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:
Mar. 16, 2010
Filed:
Apr. 21, 2004
Takayuki Miura, Tokyo, JP;
Tsuyoshi Ono, Tokyo, JP;
Naoshi Suzuki, Chiba, JP;
Kouji Miyata, Tokyo, JP;
Takayuki Miura, Tokyo, JP;
Tsuyoshi Ono, Tokyo, JP;
Naoshi Suzuki, Chiba, JP;
Kouji Miyata, Tokyo, JP;
Sony Corporation, , JP;
Abstract
A device authentication module and an encryption module can be connected via a dynamic link in a CE device. A random number is generated in an authentication server (). The device authentication module () combines a pass-phrase and this random number to generate a digest, and transmits this and a device ID to the encryption module (). The encryption module encrypts a communication pathway and transmits these items of information to the authentication server (). The authentication server () searches for the pass-phrase based on the device ID and combines this and the generated random number to generate a digest. This digest is compared with the digest received from the encryption module () for device authentication. The encryption module () receives from the device authentication module () not the pass-phrase but a digest, and therefore can be connected via a dynamic link instead of a static link.