path: root/sbin/md5/md5.1
diff options
authorMurray Stokely <murray@FreeBSD.org>2001-09-04 01:01:07 +0000
committerMurray Stokely <murray@FreeBSD.org>2001-09-04 01:01:07 +0000
commitcc2a5b08a7e03e04c789663a3c0485dc08d1cfa2 (patch)
tree2d0b5e63a6108d765295d946e52b49bd8148c504 /sbin/md5/md5.1
parentc2712585427be5c9b45b1b2501ff01e46349ba57 (diff)
Mention collision attacks on MD5. From the md5(3) man page.
PR: docs/14158 Reviewed by: kris Submitted by: Eric Frias <efrias@sg505.net>
Notes: svn path=/head/; revision=82912
Diffstat (limited to 'sbin/md5/md5.1')
1 files changed, 6 insertions, 0 deletions
diff --git a/sbin/md5/md5.1 b/sbin/md5/md5.1
index 963571abc88e..d7407780b167 100644
--- a/sbin/md5/md5.1
+++ b/sbin/md5/md5.1
@@ -28,6 +28,12 @@ in a secure manner before being encrypted with a private
key under a public-key cryptosystem such as
.Em RSA .
+MD5 has not yet (2001-09-03) been broken, but sufficient attacks have been
+made that its security is in some doubt. The attacks on MD5
+are in the nature of finding ``collisions'' \- that is, multiple
+inputs which hash to the same value; it is still unlikely for an attacker
+to be able to determine the exact original input given a hash value.
The following options may be used in any combination and must
precede any files named on the command line. The MD5
sum of each file listed on the command line is printed after the options