Key tape reader KOI-18, or KOI-18/TSEC, is a portable handheld electronic device for reading cryptographic keys of variable length from 8-level (8-bit) punched paper tape and transfering them to cryptographic equipment and key fill devices, developed around 1976 by the US National Security Agency (NSA) for use by the American armed forces and NATO.

The KOI-18 is a battery-operated tape reader which reads the tape containing the keys and converts the information therein to a serial output and transfers the keys to the COMSEC equipment or to the other common fill devices (KYK-13 or KYX-15).

The KOI-18 is a battery operated Key Tape Reader that converts physical key tape into an electronic format for use in the KYK-13, KYX-15, and the AN/CYZ-10 devices. It is capable of accepting both paper and mylar tapes. The KOl-18 has no storage capability.

The KOI-18 can also be used to load keys into other fill devices that do have internal storage, such as the KYK-13 and AN/CYZ-10. The KOI-18 only supports the DS-102 interface.

This student's handbook provides the student with all the necessary information on the training objectives and guides the student through all learning activities of TSEC/ KG-81 Key Generator, KOI-18/TSEC Tape Reader, KYK-13/TSEC Fill Device, HNP-81-4 Power Supply and HNF-81-4 Frame of HISPEED.

The KOI-18 is a hand-held paper tape reader developed by the U.S. National Security Agency as a fill device for loading cryptographic keys, or "crypto variables," into security devices, such as encryption systems.

The KOI-18 is a hand-held paper tape reader developed by the U.S. National Security Agency as a fill device for loading cryptographic keys, or "crypto variables," into security devices, such as encryption systems. It can read 8-level paper or PET tape, which is manually pulled through the reader slot by the operator.

The KOI-18 is a hand-held paper tape reader developed by the U.S. National Security Agency as a fill device for loading cryptographic keys, or "crypto variables," into security devices, such as encryption systems. It can read 8-level paper or PET tape, …

The KOI-18 is a hand-held paper tape reader developed by the U.S. National Security Agency as a fill device for loading cryptographic keys, or "crypto variables," into security devices, such as encryption systems. It can read 8-level paper or PET tape, which is manually pulled through the reader slot by the operator.

2024年1月28日 · The KOI-18 is a hand-held paper tape reader developed by the U.S. National Security Agency as a fill device for loading cryptographic keys, or "crypto variables," into security devices, such as encryption systems. It can read 8-level paper or PET tape, which is manually pulled through the reader slot by the operator.