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:
Jan. 22, 2008
Filed:
Mar. 03, 2003
Applicants:
Marco Casassa Mont, Bristol, GB;
Keith Alexander Harrison, Monmouthshire, GB;
Martin Sadler, Bristol, GB;
Inventors:
Marco Casassa Mont, Bristol, GB;
Keith Alexander Harrison, Monmouthshire, GB;
Martin Sadler, Bristol, GB;
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04K 1/04 (2006.01); H04K 1/06 (2006.01); H04L 9/00 (2006.01); H04N 7/167 (2006.01);
U.S. Cl.
CPC ...
Abstract
A computer system comprises a first computer entity arranged to encrypt data using an encryption key comprising a time value, and a second computer entity arranged to generate, at intervals, a decryption key using a current time value. The encryption and decryption processes are such that the decryption key generated using a current time value corresponding to that used for the encryption key, is apt to decrypt the encrypted s data.