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- Info-PGP: PGP Digest Saturday 12 November 1992 Volume 2 : Number 1
- Hugh Miller, List Manager / Moderator
-
- Info-PGP is a digested mailing list dedicated to discussion of Philip
- Zimmermann's `Pretty Good Privacy' (PGP) public-key encryption program for
- MS-DOS, Unix, VMS, Atari, Amiga, SPARC, Macintosh, and (hopefully) other
- operating systems. It is primarily intended for users on Internet sites
- without access to the `alt.security.pgp' newsgroup. Most submissions to
- alt.security.pgp will be saved to Info-PGP, as well as occasional relevant
- articles from sci.crypt or other newsgroups. Info-PGP will also contain
- mailings directed to the list address.
- To SUBSCRIBE to Info-PGP, please send a (polite) note to
- info-pgp-request@lucpul.it.luc.edu. This is not a mailserver; there is a
- human being on the other end, and bodiless messages with "Subject:" lines
- reading "SUBSCRIBE INFO-PGP" will be ignored until the sender develops
- manners. To SUBMIT material for posting to Info-PGP, please mail to
- info-pgp@lucpul.it.luc.edu. In both cases, PLEASE include your name and
- Internet "From:" address. Submissions will be posted pretty well as received,
- although the list maintainer / moderator reserves the right to omit redundant
- messages, trim bloated headers & .sigs, and other such minor piffle. I will
- not be able to acknowledge submissions, nor, I regret, will I be able to pass
- posts on to alt.security.pgp for those whose sites lack access.
- Due to U.S. export restrictions on cryptographic software, I regret that I
- cannot include postings containing actual source code (or compiled binaries)
- of same. For the time being at least I am including patches under the same
- ukase. I regret having to do this, but the law, howbeit unjust, is the law.
- If a European reader would like to handle that end of things, perhaps run a
- "Info-PGP-Code" digest or somesuch, maybe this little problem could be worked
- around.
- I have received a promise of some space on an anonymous-ftp'able Internet
- site for back issues of Info-PGP Digest. Full details as soon as they firm
- up.
- Oh, yes: ALL CONTRIBUTIONS CONSIDERED AS PERSONAL COMMENTS; STANDARD
- DISCLAIMERS APPLY.
-
- Hugh Miller | Asst. Prof. of Philosophy | Loyola University Chicago
- FAX: 312-508-2292 | Voice: 312-508-2727 | hmiller@lucpul.it.luc.edu
- Signed PGP v.2.1 public key certificate available by e-mail & finger(1)
-
- -------------------------------------------------------------------------------
-
- From: jcmurphy@acsu.buffalo.edu (Jeff Murphy)
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc
- Subject: Re: PGP v. 2.1 Released
- Date: 8 Dec 92 22:29:29 GMT
-
- In article <1992Dec8.172944.19370@netcom.com> strnlght@netcom.com (David Sternlight) writes:
- >
- >I don't understand the comment that "if you're living in the U.S.A.
- >you probably shouldn't be using it" (pgp2.1). I thought it was o.k.
- >for personal, educational, or research use, and only an infringement
- >if used commercially without permission of PKP.
- >
- >Can anyone clear this up once and for all?
-
- yes. the algorithm employed in PGP is patented, and PKP
- (from what I have gathered) does not have permission to use it. Therefore,
- it is techically illegal to use the program...
-
- hope this helps
-
- --
- jcmurphy@acsu.buffalo.edu cit network installation and repair
- opnsmurf@ubvms.cc.buffalo.edu standard disclaimers apply. sunyab
- the neurotic build castles in the sky and the psychotic live in them.
-
- =-=-=-=-=-=
-
- From: dick.zeitlin%acc1bbs@ssr.com (Dick Zeitlin)
- Newsgroups: sci.crypt
- Subject: Re: Questions about US/Ca
- Date: 7 Dec 92 22:00:00 GMT
-
- > .: (2) Is it illegal to crypt any form of communication (like regular
- > .: mail) or, as above, people are just wishing it were ?
-
- RC> .Not yet according to specific statute.
-
- 47CFR 97.113(d): (Concerning amateur radio...)
- No station shall transmit ... messages in codes or ciphers where
- the intent is to obscure the meaning (except where specifically
- excepted elsewere (sic) in the Part);
-
- Note: I haven't found those exceptions yet...
