Opened 7 months ago

Closed 7 months ago

#14461 closed enhancement (fixed)


Reported by: Douglas R. Reno Owned by: Douglas R. Reno
Priority: normal Milestone: 10.1
Component: BOOK Version: SVN
Severity: normal Keywords:


New minor version

NEWS for the Nettle 3.7 release

	This release adds one new feature, the bcrypt password hashing
	function, and lots of optimizations. There's also one
	important change to how Nettle is configured: Fat builds are
	now on by default.

	The release adds PowerPC64 assembly for a few algorithms,
	resulting in great speedups. Benchmarked on a Power9 machine,
	speedup was 13 times for AES256-CTR and AES256-GCM, and 3.5
	times for Chacha. For fat builds (now the default), the new
	code is used automatically, on processors supporting the needed
	instruction set extensions.

	The new version is intended to be fully source and binary
	compatible with Nettle-3.6. The shared library names are and, with sonames and

	New features:

	* Support for bcrypt, contributed by Stephen R. van den Berg.


	* Much faster AES and GCM on PowerPC64 processors supporting
	  the corresponding crypto extensions. Contributed by Mamone

	* Speed of Chacha improved on PowerPC64, x86_64 and ARM Neon.

	* Speed of Salsa20 improved on x86_64 and ARM Neon.

	* Overhaul of some elliptic curve primitives, improving ECDSA
	  signature speed.


	* Fat builds are enabled by default on the architectures where
	  it is supported (x86_64, arm and powerpc64). To disable
	  runtime selection, and instead specify the processor flavor
	  at configure time, you need to pass --disable-fat to the
	  configure script.

	Known issues:

	* The ARM assembly code in this release doesn't work correctly
	  on big-endian ARM systems. This will hopefully be fixed in a
	  later release.


	* Use a few more gmp-6.1 functions: mpn_cnd_add_n,
	  mpn_cnd_sub_n, mpn_cnd_swap. Delete corresponding internal
	  Nettle functions.

	* Convert all assembly files to use the default m4 quote

Change History (2)

comment:1 by Douglas R. Reno, 7 months ago

Owner: changed from blfs-book to Douglas R. Reno
Status: newassigned

comment:2 by Douglas R. Reno, 7 months ago

Resolution: fixed
Status: assignedclosed

Fixed at r24070

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