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Re: Q: "gisha yashira" for Bank Leumi



Sorry for jumping into the discussion so late, but I actually happen
to have some real info about Glisha Yeshira. This service uses
something called private wire which is developed by Algorithmic
Research which is an israeli company situated in Petach Tikva.

Here is a letter and their reply from a question precisely concerned
with the use of their services under Linux. I didn't try to follow it
up, e.g. by asking for a protocol description, but perhaps someone
else would like to contact them:

My letter:

  From:          dov@Orbotech.Co.IL
  Date:          Wed, 15 Apr 1998 09:58:52 +0300 (IDT)
  To:            info@arx.com
  Subject:       Private wire client for Linux?
  Date:          Wed, 15 Apr 98 09:58:52 IDT
 
  Shalom,
  
  I recently signed up with Bank Leumi's Glisha Yeshira and was supplied 
  with a complete set of Windows/95 user. As I don't use Windows95 if
  I have a choice, I wonder if you have a Linux interface of your
  private wire software? If not, I would be happy enough with the
  technical specifications of how the encryption is conducted, so that
  perhaps I can write it myself. (We were recently honored with a
  seminar by Ilan Zisser from Algorithmic Research describing the 
  importance of open protocols but secure keys. Thus I guess that you
  provide technical descriptions to whoever asks, no?)
  
  Regards,
  --
                                                                      ___
  Dov Grobgeld                        | Email: dov@orbotech.co.il    /+  \  PCB
  Algorithms Department, Orbotech     | Phone: +972-8-9423882        \  +/  AOI
  Yavne 70651, Israel                 | Fax:   +972-8-9423775       __| |
                 Disclaimer: All views above are mine alone.        ____|
  
Their reply:

  From: "Gil Cordova" <gil@arx.com>
  To: dov@Orbotech.Co.IL
  Subject: Re: Private wire client for Linux?
  Date: Sun, 19 Apr 1998 12:43:00 UTC+0200

  Hello,

  Thanks for your interest. Your assumption regarding the Linux is 
  correct we do not have a Linux software solution.

  I do not think it would be possible for you to implement the software 
  clinet solution as it works in the PW as it involves hooking into the 
  WINSOCK (which does not exist in Linux).

  We do provide all the information on the protocol and on the key 
  exchnage. However we do this for the purpose of assuring our clients 
  that what we are doing is done securely and that they can monitor and 
  criticize our solution. For this purpose there is a 
  description of the protocol and algorithmis we are doing. 
  Obvioulsy for you to develop would require a lot more support and 
  assistance and we are not able to provide such resources.

  Thanks,

  Gil Cordova

So please call them up and try to convince them to release the specs. 
8-)

Dov