-
- D/
-
- * OLX 2.2 * Bring back A-N airways!! Dick.Zeitlin%acc1bbs@ssr.com
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc
- From: frechett@spot.Colorado.EDU (-=Runaway Daemon=-)
- Subject: Re: PGP v. 2.1 Released
- Date: Thu, 10 Dec 1992 07:53:42 GMT
-
- In article <1992Dec8.155135.385@uoft02.utoledo.edu> jsteiner@anwsun.phya.utoledo.edu (jason 'Think!' steiner) writes:
-
- >i tried assigning a key to 'pgp -fast +clearsig=on'. this works
- >as a file pipe, but when i try to use it in vi it hangs on asking for
- >my password. i know how to set my password as an environment var,
- >but i'd rather it prompted me each time.
-
- It is prompting.. That's why it hangs.. you just can't see the prompt.
- While it's hung, type in your passwd. It will not show on the screen
- and then give it a sec. I find it generally takes a bit longer.. Of
- course if you mistype it's hard to tell what it's up to.. Kill it with ^C.
-
- >jason
-
- ian
-
- =-=-=-=-=-=
-
- From: mathew <mathew@mantis.co.uk>
- Newsgroups: alt.security.pgp
- Subject: Re: PGP-compatible archiver released
- Date: Wed, 09 Dec 92 16:47:39 GMT
-
- pgut1@cs.aukuni.ac.nz (Peter Gutmann) writes:
- > - Quality Postscript documentation (600K worth)
-
- Any chance of making the documentation available in some sort of document
- format, rather than as a printer dump file? I mean, how would you like it if
- I posted this article in HPGL?
-
- mathew
- --
- Lung cancer and arteriosclerosis.
- For people who like to smoke.
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp
- Subject: Re: PGP-compatible archiver released
- From: pgut1@cs.aukuni.ac.nz (Peter Gutmann)
- Date: Thu, 10 Dec 1992 12:58:12 GMT
-
- In <5TXiVB38w165w@mantis.co.uk> mathew <mathew@mantis.co.uk> writes:
-
- >pgut1@cs.aukuni.ac.nz (Peter Gutmann) writes:
- >> - Quality Postscript documentation (600K worth)
-
- >Any chance of making the documentation available in some sort of document
- >format, rather than as a printer dump file? I mean, how would you like it if
- >I posted this article in HPGL?
-
- There's a flat ASCII file included with the source code and executables if
- you can't handle Postscript (that's why I put the PS docs in a seperate file -
- not everyone will want them. You get the ASCII docs by default, and if you
- want better-quality ones you can grab the PS stuff).
-
- As for the second comment, I've seen PS .sigs, so why not a posting in
- HPGL? Go ahead, be the first on your system to post in a fancy text
- format -
-
- SS
- 0 0 0 fC
- 32 0 0 50 50 0 0 45 /Times-Roman /font32 ANSIFont font
- 300 209 717 (If you've got it, why not flaunt it :-\)) SB
- EJ RS SS
- RS
-
- (Damn, PS smilies don't quite turn out right)
- Peter.
- --
- pgut1@cs.aukuni.ac.nz||p_gutmann@cs.aukuni.ac.nz||gutmann_p@kosmos.wcc.govt.nz
- peterg@kcbbs.gen.nz||peter@nacjack.gen.nz||peter@phlarnschlorpht.nacjack.gen.nz
- (In order of preference - one of 'ems bound to work)
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp
- From: dbarber@crash.cts.com (David C. Barber)
- Subject: PGP -- drugs or security?
- Date: 10 Dec 92 01:31:59 GMT
-
- PGP here seems to refer to a public key cypher system, while in
- alt.drugs they are discussing PGP as something found in mushrooms.
-
- Is this a put-on somewhere, or do we just happen to use the same
- acryonim both places?
-
- Without change, *David Barber*
- nothing can ever get better. @}-->----
-
- UUCP: ucsd!crash!dbarber
- INET: dbarber@crash.cts.com
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc,talk.politics.guns
- From: uri@watson.ibm.com (Uri Blumenthal)
- Subject: Re: PGP v. 2.1 Released
- Date: Thu, 10 Dec 1992 17:36:45 GMT
-
- In article <1992Dec9.181918.13779@netcom.com>, strnlght@netcom.com (David Sternlight) writes:
- |> It is unlikely that the government would "tip off" PKP, since that
- |> would be an acknowledgement that they're monitoring and using traffic
- |> in general without a court order.
