33 commits

Author	SHA1	Message	Date
Henry de Valence	7f8b3fe594	Rename combine_coeffs to reduce	2017-03-13 16:38:05 -07:00
Henry de Valence	f16f5d1e73	Add minus_one for radix51	2017-03-13 16:38:05 -07:00
Henry de Valence	3eab4acbd8	Add p constant for subtraction	2017-03-13 16:38:05 -07:00
Henry de Valence	4ef22b679c	Implement sub_assign for radix_51	2017-03-13 16:38:05 -07:00
Henry de Valence	87001f9d6e	Add utility for extracting constants in the new repr	2017-03-13 16:38:05 -07:00
Henry de Valence	4db735ca44	Add subtraction stub	2017-03-13 16:38:05 -07:00
Henry de Valence	eb66088cb9	Add to/from bytes for radix 51	2017-03-13 16:38:05 -07:00
Henry de Valence	afd42a4628	More feature-gating	2017-03-13 16:38:05 -07:00
Henry de Valence	a884260341	Add radix_51 and radix_25_5 features and start feature-gating	2017-03-13 16:38:05 -07:00
Henry de Valence	3a55a2f410	Add a test for radix-51 multiplication	2017-03-13 16:36:32 -07:00
Henry de Valence	92bf47f990	Clean up field tests	2017-03-13 16:36:32 -07:00
Henry de Valence	97b60d61ab	draft of 64-bit multiplication	2017-03-13 16:36:32 -07:00
Isis Lovecruft	1f871ea0a0	Obsessive whitespace fix.	2017-03-10 02:36:01 +00:00
Henry de Valence	45fbcb45f6	First notes and code on Montgomery conversion	2017-02-27 13:41:50 -08:00
Henry de Valence	d450659b7f	Rewrite CompressedEdwardsY::decompress() to use FieldElement::sqrt_ratio	2017-02-22 20:59:51 -08:00
Henry de Valence	1febf3f753	Add an invsqrt_ratio function.	2017-02-22 20:59:50 -08:00
Henry de Valence	a202f36916	Rewrite invsqrt to avoid using an Option type.	2017-02-22 16:24:11 -08:00
Henry de Valence	a415caa9fb	Add a seperate invsqrt function. ... This code isn't constant-time, but maybe should be. However that would prevent a bunch of nice things (e.g., Option types). Probably good to think about this.	2017-02-21 13:38:58 -08:00
Henry de Valence	ee5958c407	Add is_[non]negative_decaf functions. ... Computes whether a point is nonnegative in the same way as Mike Hamburg's code.	2017-02-21 13:37:50 -08:00
Henry de Valence	3fc5f75300	Rename is_negative to is_negative_ed25519	2017-02-21 13:23:57 -08:00
Henry de Valence	cb4ff3097c	Add FieldElement::is_zero()	2017-02-21 13:23:10 -08:00
Isis Lovecruft	e4d041836e	Move load3 and load4 to new utils module and remove #[allow(dead_code)].	2017-02-21 06:15:08 +00:00
Isis Lovecruft	6f67a7d716	Rename util module to subtle. ... * CHANGE subtle module documentation slightly to clarify the module's purpose. * FIXES issue #25.	2017-02-21 06:01:22 +00:00
Isis Lovecruft	b1afdf5204	Implement CTEq for FieldElement.	2017-02-21 05:44:35 +00:00
Isis Lovecruft	51f59565f5	Typo fix; Negateable → Negatable. ... * Fixup on #22.	2017-02-21 04:15:15 +00:00
Henry de Valence	8a1c13ef49	Make a CTNegateable trait with a generic impl for better ergonomics	2017-02-20 15:30:59 -08:00
Henry de Valence	5f4de0074d	Add a conditional negation function.	2017-02-20 15:30:59 -08:00
Isis Lovecruft	5f70ab55f8	Obsessive compulsive whitespace fix.	2017-02-20 01:58:56 +00:00
Isis Lovecruft	d88b6c01c4	Merge remote-tracking branch 'tarcieri/no-std' into develop	2017-01-27 02:13:04 +00:00
Tony Arcieri	d08bc7395e	Add #![no_std] (fixes #16) ... Use ::core in lieu of ::std, allowing this crate to be usable in #![no_std] environments. Gates features that presently depend on ::std (presently just rand) behind a "std" cargo feature, which is enabled by default.	2017-01-18 15:16:01 -08:00
Henry de Valence	74049e039e	Make FieldElement's conditional_assign a trait impl	2017-01-06 12:34:57 -05:00
Henry de Valence	c92ebdd0ac	Remove unused conditional_choose function	2017-01-06 12:29:24 -05:00
Isis Lovecruft	387a56fe2c	Initial commit.	2016-12-08 05:12:00 +00:00