Attribute Based Multisignature Scheme for Wireless Communications

الملخص EN

With rapidly development of wireless communication, more mobile devices are used in our dailylife.

Although the need for accessing a wireless network is evident, new problems, such askeeping and preserving user identity’s privacy, should be greatly concerned.

Attributebased signature scheme is an important cryptographic primitive which provides a powerful wayfor user to control their privacy.

In wireless environment, the capacity of wireless channel isalso valuable resources which is limited.

More information can be transmitted through thewireless channel when the cost of using signature to verify the message becomes less.

In order toreduce the bandwidth needed to transmit attribute based signatures and keep signer’s privacy,attribute based multisignature scheme (ABMS) was proposed in this paper.

Moreover, weformalize and construct the ABMS.

Our scheme is existentially unforgeable against chosenmessage attack on Computational Diffie-Hellman (CDH) assumption in the standard model.

The simulation shows that our ABMS scheme is more appropriate for wireless communicationto guarantee integrity of the data.