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- STU-II abstract "The STU-II is a secure telephone developed by the U.S. National Security Agency. It permitted up to six users to have secure communications, on a time-shared (e.g.: rotating) basis. It was made by ITT Defense Communications, Nutley, New Jersey. An OEM partner was Northern Telecom.According to information on display in 2005 at the NSA's National Cryptologic Museum, the STU-II was in use from the 1980s to the present. It uses the linear predictive coding algorithm LPC-10 at 2.4 kilobits/second to digitize voice, and the "Key Distribution Center" (KDC) for key management. The display also stated that the STU-II B is the standard narrow band secure telephone.STU-II replaced the STU-I, KY-3 and the Navajo I. The last was a secure telephone in a briefcase, of which 110 were built in the 1980s for use by senior government officials when traveling. The Navaho I also used LPC-10.Some 10 000 STU-II units were produced.".
- STU-II thumbnail STU-II.jpg?width=300.
- STU-II wikiPageExternalLink president-reagan-using-stu-ii-telephone.html.
- STU-II wikiPageExternalLink nsa_crypto_museum.
- STU-II wikiPageID "4320329".
- STU-II wikiPageRevisionID "595905977".
- STU-II hasPhotoCollection STU-II.
- STU-II subject Category:National_Security_Agency_encryption_devices.
- STU-II subject Category:Secure_communication.
- STU-II subject Category:Secure_telephones.
- STU-II type Artifact100021939.
- STU-II type Device103183080.
- STU-II type Instrumentality103575240.
- STU-II type NationalSecurityAgencyEncryptionDevices.
- STU-II type Object100002684.
- STU-II type PhysicalEntity100001930.
- STU-II type Whole100003553.
- STU-II comment "The STU-II is a secure telephone developed by the U.S. National Security Agency. It permitted up to six users to have secure communications, on a time-shared (e.g.: rotating) basis. It was made by ITT Defense Communications, Nutley, New Jersey. An OEM partner was Northern Telecom.According to information on display in 2005 at the NSA's National Cryptologic Museum, the STU-II was in use from the 1980s to the present.".
- STU-II label "STU-II".
- STU-II label "STU-II".
- STU-II sameAs STU-II.
- STU-II sameAs m.0bwy85.
- STU-II sameAs Q7394854.
- STU-II sameAs Q7394854.
- STU-II sameAs STU-II.
- STU-II wasDerivedFrom STU-II?oldid=595905977.
- STU-II depiction STU-II.jpg.
- STU-II isPrimaryTopicOf STU-II.
