[cryptography] Minimally Sufficient Cryptosystem

Scott Guthery sbg at acw.com
Tue Jul 5 08:34:59 EDT 2011

Adi Shamir gave a talk at MIT last week at which I think he said that the 
following cryptosystem was minimally sufficient:

XOR Key / Permutation / XOR Key

He seemed to me to imply that (informally speaking) any additional 
complexity would be more likely to provide attack opportunities than not.

Perhaps anybody else that was there or is familiar with Shamir's work along 
this line might comment.

Cheers, Scott 

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