-----BEGIN PGP SIGNED MESSAGE----- I downloaded the thing... here's what I posted to sci.crypt: Looks like snake oil to me... the whole thing comes down to each executable having a unique "registration number" so that only that copy of the software can decrypt with that "registration number". You encrypt with a key of between 5 and 10 text characters, and you provide the registration number of the destination party. The "registration number" and key get combined in some way to form the encryption key. (Registration numbers are public information). Since ONLY ;) the destination party has the correct copy of the software, only they can decrypt the data, hence the key can be passed over an insecure channel. Heh. They say the encryption algorithm is a form of substitution cipher. SO.... since the "registration number" and key are public, the only thing keeping this together is the lack of the algorithm, which of course doesn't keep it together at all. Fun... On Mon, 15 Jul 1996, Damaged Justice wrote:
[Anyone know more about this one? "Homonymous" in this context sounds a tad oily.]
From: mjk@reimari.uwasa.fi (Mika Koykka) Newsgroups: comp.archives.msdos.announce Subject: krypt13i.zip Enkryptonator: Homonymous key encryption system, R. Newton Date: 15 Jul 1996 11:32:39 +0300 Lines: 82
Thank you for your contribution. This upload is now available as 60605 Jul 2 22:10 ftp://garbo.uwasa.fi/pc/crypt/krypt13i.zip
: Date: Sun, 14 Jul 1996 15:10:55 -0500 : From: Enkryptonator <enkrypt@flash.net> : To: pc-up@uwasa.fi : Subject: krypt13i.zip Homonymous key encryption uploaded : : I mailed a previous Email today, but it contained a typo in the file name : uploaded. : this message contains no such typo. : : File name: : KRYPT13i.ZIP : Enkryptonator: Homonymous key encryption system. : Replaces: : KRYPT12.ZIP : Suggested Garbo directory: : crypt : Uploader name & email: : Richard Newton, enkrypt@flash.net : Author or author company: : Richard Newton : Email address: : enkrypt@flash.net : Surface address: : Box 866292 Plano Tx 75086 USA. : Special requirements: : Developed on MS-DOS 386 platform. : Math co-processor recommended, but not required. : Shareware payment required from private users: : Yes, but not from students. : Shareware payment required from corporates: : Yes. : Distribution limitations: : None : Garbo CD-ROM distribution allowed without extra preconditions: : Yes. : Demo: : No. : Nagware: : No, Displays none of the behavior described in your : instructions. : Self-documenting: : Yes. : External documentation included: : Yes, about 70Kb (unzipped). : Source included: : No. : Size: : 60kb zipped. : 10 lines description: : : Enkryptonator is a newly developed encryption system based on the : principles of homonymous key cryptography invented by Enkryptonator Co. : Homonymous key systems are an exiciting, new breakthrough, that solve : the 'key management' problem without resorting to 'public key' : cryptography. No more unwieldy, impossible to remember, binary keys. : Enkryptonator is easy to use. Because of Enkryptonator's unique design : no one who intercepts your encryption in an unauthorized manner can : decrypt your file -- even if he knows the key of encryption! Everyone : has a right to privacy and Enkryptonator will provide you a means of : securing your personal and private concerns from unwanted intruders. : : Long description: : : This is the 1.3 International Shareware version of Enkryptonator. : The international version will only allow a single key of encryption : in order prevent running a-foul of US export control regulations on : the export of encryption technology. : : Version 1.3 introduces a 5% speed improvement and minor changes in : messaging. Version 1.3 is incompatible with version 1.2 and version : 1.1. These are the only code changes. The most significant reason for : releasing 1.3 is to provide users with more comprehensive and updated : user documentation.
................................................................. Mika Koykka, mjk@uwasa.fi http://www.uwasa.fi/~mjk/ Moderating at garbo.uwasa.fi http://garbo.uwasa.fi/ FTP archives Computer Centre, University of Vaasa, Box 700, FIN-65101 Finland
-- "Your wish is my command, if you know what's good for you, bitch." - William Shakespeare (Or perhaps it was his brother Fred who said that.)
- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Jeremey Barrett Senior Software Engineer jeremey@forequest.com The ForeQuest Company http://www.forequest.com/ "less is more." -- Mies van de Rohe. Ken Thompson has an automobile which he helped design. Unlike most automobiles, it has neither speedometer, nor gas gage, nor any of the numerous idiot lights which plague the modern driver. Rather, if the driver makes any mistake, a giant "?" lights up in the center of the dashboard. "The experienced driver", he says, "will usually know what's wrong." -- 'fortune` output -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMeskYC/fy+vkqMxNAQFybAQAh7ZC0fHK8OWv3VLS5x5bl023cbXZPXFU HXy3e0jH2rMTM2SPFfp/2hwLjx+msoL6cguV+duDf7x1dqgsE+zEHshx1JKCvLUh 1LwJ9N0iNWErBJqGbt2l5LSI1d98VcOuJ6OO/Sa0VCmJtcqF4dnvDpkb3XdD3J/z 9QwCMsSEnaQ= =Iuxo -----END PGP SIGNATURE-----