Patents by Inventor Tarek Kamel

Tarek Kamel 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).

  • Controlling access to protected objects
    Patent number: 10333711
    Abstract: A device operated by a user may store an object to which access is to be regulated, which may be achieved by encrypting the object with an encryption key and sending the key to a server having a key store. When a user of the device requests access to the object, the server may authenticate the user (e.g., according to a credential submitted by the user) and verify a trust identifier of the device (e.g., authorization to access the object through the device, and/or the integrity of the device), before sending to the device a ticket granting access to the key. The device may send the ticket to the server, receive the key from the server, decrypt the stored encrypted object, and provide the object to the user. This mechanism promotes rapid access upon request and efficient use of the server, and enables remote revocation of access.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: June 25, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Eric Fleischman, Tarek Kamel, Yordan Rouskov
  • Proof of possession for web browser cookie based security tokens
    Patent number: 9521146
    Abstract: In one embodiment, a user device 110 may access a network service 122 using a secure cookie 300. A high trust process may create an authentication proof 360 using a secure key. The high trust process may provide a browsing token 310 and the authentication proof 360 to a low trust process to send to an authentication service 124.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 13, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Sanket Kaluskar, Dejan Subotic, Tarek Kamel, Adrian Frei, Guruprasad Aphale, Allan Wetter
  • PROOF OF POSSESSION FOR WEB BROWSER COOKIE BASED SECURITY TOKENS
    Publication number: 20150058621
    Abstract: In one embodiment, a user device 110 may access a network service 122 using a secure cookie 300. A high trust process may create an authentication proof 360 using a secure key. The high trust process may provide a browsing token 310 and the authentication proof 360 to a low trust process to send to an authentication service 124.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 26, 2015
    Applicant: Microsoft Corporation
    Inventors: Sanket Kaluskar, Dejan Subotic, Tarek Kamel, Adrian Frei, Guruprasad Aphale, Allan Wetter
  • CONTROLLING ACCESS TO PROTECTED OBJECTS
    Publication number: 20120321087
    Abstract: A device operated by a user may store an object to which access is to be regulated, which may be achieved by encrypting the object with an encryption key and sending the key to a server having a key store. When a user of the device requests access to the object, the server may authenticate the user (e.g., according to a credential submitted by the user) and verify a trust identifier of the device (e.g., authorization to access the object through the device, and/or the integrity of the device), before sending to the device a ticket granting access to the key. The device may send the ticket to the server, receive the key from the server, decrypt the stored encrypted object, and provide the object to the user. This mechanism promotes rapid access upon request and efficient use of the server, and enables remote revocation of access.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 20, 2012
    Applicant: Microsoft Corporation
    Inventors: Eric Fleischman, Tarek Kamel, Yordan Rouskov