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An Improved Fair E-cash Scheme Based on RSA Blind Signature

Hua Ze

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Abstract

This paper presents an improved off-line e-cash system with controllable anonymity based on Jules's trustee-based tracing mechanism.The system ensures the user to make a digital signature of would-be payment by his own secret code but the e-cash somehow owned legally or illegally to fail to spend.And the bank is off-line when the user spends e-cash,and the TTP is also off-line when the user applies for e-cash.All the functions improve the safety and practicality of the system.

About this research paper

What this paper is about

This paper presents an improved off-line e-cash system with controllable anonymity based on Jules's trustee-based tracing mechanism.The system ensures the user to make a digital signature of would-be payment by his own secret code but the e-cash somehow owned legally or illegally to fail to spend.And the bank is off-line when the user spends e-cash,and the TTP is also off-line when the user applies for e-cash.All the functions improve the safety and practicality of the system.

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Available abstract

This paper presents an improved off-line e-cash system with controllable anonymity based on Jules's trustee-based tracing mechanism.The system ensures the user to make a digital signature of would-be payment by his own secret code but the e-cash somehow owned legally or illegally to fail to spend.And the bank is off-line when the user spends e-cash,and the TTP is also off-line when the user applies for e-cash.All the functions improve the safety and practicality of the system.

Key concepts: Electronic cash, Anonymity, Blind signature, Cash, Tracing, Computer security, Digital signature, Payment

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