Abstract
This paper presents the security of joint signature and hybrid encryption. The proposed scheme combines the security of a document by hybrid encryption method and authenticity by digital signatures. IDEA-RSA algorithm is used for hybrid encryption and RSA digital signature algorithm is used to obtain digital signature (D). This joint signature scheme uses encrypt-then-sign (/spl epsi/tS) instead of, sign-then-encrypt (St/spl epsi/). The security of RSA Digital Signature (D) amplifies the privacy of /spl epsi/tS. The effectiveness and correctness of the proposed scheme is illustrated through implementation and its results. The proposed scheme achieved a speed of 2.8 Mbps.
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