svn commit: r266417 - head/sbin/md5
bjk at FreeBSD.org
Sun May 18 21:17:00 UTC 2014
Author: bjk (doc committer)
Date: Sun May 18 21:16:59 2014
New Revision: 266417
Assorted updates to md5.1
Note that the -c argument's parameter is compared against the digest of
the file, not the file. 
Update the "current time" parentheticals for notes about reversing
and colliding the hash functions. 
Some general mdoc updates.
PR: docs/188043 
Submitted by: Jamie Landeg-Jones 
Approved by: hrs (mentor)
MFC after: 1 week
--- head/sbin/md5/md5.1 Sun May 18 21:05:54 2014 (r266416)
+++ head/sbin/md5/md5.1 Sun May 18 21:16:59 2014 (r266417)
@@ -1,5 +1,5 @@
-.Dd July 31, 2012
+.Dd May 17, 2014
.Dt MD5 1
@@ -63,12 +63,12 @@ concerned, and should not be relied upon
This also means that
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
MD5, i.e., to find an input given a hash value.
-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
@@ -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.
@@ -114,7 +114,9 @@ and
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
.Sh SEE ALSO
.Xr cksum 1 ,
.Xr md5 3 ,
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