Re: fyi Duke/HP CPU average 3.75 hrs to crack 40-bit crypto

1999-01-16 Thread Dan Geer
old rumor brought to mind by: ... The UNIX password, a more-formidable challenge, allows users to specify up to 5,132,188,731,375,620 combinations of letters, numbers or symbols. "The machine we had access to doesn't quite have enough computing power," Kedem acknowledged.

Re: Stego for watermarking Perl5 code?

1999-03-23 Thread Dan Geer
Shabbir, In the 70's and early 80's, I was part of a team distributing a modestly massive Fortran program that we wanted people to use but not commercialize. Our solution then, well before we all got so smart, was to convert every label, variable, subroutine name, etc., to a random sequence of

Re: IPSEC on a Palm III?

1999-04-08 Thread Dan Geer
OTOH, a Palm isn't quite a 'secure' OS, either.. Sure, you can at least see what you are signing, but there is no secure key storage available. A trojan application could easily steal your credentials off a PalmPilot. I don't know if this is the case for an iButton.

Re: [IWAR] CRYPTO An Analysis of Shamir's Factoring Device

1999-05-05 Thread Dan Geer
I think that our history books should have a small line notation that in the space of four months, both DES-56 and RSA-512 were shown to be crackable within the capacity of a single wealthy individual, much less a national lab. As these correspond to the limits embodied in the exportability

Re: Wiretaps tripled last year, and U.K. Parliament criticizes Enfopol

1999-05-21 Thread Dan Geer
... About three-quarters of the 1,329 wiretaps authorized were related to drug cases, And, FWIW, the score was 1329 approved and 2 rejected, though the FBI will and does rightly say that if you want to keep real score you should include the successful Motions to Suppress (evidence)

Re: Sen. John McCain

1999-06-29 Thread Dan Geer
McCain replied by stating his problem this way: he's sitting across the table from the Secretary of Defense, the CJCS, and the other leaders of the national security community, and they tell him encryption exports will harm national security. What can he say in response?

Re: Padlock Size was Re: so why is IETF stilling adding DES to protocols? (Re: It's official... DES is History)

1999-06-29 Thread Dan Geer
The point is that in Netscape, it is very hard to tell if a given link is 40 bit or 128 bit. Sure, with enough poking around looking at page info you could probably figure it out. Or maybe someone knows if the little padlock means something like the little key used to. But

Re: US Urges Ban of Internet Crypto

1999-07-28 Thread Dan Geer
[Forwarded because no one has brought up this notion in a while. My problem with it is that most people don't seem to like the 2nd amendment any more so this can hardly help to popularize the cause. My feeling is that the 4th and 5th amendments have more potential protection in them. --Perry]

Re: IP: Clinton comes after the Internet by Joseph Farah

1999-08-10 Thread Dan Geer
A working group like this with only two years to go in an administration worrying about its place in history must be one of two things, only: 1. we are referring this to committee so that we can say we did something without having actually to do anything (what is sometimes rendered in Italian

Re: No liberalization for source code, API's

1999-09-21 Thread Dan Geer
I will be on stage at a minor league debating forum with Bill Reinsch on Thursday of this week. If you had one question you would want asked, what would it be? Reply directly, please. I'll read it all late Wednesday. --dan

Re: Is There a Visor Security Model?

1999-09-22 Thread Dan Geer
The Palm's security model is, by most accounts I've seen, non-existant. The issue is the lack of memory protection, i.e., that there is no protected space for keying material. Visor is said to use the PalmOS as is, so that is not a magic wand. Of course, if your OS has no memory

Re: graphical authentication

1999-10-09 Thread Dan Geer
Mention was made recently of a graphical keying method out of stanford (?) for palm-pilots. Does anyone have a reference or url for the paper/code involved? Best paper at USENIX 8th Security Symposium http://www.usenix.org/publications/library/proceedings/sec99/jermyn.html

Re: Digital Contracts: Lie in X.509, Go to Jail

1999-10-19 Thread Dan Geer
For details of how to order, see www.xs4all.nl/~brands/order.txt What is it about wanting to change the instantaneous electronic world that generates this sort of time paper hazing ritual? Yours in irreverent confusion, Lightning Rod

Re: 56 Bits?????

1999-10-29 Thread Dan Geer
[a] A 56-bit key of any algorithm, on any modern production machine is, as far as I can tell, absolutely unconscionable. [b] .. It would seem to be a relatively simple matter for Apple to offer strong crypto domestically weak crypto everywhere else; Netscape and

yet another example of a secret signature

1999-11-01 Thread Dan Geer
Always collecting examples of "secret signatures" that predate all the stuff we do, I offer this for your amusement/pleasure. --dan == "Marion Dorset," Progressive Farmer, November 1999, p31. His solution to hog cholera saved

Re: ECHELON Watch

1999-11-17 Thread Dan Geer
ACLU today launched a new web site www.echelonwatch.org... I find the phrasing of this site curious... You're talking about end-product... It is my strong suspicion that whereas the lead enjoyed by national agencies in crypto matters is substantial, such leads as they

Re: draft regulations?

