Method and apparatus for implementing key stream hierarchy

摘要

Various methods for implementing keystream hierarchy in a distributed memory environment are provided. One example method may comprise causing a generated keystream to be accessed on a memory device, wherein the keystream was generated in an instance in which the memory device was in radio communications range. One example method may further comprise determining a session key based on the generated keystream and a modified keystream. In some example embodiments, the modified keystream is created by the memory device based on the generated keystream and a keystream received by the memory device from a second device. One example method may further comprise causing communications data to be transmitted to the memory device or to the second device. In some example embodiments, the communications data is protected using at least a portion of the session key and is intended for the second device.

主权项

1. A method comprising:
accessing a modified keystream on a memory device, wherein the modified keystream is created by the memory device based on a generated keystream and a keystream received by the memory device from a second device; determining, via a processor, a session key based on the generated keystream and the modified keystream, wherein the generated keystream was previously transmitted to the memory device in an instance in which the memory device was in radio communications range; transmitting communications data to the memory device or to the second device, wherein the communications data is protected using at least a portion of the session key and is intended for the second device; determining a second session key based on a second generated keystream and a second modified keystream; wherein the second modified keystream is created by the memory device based on the second generated keystream and a keystream received by the memory device from a third device; and transmitting communications data to the memory device, wherein the communications data is secured using the second session key and is intended for the third device.