Re: bin/43221: ssh(1) doesn't support MAC 'umac-64%openssh.com@localhost'

[christos%zoulas.com@localhost (Christos Zoulas)]

The following reply was made to PR bin/43221; it has been noted by GNATS.

From: christos%zoulas.com@localhost (Christos Zoulas)
To: gnats-bugs%NetBSD.org@localhost, gnats-admin%netbsd.org@localhost, 
netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: bin/43221: ssh(1) doesn't support MAC 
'umac-64%openssh.com@localhost'
Date: Thu, 29 Apr 2010 08:59:46 -0400

 On Apr 29,  8:05am, tron%zhadum.org.uk@localhost 
(tron%zhadum.org.uk@localhost) wrote:
 -- Subject: bin/43221: ssh(1) doesn't support MAC 
'umac-64%openssh.com@localhost'
 
 | >Number:         43221
 | >Category:       bin
 | >Synopsis:       ssh(1) doesn't support MAC 'umac-64%openssh.com@localhost'
 | >Confidential:   no
 | >Severity:       non-critical
 | >Priority:       low
 | >Responsible:    bin-bug-people
 | >State:          open
 | >Class:          sw-bug
 | >Submitter-Id:   net
 | >Arrival-Date:   Thu Apr 29 08:05:00 +0000 2010
 | >Originator:     tron%zhadum.org.uk@localhost
 | >Release:        NetBSD 5.99.27
 | >Organization:
 | Matthias Scheler                                  http://zhadum.org.uk/
 | >Environment:
 | System: NetBSD lyssa.zhadum.org.uk 5.99.27 NetBSD 5.99.27 (LYSSA) #0: Fri 
Apr 23 11:26:15 BST 2010 
tron%lyssa.zhadum.org.uk@localhost:/src/sys/compile/LYSSA i386
 | Architecture: i386
 | Machine: i386
 | >Description:
 | The ssh_config(1) manual page claims that the default list of MAC algorithms
 | supported by ssh(1) looks like this:
 | 
 |                    hmac-md5,hmac-sha1,umac-64%openssh.com@localhost,
 |                    hmac-ripemd160,hmac-sha1-96,hmac-md5-96
 | 
 | But 'umac-64%openssh.com@localhost' doesn't actually work:
 | 
 | tron@lyssa:~>ssh -m umac-64%openssh.com@localhost colwyn
 | Unknown mac type 'umac-64%openssh.com@localhost'
 | 
 | The other algorithms are really supported:
 | 
 | tron@lyssa:~>ssh -m hmac-ripemd160 colwyn     
 | Last login: Thu Apr 29 08:53:37 2010 from excalibur.zhadum.org.uk
 | NetBSD 5.0_STABLE (COLWYN.64) #0: Mon Jan 25 15:37:55 GMT 2010
 | 
 | Welcome to NetBSD!
 | 
 | tron@colwyn:~>
 | 
 | >How-To-Repeat:
 | ssh -m umac-64%openssh.com@localhost <hostname>
 | 
 | >Fix:
 | We should either change the manual page or enable support for the
 | missing MAC algorithm.
 
 Change the man page; the umac-64 code is poorly written and will not work
 for architectures with alignment constraints.
 
 christos