AN/CYZ-10

The AN/CYZ-10, or Data Transfer Device (DTD) is an NSA-developed, portable, hand-held device capable of securely receiving, storing, and transferring data between compatible cryptographic and communications equipment. It is capable of storing 1,000 keys, maintains an automatic internal audit trail of all security-relevant events that can be uploaded to the LMD/KP, encrypts key for storage, and is programmable. The DTD is capable of keying multiple information systems security (INFOSEC) devices and is compatible with such COMSEC equipment as Single Channel Ground and Airborne Radio System (SINCGARS) radios, KY-57 VINSON, KG-84, and others that are keyed by CFDs.

The DTD is designed to be fully compatible with future INFOSEC equipment meeting DS-101 signaling and benign fill standards. It will eventually replace the legacy family of common fill devices (CFDs), including the KYK-13, KYX-15 electronic storage devices, and the KOI-18 paper tape reader. Note that only the DTD and the KOI-18 support newer, 128-bit keys.