AN/PYQ-10
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The AN/PYQ-10 Simple Key Loader (SKL) is a portable, hand-held fill device, for securely receiving, storing, and transferring data between compatible cryptographic and communications equipment. Developed under the auspices of the United States Army and the National Security Agency, it is intended to supplement and eventually replace the AN/CYZ-10 Data Transfer Device (DTD). The SKL provides all the functions currently resident in the DTD and incorporates new features that provide streamlined management of COMSEC key, Electronic Protection (EP) data, and Signal Operating Instructions (SOI). The SKL is backward-compatible with existing End Cryptographic Units (ECU) and forward-compatible with future security equipment and systems.
