Author
S. K. Setua
Bio: S. K. Setua is an academic researcher from University of Calcutta. The author has contributed to research in topics: Payment gateway & Anonymity. The author has co-authored 1 publications.
Papers
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01 Jan 2016
TL;DR: The proposed system secures the transactions not only by the nature of the curve but also makes use of the hash function to enhance the desired security measure and ensures mutual authentication, anonymity, non-repudiation and traceability of the users.
Abstract: The present scenario in the area of e-commerce the most popular term is E-cash. E-cash is developed to allow fully anonymous secure electronic cash transfer to support online trading between buyers and sellers. E-cash transfer system has helped us to make transaction electronically. In this paper we propose an elliptic curve based secure e-cash payment protocol. The proposed system secures the transactions not only by the nature of the curve but also makes use of the hash function to enhance the desired security measure. It also ensures mutual authentication, anonymity, non-repudiation and traceability of the users.
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TL;DR: DOT-M, a practical dual offline transaction scheme designed for the mobile device user as either a payer or a payee, and six security properties of the scheme are analyzed under realistic assumptions and the security analysis and experimental results indicate that the scheme could meet the practical requirement of CBDC o﷽ine transaction for mobile users from both aspects of security and efficiency.
Abstract: . In recent years, many major economies have paid close attention to central bank digital currency (CBDC). As an optional attribute of CBDC, dual offline transaction is considered to have great practical value under the circumstances for payment without network connection. However, there is no public report or paper on how to securely design or implement the dual offline transaction function specifically for CBDC. In this paper, we propose DOT-M, a practical dual offline transaction scheme designed for the mobile device user as either a payer or a payee. Precisely, adopting secure element (SE) and trusted execution environment (TEE), the architecture of trusted mobile device is constructed to protect security-sensitive keys and execution of the transaction protocol. According to the trusted architecture, the data structure for offline transaction is designed as well. On this basis, we describe the core procedures of DOT-M in detail, including registration, account synchronization, dual offline transaction, and online data updating. We also enumerate the exceptional situations that may occur during the dual offline transaction, and give specific handling methods for each situation. Moreover, six security properties of the scheme are analyzed under realistic assumptions. A prototype system is implemented and finally tested with possible parameters. The security analysis and experimental results indicate that our scheme could meet the practical requirement of CBDC offline transaction for mobile users from both aspects of security and efficiency.