[pkgsrc/trunk]: pkgsrc/doc Initial import of hydan-0.13 into the Packages Col...

[agc <agc%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/36efd74129c2
branches:  trunk
changeset: 479369:36efd74129c2
user:      agc <agc%pkgsrc.org@localhost>
date:      Fri Aug 13 10:27:46 2004 +0000

description:
Initial import of hydan-0.13 into the Packages Collection.

Hydan steganographically conceals a message into an application.  It
exploits redundancy in the i386 instruction set by defining sets of
functionally equivalent instructions.  It then encodes information in
machine code by using the appropriate instructions from each set.

Features:
       - Application filesize remains unchanged
       - Message is blowfish encrypted with a user-supplied
         passphrase before being embedded
       - Encoding rate: 1/110

Primary uses for Hydan:
       - Covert Communication:  embedding data into binaries creates a
         covert channel that can be used to exchange secret messages.
       - Signing:  a program's cryptographic signature can be embedded
         into itself.  The recipient of the binary can then verify
         that it has not been tampered with (virus or trojan), and is
         really from who it claims to be from.  This check can be
         built into the OS for user transparency.
       - Watermarking:  a watermark can be embedded to uniquely
         identify binaries for copyright purposes, or as part of a DRM
         scheme.  Note:  this usage is not recommended as Hydan
         implements fragile watermarks.

diffstat:

 doc/CHANGES |  3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diffs (14 lines):

diff -r de0358d8de69 -r 36efd74129c2 doc/CHANGES
--- a/doc/CHANGES       Fri Aug 13 10:26:50 2004 +0000
+++ b/doc/CHANGES       Fri Aug 13 10:27:46 2004 +0000
@@ -1,4 +1,4 @@
-$NetBSD: CHANGES,v 1.6862 2004/08/13 08:16:00 cube Exp $
+$NetBSD: CHANGES,v 1.6863 2004/08/13 10:27:46 agc Exp $
 
 Changes to the packages collection and infrastructure in 2004:
 
@@ -3810,3 +3810,4 @@
        Updated libelf to 0.8.5nb1 [cube 2004-08-13]
        Updated lftp to 3.0.7 [salo 2004-08-13]
        Updated ion to 20040729 [cube 2004-08-13]
+       Added hydan-0.13 [agc 2004-08-13]