Article View: comp.os.msdos.misc
Article #4168Re: How secure PKZIP scramble?
From: Penn Hackney
Date: Wed, 06 Sep 1995 00:00
Date: Wed, 06 Sep 1995 00:00
359 lines
11215 bytes
11215 bytes
ai@iol.ie (Astronomy Ireland) wrote:
>What's the best newsgroup for this query?
>How secure is PKZIP's scramble option?
>Is it easy to crack or one of those 'advanced' techniques?
>I never saved the documentation, where can I find a full PKZIP package?
>Thanks.
An Archie search to archie.doc.ic.ac.uk turned up the following sites,
among others, for ftp:
It looks like the smaller files are just the zipping and/or unzipping
utilities. I think the pkzip204g.exe (actually should be pk204g.exe,
202574 bytes) is the "full" package, which is shareware and costs
about $40U.S. There are also some files that seem to be security
utilities or encryption capable near the bottom -- but I know nothing
about these.
NO WARRANTY
Host ftp.edvz.uni-linz.ac.at
Location: /pub/msdos/utils/cruncher
FILE -rwxr-xr-x 11739 24-Aug-1995 03:31:10
pkzipm.zip
Host micros.hensa.ac.uk
Location: /micros/ibmpc/dos/f/f413
FILE -rw-r--r-- 11741 24-Jul-1995 09:10:34
pkzipm.zip
Host ftp.latrobe.edu.au
Location: /pub/msdos/zip
FILE -r--r--r-- 11739 21-Jul-1995 20:06:58
pkzipm.zip
Host ousrvr.oulu.fi
Location: /pub/msdos/tools
FILE -rw-r--r-- 42552 03-Sep-1995 03:16:14 pkzip.exe
Host math.amu.edu.pl
Location: /pub/chemia
FILE -rw-r--r-- 42166 03-Sep-1995 03:15:34 pkzip.exe
Host lut.fi
Location: /pub/msdos
FILE -rw-rw-r-- 42166 03-Sep-1995 03:15:06 pkzip.exe
Host ftp.vse.cz
Location: /pub/novell/netwire/techfile
FILE -r--r--r-- 42552 24-Aug-1995 03:42:13 pkzip.exe
Host ftp.kfunigraz.ac.at
Location: /edvz/info-systems/win-dos
FILE -rw-rw-r-- 42166 24-Aug-1995 03:29:42 pkzip.exe
Host ftp.sunet.se
Location: /pub/wais/freeware/windows
FILE -r--r--r-- 31488 18-Aug-1995 04:24:17 pkzip.exe
Location: /uploads/newZip
FILE -rw------- 35934 18-Aug-1995 04:24:17 pkzip.exe
Host alf.uib.no
Location: /pc/sharewre/arkiv
FILE -rw-r--r-- 42166 18-Aug-1995 04:11:10 pkzip.exe
Host ugle.unit.no
Location: /pub/bibsys/pakkeprogram
FILE -rw-r--r-- 42166 18-Aug-1995 04:03:29 pkzip.exe
Host ftp.virginia.edu
Location: /pub/pc
FILE -rw-r--r-- 32880 11-Aug-1995 04:35:22 pkzip.exe
Location: /public_access/notlob
FILE -rw-rw-rw- 42166 11-Aug-1995 04:35:22 pkzip.exe
Host ftp.cs.umn.edu
Location: /dept/users/karnik/cricket/bin
FILE -rwxr-xr-x 24411 11-Aug-1995 04:18:33 pkzip.exe
Host dorm.rutgers.edu
Location: /pub/DOS_Uncompress
FILE -rw-r--r-- 42166 10-Aug-1995 04:00:59 pkzip.exe
Host ftp.cs.unc.edu
Location: /pub/users/wheeler
FILE -rw-r--r-- 202574 10-Aug-1995 03:11:30 pkzip.exe
Host bode.ee.ualberta.ca
Location: /pub/dos/starter
FILE -rw-r--r-- 34296 05-Aug-1995 03:03:32 pkzip.exe
Host extro.ucc.su.oz.au
Location: /pub/inet-apps/win3
FILE -rw-r--r-- 42166 04-Aug-1995 03:13:13 pkzip.exe
Host ftp.technion.ac.il
Location: /pub/unsupported/vms/cerritos/pc/util
FILE -rw-r--r-- 42166 01-Aug-1995 03:18:40 pkzip.exe
Host ftp.std.com
Location: /customers/vendors/DSPdev/demos/pc
FILE -r-xr-xr-x 34296 01-Aug-1995 03:13:49 pkzip.exe
Location: /customers/vendors/Intec/DNLOAD
FILE -rw-r--r-- 42475 01-Aug-1995 03:13:49 pkzip.exe
