Re: Stream Cipher Like SEAL Wanted ....

From: Rick Wash (rwash_at_citi.umich.edu)
Date: 06/18/03 

Date: Wed, 18 Jun 2003 12:52:31 GMT

In article <20030618081619.23300.00000929@mb-m26.aol.com>, Mrsjunecarey wrote:
>>We can't practically do this of course, but then i don't think the OTP
>>is particularly practical either due the huge amount of key required.
>>
>>Yours,
>>
>>Simon.
>
> With the availability of writable mass-storage (CD, DVD etc), OTP is practical.

I'd disagree. Even assuming that you can distribute these keys, where exactly
are you gonna find 10 billion truely random bits without resorting to some
PRNG on the backend? And that's not even including the fact that you still
need integrity and authentication......

  Rick

Relevant Pages

  • Re: Encryption algo
    ... >> theoretically secure encryption, which no amount of computation ... because the ciphertext simply doesn't imply the ... By 'OTP' I mean an ideal OTP. ...
    (sci.crypt)
  • Re: Stream Cipher Like SEAL Wanted ....
    ... >is particularly practical either due the huge amount of key required. ... With the availability of writable mass-storage, OTP is practical. ... But to do this means having to meet in person or use tamper-proof ... packaging/post. ...
    (sci.crypt)
  • Re: Stream Cipher Like SEAL Wanted ....
    ... Mrsjunecarey wrote: ... > row you delete the OTP and render the system unusable. ... nothing that a CD /itself/ can do to object or to protect itself if it's ... inserted into a standard PC drive. ...
    (sci.crypt)
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