keyed by common fill devices (CFDs). The AN/CYZ-10 supports both the DS-101 and DS-102 interfaces. It was developed in the early 1990s, weighs about 4 lb (1.8 kg), and was 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 CFDs, including the KYK-13, KYX-15 electronic storage devices, and the KOI-18 paper tape reader. Only the DTD and the KOI-18 support newer, 128-bit keys. Secure DTD2000 System (SDS) - Named KIK-20, this was the next generation common fill device replacement for the DTD when it started production in 2006. It employs the Windows CE operating system. AN/PYQ-10 Simple Key Loader (SKL) - a simpler replacement for the DTD. KSD-64 Crypto ignition key (CIK) KIK-30, a more recent fill device, is trademarked as the "Really Simple Key Loader" (RASKL) with "single button key-squirt." It supports a wide variety of devices and keys. The older KYK-13, KYX-15 and MX-10579 are limited to certain key types. See also List of cryptographic key types References External links Fill devices KYX-15 pictures Key management Encryption device accessories National Security Agency encryption devices