Device and method for authenticating user's access rights to...

Details Device and method for authenticating user's access rights to... Device and method for authenticating user's access rights to...

2006-11-14

2006-11-14

Vu, Kim (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S176000, C726S027000

Reexamination Certificate

active

07137007

ABSTRACT:
A burden caused by handling a large number of unique identifying information pieces such as authentication keys is to be lightened from both the user side and the protector side such as application creators. A proof data verification device sends authentication data to a proof data generation device. Signature data generation means and presignature data generation means in the proof data generation device cooperate with each other to generate proof data (a signature based on a discrete logarithm problem) from the received authentication data as well as held user unique identifying information and an access ticket, and send the proof data back to the proof data verification device. Verification means in the proof data verification device verify the signature, and if the verification is successful, the execution of program is allowed.

REFERENCES:
patent: 5347581 (1994-09-01), Naccache et al.
patent: 5825880 (1998-10-01), Sudia et al.
patent: 6175921 (2001-01-01), Rosen
Chang et al., An Id-Based Signature Scheme Based Upon Rabin's Public Key Cryptosystem, 1991, IEEE, pp. 139-141.
Schneier, Applied Crytography, 1996, Wiley, 2nd Edition, pp. 115, 483, and 71.

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