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KY-68
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This article or section may be confusing or unclear for many readers. Please improve the article or discuss this issue on the talk page. This article has been tagged since December 2006. |
The TSEC/KY-68 is a ruggedized telephone terminal with a built-in encryption/decryption module for secure traffic. It can be used in the field. It is a full-duplex voice and data interface terminal that converts voice to digital form, encrypts it and transmits at 16 or 32 kbit/s. The KY-68 can operate via civilian and military switches. Although used primarily for secure communications, the KY-68 can operate with a Digital Non-secure Voice Terminal - a DNVT as its partner. The local switch provides the KY-68 user with a warning tone when communicating with a nonsecure terminal; however, the tone stops as soon as the DNVT user picks up the handset. For data communications, the KY-68 is equipped with a data port for encryption with various data devices.
The key is inserted into the KY-68 using a KYK-13 keying device.
The office version of the KY-68 is the KY-78. It is made from lighter materials, but has the same insides as the KY-68.
The KY-68 and KY-78 are approved at the SECRET level.
The KY-78 was compromised in the early 1990's, but it and the KY-68 are still in use.
- Jerry Proc's page on the KY-68
- The Signal Leader's Guide — Field Manual 11-43
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