Enhanced SAFER+ algorithm for bluetooth to withstand against key pairing attack

Abstract

The SAFER+-128 algorithm is the basis of all block ciphers used in Bluetooth security environment. Though the SAFER+ with key size 128 bits has yet not any practical attack on it, the pairing mechanism of bluetooth which uses this algorithm founds to be vulnerable to the brute force attack upon it. In the enhanced SAFER+ algorithm the shuffling parameter of SAFER+ has been customized in order to provide it strength against the key pairing attack. The results of the experiments and other statistical details obtained for this change are shown at the end of this paper. © 2012 Springer-Verlag.