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authorBenjamin Kaduk <bjk@FreeBSD.org>2014-05-18 21:16:59 +0000
committerBenjamin Kaduk <bjk@FreeBSD.org>2014-05-18 21:16:59 +0000
commit0e2e260ed23d596dc719660e3059f20176844e4e (patch)
treeefe6f12570be7a5b6679d67e138755b57f0f2199 /sbin/md5/md5.1
parent59be36b0f7264101b71a6dba95f3f91d16d5710a (diff)
downloadsrc-0e2e260ed23d596dc719660e3059f20176844e4e.tar.gz
src-0e2e260ed23d596dc719660e3059f20176844e4e.zip
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] Approved by: hrs (mentor) MFC after: 1 week
Notes
Notes: svn path=/head/; revision=266417
Diffstat (limited to 'sbin/md5/md5.1')
-rw-r--r--sbin/md5/md5.116
1 files changed, 9 insertions, 7 deletions
diff --git a/sbin/md5/md5.1 b/sbin/md5/md5.1
index 04efa3750d06..77c40a17bfe1 100644
--- a/sbin/md5/md5.1
+++ b/sbin/md5/md5.1
@@ -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 to produce unique outputs.
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 listed on the command line is printed
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 ,