By Radu Sion, Reza Curtmola, Sven Dietrich, Aggelos Kiayias, Josep M Miret, Kazue Sako, Francesc Sebé

This quantity includes the workshopproceedings of the accompanying workshops of the 14th monetary Cryptograpy and information safeguard foreign convention 2010, hung on Tenerife, Canary Islands, Spain, January 25-28, 2010. FinancialCryptographyandData Securityis a majorinternationalforumfor examine, complex improvement, schooling, exploration, and debate relating to info coverage, with a speci?c concentrate on advertisement contexts. The c- ference covers all features of securing transactions and structures and particularly encourages unique paintings concentrating on either basic and utilized real-world deployments on all points surrounding trade safeguard. 3 workshops have been co-located with FC 2010: the Workshop on Real-Life CryptographicProtocolsandStandardization(RLCPS),theWorkshoponEthics in computing device safety learn (WECSR), and the Workshop on light-weight Cryptography for Resource-Constrained units (WLC). Intimate and colourful by way of culture, the high quality application was once no longer the one allure of FC. some time past, FC meetings were held in hugely research-synergistic destinations akin to Tobago, Anguilla, Dominica, Key West, Guadelupe, Bermuda, the Grand Cayman, and Cozumel Mexico. 2010 used to be the ?rst 12 months that the convention was once hung on ecu soil, within the Spanish Canary Islands, in Atlantic waters, a couple of miles throughout Morocco. Over a hundred researchers from greater than 20 international locations have been in attendance.

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Additional info for Financial Cryptography and Data Security: FC 2010 Workshops, RLCPS, WECSR, and WLC 2010, Tenerife, Canary Islands, Spain, January 25-28, 2010, Revised Selected Papers

Example text

1. 2 A Very Practical Instantiation: The DHAES Case The DHAES has been introduced in [1] by Abdalla, Bellare and Rogaway and has been submitted to the IEEE P1363a standard. Its aim is to propose a method to encrypt strings using the Diffie-Hellman assumption, since the standard El Gamal encryption scheme has some flaws when regarding the message as a string. It is as efficient as the standard El Gamal encryption but has more and better security properties since it has been proved to have the indistinguishability property against adaptive chosen ciphertext attacks with unlimited access to the decryption oracle (IND-CCA2).

According to [4], the maximum tag to reader (uplink) data transmission rate is 640 kbps. 01 ms) by reading 450 tags in one second [14]. Table 6. , [16,14,7]), we approximate the hardware complexity of our approach in 634 logic gates. Adding a 20% of logic gates for control purposes as recommended in [14], the final amount is of 761 logic gates (cf. Table 6). This value perfectly matches the Gen2 requirements, and it has a lower hardware complexity than other low-overhead PRNG proposals for RFID as LAMED or Grain [14,7].

As detailled in [23], these operations cannot influenced the success probability of the adversary, otherwise it is possible to exhibit a distinguisher for the IND-CPA experiment. In order to obtain a perfect simulation of all messages exchanged during the experiment, it is also necessary to modify inputs of the MAC function. For this purpose, the MAC scheme must be a pseudo random function, which is also required to avoid attacks as those presented in [6]. This is not restrictive in practice as most of MAC schemes verifies this property.

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