| //** github.com/glycerine/fast-elliptic-curve-p256 **// |
| |
| {{Types "Apache-2.0"}} |
| |
| ############################################################################## |
| # # |
| # Portions Copyright (c) 2015 Intel Corporation # |
| # Portions Copyright (c) 2015 CloudFlare, Inc. # |
| # All rights reserved. # |
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| # This software is made available to you under your choice of the # |
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| # # |
| # Licensed under the Apache License, Version 2.0 (the "License"); # |
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| # http://www.apache.org/licenses/LICENSE-2.0 # |
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| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # |
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| # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR# |
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| # # |
| ############################################################################## |
| # Developers and authors: # |
| # Shay Gueron (1, 2), and Vlad Krasnov (1, 3) # |
| # (1) Intel Corporation, Israel Development Center # |
| # (2) University of Haifa # |
| # (3) CloudFlare, Inc. # |
| # Reference: # |
| # S.Gueron and V.Krasnov, "Fast Prime Field Elliptic Curve Cryptography with# |
| # 256 Bit Primes" # |
| # https://eprint.iacr.org/2013/816.pdf # |
| ############################################################################## |
| |
| # Further optimization by <appro@openssl.org>: |
| # |
| # this/original with/without -DECP_NISTZ256_ASM(*) |
| # Opteron +12-49% +110-150% |
| # Bulldozer +14-45% +175-210% |
| # P4 +18-46% n/a :-( |
| # Westmere +12-34% +80-87% |
| # Sandy Bridge +9-35% +110-120% |
| # Ivy Bridge +9-35% +110-125% |
| # Haswell +8-37% +140-160% |
| # Broadwell +18-58% +145-210% |
| # Atom +15-50% +130-180% |
| # VIA Nano +43-160% +300-480% |
| # |
| # (*) "without -DECP_NISTZ256_ASM" refers to build with |
| # "enable-ec_nistp_64_gcc_128"; |
| # |
| # Ranges denote minimum and maximum improvement coefficients depending |
| # on benchmark. Lower coefficients are for ECDSA sign, relatively fastest |
| # server-side operation. Keep in mind that +100% means 2x improvement. |
| */ |
