29 +01:00
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
Gabor Mezei
979d34ca7d
Add mod_raw_mul function 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2022-12-15 15:04:20 +01:00
Manuel Pégourié-Gonnard
48232ed2c1
Merge pull request #6743 from minosgalanakis/bignum/implement_modular_negation 
Bignum: Implement fixed width modular negation
 2022-12-13 09:54:38 +01:00
Minos Galanakis
21fe8bdeac bignum_mod_raw: Added modular negation. 
This patch adds the `mpi_mod_raw_neg()` method.

Co-authored-by: Hanno Becker <hanno.becker@arm.com>
Co-authored-by: Minos Galanakis <minos.galanakis@arm.com>

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-12-12 11:13:56 +00:00
Tom Cosgrove
5f09930017 Clarify use of temporary in mbedtls_mpi_mod_raw_inv_prime() 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-09 10:58:15 +00:00
Tom Cosgrove
6129268fee Bignum: Implement mbedtls_mpi_mod_raw_inv_prime() and tests 
Fixes #6023.

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-12-08 09:44:10 +00:00
Janos Follath
d3eed33709 Bignum Mod Raw: pass endianness as a parameter 
The external representation before included more than just endianness
(like reading in Mongtomery curve scalars or converting hashes to
numbers in a standard compliant way).

These are higher level concepts and are out of scope for Bignum and for
the modulus structure.

Passing endianness as a parameter is a step towards removing it from the
modulus structure.

Signed-off-by: Janos Follath <janos.follath@arm.com>
 2022-11-25 17:55:00 +00:00
Janos Follath
590ae5363d
Merge pull request #6656 from tom-cosgrove-arm/bignum_pr_6225-updated 
Bignum: add mod_raw_add
 2022-11-25 17:53:31 +00:00
Werner Lewis
e4c0a6c3ba Change cast to correct type 
Signed-off-by: Werner Lewis <werner.lewis@arm.com>
 2022-11-24 16:18:06 +00:00
Werner Lewis
1a277d9ad6 Replace comparison with XOR 
Signed-off-by: Werner Lewis <werner.lewis@arm.com>
 2022-11-24 16:18:06 +00:00
Werner Lewis
d391b8ce61 Change types and move const before type 
Signed-off-by: Werner Lewis <werner.lewis@arm.com>
 2022-11-24 16:18:06 +00:00
Werner Lewis
9fa91ebcb9 Use modulus structure in mbedtls_mpi_mod_raw_add 
Signed-off-by: Werner Lewis <werner.lewis@arm.com>
 2022-11-24 16:18:06 +00:00
Werner Lewis
0eea827cbd Rename MPI_CORE(add_mod) to mbedtls_mpi_mod_raw_add 
Signed-off-by: Werner Lewis <werner.lewis@arm.com>
 2022-11-24 16:18:06 +00:00
Hanno Becker
a45b6fee91 Extract MPI_CORE(add_mod) from the prototype 
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
 2022-11-24 16:17:49 +00:00
Gabor Mezei
3411e949cd
Cas variable to proper type 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2022-11-23 14:44:13 +01:00
Gabor Mezei
4c7cf7d742
Add low level subtraction with modulus 
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
 2022-11-23 14:44:07 +01:00
Minos Galanakis
d9299c388e bignum_mod_raw: Refactored Montgomery conversion functions 
This patch updates the `mbedtls_mpi_mod_raw_conv_xx()` methods
as follows:

* Renamed for simplicity: conv_fwd -> from_mont_rep, conv_inv -> to_mont_rep.
* Uncoupled the dependency on the legaly bignum interface.
* `mbedtls_mpi` is no longer used for temporary buffer allocation.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-11-11 10:54:58 +00:00
Hanno Becker
5ad4a93596 bignum_mod_raw: Added conversion methods for internal/public data representation 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
 2022-11-11 10:54:58 +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
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