Efficient ID-based multi-proxy multi-signature scheme based on CDHP
نویسندگان
چکیده
Proxy signature is useful in situation when a user wants to authorize an agent called proxy signer to sign any document on his behalf. Multi-proxy multi-signature is one of the primitives of proxy signature. Bilinear pairing makes the system efficient and provides an ease in computation. In this paper, we propose an ID-based multi-proxy multi-signature scheme from bilinear pairings based on Computational Diffie-Hellman Problem (CDHP), replacing the certificate generation of Li and Chen’s scheme by delegation generation. Our scheme is proxy protected and computationally more efficient than the ID-based multi-proxy multi-signature scheme of Li and Chen. We also analyze the security properties of our scheme and show that the proposed scheme satisfies all the security requirements of a safe proxy signature scheme.
منابع مشابه
ID-based multi-proxy multi-signature scheme from bilinear pairing
Identity-based (ID-based) public key settings are very good alternatives for the certificate based public key settings. Proxy signatures are good tools to delegate the signing capability by original signer to any other parties. The concept of bilinear pairing is very useful in many signature protocols for the ease of computation. Here, we propose an ID-based multi-proxy multi-signature scheme u...
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