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:
Aug. 12, 2014
Filed:
Jan. 20, 2006
Robert Thomas Owen Rees, Bristol, GB;
Robert Thomas Owen Rees, Bristol, GB;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
To provide for cryptographic separation, embodiments of the invention employ containment mechanisms provided by trusted operating systems to ensure that plaintext data which must be encrypted in accordance with a security policy (or, in reverse, ciphertext data which is to be decrypted) is processed by a suitable encryption routine before being sent onwards for transmission, storage, or the like. Such containment mechanisms usually include mandatory system access control rules which specify to which system resources the output of a system resource (such as an application) may be supplied. By specifying a suitable set of such rules, mandatory encryption can be enforced at the operating system kernel level.