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EMV-Compatible Offline Mobile Payment Protocol with Mutual Authentication.

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  • 1Department of Information and Telecommunications Engineering, Ming-Chuan University, Taoyuan 33350, Taiwan. deer@mail.mcu.edu.tw.

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Summary
This summary is machine-generated.

This study introduces a new mobile payment protocol (EOPMA) to prevent credit card fraud. EOPMA enhances existing EMV protocols by using reverse hash chains to manage offline transactions and prevent exceeding credit limits.

Keywords:
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Area of Science:

  • Computer Science
  • Information Security

Background:

  • Existing EMV credit card protocols like EPMAR have vulnerabilities.
  • EPMAR fails to address credit quota overruns from multiple offline transactions, exceeding risk control limits.

Purpose of the Study:

  • To propose an enhanced EMV-compatible offline mobile payment protocol (EOPMA).
  • To address the limitation of credit quota overruns in existing protocols during multiple offline transactions.

Main Methods:

  • Developed EOPMA, an EMV-compatible offline mobile payment protocol with mutual authentication.
  • Implemented a reverse hash chain technique to ensure payment integrity.
  • Included an offline authorization certificate for real-time merchant verification.

Main Results:

  • EOPMA effectively prevents credit quotas from being exceeded due to multiple offline payments.
  • The protocol ensures real-time transaction verification by merchants.
  • Security and performance analyses demonstrate the protocol's effectiveness.

Conclusions:

  • EOPMA enhances the security and reliability of EMV transactions in retail environments.
  • The protocol is compatible with the EMV standard, ensuring wide applicability.
  • Formal verification using Gong-Needham-Yahalom logic confirms EOPMA's correctness.