Re: Book Comments

amzoti wrote:
Hi All,

has anyone read the book "Innovative Cryptography"?

Thoughts?

Follow any of the implementation advice? Thoughts?

Thanks for any inputs.

~A

Since no on else seems to have an opinion,

I haven't read the book, however the second hand price of the book is about 15% of the original cover price. This suggests that original owners of the book did not think it was worth holding on to. Compare this to "The design of Rijndael" book at 70% of the original price and "Differential Cryptanalysis of the Data Encryption Standard" which now sells second hand for more than the original price.

From the excerpts and index the book seems to be about implementing a particular style of algorithms based on data dependent permutations (DDP). A check on the authors show they produced a series of such ciphers - Cobra, CIKS, SPECTR etc.

Most seem to be badly broken. "A Weight Based Attack on the CIKS-1 Block Cipher" by Kidney, Heys and Norvell another is "Related-Key Differential Attacks on Cobra-H64 and Cobra-H128" by Lee, Kim, Sung Hong, lee and Moon are available free online (google is you friend as is citeseer). Some more papers are available if you want to buy them from Springer.

It seems that with each "generation" the ciphers grew a little harder to attack but the author's didn't really take any messages of weakness with the DDP to heart.

I think it would be prudent to *not implement any cipher in the book* unless all you need is a low level of protection that would keep a moderately motivated individual at bay. If what you need is a higher level of security than you could look at GOST 28147-89 or MISTY1, both are designed with hardware in mind and is the AES finalist SERPENT.

But if what you want is some general info on how ciphers are implemented in hardware maybe the book is OK.
.

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