System and method of secure garbage collection on a mobile device

Patent metadata

Field	Value
Publication number	US-8973148-B2
Application number	US-201213556959-A
Country	US
Kind code	B2
Filing date	Jul 24, 2012
Priority date	Mar 20, 2002
Publication date	Mar 3, 2015
Grant date	Mar 3, 2015

Abstract

A method and system for performing garbage collection involving sensitive information on a mobile device. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.

First claim

It is claimed:

1. A method for performing secure garbage collection involving sensitive information on a mobile device, the method comprising:
receiving secure information over a wireless network;
extracting sensitive information from the secure information;
storing the sensitive information in memory of the mobile device, wherein the sensitive information is accessible using an object;
unreferencing the object;
determining that the object has become unreachable because th…

Assignees

• Little Herbert A
• Adams Neil P
• Janhunen Stefan E
• Dahms John F A
• Blackberry Ltd

Inventors

• Little Herbert A
• Adams Neil P
• Janhunen Stefan E
• Dahms John F A

Classifications

• H04L63/061

  Electricity · mapped topic

• G06F16/951

  Physics · mapped topic

• G06F21/62

  Physics · mapped topic

• H04L63/0435

  Electricity · mapped topic

• G06F2212/402

  Physics · mapped topic