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By Kenji Imamoto, Jianying Zhou, Kouichi Sakurai (auth.), Sihan Qing, Wenbo Mao, Javier López, Guilin Wang (eds.)
The 7th foreign convention on details and Communications - curity,ICICS2005,washeldinBeijing,China,10-13December2005. TheICICS convention sequence is a longtime discussion board for changing new study rules and improvement leads to the components of knowledge defense and utilized crypt- raphy. The ?rst occasion begun right here in Beijing in 1997. due to the fact then the convention sequence has been interleaving its venues in China and the remainder of the realm: ICICS 1997 in Beijing, China; ICICS 1999 in Sydney, Australia; ICICS 2001 in Xi’an, China; ICICS 2002 in Singapore; ICICS 2003 in Hohhot urban, China; and ICICS 2004 in Malaga, Spain. The convention court cases of the previous occasions have - methods been released by way of Springer within the Lecture Notes in machine technology sequence, with quantity numbers, respectively: LNCS 1334,LNCS 1726,LNCS 2229, LNCS 2513, LNCS 2836, and LNCS 3269. ICICS 2005 used to be backed by way of the chinese language Academy of Sciences (CAS); the Beijing typical technological know-how starting place of China lower than furnish No. 4052016; the nationwide traditional technological know-how starting place of China less than promises No. 60083007 and No. 60573042;the NationalGrandFundamentalResearch973ProgramofChina less than supply No. G1999035802, and Hewlett-Packard Laboratories, China. The convention used to be equipped and hosted by means of the Engineering learn heart for info protection expertise of the chinese language Academy of Sciences (ERCIST, CAS) in co-operation with the overseas Communications and knowledge safety organization (ICISA). the purpose of the ICICS convention sequence has been to o?er the attendees the chance to debate the newest advancements in theoretical and useful - pects of data and communications security.
Read or Download Information and Communications Security: 7th International Conference, ICICS 2005, Beijing, China, December 10-13, 2005. Proceedings PDF
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Additional resources for Information and Communications Security: 7th International Conference, ICICS 2005, Beijing, China, December 10-13, 2005. Proceedings
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Related Work. Several non-repudiation and fair exchange protocols have been previously proposed. e. those with only three message exchanges in honest protocol runs, have been found flawed [4, 20]. A recent optimized protocol suggested by Zhou [20], developed on previous ones, remarkably does not suffer from previously reported problems. But it has an elaborate dispute resolution phase requiring both participants to attend the court. We believe an evidence of receipt or origin must be self sufficient to settle a dispute, which requires the addition of a fourth message in our protocol.
The properties below are thus defined to describe “fairness for P ”. The corresponding properties for Q are defined in a similar way. e. whenever initP (k, m) has happened, but not yet terminateP (k, m), there is a path to terminateP (k, m) that does not contain com X actions. This means that, whenever initP (k, m) has happened, but not yet terminateP (k, m), and assuming RCC, terminateP (k, m) will happen. The remaining properties concern safety so we use the normal Dolev-Yao intruder. (¬evidenceQ (k, m))∗ .
This protocol provides a vehicle for ttp to understand whether the protocol was correctly carried out. ttp first computes QA = H1 (IDA ), HA = H2 (IDA , m, UA ), and QB = H1 (IDB ), HB = H2 (IDB , m, UB ), and then checks e(P, VB ) = e(Ppub , QB ) · e(UB , HB ), and e(P, VA ) = e(Ppub , QA ) · e(UA , HA + P K). If both are valid, ttp extracts VA = VA − xUA , and sends σAlice = (m, UA , VA ) to Bob and sends σBob = (m, UB , VB ) to Alice. 5 Conclusion We propose an efficient and optimistic fair exchange protocol of identity-based signatures and give a security proof with tight reduction in the random model.