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

nss.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'conditions': [
       ['OS=="ios"', {
         'exclude_nss_root_certs%': 0,
         'exclude_nss_libpkix%': 0,
@@ skipping 546 matching lines @@
         'mozilla/security/nss/lib/freebl/ecl/ec2.h',
         'mozilla/security/nss/lib/freebl/ecl/ecl-curve.h',
         'mozilla/security/nss/lib/freebl/ecl/ecl-exp.h',
         'mozilla/security/nss/lib/freebl/ecl/ecl-priv.h',
         'mozilla/security/nss/lib/freebl/ecl/ecl.c',
         'mozilla/security/nss/lib/freebl/ecl/ecl.h',
         'mozilla/security/nss/lib/freebl/ecl/ecl_curve.c',
         'mozilla/security/nss/lib/freebl/ecl/ecl_gf.c',
         'mozilla/security/nss/lib/freebl/ecl/ecl_mult.c',
         'mozilla/security/nss/lib/freebl/ecl/ecp.h',
+        'mozilla/security/nss/lib/freebl/ecl/ecp_256_32.c',
         'mozilla/security/nss/lib/freebl/ecl/ecp_aff.c',
         'mozilla/security/nss/lib/freebl/ecl/ecp_jac.c',
         'mozilla/security/nss/lib/freebl/ecl/ecp_jm.c',
         'mozilla/security/nss/lib/freebl/ecl/ecp_mont.c',
         'mozilla/security/nss/lib/freebl/ecl/ec_naf.c',
         'mozilla/security/nss/lib/freebl/gcm.c',
         'mozilla/security/nss/lib/freebl/gcm.h',
         'mozilla/security/nss/lib/freebl/jpake.c',
         'mozilla/security/nss/lib/freebl/md2.c',
         'mozilla/security/nss/lib/freebl/md5.c',
@@ skipping 580 matching lines @@
             '-Wno-incompatible-pointer-types',
             '-Wno-logical-op-parentheses',
             '-Wno-switch',
             '-Wno-tautological-compare',
           ],
         }],
       ],
     },
   ],
 }