Re: Should be in crypto for criminals Re: just stupid?

From: David A. Scott (daVvid_a_scott_at_email.com)
Date: 07/17/05 

Date: Sun, 17 Jul 2005 18:49:14 +0000 (UTC)

Joe Peschel <jpeschel@no.spam.org> wrote in
news:Xns969689BB82D0Cfa0khgj7ji8i8jo9@216.168.3.44:

>
> Say, the Whiskey-Tango cipher is touted as having a key of 128 bits.
> If an attack is found that takes only 2 ^80 ciphertexts, that cipher
> is broken. Could a Whiskey-Tango message be recovered? Probably not,
> at least not by most attackers, a governemnt, maybe. I think Joe
> Ashwood has found an even more devastating attack than my fictitious
> W-T example.
>
>

 I would say the Wiskey-Tango cipher then may use a key space of 128 bits
bit its actaully an effective key space of 80 bits. But that does not
mean its broken. Same as RSA we talk about 1000 bit keys but this is
not size of the true key space its much smaller.

David A. Scott 

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