To XTS5000:
I think the radio I have is a legitimate one. That is, it is NOT illegal to own. My radio has standard DES, AES encryptions, not type 1 encryption of any kind. I believe the radio has been downgraded before surplus radio was sold off by a government agency. The following is an excerpt from Sierra's brochure on CCI encryption modules. Refer to the sentence between 5 asterisks.
The NSA-certified Sierra™ module is an embeddable encryption technology that combines the advantages of the government’s high-grade security (Type 1) with the cost efficiency of a reprogrammable, commercially produced, Type 3 and Type 4 encryption module. Sierra can take on multiple encryption personalities depending on the mission, providing encryption/decryption functionality, digital voice processing (vocoding), and cryptographic key management support functions. Sierra’s software programmability provides a low-cost migration path for future upgrades to embedded communications equipment without the logistics and cost burden normally associated with upgrading hardware. ***** The module provides the user the capability to remove the Type 1 functionality, allowing the device to be downgraded from a CCI device to an unclassified device.***** Sierra’s small size, low power, and high data rates make it an ideal choice for battery-sensitive applications. It is ideally suited for military radios, APCO Project 25 radios, wireless LANs, remote sensors, guided munitions, UAVs, and other equipment requiring a low-power, programmable solution.