Location: /gopherdir/vendors/.customers/nonprofits/freelance
FILE -rw-r--r-- 202574 01-Aug-1995 03:13:49 pkzip.exe
Host sw-eng.falls-church.va.us
Location: /public/AdaIC/testing/piwg/piwg_11_92/piwg
FILE -r--rw-r-- 31342 01-Aug-1995 03:13:08 pkzip.exe
Host ajpo.sei.cmu.edu
Location: /public/piwg/piwg_11_92/piwg
FILE -rw-r--r-- 31342 31-Jul-1995 03:12:12 pkzip.exe
Host ftp.essex.ac.uk
Location: /pub/biology/tools
FILE -rw-rwxr-x 42632 24-Jul-1995 09:21:47 pkzip.exe
Host ftp.univ-lille1.fr
Location: /pub/pc/dos/compacteurs
FILE -rw-rw-r-- 23528 21-Jul-1995 20:54:14 pkzip.exe
Host ftp.loria.fr
Location: /pub/textes/obi/customers/nonprofits/freelance
FILE -r--r--r-- 202574 21-Jul-1995 20:36:37 pkzip.exe
Location: /pub/textes/obi/nonprofits/freelance
FILE -r--r--r-- 202574 21-Jul-1995 20:36:37 pkzip.exe
Host ftp.3com.com
Location: /pub
FILE -rw-r----- 34296 21-Jul-1995 20:23:50 pkzip.exe
Host ftp.cecer.army.mil
Location: /isle/PCModSim
FILE -rw-r--r-- 42166 21-Jul-1995 20:22:43 pkzip.exe
Host ftp.tex.ac.uk
Location: /ctan/tex-archive/tools
DIRECTORY drwxr-xr-x 512 24-Jul-1995 09:17:48 pkzip
Location: /ctan/tex-archive/tools/zip
DIRECTORY drwxrwxr-x 512 24-Jul-1995 09:17:48 pkzip
Host ftp.loria.fr
Location: /pub/unix/tex/ctan/tools
DIRECTORY drwxr-xr-x 512 21-Jul-1995 20:36:37 pkzip
Location: /pub/unix/tex/ctan/tools/zip
DIRECTORY drwxr-xr-x 512 21-Jul-1995 20:36:37 pkzip
Host ftp.sunet.se
Location: /pub/text-processing/TeX/tools/pkzip
FILE -r--r--r-- 202574 18-Aug-1995 04:24:17
pkzip204g.exe
Host ftp.jussieu.fr
Location: /pub4/TeX/CTAN/tools/pkzip
FILE -r--r--r-- 202574 30-Jul-1995 03:05:04
pkzip204g.exe
Host ftp.tex.ac.uk
Location: /ctan/tex-archive/tools/pkzip
FILE -r--r--r-- 202574 24-Jul-1995 09:17:48
pkzip204g.exe
Host ftp.loria.fr
Location: /pub/unix/tex/ctan/tools/pkzip
FILE -r--r--r-- 202574 21-Jul-1995 20:36:37
pkzip204g.exe
ensa.ac.uk
Location: /micros/ibmpc/dos/g/g038
FILE -rw-r--r-- 206248 24-Jul-1995 09:10:34 pkzip.zip
Host sunsite.doc.ic.ac.uk
Location:
/media/literary/collections/e-serials/archive/alphabetic/c/cisnews/92/Apr
FILE -r--r--r-- 3741 24-Jul-1995 09:01:07 PKZIP for
IBM-PCs.gz
Location:
/media/literary/collections/e-serials/archive/alphabetic/c/cisnews/93/Mar
FILE -r--r--r-- 987 24-Jul-1995 09:01:07 PKZIP
Version 2.04e.gz
Host ftp.sunet.se
Location: /pub/security/docs/crypt/ripem.msu.edu
FILE -r--r--r-- 74855 18-Aug-1995 04:24:17
kocher-pkzip-attack.ps.gz
Host isdec.vc.cvut.cz
Location:
/pub/security/unimi/certs/DFN-CERT/docs/crypt/ripem.msu.edu
FILE -r--r--r-- 74855 07-Aug-1995 04:41:29
kocher-pkzip-attack.ps.gz
Host scss3.cl.msu.edu
Location: /pub/crypt/docs
FILE -rw-r--r-- 74855 04-Aug-1995 03:33:56
kocher-pkzip-attack.ps.gz
FILE -rw-r--r-- 26222 04-Aug-1995 03:33:56
kocher-pkzip-attack.txt
Host dorm.rutgers.edu
Location: /pub/DOS_Uncompress/Manuals
FILE -rw-r--r-- 140355 10-Aug-1995 04:00:59 pkzip.doc
Host ftp.std.com
Location: /customers/vendors/DSPdev/demos/pc
FILE -r--r--r-- 2039 01-Aug-1995 03:13:49 pkzip.doc
Host neptune.ethz.ch
Location: /pub/Oberon/Windows
FILE -rw-rw-r-- 202574 10-Aug-1995 03:49:07
pkzip204.exe
Host nic.switch.ch
Location: /mirror/Oberon/Windows
FILE -rw-rw-r-- 202574 10-Aug-1995 03:38:55
pkzip204.exe
