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Port details
pkcrack Utility for breaking pkzip encryption
1.2.2 security on this many watch lists=3 search for ports that depend on this port Find issues related to this port Report an issue related to this port
Maintainer: ehaupt@FreeBSD.org search for ports maintained by this maintainer
Port Added: 28 Jul 2005 10:32:49
License: not specified in port
This package implements an algorithm for breaking the PkZip cipher that was
devised by Eli Biham and Paul Kocher.

This program applies a known plaintext attack to an encrypted file.
A known-plaintext-attack recovers a password using the encrypted file and
(part of) the unencrypted file.

Please note that cryptographers use the word 'plaintext' for any kind of
unencrypted data - not necessarily readable ASCII text.

Before you ask why somebody may want to know the password when he already knows
the plaintext think of the following situations:

 - Usually there's a large number of files in a ZIP-archive. Usually all these
   files are encrypted using the same password. So if you know one of the files,
   you can recover the password and decrypt the other files.
 - You need to know only a part of the plaintext (at least 13 bytes). Many files
   have commonly known headers, like DOS .EXE-files. Knowing a reasonably long
   header you can recover the password and decrypt the entire file.

WWW: http://www.unix-ag.uni-kl.de/~conrad/krypto/pkcrack.html
SVNWeb : Homepage : PortsMon

To install the port: cd /usr/ports/security/pkcrack/ && make install clean
To add the package: pkg install pkcrack

PKGNAME: pkcrack

distinfo:

SHA256 (pkcrack-1.2.2.tar.gz) = 4d2dc193ffa4342ac2ed3a6311fdf770ae6a0771226b3ef453dca8d03e43895a
SIZE (pkcrack-1.2.2.tar.gz) = 174208


NOTE: FreshPorts displays only information on required and default dependencies. Optional dependencies are not covered.

Build dependencies:
  1. gmake : devel/gmake
There are no ports dependent upon this port

Configuration Options
===> The following configuration options are available for pkcrack-1.2.2:
     DOCS=on: Build and/or install documentation
===> Use 'make config' to modify these settings

USES:
gmake

Master Sites:
  1. http://distcache.FreeBSD.org/local-distfiles/ehaupt/
  2. http://distcache.eu.FreeBSD.org/local-distfiles/ehaupt/
  3. http://distcache.us-east.FreeBSD.org/local-distfiles/ehaupt/
  4. http://distcache.us-west.FreeBSD.org/local-distfiles/ehaupt/
  5. http://www.unix-ag.uni-kl.de/~conrad/krypto/pkcrack/

Number of commits found: 20

Commit History - (may be incomplete: see SVNWeb link above for full details)
DateByDescription
19 May 2016 10:53:06
Original commit files touched by this commit  1.2.2
Revision:415500
amdmi3 search for other commits by this committer
- Fix trailing whitespace in pkg-descrs, categories [p-x]*

Approved by:	portmgr blanket
06 Jan 2015 09:40:03
Original commit files touched by this commit  1.2.2
Revision:376407
ehaupt search for other commits by this committer
Move MASTER_SITES from CRITICAL to LOCAL/ehaupt
18 Mar 2014 14:26:58
Original commit files touched by this commit  1.2.2
Revision:348550
ehaupt search for other commits by this committer
Quiesce mkdir
13 Feb 2014 09:40:28
Original commit files touched by this commit  1.2.2
Revision:344072
ehaupt search for other commits by this committer
Eliminate inclusion of bsd.port.options.mk where PORT_OPTIONS is not tested for
afterwards.

Encouraged by:	mat
12 Feb 2014 19:25:08
Original commit files touched by this commit  1.2.2
Revision:343991
ehaupt search for other commits by this committer
Now that this port is staged and DOCS defined we can stop testing for DOCS in
any install target.
23 Oct 2013 12:35:04
Original commit files touched by this commit  1.2.2
Revision:331381
ehaupt search for other commits by this committer
Support staging.
20 Sep 2013 22:55:26
Original commit files touched by this commit  1.2.2
Revision:327769
bapt search for other commits by this committer
Add NO_STAGE all over the place in preparation for the staging support (cat:
security)
24 Jul 2013 08:19:07
Original commit files touched by this commit  1.2.2
Revision:323578
ehaupt search for other commits by this committer
Remove MAKE_JOBS_SAFE which is now default.
08 Jul 2013 18:42:16
Original commit files touched by this commit  1.2.2
Revision:322530
ehaupt search for other commits by this committer
- Convert USE_GMAKE to USES=gmake
- Change pkgconfig:build to pkgconfig since it's the same and it's bad practice.
  It accidentally slipped in during the original introduction
- Trim header
08 Mar 2013 14:00:31
Original commit files touched by this commit  1.2.2
Revision:313649
ehaupt search for other commits by this committer
Remove indefinite article from COMMENT
15 Jan 2013 13:40:29
Original commit files touched by this commit  1.2.2
Revision:310443
ehaupt search for other commits by this committer
- Use DOC instead of NOPORTDOCS
- Pacify portlint
- Convert header
24 Oct 2011 04:17:38
Original commit files touched by this commit  1.2.2
dougb search for other commits by this committer
Remove more tags from pkg-descr files fo the form:

- Name
em@i.l

or variations thereof. While I'm here also fix some whitespace and other
formatting errors, including moving WWW: to the last line in the file.
21 Jun 2011 14:07:47
Original commit files touched by this commit  1.2.2
ehaupt search for other commits by this committer
Fix build with clang.
27 Mar 2009 09:53:36
Original commit files touched by this commit  1.2.2
ehaupt search for other commits by this committer
Mark MAKE_JOBS_SAFE
27 Mar 2008 19:27:34
Original commit files touched by this commit  1.2.2
ehaupt search for other commits by this committer
Use MASTER_SITE_CRITICAL
01 Jun 2006 12:13:54
Original commit files touched by this commit  1.2.2
ehaupt search for other commits by this committer
Add an additional mirror.
19 Feb 2006 11:39:14
Original commit files touched by this commit  1.2.2
ehaupt search for other commits by this committer
Remove deprecated USE_REINPLACE
30 Nov 2005 14:01:14
Original commit files touched by this commit  1.2.2
ehaupt search for other commits by this committer
Add SHA256 hashes to my ports
06 Oct 2005 11:57:11
Original commit files touched by this commit  1.2.2
ehaupt search for other commits by this committer
Change MAINTAINER address for my ports.

Approved by:    novel (mentor)
28 Jul 2005 10:32:17
Original commit files touched by this commit  1.2.2
garga search for other commits by this committer
This package implements an algorithm for breaking the PkZip cipher that was
devised by Eli Biham and Paul Kocher.

This program applies a known plaintext attack to an encrypted file.
A known-plaintext-attack recovers a password using the encrypted file and
(part of) the unencrypted file.

Please note that cryptographers use the word 'plaintext' for any kind of
unencrypted data - not necessarily readable ASCII text.

Before you ask why somebody may want to know the password when he already knows
the plaintext think of the following situations:

 - Usually there's a large number of files in a ZIP-archive. Usually all these
   files are encrypted using the same password. So if you know one of the files,
   you can recover the password and decrypt the other files.
 - You need to know only a part of the plaintext (at least 13 bytes). Many files
   have commonly known headers, like DOS .EXE-files. Knowing a reasonably long
   header you can recover the password and decrypt the entire file.

WWW: http://www.unix-ag.uni-kl.de/~conrad/krypto/pkcrack.html

PR:             ports/84192
Submitted by:   Emanuel Haupt <ehaupt@critical.ch>

Number of commits found: 20

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