1999-11-24 Thread Dan Geer
... For that matter, what is "export"? Posting something to Usenet? Putting it up on a Web page or FTP server? The act of downloading it? Egad, Steve, a highest and best use for spam. I'll buy those 300,000 e-mail addresses and send them all a copy of the GPG source, each with

Re: fwd: $100 secure phones from Starium

1999-11-26 Thread Dan Geer
Did this "$100 secure phone" ever come to pass? I stopped off at http://www.starium.com/ but the page is unmodified since April last. Starium-ites, are you out there? --dan

PGP on an e-commerce site

2000-01-03 Thread Dan Geer
My daughter was ordering a CD this evening from the site cdnow.com and I noted that besides the SSL option they also had a PGP option. Take a look at http://www.cdnow.com/cgi-bin/mserver/SID=0/pagename=/RP/HELP/order.html#8q This is new to me. --dan

Re: Blue Spike and Digital Watermarking with Giovanni

2000-01-17 Thread Dan Geer
Working for Xerox I can assure you that all of our colour machines together with all our competitors colour machines leave a "trace". Pointer to how this trace is applied, recorded, accounted for, and handled when components are swapped out? --dan

Re: The problem with Steganography

2000-01-26 Thread Dan Geer
If the picture was taken by an actual camera, the least significant bits will be random due to the nature of the way CCDs work in the real world. They might be biased, but it's not very hard to bias a "random" data stream. You could have the sender look at the bias in the

Re: financial crypto - like conferences

2000-02-08 Thread Dan Geer
I need to know, whether any of you know any other financial-crypto-like international conferences at the second half of this year. I want to submit several of my papers, and I can't wait for FC 2001. The conference need not to be very theorethical or very prestigious, preferably

Re: US congressman blasts China crypto policy

2000-02-11 Thread Dan Geer
previously sent to WSJ: | To the Editor: | | As reported, the Chinese government has moved to restrict the use | of privacy-enhancing technologies and to surveill use of the Internet | generally. Any country that does that ensures that in the global | economy the only role they can

Re: Interesting point about the declassified Capstone spec

2000-02-11 Thread Dan Geer
I agree with Peter and Arnold; in fact, I am convinced that as of this date, there are only two areas where national agencies have a lead over the private/international sector, namely one-time-pad deployment and traffic analysis. Of those, I would place a bet that only traffic analysis will

NPR on NSA

2000-03-21 Thread Dan Geer
off topic, but http://search.npr.org/cf/cmn/cmnpd01fm.cfm?PrgDate=03/14/2000PrgID=3 http://search.npr.org/cf/cmn/cmnpd01fm.cfm?PrgDate=03/15/2000PrgID=3 http://search.npr.org/cf/cmn/cmnpd01fm.cfm?PrgDate=03/16/2000PrgID=3 contains a three part series on the NSA and listening posts; many

Re: Electronic elections.

2000-05-29 Thread Dan Geer
Along the same lines as this discussion, http://www.ivta.org was recently brought to my attention in/on the "cert-talk" ([EMAIL PROTECTED]) mailing list. I appreciate that pointer (and others like it such as are appearing here and elsewhere) a great deal, especially in quotation:

Re: reflecting on PGP, keyservers, and the Web of Trust

2000-09-05 Thread Dan Geer
Well put, Greg. I do think that a small circle of trusted friends is a tautology -- if it is not small, it cannot be trusted. Was it not ever thus? --dan

Re: reflecting on PGP, keyservers, and the Web of Trust

2000-09-05 Thread Dan Geer
How do they exchange public keys? Via email I'll bet. Note that it is trivial(*) to construct a self-decrypting archive and mail it in the form of an attachment. The recipient will merely have to know the passphrase. If transit confidentiality is your aim and old versions of documents

Re: reflecting on PGP, keyservers, and the Web of Trust

2000-09-05 Thread Dan Geer
I said, Note that it is trivial(*) to construct a self-decrypting archive and mail it in the form of an attachment. The recipient will merely have to know the passphrase. If transit confidentiality is your aim and old versions of documents are irrelevant once the ink is

Re: Schneier: Why Digital Signatures are not Signatures (was Re: CRYPTO-GRAM, November 15, 2000)

2000-11-19 Thread Dan Geer
As the US banking system (and especially the bank clearinghouses controlled by the Federal Reserve system) has gone electronic, all the banks I know of have stopped bothering to verify the signatures on checks, and similarly those on credit- and debit-card drafts. Getting them to start

Re: Ashcroft on encryption

2000-12-23 Thread Dan Geer
"We're not going to outlaw photography because someone takes dirty pictures. People use it for good things and bad things - and it's the same with encryption." -- Missouri Senator John Ashcroft (Rep.) make that Attorney General Ashcroft.

Re: it's not the crypto

2001-02-06 Thread Dan Geer
The notion that e-mail should be permitted to contain arbitrary programs that are executed automatically by default on being opened is so over the top from a security stand point that it is hard to find language strong enough to condemn it. It goes far beyond the ordinary risks

Re: smartcards, electronic ballots

2001-02-06 Thread Dan Geer
This would seem relevant ... http://dailynews.yahoo.com/h/nm/20010206/ts/voting_systems_dc_1.html Tuesday February 6 12:23 PM ET Study: Old Voting Systems May Work Best By Deborah Zabarenko WASHINGTON (Reuters) - Looking back at Florida's election mess, scientists say the old ways of casting