From owner-svn-src-all@FreeBSD.ORG Tue Apr 14 00:27:55 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 7156C64F; Tue, 14 Apr 2015 00:27:55 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 42ECEB1; Tue, 14 Apr 2015 00:27:55 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t3E0RsQT017748; Tue, 14 Apr 2015 00:27:54 GMT (envelope-from delphij@FreeBSD.org) Received: (from delphij@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t3E0RsfI017747; Tue, 14 Apr 2015 00:27:54 GMT (envelope-from delphij@FreeBSD.org) Message-Id: <201504140027.t3E0RsfI017747@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: delphij set sender to delphij@FreeBSD.org using -f From: Xin LI Date: Tue, 14 Apr 2015 00:27:54 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r281512 - stable/10/sbin/md5 X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Apr 2015 00:27:55 -0000 Author: delphij Date: Tue Apr 14 00:27:54 2015 New Revision: 281512 URL: https://svnweb.freebsd.org/changeset/base/281512 Log: MFC r266417 (bjk): Assorted updates to md5.1 Note that the -c argument's parameter is compared against the digest of the file, not the file. [1] Update the "current time" parentheticals for notes about reversing and colliding the hash functions. [1] Some general mdoc updates. PR: docs/188043 [1] Submitted by: Jamie Landeg-Jones [1] Modified: stable/10/sbin/md5/md5.1 Directory Properties: stable/10/ (props changed) Modified: stable/10/sbin/md5/md5.1 ============================================================================== --- stable/10/sbin/md5/md5.1 Tue Apr 14 00:02:39 2015 (r281511) +++ stable/10/sbin/md5/md5.1 Tue Apr 14 00:27:54 2015 (r281512) @@ -1,5 +1,5 @@ .\" $FreeBSD$ -.Dd July 31, 2012 +.Dd May 17, 2014 .Dt MD5 1 .Os .Sh NAME @@ -63,12 +63,12 @@ concerned, and should not be relied upon This also means that .Tn MD5 should not be used as part of a cryptographic signature scheme. -At the current time (2009-01-06) there is no publicly known method to +At the current time (2014-05-17) there is no publicly known method to .Dq reverse MD5, i.e., to find an input given a hash value. .Pp .Tn SHA-1 -currently (2009-01-06) has no known collisions, but an attack has been +currently (2014-05-17) has no known collisions, but an attack has been found which is faster than a brute-force search, placing the security of .Tn SHA-1 in doubt. @@ -83,15 +83,15 @@ The hexadecimal checksum of each file li after the options are processed. .Bl -tag -width indent .It Fl c Ar string -Compare files to this md5 string. -(Note that this option is not yet useful if multiple files are specified.) +Compare the digest of the file against this string. +.Pq Note that this option is not yet useful if multiple files are specified. .It Fl s Ar string Print a checksum of the given .Ar string . .It Fl p Echo stdin to stdout and append the checksum to stdout. .It Fl q -Quiet mode - only the checksum is printed out. +Quiet mode \(em only the checksum is printed out. Overrides the .Fl r option. @@ -114,7 +114,9 @@ and .Nm rmd160 utilities exit 0 on success, 1 if at least one of the input files could not be read, -and 2 if at least one file does not have the same hash as the -c option. +and 2 if at least one file does not have the same hash as the +.Fl c +option. .Sh SEE ALSO .Xr cksum 1 , .Xr md5 3 ,