The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2012
Filed:
Jun. 04, 2010
Applicant:
Masakazu Satoh, Tokyo, JP;
Inventor:
Masakazu Satoh, Tokyo, JP;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/32 (2006.01); G06F 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for authentication. A computer obtains a random number R generated by a hardware token. The computer forms and returns to the hardware token a signature Ck'(R) formed using the random number R with a computer secret key Ck′. The computer receiving from the hardware token authentication of the signature Ck′(R) that is performed by the hardware token using a computer public key Ck stored in the hardware token.