From Mark_Andrews@isc.org  Fri Feb 24 00:48:55 2006
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Date: Fri, 24 Feb 2006 11:48:47 +1100 (EST)
From: Mark Andrews <Mark_Andrews@isc.org>
Reply-To: Mark Andrews <Mark_Andrews@isc.org>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: SHA256_Update / SHA512_Update fail to ensure correct alignment
X-Send-Pr-Version: 3.113
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>Number:         93776
>Category:       bin
>Synopsis:       [crypto] [patch] SHA256_Update / SHA512_Update fail to ensure correct alignment
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    jmg
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Feb 24 00:50:04 GMT 2006
>Closed-Date:    
>Last-Modified:  Fri Jan 24 21:24:01 UTC 2014
>Originator:     Mark Andrews
>Release:        FreeBSD 4.11-STABLE i386
>Organization:
ISC
>Environment:
System: FreeBSD drugs.dv.isc.org 4.11-STABLE FreeBSD 4.11-STABLE #27: Fri Jan 27 22:26:40 EST 2006 marka@drugs.dv.isc.org:/usr/obj/usr/src/sys/DRUGS i386


/*      $FreeBSD: src/sys/crypto/sha2/sha2.c,v 1.2.2.2 2002/03/05 08:36:47 ume Exp $    */

>Description:

	We have incorporated the above revision into BIND 9.4.0. 

	Testing of the DS record with SHA256 (see draft) showed up a
	problem on sparc machines.  data is not always correctly aligned
	to be correctly cast to (sha2_word32*) / (sha2_word64*).

	http://www.ietf.org/internet-drafts/draft-ietf-dnsext-ds-sha256-05.txt

>How-To-Repeat:

>Fix:

	Always copy data to context->buffer before calling SHA256_Transform()
	as context->buffer is correctly aligned.
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->jmg 
Responsible-Changed-By: jmg 
Responsible-Changed-When: Fri Jan 24 21:23:25 UTC 2014 
Responsible-Changed-Why:  
I'll take over this bug...  I plan on replacing the sha256 in kernel 
w/ the faster one from userland in the near future... 

http://www.freebsd.org/cgi/query-pr.cgi?pr=93776 
>Unformatted:
