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۱Extended Prêt à Voter with Discretely–Chaotic Family of Permutations
اطلاعات انتشار: بیستمین کنفرانس مهندسی برق ایران، سال
تعداد صفحات: ۶
this paper presents an e–voting model based on Prêt à Voter. Modifications caused a considerable improvement in security and flexibility of the proposed model. Also it has abetter chance of public acceptance. In the proposed model, we modified the ballot form and this modification eliminatespossibility of chain voting attack. Also we apply discretelychaotic family of permutations to generate a completely random order of candidates for each ballot form. These and othermodifications caused the proposed model be able to handle k of L and ranked voting; this is an important contribution. The role of registration authority has been distributed among many entities. This is not new but prevents them from fraud or collusion with a voter. Also, this RAs group’s signature on theballot forms helps to gain one of the most important advantages of proposed model: Public verifiability<\div>

۲A Novel Lattice–Based Proxy Signature Scheme
اطلاعات انتشار: بیستمین کنفرانس مهندسی برق ایران، سال
تعداد صفحات: ۴
In a proxy signature scheme, an original signer delegates his\her signing capability to a proxy signer and then the proxy signer can sign messages on behalf of the originalsigner. The security of many proxy signature schemes that have been proposed depends, either directly or indirectly, on eitherthe difficulty of big integers factoring problem or the difficulty of finding discrete logarithm in a finite group. These types of schemes cannot resist quantum attacks. In this paper, wepropose a new lattice–based proxy signature scheme which can resist quantum attacks. The proposed scheme is based on theGGH–signature scheme and also satisfies all the security requirements of proxy signature schemes<\div>

۳New Proxy Signature Scheme with Fast Revocation for Electronic Cheques
اطلاعات انتشار: دومین همایش ملی پژوهش های کاربردی در علوم کامپیوتر و فناوری اطلاعات، سال
تعداد صفحات: ۷
In a designated verifier proxy signature scheme, signature is issued for a specific receiver and only he\she can check the validity of the signature. Proxy signatures have important applications in Electronic commerce, specifically in Electronic cheques. In this paper, we provide a practical scenario which uses a new secure proxy signature scheme for Electronic cheques. Our scheme is a designated verifier proxy signature scheme with fast revocation possibility. In fact, this means that the Electronic cheque is only verifiable by a specified bank and also on the other hand, anytime the cheque owner wants can disqualify the capability of cheques signing from his\her agent whom called proxy signer. Proxy signature used in this paper has provable security in the standard model and satisfies all other security requirements of a proxy signature.<\div>
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