Add an optimized 32-bit implementation of the NIST P-256 elliptic curve.

mozilla/security/nss/lib/freebl/ecl/ecl-priv.h

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #ifndef __ecl_priv_h_
 #define __ecl_priv_h_
 
 #include "ecl.h"
 #include "mpi.h"
 #include "mplogic.h"
@@ skipping 218 matching lines @@
 /* Optimized field arithmetic */
 mp_err ec_group_set_gfp192(ECGroup *group, ECCurveName);
 mp_err ec_group_set_gfp224(ECGroup *group, ECCurveName);
 mp_err ec_group_set_gfp256(ECGroup *group, ECCurveName);
 mp_err ec_group_set_gfp384(ECGroup *group, ECCurveName);
 mp_err ec_group_set_gfp521(ECGroup *group, ECCurveName);
 mp_err ec_group_set_gf2m163(ECGroup *group, ECCurveName name);
 mp_err ec_group_set_gf2m193(ECGroup *group, ECCurveName name);
 mp_err ec_group_set_gf2m233(ECGroup *group, ECCurveName name);
 
+/* Optimized point multiplication */

[wtc, 2013/01/27 00:11:17]

agl: since your code is used to override these three methods:
base_point_mul, point_mul, points_mul
I am describing it as "optimized point multiplication" in
comments. I hope that is accurate.

+mp_err ec_group_set_gfp256_32(ECGroup *group, ECCurveName name);
+
 /* Optimized floating-point arithmetic */
 #ifdef ECL_USE_FP
 mp_err ec_group_set_secp160r1_fp(ECGroup *group);
 mp_err ec_group_set_nistp192_fp(ECGroup *group);
 mp_err ec_group_set_nistp224_fp(ECGroup *group);
 #endif
 
 #endif                                                  /* __ecl_priv_h_ */