146 Commits

Author	SHA1	Message	Date
Manuel Pégourié-Gonnard	79f73b96d9	Remove bias in EC private key generation	2014-01-06 10:19:35 +01:00
Paul Bakker	c73879139e	Merged ECP memory usage optimizations	2013-12-31 10:33:47 +01:00
Manuel Pégourié-Gonnard	26bc1c0f5d	Fix a few unchecked return codes in EC	2013-12-30 19:33:33 +01:00
Manuel Pégourié-Gonnard	9e4191c3e7	Add another option to reduce EC memory usage ... Also document speed/memory trade-offs better.	2013-12-30 19:16:05 +01:00
Paul Bakker	ec4bea7eee	Forced cast to unsigned int for %u format in ecp_selftest()	2013-12-30 19:04:47 +01:00
Manuel Pégourié-Gonnard	1f789b8348	Lessen peak memory usage in EC by freeing earlier ... Cuts peak usage by 25% :)	2013-12-30 17:36:54 +01:00
Manuel Pégourié-Gonnard	72c172a13d	Save some small memory allocations inside ecp_mul()	2013-12-30 16:04:55 +01:00
Paul Bakker	92bcadb110	Removed 'z' length modifier from low-value size_t in ecp_selftest()	2013-12-30 15:37:17 +01:00
Manuel Pégourié-Gonnard	1f82b041e7	Adapt ecp_group_free() to static constants	2013-12-17 11:27:20 +01:00
Manuel Pégourié-Gonnard	73cc01d7fa	Remove last non-static parts of known EC groups	2013-12-17 11:27:20 +01:00
Manuel Pégourié-Gonnard	731d08b406	Start using constants from ROM for EC groups	2013-12-17 11:27:20 +01:00
Manuel Pégourié-Gonnard	93f41dbdfd	Fix possible issue in corner-case for ecp_mul_mx()	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	7a949d3f5b	Update comments	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	d962273594	Add #ifdef's for curve types	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	7c94d8bcab	WIP #ifdef's	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	b6f45a616c	Avoid potential leak in ecp_mul_mxz()	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	97871ef236	Some operations are not supported with Curve25519	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	357ff65a51	Details in ecp_mul_mxz()	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	fe0af405f9	Adapt ecp_gen_keypair() to Curve25519	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	a0179b8c4a	Change ecp_mul to handle Curve25519 too	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	312d2e8ea2	Adapt key checking functions for Curve25519	2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard	3afa07f05b	Add coordinate randomization for Curve25519	2013-12-05 15:58:37 +01:00
Manuel Pégourié-Gonnard	d9ea82e7d9	Add basic arithmetic for Curve25519	2013-12-05 15:58:37 +01:00
Manuel Pégourié-Gonnard	3c0b4ea97e	Rename a few functions	2013-12-05 15:58:37 +01:00
Manuel Pégourié-Gonnard	d5e0fbe1a3	Remove now useless function	2013-12-02 17:20:39 +01:00
Manuel Pégourié-Gonnard	32b04c1237	Split ecp.c	2013-12-02 16:36:11 +01:00
Manuel Pégourié-Gonnard	43863eeffc	Declare internal variables static in ecp.c	2013-12-02 16:34:24 +01:00
Manuel Pégourié-Gonnard	d35e191434	Drop useless include in ecp.c	2013-12-02 16:34:24 +01:00
Manuel Pégourié-Gonnard	0267e3dc9b	Add ecp_curve_info_from_name()	2013-11-30 15:10:14 +01:00
Manuel Pégourié-Gonnard	104ee1d1f6	Add ecp_genkey(), prettier wrapper	2013-11-30 14:35:07 +01:00
Manuel Pégourié-Gonnard	c57b654a3e	Use t_uint rather than uintXX_t when appropriate	2013-11-26 15:19:56 +01:00
Manuel Pégourié-Gonnard	96c7a92b08	Change mpi_safe_cond_assign() for more const-ness	2013-11-25 18:28:53 +01:00
Manuel Pégourié-Gonnard	918148193d	Enhance ecp_selftest	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	d728350cee	Make memory access pattern constant	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	aade42fd88	Change method for making M odd in ecp_mul() ... - faster - avoids M >= N (if m = N-1 or N-2)	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	36daa13d76	Misc details	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	469a209334	Rm subtraction from ecp_add_mixed()	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	01fca5e882	Do point inversion without leaking information	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	44aab79022	Update bibliographic references	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	7f762319ad	Use mpi_shrink() in ecp_precompute()	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	e282012219	Spare some memory	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	edc1a1f482	Small code cleanups	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	ff27b7c968	Tighten ecp_mul() validity checks	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	09ceaf49d0	Rm multiplication using NAF ... Comb method is at most 1% slower for random points, and is way faster for fixed point (repeated).	2013-11-21 21:56:38 +01:00
Manuel Pégourié-Gonnard	04a0225388	Optimize w in the comb method	2013-11-21 21:56:37 +01:00
Manuel Pégourié-Gonnard	70c14372c6	Add coordinate randomization back	2013-11-21 21:56:37 +01:00
Manuel Pégourié-Gonnard	c30200e4ce	Fix bound issues	2013-11-21 21:56:37 +01:00
Manuel Pégourié-Gonnard	101a39f55f	Improve comb method (less precomputed points)	2013-11-21 21:56:37 +01:00
Manuel Pégourié-Gonnard	d1c1ba90ca	First version of ecp_mul_comb()	2013-11-21 21:56:20 +01:00
Paul Bakker	6a6087e71d	Added missing inline definition for MSCV and ARM environments	2013-10-28 18:53:08 +01:00