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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 48926 (05)
- University: Sharif University of Technology
- Department: Electrical Engineering
- Advisor(s): Mohajeri, Javad
- Abstract:
- With the increase in the usage of wireless networks and smart grid networks and their applications, need for broadcast transmission has been increased dramatically. In order to use these communication, first we need to secure them by cryptographic methods. As authentication is one of the most important aspect of security, introducing secure broadcast authentication schemes are critical. Because of the resources constrainted nodes of these network, it is important to use light cryptographic methods with high security in these schemes. In this work, after analyzing related works, we introduce a new symmetric broadcast authentication scheme which is more efficient in term of memory consumption than other existing schemes. After that we introduce a new multi-sender attribute based broadcast authentication scheme. beside low computation overhead need for it's receivers, this new scheme has additional property which is that the sender will remain anonymous through protocol. Also because of the promotions of new applications which they need to broadcast their messages in an authenticated encrypted manner, we introduce two new broadcast signcyption scheme. these two new schemes are more efficient in terms of computation and communication overheads
- Keywords:
- Digital Signature ; Broadcost Services ; Authentication ; Message Authentication Code ; Signcryption ; One Time Signature ; Service Attack Denial
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