Method and apparatus for storing context information in a mobile device

A node of a wireless communication network, the node comprising:

• a network interface for transmitting data towards and receiving data from other nodes on the wireless communications network;
• a processor;
• and
• a memory for storing instructions that when executed by the processor cause the node to be configured to:
• transmit, toward a mobile device and using the network interface, both:
• context information associated with the mobile device and encrypted by a node in the wireless network different than the mobile device using an encryption key;
• and an indication of a location of a cryptographic key;
• and
• initiate storage of the cryptographic key at the indicated location, the cryptographic key associated with the encryption key and usable for decrypting the encrypted context information.

A node of a wireless communication network, the node comprising:

• a network interface for transmitting data towards and receiving data from other nodes on the wireless communications network;
• a processor;
• and
• a memory for storing instructions that when executed by the processor cause the node to be configured to:
• wirelessly receive, using the network interface, encrypted context information corresponding to a mobile device, and an indication of a cryptographic key for decrypting the context information;
• and
• retrieve the cryptographic key based on the indication, the retrieved cryptographic key used for decrypting the context information.

A mobile device communicatively coupled to a wireless communication network, the mobile device comprising:

• a wireless transmitter for transmitting data towards other nodes on the wireless communications network;
• a wireless receiver for receiving data from other nodes on the wireless communications network;
• a processor;
• and
• a memory for storing instructions that when executed by the processor cause the mobile device to be configured to:
• wirelessly transmit encrypted context information corresponding to and stored by the mobile device;
• and
• wirelessly transmit an indication of a cryptographic key, the indication stored by the mobile device and usable for retrieval of the cryptographic key, the cryptographic key stored separately from the mobile device and usable for decrypting the context information.