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:
Jul. 10, 2012
Filed:
Sep. 25, 2003
Applicant:
Eduard K. DE Jong, Redland, GB;
Inventor:
Eduard K. de Jong, Redland, GB;
Assignee:
Oracle America, Inc., Redwood Shores, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Obfuscation of an application program comprises receiving an obfuscated key decryption program comprising an instruction stream configured to perform a decryption algorithm for a first cryptographic key. The obfuscated key decryption program also has an encrypted second cryptographic key scrambled in its instruction stream. The second cryptographic key is encrypted with the first cryptographic key. The obfuscated key decryption program is executed to decrypt the second cryptographic key. The second cryptographic key is used for decrypting digital content.