Razborov and Rudich have shown that so-called natural proofs are not useful for separating P from NP unless hard pseudorandom number generators do not exist. This famous result is...
We define a notion of combinatorial labellings, and show that ∆0 2 is the largest boldface pointclass in which every set admits a combinatorial labelling.
Privacy of RFID systems is receiving increasing attention in the RFID community. Basically, there are two kinds of RFID privacy notions: one based on the indistinguishability of t...
Changshe Ma, Yingjiu Li, Robert H. Deng, Tieyan Li