System and method for detecting email content containment

Details System and method for detecting email content containment System and method for detecting email content containment

2008-03-31

2011-10-11

Caldwell, Andrew (Department: 2445)

Electrical computers and digital processing systems: multicomput

Computer conferencing

Demand based messaging

Reexamination Certificate

active

08037145

ABSTRACT:
Systems and methods for detecting email content containment are disclosed. In one embodiment, a method comprises generating a first set of hash values corresponding to a first email document, wherein the first set includes a respective hash value corresponding to each of a plurality of character sequences of the first email document. The method further comprises generating a second set of hash values corresponding to a second email document, wherein the second set include a respective hash value corresponding to each of a plurality of character sequences of the second email document, and determining whether the first set of hash values is a subset of the second set of hash values.

REFERENCES:
patent: 5999932 (1999-12-01), Paul
patent: 6052709 (2000-04-01), Paul
patent: 6487644 (2002-11-01), Huebsch et al.
patent: 6654787 (2003-11-01), Aronson et al.
patent: 7644127 (2010-01-01), Yu
patent: 7702683 (2010-04-01), Kirshenbaum
patent: 7730113 (2010-06-01), Payette et al.
patent: 2004/0064737 (2004-04-01), Milliken
patent: 2005/0081059 (2005-04-01), Bandini et al.
patent: 2005/0086520 (2005-04-01), Dharmapurikar
patent: 2005/0108339 (2005-05-01), Gleeson et al.
patent: 2005/0108340 (2005-05-01), Gleeson et al.
patent: 2005/0132197 (2005-06-01), Medlar
patent: 2006/0041590 (2006-02-01), King
patent: 2006/0190493 (2006-08-01), Kawai et al.
patent: 2006/0288076 (2006-12-01), Cowings et al.
patent: 2007/0115986 (2007-05-01), Shankara
patent: 2008/0059590 (2008-03-01), Sarafijanovic
patent: 2400933 (2004-10-01), None
U.S. Appl. No. 10/117,065, entitled “Apparatus and Method for Weighted and Aging Spam Filtering Rules”, by Paul, et al., filed Apr. 4, 2002.
U.S. Appl. No. 10/871,583, entitled “System and Method for Filtering Spam Message Utilizing URL Filtering Module”, by Cowings, et al., filed Jun. 17, 2004.
U.S. Appl. No. 10/949,465, entitled “System and Method for Filtering Fraudulent Messages”, by Bruno, et al., filed Sep. 24, 2004.
U.S. Appl. No. 11/048,958, entitled “Method and Apparatus for Determining the Source of an Email Message”, by Mantel, filed May 11, 2005.
U.S. Appl. No. 11/116,572, entitled “Method and Apparatus for Creating Aggressive Anti-Spam Rules”, by Cowings, et al., filed Mar. 27, 2005.
U.S. Appl. No. 11/127,813, entitled “Method and Apparatus for Simulating End User Responses to Spam Email Messages”, by Khalsa, et al., filed Feb. 1, 2005.
U.S. Appl. No. 11/127,814, entitled “Method and Apparatus for Detecting Spam in Email Messages and Email Attachments”, by Cowings, et al., filed May 11, 2005.
JupiterOnlineMedia “What is message digest?—A Word Definition From the Webopedia Computer Dictionary”, dated Mar. 12, 2002, downloaded from the Internet “http://www.webopedia.com/TERM/M/message—digest.html” on Sep. 28, 2007, 4 pages.
Yang, H. and Callan, J. “Near-duplicate detection for eRulemaking” Proceedings of the 2005 National Conference on Digital Government Research (Atlanta, Georgia, May 15-18, 2005), ACM International Conference Proceeding Series, vol. 89. Digital Government Society of North America, pp. 78-86.
Nevin Heintze, “Scalable document fingerprinting”, Proceeding of the 1996 USENIX Workshop on Electronic Commerce, 1996.
Broder, et al “Syntactic clustering of the Web”, Selected papers from the sixth international conference on World Wide Web, p. 1157-1166, Sep. 1997, Santa Clara, California, United States.
Schleimer , et al. “Winnowing: local algorithms for document fingerprinting”, Proceedings of the 2003 ACM SIGMOD international conference on Management of data, Jun. 9-12, 2003, San Diego, California.
U.S. Appl. No. 12/142,546, entitled “Methods for Efficiently Finding Email Inclusions” by Johnny Ngan, filed Jun. 19, 2008.
U.S. Appl. No. 12/059,148, entitled “System and Method for Detecting Content Similarity Within Email Documents by Sparse Subset Hashing”by Tsuen Wan Ngan, filed Mar. 31, 2008.
U.S. Appl. No. 12/059,130, entitled System and Method for Detecting Content Similarity Within Emails Documents Employing Selective Truncation, by Tsuen Wan Ngan, filed Mar. 31, 2008.
U.S. Appl. No. 11/157,327, entitled “Method and Apparatus to Group Spam Email Messages” by Sanford Jensen, filed Jun. 20, 2005.
European Search Report dated Aug. 13, 2009 for EP Application No. EP09156526.
Wikipedia “Bloom Filter” downloaded from the Internet: URL: http://en.wikipedia.org/wiki/Bloom—filter> retrieved on Jul. 31, 2009.

Affiliated with

Also associated with

Rating

System and method for detecting email content containment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for detecting email content containment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for detecting email content containment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4285320