On XTEA-based Encryption/Authentication Core for Wireless Pervasive Communication

Security is an important issue in any communication systems. In particular, because of their ubiquitous nature, additional security services required in wireless pervasive communication systems need efficient hardware solutions. One of the key requirements is to reduce the circuit´s size to lower the cost involved when implementing a security ASIC core. This paper discusses the potential of employing the operationally-lean XTEA-based hash function core for encryption/authentication in medium secure systems. It is found that with the parallel implementation style proposed, the core has an area of 0.212 mm² based on 0.35 um CMOS, making it a highly compact core for pervasive applications