Diebold Inc.

2003-09-13 Thread R. A. Hettinga
I wonder if there are any mirrors of this out there? Cheers, RAH --- begin forwarded text Status: U Date: Fri, 12 Sep 2003 18:36:13 -0700 From: Elias [EMAIL PROTECTED] User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.2) Gecko/20021120 Netscape/7.01 To: Fork [EMAIL

quantum hype

2003-09-13 Thread martin f krafft
Dear Cryptoexperts, With http://www.magiqtech.com/press/navajounveiled.pdf and the general hype about quantum cryptography, I am bugged by a question that I can't really solve. I understand the quantum theory and how it makes it impossible for two parties to read the same stream. However,

Re: quantum hype

2003-09-13 Thread David Wagner
martin f krafft wrote: So MagiQ and others claim that the technology is theoretically unbreakable. How so? If I have 20 bytes of data to send, and someone reads the photon stream before the recipient, that someone will have access to the 20 bytes before the recipient can look at the 20 bytes,

Re: quantum hype

2003-09-13 Thread martin f krafft
also sprach David Wagner [EMAIL PROTECTED] [2003.09.13.2306 +0200]: You're absolutely right. Quantum cryptography *assumes* that you have an authentic, untamperable channel between sender and receiver. The standard quantum key-exchange protocols are only applicable when there is some other

Re: quantum hype

2003-09-13 Thread David Wagner
On 09/13/2003 05:06 PM, David Wagner wrote: Quantum cryptography *assumes* that you have an authentic, untamperable channel between sender and receiver. Not true. The signal is continually checked for tampering; no assumption need be made. Quantum crypto only helps me exchange a key