Patents by Inventor Walter Cooper Chastain
Walter Cooper Chastain 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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Patent number: 9240994Abstract: A system that incorporates the subject disclosure may perform, for example, receive secret information and non-secret information from a secure download application function, provide a request for a first verification to a secure element where the first verification is associated with access to content and/or an application that is accessible via the secure download application function, receive the first verification which is generated by the secure element based on the secret information without providing the secret information to the secure device processor, receive the non-secret information from the secure element, and generate a second verification for the access based on the non-secret information, where the content and/or application is accessible from the secure download application function responsive to the first and second verifications. Other embodiments are disclosed.Type: GrantFiled: October 28, 2013Date of Patent: January 19, 2016Assignee: AT&T INTELLECTUAL PROPERTY I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Patent number: 9240989Abstract: A system that incorporates the subject disclosure may perform, for example, receiving an over-the-air programming message that is utilizing a hypertext transfer protocol where the over-the-air programming message including programming data for use by the mobile communication device, converting the over-the-air programming message to a short message service transport protocol to generate an adjusted message that includes the programming data, and providing the adjusted message to a universal integrated circuit card of the mobile communication device via a baseband proxy operating in a device processor of the mobile communication device. Other embodiments are disclosed.Type: GrantFiled: November 1, 2013Date of Patent: January 19, 2016Assignee: AT&T INTELLECTUAL PROPERTY I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Patent number: 9208300Abstract: A system that incorporates the subject disclosure may perform, for example, receiving a baseline credential and an external credential, mapping the external credential to the baseline credential in a secure element memory, receiving a request for an authentication from a secure device processor of the communication device where the request for the authentication includes a user credential inputted into the communication device, comparing the user credential with the baseline credential to verify the authentication, and providing the authentication and the external credential to the secure device processor without providing the baseline credential to enable the secure device processor to provide the external credential to an external entity device that is remote from the communication device. Other embodiments are disclosed.Type: GrantFiled: October 23, 2013Date of Patent: December 8, 2015Assignee: AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Publication number: 20150334107Abstract: A system that incorporates the subject disclosure may perform, for example, operations including receiving an encrypted secure token from a secure token application function that is remote from the communication device, storing the encrypted secure token in a secure element memory of the secure element, accessing user input requesting the encrypted secure token where the secure device processor is separate from the secure element and is in communication with the secure element, generating a modified secure token by adding identification information to the encrypted secure token and by performing a second encryption of the encrypted secure token with the identification information, receiving the modified secure token from the secure element, and providing the modified secure token to a receiving device. Other embodiments are disclosed.Type: ApplicationFiled: July 23, 2015Publication date: November 19, 2015Inventors: Walter Cooper Chastain, Stephen Emille Chin, Samuel King, Michael Suozzo, Nicholas Vondrak, Ismaila Wane
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Patent number: 9185085Abstract: A system that incorporates the subject disclosure may include, for example, a system for receiving a request to modify a universal integrated circuit card, generating a package comprising configuration data for modifying the universal integrated circuit card, encrypting the package with a transport key to generate an encrypted package, transmitting the encrypted package to a communication device communicatively coupled to the universal integrated circuit card to provision the universal integrated circuit card, and providing a mobile network operator trusted service manager system information relating to the configuration data to enable the mobile network operator trusted service manager system to manage content and memory allocation of the universal integrated circuit card. Other embodiments are disclosed.Type: GrantFiled: December 1, 2014Date of Patent: November 10, 2015Assignees: AT&T INTELLECTUAL PROPERTY I, LP, AT&T MOBILITY II LLCInventors: Walter Cooper Chastain, Clifton Ashman Campbell, Stephen Emille Chin, David Harber, Brian Keith Rainer, David K. Smith, Shih-Ming Wang
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Publication number: 20150319152Abstract: A device that incorporates the subject disclosure may perform, for example, generating a security domain root structure for a universal integrated circuit card of an end user device, where the security domain root structure includes a hierarchy of a link provider operator security domain above a mobile network operator trusted security domain, where the link provider operator security domain enables transport management by a link provider operator, and where the mobile network operator trusted security domain enables card content management and subscription eligibility verification by a mobile network operator trusted service manager. Other embodiments are disclosed.Type: ApplicationFiled: May 1, 2014Publication date: November 5, 2015Applicant: AT&T Intellectual Property I, LPInventor: Walter Cooper Chastain
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Publication number: 20150319151Abstract: A device that incorporates the subject disclosure may perform, for example, receiving a derived encryption key from a remote management server without receiving a master key from which the derived encryption key was generated, applying a one-way function to the derived encryption key and a nonce to generate a temporary encryption key, obtaining data for transmission to a recipient device, encrypting the data using the temporary encryption key to generate encrypted data, and providing the encrypted data over a network to the recipient device. Other embodiments are disclosed.Type: ApplicationFiled: May 1, 2014Publication date: November 5, 2015Applicant: AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emill Chin
