CRYPTOGRAPHIC EXPANSION DEVICE AND RELATED PROTOCOLS

摘要

A cryptographic expansion device that can be attached to a communication component of a communication device to enable the communication device to perform cryptographic operations on communications sent to and from the communication device is described. When used with a communication device, the cryptographic expansion device enables the communication device to send and received end-to-end secure encrypted communications. The cryptographic expansion device can be used with a communication device without requiring any changes to the internal software or hardware of the communication device and without requiring any modification to the communication protocols of the communication device. In some embodiments, the end-to-end secure communications enabled by the cryptographic expansion device can be utilized by a user of the communication device to perform financial and/or banking transactions.

主权项

1. A label comprising:
a first set of electrical contacts disposed on a top side of the label for interfacing to a communication device; a second set of electrical contacts disposed on a bottom side of the label for interfacing to a communication component; a coupling element configured to attach the label to the communication component; and a hardware security module disposed in the label and coupled to the first and second sets of electrical contacts, wherein the hardware security module includes a secure processing unit and a public processing unit.