Electronic cash controlled by non-homomorphic signatures

Details Electronic cash controlled by non-homomorphic signatures Electronic cash controlled by non-homomorphic signatures

2000-12-11

2009-12-29

Korzuch, William R (Department: 2431)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S185000, C726S005000, C726S017000, C380S255000, C705S065000, C705S075000, C705S076000, C705S077000

Reexamination Certificate

active

07640432

ABSTRACT:
A method and system for establishing and managing digital cash. This method is to emit and circulate secure electronic cash that allows to use non-homomorphic signature schemes, and avoids having to use blind signature techniques. With one specific embodiment, the method provides anonymous digital cash, and comprises the steps of providing an entity with a secure coprocessor, a user establishing a secure channel to a program running on said coprocessor, and the user sending a coin to be digitally signed to the coprocessor.

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