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Re: Thoughts on a basic encryption mode
Steve Kent says:
> I agree with the general thrust of your observations. When I
> teach my tutorial on network security, I argue in favor of per-packet
> IVs. Without their use, identical prefixes of packets are visible.
Doesn't it depend on the encryption algorithm you use? I don't think
there even *is* IV for a stream cipher, for example!
> pointing out that the FIPS does allow for not using a per-packet IV
> with CBC mode, which addresses the concern of Phil and others who want
> to be frugal about bandwidth in wireless environments.
Why go too far to wireless? (:-)
My plain CSLIP wouldn't appreciate extra 8 bytes!
--
Regards,
Uri uri@watson.ibm.com acheron!angmar!uri N2RIU
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<Disclamer>
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