Source: http://www.google.ca/patents/US8127366
Timestamp: 2013-12-07 14:43:07
Document Index: 602060833

Matched Legal Cases: ['art 1', 'art 2', 'art 1', 'art 1', 'Application No. 02258532', 'Application No. 02258532', 'Application No. 10']

Patent US8127366 - Method and apparatus for transitioning between states of security policies ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Advanced Patent Search | Sign inAdvanced Patent SearchPatentsTechniques for dynamically altering security criteria used in a file security system are disclosed. The security criteria pertains to keys (or ciphers) used by the file security system to encrypt electronic files to be secured or to decrypt electronic files already secured. The security criteria can,...http://www.google.ca/patents/US8127366?utm_source=gb-gplus-sharePatent US8127366 - Method and apparatus for transitioning between states of security policies used to secure electronic documentsPublication numberUS8127366 B2Publication typeGrantApplication numberUS 10/676,474Publication date28 Feb 2012Filing date30 Sep 2003Priority date30 Sep 2003Also published asUS20050071275, US20120159191Publication number10676474, 676474, US 8127366 B2, US 8127366B2, US-B2-8127366, US8127366 B2, US8127366B2InventorsSatyajit Nath, Michael Michio OUYE, Klimenty VainsteinOriginal AssigneeGuardian Data Storage, LlcPatent Citations (134), Non-Patent Citations (83), Referenced by (4), Classifications (12), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetMethod and apparatus for transitioning between states of security policies used to secure electronic documentsUS 8127366 B2Abstract Techniques for dynamically altering security criteria used in a file security system are disclosed. The security criteria pertains to keys (or ciphers) used by the file security system to encrypt electronic files to be secured or to decrypt electronic files already secured. The security criteria can, among other things, include keys that are required to gain access to electronic files. Here, the keys can be changed automatically as electronic files transition between different states of a process-driven security policy. The dynamic alteration of security criteria enhances the flexibility and robustness of the security system. In other words, access restrictions on electronic files can be dependent on the state of the process-driven security policy and enforced in conjunction with one or more cryptographic methods.
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No. 60/475,109, Leser, et al., "Method for Enforcing and Managing Usage Rights of Digital Data Objects in Dynamic, Distributed and Collaborative Contexts", filed Jun. 2, 2003.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8479301 *15 Apr 20112 Jul 2013Adobe Systems IncorporatedOffline access in a document control systemUS8538020 *29 Dec 201017 Sep 2013Amazon Technologies, Inc.Hybrid client-server cryptography for network applicationsUS20110191858 *15 Apr 20114 Aug 2011Adobe Systems IncorporatedOffline access in a document control systemUS20120159191 *24 Feb 201221 Jun 2012Guardian Data Storage, LlcMethod and apparatus for transitioning between states of security policies used to secure electronic documents* Cited by examinerClassifications U.S. Classification726/27, 726/1International ClassificationH04L9/30, H04L9/08, G06F17/30, G06F21/00Cooperative ClassificationG06F21/6209, H04L9/0822, H04L9/083European ClassificationG06F21/62A, H04L9/08F2B, H04L9/08F2HLegal EventsDateCodeEventDescription18 Jun 2013ASAssignmentFree format text: MERGER;ASSIGNOR:GUARDIAN DATA STORAGE, LLC;REEL/FRAME:030638/0219Effective date: 20130304Owner name: INTELLECTUAL VENTURES I LLC, DELAWARE28 Aug 2012CCCertificate of correction12 Feb 2007ASAssignmentOwner name: GUARDIAN DATA STORAGE, LLC, DELAWAREFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PSS SYSTEMS, INC.;REEL/FRAME:018875/0612Effective date: 20070124Owner name: PSS SYSTEMS, INC., CALIFORNIAFree format text: CHANGE OF NAME;ASSIGNOR:PERVASIVE SECURITY SYSTEMS, INC.;REEL/FRAME:018875/0608Effective date: 20030117Owner name: GUARDIAN DATA STORAGE, LLC,DELAWAREFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PSS SYSTEMS, INC.;US-ASSIGNMENT DATABASE UPDATED:20100316;REEL/FRAME:18875/612Owner name: PSS SYSTEMS, INC.,CALIFORNIAFree format text: CHANGE OF NAME;ASSIGNOR:PERVASIVE SECURITY SYSTEMS, INC.;US-ASSIGNMENT DATABASE UPDATED:20100316;REEL/FRAME:18875/608Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PSS SYSTEMS, INC.;US-ASSIGNMENT DATABASE UPDATED:20100420;REEL/FRAME:18875/612Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PSS SYSTEMS, INC.;US-ASSIGNMENT DATABASE UPDATED:20100427;REEL/FRAME:18875/612Free format text: CHANGE OF NAME;ASSIGNOR:PERVASIVE SECURITY SYSTEMS, INC.;US-ASSIGNMENT DATABASE UPDATED:20100420;REEL/FRAME:18875/608Free format text: CHANGE OF NAME;ASSIGNOR:PERVASIVE SECURITY SYSTEMS, INC.;US-ASSIGNMENT DATABASE UPDATED:20100427;REEL/FRAME:18875/608Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PSS SYSTEMS, INC.;REEL/FRAME:18875/612Free format text: CHANGE OF NAME;ASSIGNOR:PERVASIVE SECURITY SYSTEMS, INC.;REEL/FRAME:18875/60830 Sep 2003ASAssignmentOwner name: PSS SYSTEMS, INC., CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VAINSTEIN, KLIMENTY;NATH, SATYAJIT;OUYE, MICHAEL MICHIO;REEL/FRAME:014570/0346Effective date: 20030926RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google