--- begin forwarded text
Reply-To: "Victor Dostov" <[EMAIL PROTECTED]>
From: "Victor Dostov" <[EMAIL PROTECTED]>
To: "R. A. Hettinga" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Subject: Re: paycash: blind signature etc.
Date: Wed, 9 Feb 2000 18:33:39 +0300
Status: U
it's our fault with Russian, I sent to Adam English copies and we'll return
them on site asap.
Victor
----- Original Message -----
From: R. A. Hettinga <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, February 09, 2000 3:56 PM
Subject: Re: paycash: blind signature etc.
>
> --- begin forwarded text
>
>
> Date: Wed, 9 Feb 2000 00:34:43 -0500
> From: Adam Shostack <[EMAIL PROTECTED]>
> To: "R. A. Hettinga" <[EMAIL PROTECTED]>
> Cc: Digital Bearer Settlement List <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
> Subject: Re: paycash: blind signature etc.
>
> So the main document I've found (blsig.doc) is doubly obfuscated, once
> in Russian, and once in Word's .doc format. .Doc is clearly the more
> annoying of these. Are there other docs in English?
>
> Anyway, has anyone taken a look at what the system offers? It looks
> to us like its covered by Chaum's blinding patent. They even call the
> functions in schemas 1 & 2 "B" and "U", apparently for blinding and
> unblinding.
>
>
> Adam
>
>
> On Tue, Feb 01, 2000 at 06:13:57PM -0500, R. A. Hettinga wrote:
> | Thanks much to Victor Dostov and Ivan Kouznetsov for their short but
very
> | insightful discussion at DCSB of the paycash system.
> |
> | At my request, Victor has provided me with more information on the
paycash
> | transaction system, and the blinding that it does in the course of
moving
> | money around.
> |
> | It is forwarded below.
> |
> | Cheers,
> | Robert Hettinga,
> | Moderator,
> | The Digital Commerce Society of Boston
> |
> |
> | --- begin forwarded text
> |
> |
> | Reply-To: "Victor Dostov" <[EMAIL PROTECTED]>
> | From: "Victor Dostov" <[EMAIL PROTECTED]>
> | To: <[EMAIL PROTECTED]>
> | Subject: paycash: blind signature etc.
> | Date: Tue, 1 Feb 2000 01:10:32 +0300
> |
> | A more detailed description of the Paycash Internet payment system with
some
> | math is presented in the paper (13297 bt, zip-archive of rtf-document)
at
> | ftp://demo.paycash.ru/paycash.zip
> |
> | For our blind signature over RSA you can see at
> | ftp://demo.paycash.ru/blsig.zip
> |
> |
> | Also we obtained an independent experts' decision on the schemes of
blind
> | digital signature used in PayCash payment system. The examination was
done
> | for the purpose of algorithms used in the system verification, as well
as
> | patentability judgment. To accomplish such an expertise Bruce Schneier*
the
> | President of Counterpane Systems Company was invited. The basic topics
of
> | experts' decision are listed below. The whole text (zip-archive in
> | Postscript format, 27 283 bites) is available here:
> |
> | ftp://demo.paycash.ru/schneier.zip
> |
> |
> | More data is available at
> |
> | http://www.paycash.ru/new/english/
> |
> | Best regards and thanks again
> |
> | VIctor
> |
> | --- end forwarded text
> |
> |
> | -----------------
> | R. A. Hettinga <mailto: [EMAIL PROTECTED]>
> | The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
> | 44 Farquhar Street, Boston, MA 02131 USA
> | "... however it may deserve respect for its usefulness and antiquity,
> | [predicting the end of the world] has not been found agreeable to
> | experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'
>
> --
> Tired of co-workers slowing you down? Leave them behind.
> http://jobs.zeroknowledge.com
>
> --- end forwarded text
>
>
> -----------------
> R. A. Hettinga <mailto: [EMAIL PROTECTED]>
> The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
> 44 Farquhar Street, Boston, MA 02131 USA
> "... however it may deserve respect for its usefulness and antiquity,
> [predicting the end of the world] has not been found agreeable to
> experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'
>
> For help on using this list (especially unsubscribing), send a message to
> "[EMAIL PROTECTED]" with one line of text: "help".
>
--- end forwarded text
-----------------
R. A. Hettinga <mailto: [EMAIL PROTECTED]>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
44 Farquhar Street, Boston, MA 02131 USA
"... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'