-
- I don't see how one would prove that the gov't "tipped" PKP in case
- it happens. How about the following scenario:
-
- 1) A scapegoat is chosen.
- 2) His traffic is monitored and some "cherry" is found
- (like using PGP :-).
- 3) A court order is received for some "chicken-shit" offense.
- 4) That offense isn't proven and therefore doesn't stick,
- but during the "investigation" a case of patent
- infringement is opened.
- 5) PKP sues the pants off the poor individual.
- 6) Go to step 1).
-
- |> It is, I believe, still illegal
- |> for the NSA to monitor wholly domestic traffic, and the FBI cannot
- |> do so without a court order showing probable cause for an individual
- |> monitored. Though I'm not an attorney, I speculate that the FBI could
- |> not get a general court order permitting monitoring of, say, domestic
- |> Internet mail.
-
- Theoretically your're correct. Practically - "might is right". And you
- can't even TELL whether your traffic is monitored...
-
- So I wouldn't stake my life/freedom on how strictly FBI/NSA/??? are
- observing the regulations supposedly governing them.
-
- Somewhere in PGP docs there's a nice phrase:
-
- "PGP is guerilla freeware....."
-
- Well, guerillas who announce themselves publicly. don't
- live long (physical law :-).
-
- Why does PGP has those ugly lines "----BEGIN PGP...."
- and so on? PGP-2.1 is much better than PGP-2.0. Let's
- make it really good now - GET RID OF THOSE BETRAYING
- TAGS! NOW!
-
- |> Disclaimer: Nothing in this message should be read to imply I'm using
- |> any system covered by PKP patents, in violation of such patents.
-
- Of course! Neither am I (:-)
- --
- Regards,
- Uri. uri@watson.ibm.com
- ------------
- <Disclaimer>
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc,talk.politics.guns
- From: strnlght@netcom.com (David Sternlight)
- Subject: Re: PGP v. 2.1 Released
- Date: Thu, 10 Dec 1992 18:51:07 GMT
-
- I have mixed feelings about Uri's message.
-
- Until the legal status is resolved, one might wish to get rid of the
- PGP "tags" which are overt confirmation that one is using a public key
- system. On the other hand, I disagree in the sense that if unlicensed
- use of public key systems REALLY IS a violation of law (not "is
- asserted to be by PKP")--for example after a court case--then his
- suggestions is tantamount to publicly advocating the concealing of a
- legal violation, which I cannot support.
-
- If one feels PKP is over-broad in their claims, the way to deal with
- this is by direct resolution. If one feels PKP is legally on firm ground
- but thinks there "shouldn't be" patent protection for software, or some
- such, again the way to deal with this is by trying to get the law changed.
- I'm not one who supports illegal acts in the face of what one thinks
- is unfairness.
-
- Finally, I trust the police and intelligence agencies of our
- government. They are not a bunch of fascists out to get the innocent,
- as some messages sometimes imply, but hard-working fellow-Americans
- trying to do a very difficult job. Yes, there have been, and may
- continue to be some individual abuses, sometimes by senior people, but
- the way to deal with that is via strong internal and external
- watchdogs, and by clear definition of what is, and isn't to be
- permitted.
-
- Recent trials of government officials, and recent use of independent
- prosecutors, whatever one thinks of the substance, go a long way
- toward compelling caution by those who would abuse their privileged
- and trusted positions in the FBI and intelligence services.
-
- David
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp
- From: res@colnet.cmhnet.org (Rob Stampfli)
- Subject: pgp2.1 signed announcement botched by usenet?
- Date: Thu, 10 Dec 1992 05:29:39 GMT
-
- I missed the official announcement of pgp2.1 which was apparently posted
- here several days ago, but I found a copy of it posted to alt.privacy.
- The message was signed by Phil with the new pgp "+clearsig=on" option.
- Unfortunately, Phil's concern about mailers slightly corrupting the message
- in innocuous ways so that it no longer matches the original, and therefore
- no longer has a valid signature, appears to be borne out by the posting to
- alt.privacy: All empty lines in that post have one space added to them.
