DIGITAL SIGNATURE ALGORITHM TO MAINTAIN PERFECT FORWARD SECRECY (PFS) USING HYPERELLIPTIC CURVE CRYPTOSYSTEM
Abstract
Key management plays a major role in public key cryptosystem, especially using session keys changing the session key from time to time enhances the robustness of the cipher at every stage of its transmission from one end to the other. The mission of protecting the session keys against the adversary can be achieved by perfect forward secrecy (PFS). The present paper explains the digital signature algorithm with perfect forward secrecy (PFS) basing on Hyper Elliptic Curve Cryptosystem. Hyper Elliptic Curve Cryptosystem (HECC) provides equal security level as other conventional public key cryptosystems with shorter key length. The proposed digital signature algorithm strengthens the cipher in all directions of confidentiality authentication and integrity.