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. 29, 2011
Filed:
May. 20, 2004
Jonathan Trostle, San Jose, CA (US);
Muhammad Mukarran Bin Tariq, Rawalpindi, PK;
Hosei Matsuoka, Kanagawa, JP;
James Kempf, Mountain View, CA (US);
Ravi Kumar Jain, Palo Alto, CA (US);
Toshiro Kawahara, Saratoga, CA (US);
Jonathan Trostle, San Jose, CA (US);
Muhammad Mukarran Bin Tariq, Rawalpindi, PK;
Hosei Matsuoka, Kanagawa, JP;
James Kempf, Mountain View, CA (US);
Ravi Kumar Jain, Palo Alto, CA (US);
Toshiro Kawahara, Saratoga, CA (US);
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
Cryptographically Protected Prefixes ('CPPs') are used to create IP addresses, preventing any correlation between a CPP IP address and a host's geographic location. An IP address is subdivided into address prefixes of multiple segments. Each segment is encrypted with a cryptographic key known only to a subset of routers in the access network domain (or Privacy Domain). Therefore, each router obtains the information it needs to forward a packet of information, but not any additional information.