- The signature only checks out when one edits the posted file and ":%s/^ $//".
-
- BTW, excellent job on the 2.1 release -- a clean compile the first time.
- --
- Rob Stampfli rob@colnet.cmhnet.org The neat thing about standards:
- 614-864-9377 HAM RADIO: kd8wk@n8jyv.oh There are so many to choose from.
-
- =-=-=-=-=-=
-
- From: ujacampbe@memstvx1.memst.edu (James Campbell)
- Newsgroups: alt.security.pgp
- Subject: Re: PGP v. 2.1 Released
- Date: 10 Dec 92 18:44:29 -0600
-
- In article <1992Dec10.173645.147966@watson.ibm.com>, Uri Blumenthal raves:
-
- >Somewhere in PGP docs there's a nice phrase:
- >
- > "PGP is guerilla freeware....."
- >
- >Well, guerillas who announce themselves publicly. don't
- >live long (physical law :-).
- >
- >Why does PGP has those ugly lines "----BEGIN PGP...."
- >and so on? PGP-2.1 is much better than PGP-2.0. Let's
- >make it really good now - GET RID OF THOSE BETRAYING
- >TAGS! NOW!
-
- I've seen this demand before, and didn't comment on it, but now I'll
- go ahead and make the obvious suggestion: If you don't want the lines
- -----BEGIN PGP MESSAGE-----, Version: 2.1, and -----END PGP MESSAGE----
- in the messages you're transmitting, why not just strip them out and send
- the radix-64 stuff only? The recipient need only add that information (or,
- simpler still, write a short program to add it), then decrypt as usual.
- Considering how little PGP's developers are making off this paragon of
- freeware programming, it ill behooves us to DEMAND IMMEDIATE CHANGES that
- we can easily add ourselves, or simulate with a couple of easily-written
- STRIPTAG and ADDTAG programs.
-
- James Campbell, Math Sciences Department, MSU; ujacampbe@memstvx1.memst.edu
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc,talk.politics.guns
- From: Alex.Strasheim@launchpad.unc.edu (Alex Strasheim)
- Subject: Re: PGP v. 2.1 Released
- Date: Thu, 10 Dec 1992 23:05:53 GMT
-
- I know that pgp files can be identified as pgp files (because, after all,
- you can always try to feed it into pgp and see if it asks you for a public
- key). It seems to me that this is a necessary consequence of having a key
- managment system, but I don't have the expertise to say for sure.
-
- What I want to know is: is identifiability a *necessary* feature of a
- public key system? Would it be possible to to devise a public key
- encryption program that would, when used to encrypt a message with
- someone's private key, emit a series of bytes that would appear to be
- essentially random? If this is possible, then people could just assume
- that whenever they received a seemingly random stream of bytes in the
- mail, that it was in fact a message that had been encrypted with their
- private key.
-
- If this is indeed possible, it seems to me that any attempt to require
- private key registration (as Prof. Denning has proposed) would be futile,
- because it would be impossible to prove that public key encryption had
- been used.
-
- Alex
- --
- The opinions expressed are not necessarily those of the University of
- North Carolina at Chapel Hill, the Campus Office for Information
- Technology, or the Experimental Bulletin Board Service.
- internet: laUNChpad.unc.edu or 152.2.22.80
-
- =-=-=-=-=-=
-
- From: yee@mipg.upenn.edu (Conway Yee)
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc,talk.politics.guns
- Subject: Re: PGP v. 2.1 Released
- Date: 11 Dec 92 00:06:36 GMT
-
- >Would it be possible to to devise a public key
- >encryption program that would, when used to encrypt a message with
- >someone's private key, emit a series of bytes that would appear to be
- >essentially random?
-
- If a series of bytes were to be random, no message could possibly be
- encoded within it. The question, then becomes, is it possible that
- two entirely different encoding schemes would produces bytestreams
- which are statistically indistinguishable from each other.
