Generating secure device secret key

摘要

Methods, devices, systems and computer program products are provided to facilitate cryptographically secure retrieval of secret information that is embedded in a device. The embedded secret information can include a random number that is not custom-designed for any specific requestor of the secret information. Upon receiving a request for the embedded secret information, an encrypted secret is provided to the requestor that enables the recovery of the embedded secret information by only the requestor. Moreover, a need for maintenance of a database of the embedded secret information and the associated requestors is eliminated.

主权项

1. A method in a device for providing secret information, comprising:
receiving, at the device, a request for secret information from a requesting device; determining whether the requesting device has previously received the requested secret information; in response to determining that the requesting device has not previously received the requested secret information:
encrypting, in the device, the secret information, andtransmitting the encrypted secret information to the requesting device; and in response to determining that the requesting device has previously received the secret information, initiating a reset of the device.