| In wireless environment, the attribute-based digital signature provide an important guarantee of security such as data authentication data integrity, and owner identity’ anonymity,which is a core technology of information security. However,To be more practical, we should concern about two aspects:The foremost one is about the attribute-based signature is anonymous,the signer could abuse this signature with the property at the same time;The other one is about the capacity of wireless channel is valuable resources which is limited,it is significant to reduce the bandwidth needed to transmit attribute based signatures.But Existing scheme can not solve these two problems simultaneously, yet these two problems are very important to the development of information security in wireless networks area, which has become urgent problems to be solved.First,identity traceable attribute-based threshold signature scheme is proposed and gives the security proof of the scheme.the scheme has a user identity anonymity and traceability. Secondly,we may face the situation of signing the same document by a group of people. Moreover, we need the ability of investigating the accountability of the signer. To meet such requirements, we propose an identity traceable attribute-based multi-signature scheme. On the basis of the attribute-based multi-signature (ABMS),by integrating the thought of traceability, we successfully prevent the signer from abusing his identity. Under the premise of ensuring the privacy of the signer, we achieve the goal of traceability. On the basis of the subgroup decision and the computational Diffie-Hellman (CDH) assumptions, we prove that the scheme is unforgeable in the standard model.Compared with the existing schemes, our scheme is traceability and suitable for solving the problem of responsibility of multi-signers.Finally,this paper points out the development prospect and the possible research direction of the Identity Traceable Attribute-based Signature Algorithm... |
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