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Re: 256-bit Camellia vs 256-bit AES - Which is better?



On Tue, Feb 17, 2009 at 07:08:31PM -0500, Shailesh Rangari wrote:
> - both use the 'Fiestel Network' (first used in Lucifer & DES). Its  
> essence is Decryption is done by Reversing the order of Encryption.

No, AES uses a SP network. DES uses a Feistel Network.

> That leaves us with Side Channel Cryptanalytic Attacks on AES or for  
> that matter any other crypto system. These attacks are against the  
> Implementation of the Crypto and not on the Cipher itself.

There already was successful side channel attacks agaist AES. The Skein
team decided to don't do any table lookups in there new block cipher to
defeat this attacks.

Bastian

-- 
We have phasers, I vote we blast 'em!
		-- Bailey, "The Corbomite Maneuver", stardate 1514.2


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