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Publication number: 20150312746Abstract: A separate domain selection function is utilized as the first function in a communication path for a communication that is to be connected to a user device registered in a first network or a second network. If a result of the domain selection function indicates call control should be maintained by first network (e.g., user device is registered with first network or a network with which first network has a control relationship), call control of the communication remains with first network. If the result of the domain selection function indicates the user device is registered with second network, call control is suspended by the first network, which allows the communication to bypass the first network.Type: ApplicationFiled: July 8, 2015Publication date: October 29, 2015Inventors: Min Lu, Walter Cooper Chastain, Martin Dolly, Judith Espejo, Russell P. Sharples, Guang Wang, Mario Manuel Jardon
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Patent number: 9137839Abstract: Aspects describe a separate domain selection function that is utilized as the first function in a communication path for a communication that is to be connected to a user device registered in a first network or a second network. If a result of the domain selection function indicates call control should be maintained by first network (e.g., user device is registered with first network or a network with which first network has a control relationship), call control of the communication remains with first network. If the result of the domain selection function indicates the user device is registered with second network, call control is suspended by the first network, which allows the communication to bypass the first network.Type: GrantFiled: August 17, 2010Date of Patent: September 15, 2015Assignees: AT&T INTELLECTUAL PROPERTY I, L.P., AT&T MOBILITY II LLCInventors: Min Lu, Walter Cooper Chastain, Martin Dolly, Judith Espejo, Mario Jardon, Russell Sharples, Guang Wang
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Patent number: 9124573Abstract: A system that incorporates the subject disclosure may perform, for example, operations including receiving an encrypted secure token from a secure token application function that is remote from the communication device, storing the encrypted secure token in a secure element memory of the secure element, accessing user input requesting the encrypted secure token where the secure device processor is separate from the secure element and is in communication with the secure element, generating a modified secure token by adding identification information to the encrypted secure token and by performing a second encryption of the encrypted secure token with the identification information, receiving the modified secure token from the secure element, and providing the modified secure token to a receiving device. Other embodiments are disclosed.Type: GrantFiled: October 4, 2013Date of Patent: September 1, 2015Assignees: AT&T INTELLECTUAL PROPERTY I, LP, AT&T MOBILITY II, LLCInventors: Walter Cooper Chastain, Stephen Emille Chin, Samuel King, Michael Suozzo, Nicholas Vondrak, Ismaila Wane
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Publication number: 20150222631Abstract: A system that incorporates the subject disclosure may include, for example, instructions which when executed cause a device processor to perform operations comprising sending a service request to a remote management server; receiving from the management server an authentication management function and an encryption key generator for execution by a secure element and an encryption engine for execution by a secure device processor, sending a request to establish a communication session with a remote device; and communicating with the remote device via a channel established using an application server. The secure element and the secure device processor authenticate each other using a mutual authentication keyset. The secure element, the secure device processor and the device processor each have a security level associated therewith; the security level associated with the secure device processor is intermediate between that of the secure element and that of the device processor. Other embodiments are disclosed.Type: ApplicationFiled: April 16, 2015Publication date: August 6, 2015Inventors: Walter Cooper Chastain, Stephen Emille Chin
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Publication number: 20150149776Abstract: A system that incorporates the subject disclosure may perform, for example, providing an upload request to a mobile communication device to cause a secure device processor of the mobile communication device to perform a modification of data according to a data protection key to generate modified data and to perform an encryption of the modified data according to an upload transport key to generate encrypted modified data where the secure device processor is separate from and in communication with a secure element of the mobile communication device, and where the secure element receives master keys from a remote management server and stores the master keys to enable the upload transport key and the data protection key to be generated by the secure element without providing the master keys to the secure device processor. Other embodiments are disclosed.Type: ApplicationFiled: November 27, 2013Publication date: May 28, 2015Applicant: AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Patent number: 9036820Abstract: A system that incorporates the subject disclosure may include, for example, instructions which when executed cause a device processor to perform operations comprising sending a service request to a remote management server; receiving from the management server an authentication management function and an encryption key generator for execution by a secure element and an encryption engine for execution by a secure device processor, sending a request to establish a communication session with a remote device; and communicating with the remote device via a channel established using an application server. The secure element and the secure device processor authenticate each other using a mutual authentication keyset. The secure element, the secure device processor and the device processor each have a security level associated therewith; the security level associated with the secure device processor is intermediate between that of the secure element and that of the device processor. Other embodiments are disclosed.Type: GrantFiled: September 11, 2013Date of Patent: May 19, 2015Assignee: AT&T INTELLECTUAL PROPERTY I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Publication number: 20150127945Abstract: A system that incorporates the subject disclosure may perform, for example, receiving an over-the-air programming message that includes programming data for use by the mobile communication device, decrypting the over-the-air programming message utilizing a first keyset