An ID-Based Proxy Multi-signcryption Scheme from Pairings

Signcryption is a cryptographic primitive that fulfills both the functions of digital signature and public key encryption in a logical single step,at lower computational costs and communication overheads than the traditional signature-then-encryption approach. In this paper,an ID-based proxy multi-signcryption scheme from pairings,which combines a proxy multi-signature scheme with a signcryptin,is proposed.In the scheme,a proxy signcrypter can generate the proxy multi-signcryption on behalf of the original signcrypter group. Compared with the previous schemes, our scheme may have more wide applications in electronic world.