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In this paper, an efficient and secure strong designated verifier signature with message recovery scheme is presented using elliptic curve and bilinear pairing. In our scheme, the signer implants a message on the signature and sends it without message to the verifier, who then extracts the original message and validates the message-signature pair. However, an outsider is unable to verify the message-signature...
Diffie and Hellman first invented the public key cryptosystem (PKC) wherein the public key infrastructure (PKI) is used for the management of public keys; however, the PKI-based cryptosystems suffer from heavy management trouble of public keys and certificates. An alternative solution to the PKI is Shamir’s identity-based cryptosystems (IBC), which eliminate the need of public key certificates; however,...
In a designated verifier proxy signature scheme, the original signer delegates his signing capability to a designated person, called proxy signer. The proxy signer generates a valid signature, called proxy signature on behalf of the original signer. The designated verifier checks the correctness of the signature and convinces the original signer's agreement on the signed message. In this paper, we...
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