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Rational secret sharing shows that, in a setting with rational players, secret sharing and multiparty computation are only possible if the actual secret reconstruction round remains unknown to the parties. However, in socio-rational secret sharing, players not only are rational but also are foresighted. In other words, the secret sharing game is repeatedly played and players are only invited to each...
Recently, Pang et al. proposed a secure and efficient lightweight mutual authentication protocol [1]. Their scheme is EPC Class 1 Generation 2 compatible and based on both the cyclic redundancy codes (CRC) and the pseudo random number generator (PRNG). Although authors claimed that the proposed protocol is secure against all attacks, in this paper we utilize the Vaudenay's privacy model to prove that...
From the idea of conference key distribution was first proposed by Ingemarsson et al., many conference key distribution schemes were proposed. Conventionally, a conference key distribution system (CKDS) is used to distribute a conference key among the attending participants of a conference. Compared with most existing CKDS, conference key agreement protocol with user anonymity has more application...
In the original algebraic expression of AES (advanced encryption standard) S-Box, S-Box is a combination of a power function and an affine surjection. This S-Box provides optimum cryptographic properties. However, the original AES S-Box till has undesired property of simple description in the Galois field GF(28). It algebraic expression is spare with only nine non-zero terms which leads to concern...
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