to generate a decrypted over-the-air programming message, determining a schedule for providing messages from a secure device processor to a secure element of the mobile communication device where the secure device processor is separate from the secure element and in communication with the secure element, and providing the decrypted over-the-air programming message to the secure element according to the schedule. Other embodiments are disclosed.Type: ApplicationFiled: November 1, 2013Publication date: May 7, 2015Applicant: AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Publication number: 20150127938Abstract: A system that incorporates the subject disclosure may perform, for example, receiving an over-the-air programming message that is utilizing a hypertext transfer protocol where the over-the-air programming message including programming data for use by the mobile communication device, converting the over-the-air programming message to a short message service transport protocol to generate an adjusted message that includes the programming data, and providing the adjusted message to a universal integrated circuit card of the mobile communication device via a baseband proxy operating in a device processor of the mobile communication device. Other embodiments are disclosed.Type: ApplicationFiled: November 1, 2013Publication date: May 7, 2015Applicant: AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Publication number: 20150121487Abstract: A system that incorporates the subject disclosure may perform, for example, receive secret information and non-secret information from a secure download application function, provide a request for a first verification to a secure element where the first verification is associated with access to content and/or an application that is accessible via the secure download application function, receive the first verification which is generated by the secure element based on the secret information without providing the secret information to the secure device processor, receive the non-secret information from the secure element, and generate a second verification for the access based on the non-secret information, where the content and/or application is accessible from the secure download application function responsive to the first and second verifications. Other embodiments are disclosed.Type: ApplicationFiled: October 28, 2013Publication date: April 30, 2015Applicant: AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Publication number: 20150113617Abstract: A system that incorporates the subject disclosure may perform, for example, receiving a baseline credential and an external credential, mapping the external credential to the baseline credential in a secure element memory, receiving a request for an authentication from a secure device processor of the communication device where the request for the authentication includes a user credential inputted into the communication device, comparing the user credential with the baseline credential to verify the authentication, and providing the authentication and the external credential to the secure device processor without providing the baseline credential to enable the secure device processor to provide the external credential to an external entity device that is remote from the communication device. Other embodiments are disclosed.Type: ApplicationFiled: October 23, 2013Publication date: April 23, 2015Applicant: AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin
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Publication number: 20150100788Abstract: A system that incorporates the subject disclosure may perform, for example, operations including receiving an encrypted secure token from a secure token application function that is remote from the communication device, storing the encrypted secure token in a secure element memory of the secure element, accessing user input requesting the encrypted secure token where the secure device processor is separate from the secure element and is in communication with the secure element, generating a modified secure token by adding identification information to the encrypted secure token and by performing a second encryption of the encrypted secure token with the identification information, receiving the modified secure token from the secure element, and providing the modified secure token to a receiving device. Other embodiments are disclosed.Type: ApplicationFiled: October 4, 2013Publication date: April 9, 2015Applicants: AT&T Mobility II, LLC, AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin, Samuel King, Michael Suozzo, Nicholas Vondrak, Ismaila Wane
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Publication number: 20150089225Abstract: A system that incorporates the subject disclosure may include, for example, a system for receiving a request to modify a universal integrated circuit card, generating a package comprising configuration data for modifying the universal integrated circuit card, encrypting the package with a transport key to generate an encrypted package, transmitting the encrypted package to a communication device communicatively coupled to the universal integrated circuit card to provision the universal integrated circuit card, and providing a mobile network operator trusted service manager system information relating to the configuration data to enable the mobile network operator trusted service manager system to manage content and memory allocation of the universal integrated circuit card. Other embodiments are disclosed.Type: ApplicationFiled: December 1, 2014Publication date: March 26, 2015Inventors: Walter Cooper Chastain, Clifton Ashman Campbell, Stephen Emille Chin, David Harber, Brian Keith Rainer, David K. Smith, Shih-Ming Wang
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Publication number: 20150071437Abstract: A system that incorporates the subject disclosure may include, for example, instructions which when executed cause a device processor to perform operations comprising sending a service request to a remote management server; receiving from the management server an authentication management function and an encryption key generator for execution by a secure element and an encryption engine for execution by a secure device processor, sending a request to establish a communication session with a remote device; and communicating with the remote device via a channel established using an application server. The secure element and the secure device processor authenticate each other using a mutual authentication keyset. The secure element, the secure device processor and the device processor each have a security level associated therewith; the security level associated with the secure device processor is intermediate between that of the secure element and that of the device processor. Other embodiments are disclosed.Type: ApplicationFiled: September 11, 2013Publication date: March 12, 2015Applicant: AT&T Intellectual Property I, LPInventors: Walter Cooper Chastain, Stephen Emille Chin