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:
Apr. 19, 2011
Filed:
Mar. 31, 2003
Steven Toye Crocker, Redwood City, CA (US);
Denis Jacques Paul Garcia, Palo Alto, CA (US);
Steven Toye Crocker, Redwood City, CA (US);
Denis Jacques Paul Garcia, Palo Alto, CA (US);
Other;
Abstract
Enhanced multi-level cryptographic transformations that secure electronic files are disclosed. The secured electronic files contain not only secured data but also security information. The security information includes cryptographic structure information, access rules and secrets (e.g., keys). The cryptographic structure information explains the multi-level cryptographic transformations associated with securing or unsecuring the electronic files. The access rules and the secrets are used by the cryptographic transformations to secure the electronic files. Since the secured electronic files contain the cryptographic structure information, the particular cryptographic transformations (including their sequencing) can vary with each electronic file, if so desired. Typically, the secured electronic files are secured and managed by a file security system, such as a distributed security system.