Motorola Mobility LLC

Motorola Corporation

General Instrument Corporation

Kent D Rager

Joel D Voss

Marcia Jean Otting

Joseph M Hansen

Steven H Lay

Xin Qiu

Amitkumar N Balar

Stuart Moskovics

Liqiang Chen

David J Theobald

Itzhak Mizrahi

Scott P Debates

Marcia J Otting

A method, telecommunication apparatus, and electronic device for securely creating an identity data block are disclosed. A secure memorymay store a unique private keyassociated with a unique public key. A processormay generate the identity data blockin the secure memoryusing the unique private key. The processormay erase the unique private keyfrom the secure memory

Public key infrastructure-based first inserted subscriber identity module subsidy lock

A method, telecommunication apparatus, and electronic device for securely using a subscriber identity module are disclosed. A secure memorymay store a secure international mobile subscriber identity. A subscriber identity module interfacemay receive an unlocking international mobile subscriber identity. A processormay erase a cache temporary mobile subscriber identity if the unlocking international mobile subscriber identity does not match the secure international mobile subscriber identity.

Using network authentication to counter subscriber identity module card man-in-the-middle subsidy lock attack

A process may be utilized for securing unlock password generation and distribution. A first set of exclusive responsibilities, assigned to a trusted authority, includes random generation and encryption of an unlock password to compose a randomly generated encrypted unlock password. Further, a second set of exclusive responsibilities, assigned to a security agent, includes sending information associated with the unlock password and a digital signature of information associated with the unlock password to a communication device configured for a network in order to mate the unlock password to the communication device, and sending the randomly generated and encrypted unlock password along with mating data to a password processing center. In addition, a third set of exclusive responsibilities, assigned to a password processing center, includes decrypting the randomly generated and encrypted unlock password.

Method and apparatus for securing unlock password generation and distribution

A method in a wireless communications device including determining whether the device is operating in a network other than a home network, determining whether to search for the home network when not operating in the home network by comparing network record information associated with the network in which the device is operating to reference information. In some embodiments, the device indicates that it is operating in a network other than the network in which it is operating.

Home network searching when roaming in wireless communications networks

An apparatus () used by a plurality of devices to authenticate an accessory () is configured to operate with a device () of the plurality of devices. The accessory () applies an authentication algorithm to a key and a challenge () received from the device () and generates a response () thereto. A challenge and response memory () stores a subset of a set of challenges () and pre-computed responses (). The enabling circuit transmits a challenge () to the accessory () and receives a received response () therefrom. The enabling circuit () also compares the received response () to the stored response () corresponding to the stored challenge () sent to the accessory (). The enabling circuit () is configured to generate a normal operation enabling signal that enables normal operation of the device when the received response () matches the stored response and is configured not to generate the normal operation enabling signal when the received response () does not match the stored response.

Method to authenticate an accessory

A method for controlling subsidy locking of a handset device includes storing, in a handset device, an asymmetrically digitally signed subsidy unlock data block that has been modified based on a password after signing (); modifying the stored unlock data block based on a received subsidy unlock password (); and granting subsidy unlock status if the asymmetric digital signature of the modified, stored unlock data block properly verifies (). A method () for controlling subsidy locking of a handset device includes storing, in the handset device, an asymmetrically digitally signed subsidy unlock data block that comprises a password portion that has been modified after signing (); replacing the contents of the modified password portion with a received subsidy unlock password to produce an updated subsidy unlock data block (); and granting subsidy unlock status if the asymmetric digital signature of the updated subsidy unlock data block properly verifies ().

Subsidy lock enabled handset device with asymmetric verification unlocking control and method thereof

A method in a communication device () comprises registering () on a first network (), identified by a first network ID, stored in the communication device. Then receiving, from the service provider, an acting network ID which identifies a second network (). Storing the acting network ID on the communication device and reprioritizing the second network, identified by the received acting network ID, as the home network. The communication device then registers on the second network in response to the reprioritizing the second network.

Method and apparatus for communications network management

A method () to provide for provisioning and a product. In one embodiment a processor () receives a pre-configured data image and writes it to a first area () of non-volatile memory () using, for example a first writing mode. Thereafter, for example after a power cycle the processor () determines whether an update to a second area of the non-volatile memory is required, and if so converts a first data item from the first area into a second data item uniquely associated with the product unit and writes the second data item in a second area () using a second writing mode.

Method for provisioning and product

An encryption code and at least one key are provided to a secure transmission device, via an external keying device, and stored in a volatile memory. A user code, entered via a keypad by a user, is received by the secure transmission device. An encrypted representation of the at least one key, based on the encryption code and the at least one key, is generated and stored in a non-volatile memory. Also, an encrypted representation of the encryption code and the user code, based on the user code, are generated and stored in the non-volatile memory. Upon power down of the secure transmission device, the at least one key and encryption code stored in the volatile memory are erased.

Method for loading and utilizing a key in a secure transmission device

An encryption code and at least one key are provided to a secure transmission device, via an external keying device, and stored in a first volatile memory. An encrypted representation of the at least one key, based on the encryption code and the at least one key, is generated and stored in a non-volatile memory. Upon power down of the secure transmission device, the encryption code is stored in a second volatile memory and the at least one key and encryption code stored in the first volatile memory are erased.

Growing community of inventors

Grayslake, IL, United States of America

Kent D Rager