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:
Jun. 25, 2013
Filed:
Nov. 20, 2006
Dorothy E. Denning, Arlington, VA (US);
Barry J. Glick, Washington, DC (US);
Ronald S. Karpf, Gaithersburg, MD (US);
Mark E. Seiler, Los Angeles, CA (US);
Dorothy E. Denning, Arlington, VA (US);
Barry J. Glick, Washington, DC (US);
Ronald S. Karpf, Gaithersburg, MD (US);
Mark E. Seiler, Los Angeles, CA (US);
Geocodex LLC, Encino, CA (US);
Abstract
Access to digital data is controlled by encrypting the data in such a manner that it can be decrypted only at a specified location, within a specific time frame, and with a secret key. Data encrypted in such a manner is said to be geo-encrypted. This geo-encryption process comprises a method in which plaintext data is first encrypted using a data encrypting key that is generated at the time of encryption. The data encrypting key is then encrypted (or locked) using a key encrypting key and information derived from the location of the intended receiver. The encrypted data encrypting key is then transmitted to the receiver along with the ciphertext data. The receiver both must be at the correct location and must have a copy of the corresponding key decrypting key in order to derive the location information and decrypt the data encrypting key.