Method and apparatus for secure and small credits for...

Details Method and apparatus for secure and small credits for... Method and apparatus for secure and small credits for...

2004-02-06

2009-11-17

Worjloh, Jalatee (Department: 3685)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Secure transaction

C705S050000, C705S064000, C705S065000, C713S150000, C380S277000

Reexamination Certificate

active

07620606

ABSTRACT:
A method and apparatus for obtaining access to services of service providers. In one embodiment, the method comprises requesting a desired service through a foreign service provider. (101), generating a hash tree and generating a digital signature on a root value of the hash tree (102), sending the digital signature and the root value to the foreign service provider (103), providing one or more tokens to the foreign service provider with the next packet if the foreign service provider accepts the signature (105) and continuing to use the service while the foreign service provider accepts token (107).

REFERENCES:
patent: 4309569 (1982-01-01), Merkle
patent: 6339765 (2002-01-01), Maher
patent: 2001/0034839 (2001-10-01), Karjoth et al.
patent: 2001/0037250 (2001-11-01), Lefkowitz
patent: 2003/0061170 (2003-03-01), Uzo
G. Ateniese, et al., “A Practical and Provably Secure Coalition-Resistant Group Signature Scheme”; CRYPTO2000, vol. 1880 of Lecture Notes in Computer Science ACM SIGARCH Computer Architecture News, 16 pgs.

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