From: Niels Möller <nisse@lysator.liu.se>
Date: Wed, 14 Mar 2018 18:25:42 +0000 (+0100)
Subject: Merge branch 'ecc-params-tweak' into master-updates
X-Git-Tag: nettle_3.5rc1~78
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f46ea65935b442ce528c229e2995cbd813e7783;p=thirdparty%2Fnettle.git

Merge branch 'ecc-params-tweak' into master-updates
---

3f46ea65935b442ce528c229e2995cbd813e7783
diff --cc ChangeLog
index 829ad0ab,f2fd0904..5c5c3aea
--- a/ChangeLog
+++ b/ChangeLog
@@@ -1,20 -1,28 +1,45 @@@
+ 2018-03-10  Niels Möller  <nisse@lysator.liu.se>
+ 
+ 	* eccdata.c (ecc_table_size): New helper function.
+ 	(ecc_pippenger_precompute): Display warning for poor parameters.
+ 
+ 	* eccparams.c (main): New program, to list parameter alternatives
+ 	for Pippenger's algorithm.
+ 
+ 	* Makefile.in: Tweak parameters for ecc tables.
+ 	(ecc-192.h): Change parameters from k = 7, c = 6 to k = 8, c = 6.
+ 	Reduces table size from 15 KB to 12 KB. Modest speedup, appr. 3%
+ 	for ecdsa signatures.
+ 	(ecc-224.h): Change parameters from k = 12, c = 6 to k = 16, c =
+ 	7. Table size unchanged (14 KB in 32-bit platforms, 18 KB on
+ 	64-bit platforms. Minor speedup, appr. 1% for ecdsa signatures.
+ 	(ecc-256.h): Change parameters from k = 14, c = 6 to k = 11, c =
+ 	6. Table size unchanged, 16 KB. 14% speedup for ecdsa signatures.
+ 	(ecc-384.h): Changed parameters from k = 41, c = 6 to k = 32, c =
+ 	6. Table size unchanged. 12% speedup for ecdsa signatures.
+ 	(ecc-521.h): Changed parameters from k = 56, c = 6 to k 44, c = 6.
+ 	Table size unchanged (17 KB on 32-bit platforms, 18 KB on 64-bit
+ 	platforms). 15% speedup for ecdsa signatures.
+ 	(ecc-255.h): Change parameters from k = 14, c = 6 to k = 11, c =
+ 	6. Table size unchanged, 16 KB. 24% speedup for eddsa signatures.
+ 
 +2018-03-14  Niels Möller  <nisse@lysator.liu.se>
 +
 +	Merge sha256 code using the x86_64 sha_ni instructions, starting
 +	2018-02-21.
 +
 +2018-03-11  Niels Möller  <nisse@lysator.liu.se>
 +
 +	* x86_64/fat/sha256-compress.asm: New file.
 +	* x86_64/fat/sha256-compress-2.asm: New file.
 +	* fat-x86_64.c (fat_init): Select plain x86_64 assembly version or
 +	sha_ni version for sha256_compress.
 +
 +2018-02-21  Niels Möller  <nisse@lysator.liu.se>
 +
 +	* x86_64/sha_ni/sha256-compress.asm: New implementation using sha_ni
 +	instructions.
 +
  2018-02-20  Niels Möller  <nisse@lysator.liu.se>
  
  	* testsuite/cmac-test.c (test_cmac_hash): Deallocate ctx properly.