Abstract: A comprehensive solution for providing secure mobile communication is provided. The system includes techniques for authentication and control of communication end-points; chain of trust to ensure devices are certified as authentic; contact list management; peer-to-peer encrypted voice, email, and texting communication; and a technique for bypassing an IP PBX to ensure high levels of security. The system is able to support use of commodity mobile communication devices (e.g., smart phones, laptops) over public carrier networks.

Abstract: A system includes a sleeve capable of allowing a host-computing device to be positioned therein. The sleeve itself includes a processing device and a serial interface adapter to allow communication between the secure sub-joined computing device and the host communication device. The secure sub-joined computing device will include an authentication device to authenticate the identity of the user. The secure sub-joined computing device will be able to accommodate a wide variety of host devices and provide an exclusive computing environment where strong authentication and encryption can be performed with or without the knowledge of the host device and host means to communicate the data from the device. The secure sub joined computing device can be configured to be limited to operate within a configured geographic boundary. The system includes software such as the source or executable files necessary to perform the instructions or algorithms.