Cross Domain Heterogeneous Signcryption Scheme with Equality Test for WBAN

The rapid development of wireless sensors has accelerated the popularity body area network (WBAN). WBAN use multiple to collect patient’s data, and data is transferred medical cloud for processing analyzing. In order protect in cloud, some heterogeneous signcryption schemes that support equality test have been proposed. However, we observe these same cryptographic parameters different systems. addition, most cannot resist replay attack (RRA) or know session temporary key (RKSTKA). To deal with problems, this paper presents a cross domain scheme (CDSCET) WBAN. CDSCET, ciphertexts are from certificateless system public infrastructure, where two cryptosystems parameters. CDSCET can realize confidentiality, integrity, authentication, RRA RKSTKA. Moreover, compared three latest schemes, reduced total computation cost by at least 56.46%.