Abstract:
In various embodiments, methods, devices and systems for securely generating, sealing, and restoring factory-generated calibration and provisioning data for an electronic device are described, in which calibration and provisioning data for an electronic device are generated in a distributed manner and stored on a storage system. The calibration data can be retrieved from the storage system during device assembly and finalized calibration and provisioning data for each electronic device can be stored to the storage system. In one embodiment, a sealing server, to attest to the authenticity of the factory-generated data, seals the finalized calibration data. In one embodiment, an electronic device can access a data store containing the factory-generated data and can update or restore calibration or provisioning data for the device from the data store.
Abstract:
Methods for operating a portable electronic device to conduct a mobile payment transaction at a merchant terminal are provided. The electronic device may verify that the current user of the device is indeed the authorized owner by requiring the current user to enter a passcode. If the user is able to provide the correct passcode, the device is only partly ready to conduct a mobile payment. In order for the user to fully activate the payment function, the user may have to supply a predetermined payment activation input such as a double button press that notifies the device that the user intends to perform a financial transaction in the immediate future. The device may subsequently activate a payment applet for a predetermined period of time during which the user may hold the device within a field of the merchant terminal to complete a near field communications based mobile payment transaction.
Abstract:
In various embodiments, methods, devices and systems for securely generating, sealing, and restoring factory-generated calibration and provisioning data for an electronic device are described, in which calibration and provisioning data for an electronic device are generated in a distributed manner and stored on a storage system. The calibration data can be retrieved from the storage system during device assembly and finalized calibration and provisioning data for each electronic device can be stored to the storage system. In one embodiment, a sealing server, to attest to the authenticity of the factory-generated data, seals the finalized calibration data. In one embodiment, an electronic device can access a data store containing the factory-generated data and can update or restore calibration or provisioning data for the device from the data store.
Abstract:
A method of restoring confidential information items of a first device to a second device by using a set of servers. The method generates a public and private key pair and ties the private key to the hash of executable code of the servers at the time of generating the public and private keys. The method receives the encrypted confidential information items in a secure object which is encrypted with a user-specific key and the public key. The method only provides the confidential information to the second device when the second device provides the same user-specific key as the key that encrypts the secure object and the hash of the executable code of the servers at the time of accessing the private key to decrypt the secure object matches the hash of the executable code running on the servers at the time of generating the private key.