08613102 is referenced by 67 patents and cites 442 patents.

Techniques for utilizing security criteria to implement document retention for electronic documents are disclosed. The security criteria can also limit when, how and where access to the electronic documents is permitted. The security criteria can pertain to keys (or ciphers) used to secure (e.g., encrypt) electronic files (namely, electronic documents), or to unsecure (e.g., decrypt) electronic files already secured. At least a portion of the security criteria can be used to implement document retention, namely, a document retention policy. After a secured electronic document has been retained for the duration of the document retention policy, the associated security criteria becomes no longer available, thus preventing subsequent access to the secured electronic document. In other words, access restrictions on electronic documents can be used to prevent access to electronic documents which are no longer to be retained.

Title
Method and system for providing document retention using cryptography
Application Number
10/815251
Publication Number
8613102 (B2)
Application Date
March 30, 2004
Publication Date
December 17, 2013
Inventor
Satyajit Nath
Cupertino
CA, US
Agent
Sterne Kessler Goldstein & Fox P L L C
Assignee
Intellectual Ventures I
DE, US
IPC
G06F 7/04
View Original Source