Article

Article title NEW TECHNOLOGIES OF E-COMMERCE SYSTEMS DATA SECURITY BASED ON THE USAGE OF PSEUDORANDOM FUNCTION
Authors I.A. Kalmykov, O.I. Dagaeva
Section SECTION VI. APPLICATION INFORMATION SECURITY ISSUES
Month, Year 12, 2012 @en
Index UDC 631.8
DOI
Abstract The aim of this research is reducing of the volume occupied by the software which is needed for the effective operation of the e-money carrier (smart card) by multiple usage of the designed pseudorandom function (PRF) in different protocols which could increase the amount of cash stored in "electronic purse". The paper presents the problem which could be possibly solved by usage of the designed effective PRF in the protocol of double payment definition and draw down protocol. The implementation of the developed function uses the key log2l times smaller compared to the Naor- Rheingold PRF and its security relies on the λ-DDH assumption. Since the calculation of the designed function requires log2l times less multiplications, the main advantage of one is the usage of less memory volume for computing the function value.

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Keywords Pseudorandom function, cryptographic protocols data protection in e-commerce systems; the protocol of double payment definition; the zero-knowledge protocol.
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