A new efficient optimistic fair exchange protocol without random oracles

Similar items

• Efficient Optimistic Fair Exchange Secure in the Multi-user Setting and Chosen-Key Model without Random Oracles

  Scholarly record2008CT-RSAQiong Huang, Guomin Yang, Duncan S. Wong, Willy Susilo

  Optimistic fair exchange is a kind of protocols to solve the problem of fair exchange between two parties. Almost all the previous work on this topic are provably secure only in the random oracle model. In PKC 2007, Dodis et al. considered optimistic fair exchange in a multiuser

• An optimistic fair exchange protocol and its security in the universal composability framework

  Scholarly record2008IJACTYusuke Okada, Yoshifumi Manabe, Tatsuaki Okamoto

  Fair exchange protocols allow both or neither of two parties to obtain the other’s items, and this property is essential in e-commerce. In this paper, we construct an optimistic fair exchange protocol that is applicable to any digital signature by prescribing three forms of signa

• Further Observations on Optimistic Fair Exchange Protocols in the Multi-user Setting

  Scholarly record2010Public Key CryptographyXinyi Huang, Yi Mu, Willy Susilo, Wei Wu

  Recent research has shown that the single-user security of optimistic fair exchange cannot guarantee the multi-user security. This paper investigates the conditions under which the security of optimistic fair exchange in the single-user setting is preserved in the multi-user sett

• Optimistic Fair Exchange Protocol for E-Commerce

  Scholarly record2005Yusuke Okada, Yoshifumi Manabe

  For e-commerce payments, fair exchange is one of the essential problems. The optimistic fair exchange protocol allows two parties to efficiently exchange items so that either each party gets the other’s item or neither does. We propose a new optimistic fair exchange protocol that

• A traceable optimistic fair exchange protocol in the standard model

  Article2015The ISC International Journal of Information SecurityR. Ganjavi, M. Rajabzadeh Asaar, M. Salmasizadeh

  An Optimistic Fair Exchange (OFE) protocol is a good way for two parties to exchange their digital items in a fair way such that at the end of the protocol execution, both of them receive their items or none of them receive anything. In an OFE protocol there is a semi-trusted thi

• ATraceable Optimistic Fair Exchange Protocol in the Standard Model

  Scholarly record2015Ramin Ganjavi, Maryam Rajabzadeh Asaar, Mahmoud Salmasizadeh

  An Optimistic Fair Exchange (OFE) protocol is a good way for two parties to exchange their digital items in a fair way such that at the end of the protocol execution, both of them receive their items or none of them receive anything. In an OFE protocol there is a semi-trusted thi