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:
Dec. 22, 2009
Filed:
Sep. 09, 2005
Sumie Nakabayashi, Kokubunji, JP;
Kazuhito Yaegashi, Kodaira, JP;
Munemitsu Kuwabara, Kodaira, JP;
Hirotake Usami, Tachikawa, JP;
Sumie Nakabayashi, Kokubunji, JP;
Kazuhito Yaegashi, Kodaira, JP;
Munemitsu Kuwabara, Kodaira, JP;
Hirotake Usami, Tachikawa, JP;
Hitachi Kokusai Electric, Inc., Tokyo, JP;
Abstract
Data to be encrypted is effectively encrypted by a data delivery system for encrypting the data to be encrypted with a transmitting apparatus and decrypting a cipher thereof with a receiving apparatus. In a configuration for encrypting and decrypting the data to be encrypted by using a random number sequence generated by a random number generating portion for generating the random number sequence uniquely decided from an input parameter, the transmitting apparatus generates the input parameter to perform encryption based on metadata of the data to be encrypted while the receiving apparatus generates the input parameter to perform cipher decryption based on the metadata embedded in the data to be encrypted.