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Michael Brown 83ac98ce22 [crypto] Use Montgomery reduction for modular exponentiation 
Speed up modular exponentiation by using Montgomery reduction rather
than direct modular reduction.

Montgomery reduction in base 2^n requires the modulus to be coprime to
2^n, which would limit us to requiring that the modulus is an odd
number.  Extend the implementation to include support for
exponentiation with even moduli via Garner's algorithm as described in
"Montgomery reduction with even modulus" (Koç, 1994).

Since almost all use cases for modular exponentation require a large
prime (and hence odd) modulus, the support for even moduli could
potentially be removed in future.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
 		2024-11-28 15:06:01 +00:00
.github/workflows [ci] Update action versions to silence GitHub warnings 2024-03-07 23:25:35 +00:00
contrib [cloud] Add ability to delete old AMI images 2024-09-09 15:02:27 +01:00
src [crypto] Use Montgomery reduction for modular exponentiation 2024-11-28 15:06:01 +00:00
COPYING [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.GPLv2 [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.UBDL [legal] Add support for the Unmodified Binary Distribution Licence 2015-03-02 12:07:14 +00:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README 

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org