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).
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Publication number: 20220207130Abstract: 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: ApplicationFiled: March 17, 2022Publication date: June 30, 2022Inventors: Yogesh A. MEHTA, Octavian T. URECHE, Scott R. SHELL, Innokentiy BASMOV, Peter NOVOTNEY, Christopher L. WALSTAD
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Patent number: 11295004Abstract: 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: GrantFiled: January 31, 2020Date of Patent: April 5, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Yogesh A. Mehta, Octavian T. Ureche, Scott R. Shell, Innokentiy Basmov, Peter Novotney, Christopher L. Walstad
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Patent number: 10713350Abstract: 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: GrantFiled: August 21, 2018Date of Patent: July 14, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Yogesh A. Mehta, Octavian T. Ureche, Scott R. Shell, Innokentiy Basmov, Peter Novotney, Christopher L. Walstad
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Publication number: 20200167462Abstract: 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: ApplicationFiled: January 31, 2020Publication date: May 28, 2020Inventors: Yogesh A. MEHTA, Octavian T. URECHE, Scott R. SHELL, Innokentiy BASMOV, Peter NOVOTNEY, Christopher L. WALSTAD
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Publication number: 20180357412Abstract: 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: ApplicationFiled: August 21, 2018Publication date: December 13, 2018Inventors: Yogesh A. MEHTA, Octavian T. URECHE, Scott R. SHELL, Innokentiy BASMOV, Peter NOVOTNEY, Christopher L. WALSTAD
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Patent number: 10078748Abstract: 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: GrantFiled: November 13, 2015Date of Patent: September 18, 2018Assignee: Microsoft Technology Licensing, LLCInventors: Yogesh A Mehta, Octavian T. Ureche, Scott R. Shell, Innokentiy Basmov, Peter Novotney, Christopher L Walstad
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Publication number: 20170140146Abstract: 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: ApplicationFiled: November 13, 2015Publication date: May 18, 2017Inventors: Yogesh A. Mehta, Octavian T. Ureche, Scott R. Shell, Innokentiy Basmov, Peter Novotney, Christopher L. Walstad
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Patent number: 9531703Abstract: 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: GrantFiled: December 8, 2014Date of Patent: December 27, 2016Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Jonathan D. Schwartz, Karanbir Singh, Christopher L. Walstad, Sainath Narendranath Thadkal, Aleksandr Radutskiy, Yifan Wang, Vishal Agarwal, Octavian T. Ureche
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Publication number: 20160112402Abstract: 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: ApplicationFiled: December 8, 2014Publication date: April 21, 2016Inventors: Jonathan D. Schwartz, Karanbir Singh, Christopher L. Walstad, Sainath Narendranath Thadkal, Aleksandr Radutskiy, Yifan Wang, Vishal Agarwal, Octavian T. Ureche