Identity-Based Designated Verifier Proxy Signature Scheme and Its Application to Health Care

Identity-based designated proxy signature is a type of digital signature that permits a designated proxy signer to affix his signature to a message without revealing the signer's private key. IBPS has gained substantial interest in recent years because of its applications in secure communication, e-commerce, electronic voting, healthcare, etc. The security of these schemes has been extensively studied in the literature to protect against various attacks such as forgery attacks, existential forgery attacks, and insider attacks in the literature. In this paper we present DVPS signature scheme that is unforgeable with respect to type 5 challenger attack and type 6 challenger attack and discuss the applications of DVPS schemes in healthcare.