Date: Tue, 31 May 2016 10:44:54 -0400 From: Allan Jude <allanjude@freebsd.org> To: Ivan Klymenko <fidaj@ukr.net> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r301010 - in head/sys: cddl/contrib/opensolaris/common/zfs cddl/contrib/opensolaris/uts/common cddl/contrib/opensolaris/uts/common/fs/zfs cddl/contrib/opensolaris/uts/common/fs/zfs/sys ... Message-ID: <10b10f89-0212-2a9d-06ed-6477ef658962@freebsd.org> In-Reply-To: <20160531144155.7e96c5a5@nonamehost.local> References: <201605310412.u4V4CEh4021513@repo.freebsd.org> <20160531144155.7e96c5a5@nonamehost.local>
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On 2016-05-31 07:41, Ivan Klymenko wrote: > On Tue, 31 May 2016 04:12:14 +0000 (UTC) > Allan Jude <allanjude@FreeBSD.org> wrote: > >> Author: allanjude >> Date: Tue May 31 04:12:14 2016 >> New Revision: 301010 >> URL: https://svnweb.freebsd.org/changeset/base/301010 >> >> Log: >> Connect the SHA-512t256 and Skein hashing algorithms to ZFS >> >> Support for the new hashing algorithms in ZFS was introduced in >> r289422 However it was disconnected because FreeBSD lacked >> implementations of SHA-512 (truncated to 256 bits), and Skein. >> >> These implementations were introduced in r300921 and r300966 >> respectively >> This commit connects them to ZFS and enabled these new checksum >> algorithms >> This new algorithms are not supported by the boot blocks, so do not >> use them on your root dataset if you boot from ZFS. >> > > Hello. > > Tell me please, who is now the fastest of these algorithms? > > What remains of the available algorithms checksum algorithm by default? > > Thanks. > None of the old checksums were removed This means the available checksums are (from fastest to slowest): off (bad idea) fletcher2 (not recommended, weak) fletcher4 (default) edon-r (not implemented, possibly insecure) skein sha512 sha256 -- Allan Jude
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