In many pairing-based protocols often the evaluation of the product of many pairing evaluations is required. In this paper we consider methods to compute such products efficiently. Focusing on pairingfriendly fields in particular, we evaluate methods for the Weil, Tate and Ate pairing algorithms for ordinary elliptic curves at various security levels. Our operation counts indicate that the mini...

The 128-bit blockcipher CLEFIA is known to be highly efficient in hardware implementations. This paper proposes very compact hardware implementations of CLEFIA-128. Our implementations are based on novel serialized architectures in the data processing block. Three types of hardware architectures are implemented and synthesized using a 0.13 μm standard cell library. In the smallest implementatio...