Identity-Based Multi-Signcryption Scheme
Sun Sheng-he · Dianzi xuebao · 2007
Signcryption is a cryptographic protocol that combines both the functions of confidentiality and authentication in a logical step,and the computational costs and communication overheads should be lower than the traditional signature-then-encryption approach.So signacryption has good prospects in the direction of e-commerce.Based on bilinear pairing on Elliptic Curve,a new multi-signacryption scheme is proposed.The scheme could decrease the cost of building and managing public key infrastructures;the expense of the users' management of public-key and their certificates is avoided.We had a safety of analysis,that the scheme is proved to be secure assuming the bilinear Diffle-HeUem problem is hard.