Patents by Inventor Andrew D. Persaud

Andrew D. Persaud 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).

  • Password checking
    Patent number: 8539247
    Abstract: A method is disclosed for password checking. After input is received, a proposed password included in the input is parsed into symbols. At least one of the symbols includes two or more characters. A probably metric is determined based on a sequence of symbols. The probability metric is used to determine whether or not the password is secure.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: September 17, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: David A. McGrew, Andrew D. Persaud
  • PASSWORD CHECKING
    Publication number: 20110314294
    Abstract: A method is disclosed for password checking. After input is received, a proposed password included in the input is parsed into symbols. At least one of the symbols includes two or more characters. A probably metric is determined based on a sequence of symbols. The probability metric is used to determine whether or not the password is secure.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 22, 2011
    Inventors: David A. McGrew, Andrew D. Persaud