Patents by Inventor Dorothy E. Denning

Dorothy E. Denning 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).

  • Publication number: 20170237556
    Abstract: Access to digital data is controlled by encrypting the data in such a manner that it can be decrypted only at a specified location, within a specific time frame, and with a secret key. Data encrypted in such a manner is said to be geo-encrypted. This geo-encryption process comprises a method in which plaintext data is first encrypted using a data encrypting key that is generated at the time of encryption. The data encrypting key is then encrypted (or locked) using a key encrypting key and information derived from the location of the intended receiver. The encrypted data encrypting key is then transmitted to the receiver along with the ciphertext data. The receiver both must be at the correct location and must have a copy of the corresponding key decrypting key in order to derive the location information and decrypt the data encrypting key.
    Type: Application
    Filed: June 24, 2013
    Publication date: August 17, 2017
    Inventors: Dorothy E. DENNING, Barry J. Glick, Ronald S. Karpf, Mark E. Seiler
  • Publication number: 20140380047
    Abstract: Access to digital data is controlled by encrypting the data in such a manner that it can be decrypted only at a specified location, within a specific time frame, and with a secret key. Data encrypted in such a manner is said to be geo-encrypted. This geo-encryption process comprises a method in which plaintext data is first encrypted using a data encrypting key that is generated at the time of encryption. The data encrypting key is then encrypted (or locked) using a key encrypting key and information derived from the location of the intended receiver. The encrypted data encrypting key is then transmitted to the receiver along with the ciphertext data. The receiver both must be at the correct location and must have a copy of the corresponding key decrypting key in order to derive the location information and decrypt the data encrypting key.
    Type: Application
    Filed: June 24, 2013
    Publication date: December 25, 2014
    Inventors: Dorothy E. DENNING, Barry J. Glick, Ronald S. Karpf, Mark E. Seiler
  • Patent number: 8472627
    Abstract: Access to digital data is controlled by encrypting the data in such a manner that it can be decrypted only at a specified location, within a specific time frame, and with a secret key. Data encrypted in such a manner is said to be geo-encrypted. This geo-encryption process comprises a method in which plaintext data is first encrypted using a data encrypting key that is generated at the time of encryption. The data encrypting key is then encrypted (or locked) using a key encrypting key and information derived from the location of the intended receiver. The encrypted data encrypting key is then transmitted to the receiver along with the ciphertext data. The receiver both must be at the correct location and must have a copy of the corresponding key decrypting key in order to derive the location information and decrypt the data encrypting key.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: June 25, 2013
    Assignee: Geocodex LLC
    Inventors: Dorothy E. Denning, Barry J. Glick, Ronald S. Karpf, Mark E. Seiler
  • Patent number: 7143289
    Abstract: Access to digital data is controlled by encrypting the data in such a manner that, in a single digital data acquisition step, it can be decrypted only at a specified location, within a specific time frame, and with a secret key. Data encrypted in such a manner is said to be geo-encrypted. This geo-encryption process comprises a method in which plaintext data is first encrypted using a data encrypting key that is generated at the time of encryption. The data encrypting key is then encrypted (or locked) using a key encrypting key and information derived from the location of the intended receiver. The encrypted data encrypting key is then transmitted to the receiver along with the ciphertext data. The receiver both must be at the correct location and must have a copy of the corresponding key decrypting key in order to derive the location information and decrypt the data encrypting key. After the data encrypting key is decrypted (or unlocked), it is used to decrypt the ciphertext.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: November 28, 2006
    Assignee: Geocodex LLC
    Inventors: Dorothy E. Denning, Barry J. Glick, Ronald S. Karpf, Mark E. Seiler
  • Publication number: 20020136407
    Abstract: Access to digital data is controlled by encrypting the data in such a manner that, in a single digital data acquisition step, it can be decrypted only at a specified location, within a specific time frame, and with a secret key. Data encrypted in such a manner is said to be geo-encrypted. This geo-encryption process comprises a method in which plaintext data is first encrypted using a data encrypting key that is generated at the time of encryption. The data encrypting key is then encrypted (or locked) using a key encrypting key and information derived from the location of the intended receiver. The encrypted data encrypting key is then transmitted to the receiver along with the ciphertext data. The receiver both must be at the correct location and must have a copy of the corresponding key decrypting key in order to derive the location information and decrypt the data encrypting key. After the data encrypting key is decrypted (or unlocked), it is used to decrypt the ciphertext.
    Type: Application
    Filed: November 16, 2001
    Publication date: September 26, 2002
    Inventors: Dorothy E. Denning, Barry J. Glick, Ronald S. Karpf, Mark E. Seiler
  • Patent number: 5757916
    Abstract: A method and apparatus for authenticating the identity of a remote user entity where the identity of such user entity is authenticated by use of information specific to geodetic location of the user entity but that changes constantly, making "spoofing" the host device extremely difficult. The invention is preferably implemented utilizing satellite positioning technology to produce the identifying information.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: May 26, 1998
    Assignee: International Series Research, Inc.
    Inventors: Peter F. MacDoran, Michael B. Mathews, Fred A. Ziel, Kenn L. Gold, Steven M. Anderson, Mark A. Coffey, Dorothy E. Denning