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. 20, 2004
Filed:
Jul. 11, 2000
Jyh-Han Lin, Coral Springs, FL (US);
Robert L. Geiger, Sunnyvale, CA (US);
Ronald R. Smith, Coral Springs, FL (US);
Alan W. Chan, Sunrise, FL (US);
Sanjay Wanchoo, Lauderdhill, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A signed application descriptor file ( ) is used instead of X.509 certificates to authenticate a portable application code, such as a JAVA archive (JAR) file. The signed ADF includes an application descriptor file ( ), file hash ( ) of the JAR file ( ), a developer descriptor file ( ), signed time stamp ( ), and a developer's certificate ( ). A network client device ( ) includes limited computing resources ( ) and a virtual machine environment for executing the portable code ( ). Furthermore the client device contains a set of cryptographic, digital keys for authenticating parts of the signed ADF, which are further used to authenticate the JAR file.