Decentralized Privacy-Preserving Netting Protocol on Blockchain for Payment Systems

Symmetric Blind Decryption with Perfect Secrecy

Journal of Computer Networks and Communications ◽

10.1155/2017/6575907 ◽

2017 ◽

Vol 2017 ◽

pp. 1-15

Author(s):

Juha Partala

Keyword(s):

Text Message ◽

Oblivious Transfer ◽

Privacy Preserving ◽

Modular Arithmetic ◽

Payment Systems ◽

Plain Text ◽

Perfect Secrecy ◽

Definition Of

A blind decryption scheme enables a user to query decryptions from a decryption server without revealing information about the plain-text message. Such schemes are useful, for example, for the implementation of privacy-preserving encrypted file storages and payment systems. In terms of functionality, blind decryption is close to oblivious transfer. For noiseless channels, information-theoretically secure oblivious transfer is impossible. However, in this paper, we show that this is not the case for blind decryption. We formulate a definition of perfect secrecy of symmetric blind decryption for the following setting: at most one of the scheme participants is a passive adversary (honest-but-curious). We also devise a symmetric blind decryption scheme based on modular arithmetic on a ring Zp2, where p is a prime, and show that it satisfies our notion of perfect secrecy.

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FPs Await Fixes to TRICARE Referral, Payment Systems

Family Practice News ◽

10.1016/s0300-7073(07)71283-5 ◽

2007 ◽

Vol 37 (21) ◽

pp. 1-50

Author(s):

JANE ANDERSON

Keyword(s):

Payment Systems

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Financial technologies in the field of retail payments: Current trends and perspectives in EU and Russia

Voprosy Ekonomiki ◽

10.32609/0042-8736-2018-3-48-63 ◽

2018 ◽

pp. 48-63 ◽

Cited By ~ 1

Author(s):

D. V. Trofimov

Keyword(s):

European Union ◽

Systems Development ◽

Competitive Environment ◽

The European Union ◽

Payment Systems ◽

Payment Card ◽

Current Trends ◽

Retail Payments

The article analyzes tendencies of national payment systems development in the European Union and Russia: electronic and deposit money, bank cards, financial technologies in the field of retail payments. The author identifies factors that stimulate the development of cashless retail payments and the national payment card systems in the European Union, as well as the problems and prospects of this sector forming in Russia. Recommendations on the development of a competitive environment and financial technologies in the field of retail payments in Russia are proposed.

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PROSPECTS FOR THE DEVELOPMENT OF THE LEGAL MECHANISM FOR THE FUNCTIONING OF PAYMENT SYSTEMS

Пробелы в Российском законодательстве ◽

10.33693/2072-3164-2020-13-3-079-084 ◽

2020 ◽

Vol 13 (3) ◽

pp. 079-084

Author(s):

ELIZAVETA SALINA ◽

Keyword(s):

Legal Framework ◽

Legal Regulation ◽

Payment System ◽

State University ◽

Payment Systems ◽

Proper Functioning ◽

Money Transfer ◽

Level Of Significance ◽

Transfer Services ◽

Legal Mechanism

1 Lomonosov Moscow State University, Moscow, Russia The presented research reveals an approach to the construction of a legal mechanism for the functioning of payment systems. The proposed approach is based on the application of the principles of legal regulation. The purpose of a work is to determine the existing legal mechanism for the functioning of payment systems, identify its drawbacks and propose a new approach to legal regulation to ensure the proper functioning of payment systems. The proposed approach to legal regulation takes into account the specifics of the functioning of payment systems, which consists in the presence of three elements in its activities: institutional, procedural and organizational. These elements reflect the subject structure of the payment system, the process of providing money transfer services by them, and the ways in which payment system entities interact during providing payment services. Each of the elements must be defined within the legal framework of the payment system to ensure its proper functioning. The proposed principles of legal regulation take into account the features of these elements, in particular, the principles are classified into three groups, depending on the element they affect. The paper describes ways to implement the principles in the legal mechanism: the possibility of their direct application, depending on the type of significance of the payment system, is analyzed. It is also concluded that the implementation of the principles in the legal mechanism will reduce the regulatory burden on payment systems by using an approach depending on the level of significance of the payment system. The paper defines the role of the principles, which is that the principles allow to eliminate the legal gaps in the legislation on the national payment system, and prevent the emergence of new gaps.

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