Secure offline mobile interactions

A mobile communication device comprising:

• a processor;
• a computer readable medium coupled to the processor and containing instructions for causing the processor to perform operations comprising:
• receiving from an access device, a value request message requesting access tokens for an interaction;
• retrieving a plurality of access tokens;
• providing access data comprising the plurality of access tokens to the access device;
• receiving an access request message comprising the plurality of access tokens from the access device;
• retrieving a plurality of value elements respectively stored in a plurality of data lockers in a data vault in the mobile communication device respectively using the plurality of access tokens;
• and
• providing the plurality of value elements to the access device, thereby causing the access device to allow access to a resource.

An access device comprising:

• a processor;
• a computer readable medium coupled to the processor and containing instructions for causing the processor to perform operations comprising:
• providing to a mobile communication device, a value request message requesting access tokens for an interaction;
• receiving, from the mobile communication device, access data comprising a plurality of access tokens generated by the mobile communication device;
• providing, to the mobile communication device, an access request message comprising the plurality of access tokens;
• receiving, from the mobile communication device, a plurality of value elements respectively stored in a plurality of data lockers in a data vault in the mobile communication device respectively using the plurality of access tokens;
• and
• providing, to the mobile communication device, access to a resource in response to receiving the plurality of value elements.