-
- --
- 411 Blockley Hall | Conway Yee, N2JWQ
- 418 Service Drive | yee@ming.mipg.upenn.edu (preferred)
- Philadelphia, PA 19104 | cy5@cunixa.cc.columbia.edu (forwarded to above)
- (215) 662-6780 |
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc,talk.politics.guns
- From: pmetzger@snark.shearson.com (Perry E. Metzger)
- Subject: Re: PGP v. 2.1 Released
- Date: Fri, 11 Dec 1992 03:08:07 GMT
-
- uri@watson.ibm.com writes:
- >Somewhere in PGP docs there's a nice phrase:
- >
- > "PGP is guerilla freeware....."
- >
- >Well, guerillas who announce themselves publicly. don't
- >live long (physical law :-).
- >
- >Why does PGP has those ugly lines "----BEGIN PGP...."
- >and so on? PGP-2.1 is much better than PGP-2.0. Let's
- >make it really good now - GET RID OF THOSE BETRAYING
- >TAGS! NOW!
-
- I guess you never read the docs. Those "betraying tags" have a purpose
- -- they allow the system to automatically find the beginning and end
- of messages. You can feed mail messages into PGP without even
- stripping the headers. Its all very well engineered, and the feds can
- tell you are using PGP anyway by looking at the magic numbers in the
- Radix 64 text. I don't think there is any point in stripping them,
- since it adds no security for you and will make the program a lot more
- inconvenient to use. Its inconvenient enough already....
-
- --
- Perry Metzger pmetzger@shearson.com
- --
- "They can have my RSA key when they pry it from my cold dead fingers."
- Libertarian Party info: Phone 1-800-682-1776, E-Mail 345-5647@mcimail.com
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc,talk.politics.guns
- From: frechett@spot.Colorado.EDU (-=Runaway Daemon=-)
- Subject: Re: PGP v. 2.1 Released
- Date: Fri, 11 Dec 1992 07:09:17 GMT
-
- -----BEGIN PGP MESS-----
-
- Put -----BEGIN PGP etc etc.. around all your messages.. encrypted or not.
-
- I am admitting no guilt here. I simply like the way it looks.
-
- -----END PGP MESS----- ;)
-
- ian
-
- =-=-=-=-=-=
-
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc
- From: luckey@rtfm.mlb.fl.us (Jon Luckey)
- Subject: Re: PGP 2.1 site list
- Date: Thu, 10 Dec 1992 23:35:08 GMT
-
- s0rah@exnet.co.uk (R A Hollands) writes:
- >I've fetched pgp21.zip three times from funet and every time I end
- >up with a zip file that crc errors in the two doc files and the exe.
-
- >I am using pkunzip 1.1. Anyone else have this trouble? Anyone have
- >have a stunningly obvious solution?
- >TIA Richard.
-
- I've had a similar problem. I don't know why, or if there are any other
- solutions. But what I finally ended up doing was using a unix unzip
- to unzip the zip file from funet, then rezip using a -ks option.
- That archive I was able to unzip using PKUNZIP 1.1 on a DOS machine.
-
- For some reason, implode type compression seemed to cause crc errors
- sometimes, but for shrink compression seemed to work.
-
- =-=-=-=-=-=
-
- From: cme@ellisun.sw.stratus.com (Carl Ellison)
- Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc,talk.politics.guns
- Subject: Re: PGP v. 2.1 Released
- Date: 10 Dec 92 17:21:52 GMT
-
- In article <ByzCtE.8oy@news.cso.uiuc.edu> cburian@ux4.cso.uiuc.edu
- (Christopher J Burian) writes:
- >I was just wondering... I've heard rumors that the guvmint filters
- >everything going over the net. Do you suppose they look for
- >----BEGIN PGP * along with the usual mundane stuff? Then go after
- >people for patent infringement; confiscating burglary tools, a.k.a
- >citizens' computers.....
-
- Sounds like a good reason to switch from PGP to RIPEM.
-
- More to the point, someone should publish an interface description for
- PGP so that someone else can write a totally legal program which sends
- and receives in PGP format but uses RSAREF and its individual license.
- This way, those of us who would like to remain legally proper can participate
- in the exchange of PGP-like mail.
-
- --
- -- <<Disclaimer: All opinions expressed are my own, of course.>>
- -- Carl Ellison cme@sw.stratus.com
- -- Stratus Computer Inc. M3-2-BKW TEL: (508)460-2783
- -- 55 Fairbanks Boulevard ; Marlborough MA 01752-1298 FAX: (508)624-7488
-
- ***** End Info-PGP Digest *****
-
-
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