System and methods for data security using distance measurement

A base station comprising:

• a processor;
• and
• a computer readable medium, the computer readable medium comprising code, executable by the processor for performing a method comprising:
• transmitting to a mobile device, a first transmission comprising a first session identifier;
• receiving from the mobile device, a second transmission comprising a second session identifier and a first processing time value;
• generating a first distance measurement corresponding to a distance between the mobile device and the base station using the first processing time value;
• transmitting to the mobile device, a third transmission, wherein the mobile device generates a second distance measurement corresponding to the distance between the mobile device and the base station;
• generating a data element using the first distance measurement, and one or more of the first session identifier, the second session identifier, and/or a mobile device identifier corresponding to the mobile device;
• and
• transmitting the data element to an access device, wherein the access device receives a fourth transmission comprising a first cryptogram generated by the mobile device using the second distance measurement, and one or more of the first session identifier, the second session identifier, and/or the mobile device identifier, and wherein the access device validates the first cryptogram using the data element.