Host hubcap.clemson.edu
Location: /pub/pc_shareware/dos/Archive
DIRECTORY drwxr-xr-x 512 04-Aug-1995 03:38:05 Pkzips
Host ftp.denet.dk
Location: /pub/security/CIAC
FILE -r--r--r-- 5068 31-Aug-1995 03:44:24
c-27.ciac-PKZIP-virus-alert
Location: /pub/security/CIAC/c-fy92
FILE -r--r--r-- 5068 31-Aug-1995 03:44:24
c-27.ciac-PKZIP-virus-alert
Host ftp.sunet.se
Location: /pub/security/csir/ciac/bulletin/c-fy92
FILE -r--r--r-- 5068 18-Aug-1995 04:24:17
c-27.ciac-PKZIP-virus-alert
Host isdec.vc.cvut.cz
Location: /pub/security/CIAC-advisories
FILE -r--r--r-- 5068 07-Aug-1995 04:41:29
c-27.ciac-PKZIP-virus-alert
Location: /pub/security/CIAC-advisories/c-fy92
FILE -r--r--r-- 5068 07-Aug-1995 04:41:29
c-27.ciac-PKZIP-virus-alert
Location: /pub/security/denet/CIAC
FILE -r--r--r-- 5068 07-Aug-1995 04:41:29
c-27.ciac-PKZIP-virus-alert
Location: /pub/security/denet/CIAC/c-fy92
FILE -r--r--r-- 5068 07-Aug-1995 04:41:29
c-27.ciac-PKZIP-virus-alert
Host plaza.aarnet.edu.au
Location: /pub/ciac/ciacdoc/c-fy92
FILE -r--r--r-- 5068 04-Aug-1995 03:53:54
c-27.ciac-PKZIP-virus-alert
Host ftp.net.ohio-state.edu
Location: /pub/security/ciac/bulletin/c-fy92
FILE -r--r--r-- 5068 04-Aug-1995 03:45:33
c-27.ciac-PKZIP-virus-alert
Host extro.ucc.su.oz.au
Location: /pub/sun-patches/sert/doc/CIAC
FILE -r--r--r-- 5068 04-Aug-1995 03:13:13
c-27.ciac-PKZIP-virus-alert
Host ftp.sunet.se
Location: /pub/security/docs/crypt/ripem.msu.edu
FILE -r--r--r-- 8470 18-Aug-1995 04:24:17
kocher-pkzip-attack.txt.gz
Host isdec.vc.cvut.cz
Location:
/pub/security/unimi/certs/DFN-CERT/docs/crypt/ripem.msu.edu
FILE -r--r--r-- 8470 07-Aug-1995 04:41:29
kocher-pkzip-attack.txt.gz
Host ftp.univie.ac.at
Location:
/security/crypt/ftp.dsi.unimi.it/ftp.ox.ac.uk/cryptanalysis
FILE -r--r--r-- 74360 24-Aug-1995 03:13:14
pkzip.ps.gz
Location:
/security/crypt/mirrors/ftp.dsi.unimi.it/ftp.ox.ac.uk/cryptanalysis
FILE -r--r--r-- 74360 24-Aug-1995 03:13:14
pkzip.ps.gz
Location:
/systems/unix/security/crypt/ftp.dsi.unimi.it/ftp.ox.ac.uk/cryptanalysis
FILE -r--r--r-- 74360 24-Aug-1995 03:13:14
pkzip.ps.gz
Location:
/systems/unix/security/crypt/mirrors/ftp.dsi.unimi.it/ftp.ox.ac.uk/cryptanalysis
FILE -r--r--r-- 74360 24-Aug-1995 03:13:14
pkzip.ps.gz
Host isdec.vc.cvut.cz
Location: /pub/security/unimi/crypt/ftp.ox.ac.uk/cryptanalysis
FILE -r--r--r-- 74360 07-Aug-1995 04:41:29
pkzip.ps.gz
__
Penn
..
Technical Details
Message-ID:
<42j747$i8o@news-e1a.megaweb.com>Path:
arc1-ca.pugleaf.net!unknown!not-for-mailReferences:
<428g6r$49b@barnacle.iol.ie>Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1005f5,5ec17ae30acdeb63 X-Google-Attributes: gid1005f5,public X-Google-Thread: 105e4d,5ec17ae30acdeb63 X-Google-Attributes: gid105e4d,public X-Google-Thread: f71eb,5ec17ae30acdeb63 X-Google-Attributes: gidf71eb,public X-Google-Thread: 10b88a,5ec17ae30acdeb63 X-Google-Attributes: gid10b88a,public From: TCDPenn@gnn.com (Penn Hackney) Subject: Re: How secure PKZIP scramble? Date: 1995/09/06 Message-ID: <42j747$i8o@news-e1a.megaweb.com> X-Deja-AN: 109537987 references: <428g6r$49b@barnacle.iol.ie> x-gnn-newsserver-posting-date: 6 Sep 1995 04:12:55 GMT organization: Megaweb newsgroups: comp.os.msdos.misc,uk.misc,iol.general,ie.general