Improvement of identity-based authenticated encryption scheme
Cai Yantao · Computer Engineering and Applications Journal · 2011
Identity-based cryptography is a rapidly emerging approach to public-key cryptography that public keys can be arbitrary identifiers.Analyzing the existing identity-based authenticated encryption scheme which a weakness is presented—a recipient can pretend other users to send messages to him,that is,users can't authenticate whether a message's sender is true,and combining bilinear pair,an improvement of that scheme is proposed,whose security is based on the bilinear Diffie-Hellman problem.The security and efficent are analyzed.The result shows that the scheme not only overcomes the mentioned weakness,but also keeps the excellence of that scheme.