Patents by Inventor Christopher James Cant

Christopher James Cant has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8037520
    Abstract: Methods, apparatus, programs and signals for providing communications network security. The approach is based on using established “standard” protocols, but packets (or cells or frames) are deliberately malformed by the sender, optionally according to a predetermined rule (for example by inverting a packet check digit). A filter forwards only packets identified as being invalid, optionally in accordance with the rule; packets which are valid with respect to the “standard” protocol are dropped. The filter is preferably implemented in hardware to mitigate the risk of its being compromised by a malicious attack.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: October 11, 2011
    Assignee: Qinetiq Limited
    Inventors: Simon Robert Wiseman, Christopher James Cant
  • Publication number: 20080209542
    Abstract: Methods, apparatus, programs and signals for providing communications network security. The approach is based on using established “standard” protocols, but packets (or cells or frames) are deliberately malformed by the sender, optionally according to a predetermined rule (for example by inverting a packet check digit). A filter forwards only packets identified as being invalid, optionally in accordance with the rule; packets which are valid with respect to the “standard” protocol are dropped. The filter is preferably implemented in hardware to mitigate the risk of its being compromised by a malicious attack.
    Type: Application
    Filed: September 12, 2006
    Publication date: August 28, 2008
    Inventors: Simon Robert Wiseman, Christopher James Cant