Can Eve repeat?

[David Honig]

At 08:34 AM 9/24/03 -0400, Greg Troxel wrote:
>A consequence of the infinite CPU assumption is that ciphers like AES,
>hash functions like SHA-1, etc. are all considered useless by the
>purist QC community.  Thus, people talk about doing authentication
>with families of universal hash functions.  This has the practical
>problem that the original (courier-transported) secret keying material
>for authentication is used up, and the typical scheme talked about is
>using some of the agreed-upon QKD bits to replenish the authentication
>keying material.  This does not seem very robust.  

Those couriers are carrying one-time pad CDs, in a QC world.

Do not try to pet their dogs, BTW.





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