Encrypted communication system and communication device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7813512
APP PUB NO 20070150735A1
SERIAL NO

10573684

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

In an encrypted communication system that includes a first and a second device, the first device encrypts a 1st key using a public key of the second device to generate 1st encrypted data, which is then transmitted to the second device, receives 2nd encrypted data from the second device, which is then decrypted using a secret key of the first device to obtain a 2nd key, and generates, based on the 1st and 2nd keys, a 1st encryption key for use in communication with the second device. The second device encrypts a 3rd key using a public key of the first device to generate the 2nd encrypted data, which is then transmitted to the first device, receives the 1st encrypted data, which is then decrypted using a secret key of the second device to obtain a 4th key, and generates, based on the 3rd and 4th keys, a 2nd encryption key for use in communication with the first device. The first and second devices perform encrypted communication using the 1st and 2nd encryption keys.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
INTERTRUST TECHNOLOGIES CORPORATION2140 SHATTUCK AVENUE SUITE 1201 BERKELEY CA 94704

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Futa, Yuichi Osaka, JP 148 2605
Ohmori, Motoji Hirakata, JP 299 4533
Tatebayashi, Makoto Takarazuka, JP 106 3211
Yamamichi, Masato Ota, JP 25 748

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation