Patents by Inventor Christopher L. Walstad

Christopher L. Walstad 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: 20220207130
    Abstract: A computing device can perform operations to unlock encrypted volumes of the computing device while the computing device is in a recovery environment. In some examples, the computing device can work in conjunction with a test computing device to unlock the encrypted volumes using an unlock token and a PIN. In other examples, the computing device can perform operations without a test computing device. For example, the computing device can, while in the recovery environment, use credentials associated with a user of the computing device to obtain a recovery password to unlock keys for interpreting the encrypted volumes. In some examples, the computing device can use a shortened recovery password in conjunction with anti-hammering capabilities of a Trusted Platform Module in order to unlock keys for interpreting the encrypted volumes. These and other operations can facilitate secure unlock of volumes of encrypted data on a consumer device.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Inventors: Yogesh A. MEHTA, Octavian T. URECHE, Scott R. SHELL, Innokentiy BASMOV, Peter NOVOTNEY, Christopher L. WALSTAD
  • Patent number: 11295004
    Abstract: A computing device can perform operations to unlock encrypted volumes of the computing device while the computing device is in a recovery environment. In some examples, the computing device can work in conjunction with a test computing device to unlock the encrypted volumes using an unlock token and a PIN. In other examples, the computing device can perform operations without a test computing device. For example, the computing device can, while in the recovery environment, use credentials associated with a user of the computing device to obtain a recovery password to unlock keys for interpreting the encrypted volumes. In some examples, the computing device can use a shortened recovery password in conjunction with anti-hammering capabilities of a Trusted Platform Module in order to unlock keys for interpreting the encrypted volumes. These and other operations can facilitate secure unlock of volumes of encrypted data on a consumer device.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: April 5, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yogesh A. Mehta, Octavian T. Ureche, Scott R. Shell, Innokentiy Basmov, Peter Novotney, Christopher L. Walstad
  • Patent number: 10713350
    Abstract: A computing device can perform operations to unlock encrypted volumes of the computing device while the computing device is in a recovery environment. In some examples, the computing device can work in conjunction with a test computing device to unlock the encrypted volumes using an unlock token and a PIN. In other examples, the computing device can perform operations without a test computing device. For example, the computing device can, while in the recovery environment, use credentials associated with a user of the computing device to obtain a recovery password to unlock keys for interpreting the encrypted volumes. In some examples, the computing device can use a shortened recovery password in conjunction with anti-hammering capabilities of a Trusted Platform Module in order to unlock keys for interpreting the encrypted volumes. These and other operations can facilitate secure unlock of volumes of encrypted data on a consumer device.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 14, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yogesh A. Mehta, Octavian T. Ureche, Scott R. Shell, Innokentiy Basmov, Peter Novotney, Christopher L. Walstad
  • Publication number: 20200167462
    Abstract: A computing device can perform operations to unlock encrypted volumes of the computing device while the computing device is in a recovery environment. In some examples, the computing device can work in conjunction with a test computing device to unlock the encrypted volumes using an unlock token and a PIN. In other examples, the computing device can perform operations without a test computing device. For example, the computing device can, while in the recovery environment, use credentials associated with a user of the computing device to obtain a recovery password to unlock keys for interpreting the encrypted volumes. In some examples, the computing device can use a shortened recovery password in conjunction with anti-hammering capabilities of a Trusted Platform Module in order to unlock keys for interpreting the encrypted volumes. These and other operations can facilitate secure unlock of volumes of encrypted data on a consumer device.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Inventors: Yogesh A. MEHTA, Octavian T. URECHE, Scott R. SHELL, Innokentiy BASMOV, Peter NOVOTNEY, Christopher L. WALSTAD
  • Publication number: 20180357412
    Abstract: A computing device can perform operations to unlock encrypted volumes of the computing device while the computing device is in a recovery environment. In some examples, the computing device can work in conjunction with a test computing device to unlock the encrypted volumes using an unlock token and a PIN. In other examples, the computing device can perform operations without a test computing device. For example, the computing device can, while in the recovery environment, use credentials associated with a user of the computing device to obtain a recovery password to unlock keys for interpreting the encrypted volumes. In some examples, the computing device can use a shortened recovery password in conjunction with anti-hammering capabilities of a Trusted Platform Module in order to unlock keys for interpreting the encrypted volumes. These and other operations can facilitate secure unlock of volumes of encrypted data on a consumer device.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Inventors: Yogesh A. MEHTA, Octavian T. URECHE, Scott R. SHELL, Innokentiy BASMOV, Peter NOVOTNEY, Christopher L. WALSTAD
  • Patent number: 10078748
    Abstract: A computing device can perform operations to unlock encrypted volumes of the computing device while the computing device is in a recovery environment. In some examples, the computing device can work in conjunction with a test computing device to unlock the encrypted volumes using an unlock token and a PIN. In other examples, the computing device can perform operations without a test computing device. For example, the computing device can, while in the recovery environment, use credentials associated with a user of the computing device to obtain a recovery password to unlock keys for interpreting the encrypted volumes. In some examples, the computing device can use a shortened recovery password in conjunction with anti-hammering capabilities of a Trusted Platform Module in order to unlock keys for interpreting the encrypted volumes. These and other operations can facilitate secure unlock of volumes of encrypted data on a consumer device.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: September 18, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yogesh A Mehta, Octavian T. Ureche, Scott R. Shell, Innokentiy Basmov, Peter Novotney, Christopher L Walstad
  • Publication number: 20170140146
    Abstract: A computing device can perform operations to unlock encrypted volumes of the computing device while the computing device is in a recovery environment. In some examples, the computing device can work in conjunction with a test computing device to unlock the encrypted volumes using an unlock token and a PIN. In other examples, the computing device can perform operations without a test computing device. For example, the computing device can, while in the recovery environment, use credentials associated with a user of the computing device to obtain a recovery password to unlock keys for interpreting the encrypted volumes. In some examples, the computing device can use a shortened recovery password in conjunction with anti-hammering capabilities of a Trusted Platform Module in order to unlock keys for interpreting the encrypted volumes. These and other operations can facilitate secure unlock of volumes of encrypted data on a consumer device.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 18, 2017
    Inventors: Yogesh A. Mehta, Octavian T. Ureche, Scott R. Shell, Innokentiy Basmov, Peter Novotney, Christopher L. Walstad
  • Patent number: 9531703
    Abstract: Single sign-on techniques via an application or browser are described. In one or more implementations, a single instance of entry of authentication information is received that is entered via interaction with an application or browser of a computing device. Responsive to this receipt, the single instance of the entry of authentication information is used by the computing device automatically and without user intervention to cause authentication to obtain access to one or more network services that are accessible via a network by the application and the browser.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 27, 2016
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Jonathan D. Schwartz, Karanbir Singh, Christopher L. Walstad, Sainath Narendranath Thadkal, Aleksandr Radutskiy, Yifan Wang, Vishal Agarwal, Octavian T. Ureche
  • Publication number: 20160112402
    Abstract: Single sign-on techniques via an application or browser are described. In one or more implementations, a single instance of entry of authentication information is received that is entered via interaction with an application or browser of a computing device. Responsive to this receipt, the single instance of the entry of authentication information is used by the computing device automatically and without user intervention to cause authentication to obtain access to one or more network services that are accessible via a network by the application and the browser.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 21, 2016
    Inventors: Jonathan D. Schwartz, Karanbir Singh, Christopher L. Walstad, Sainath Narendranath Thadkal, Aleksandr Radutskiy, Yifan Wang, Vishal Agarwal, Octavian T. Ureche