Abstract
An authenticated encryption scheme is a message transmission scheme, which sends messages in a secure and authentic way. In large message transmission, traditional authenticated encryption scheme has the disadvantage that the communication and the computation costs are too high. In 2002, Tseng-Jan proposed an efficient authenticated encryption scheme with messages linkage; that is, only a random number was used and the communication costs and the computational complexity were better than previously proposed schemes. The current paper, however, points out that Tseng-Jan’s scheme suffers from serious security faults such that any adversary can easily forge valid signature blocks and pass the receiver’s verification, and the scheme does not provide forward secrecy and non-repudiation. We also propose an improvement to the scheme to overcome the weaknesses.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.