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- KL-7 abstract "The TSEC/KL-7, code named ADONIS and POLLUX, was an off-line non-reciprocal rotor encryption machine. The KL-7 had eight rotors to encrypt the text, seven of which moved in a complex pattern, controlled by notched rings. The non-moving rotor was in fourth from the left of the stack. The encrypted or decrypted output of the machine was printed on a small paper ribbon. It was the first cipher machine to use the re-entry (re-flexing) principle, discovered by Albert W. Small, which re-introduces the encryption output back into the encryption process to re-encipher it again.The research for the new cipher machine, designated MX-507, was initiated in 1945 by the Army Security Agency (ASA) as a successor for the SIGABA and the less secure Hagelin M-209. Its development was turned over to the newly formed Armed Forces Security Agency (AFSA) in 1949. The machine was renamed AFSAM-7, which stands for Armed Forces Security Agency Machine No 7. It was the first crypto machine, developed under one centralized cryptologic organisation as a standard machine for all parts of the armed forces, and it was the first cipher machine to use electronics (vacuum tubes).In 1952, the machine was introduced by AFSA's successor, the U.S. National Security Agency, in the US Army, Navy and Air Force. In the early 1960s, the AFSAM-7 was renamed TSEC/KL-7, following the new standard crypto nomenclature. It was the most widely used crypto machine in the US armed forces until the mid-1960s. The KL-7 was also used by several NATO countries until 1983.".
- KL-7 thumbnail KL-7_from_front.jpg?width=300.
- KL-7 wikiPageExternalLink article?eu=117766.
- KL-7 wikiPageExternalLink kl-7.htm.
- KL-7 wikiPageExternalLink kl-7sim.htm.
- KL-7 wikiPageExternalLink index.htm.
- KL-7 wikiPageExternalLink 2984700.pdf.
- KL-7 wikiPageExternalLink kl7.html.
- KL-7 wikiPageExternalLink AFSAM_7.pdf.
- KL-7 wikiPageID "1011245".
- KL-7 wikiPageRevisionID "563014383".
- KL-7 align "left".
- KL-7 caption "Both sides of a KL-7 rotor".
- KL-7 direction "vertical".
- KL-7 hasPhotoCollection KL-7.
- KL-7 image "kl7_rotor_1.jpg".
- KL-7 image "kl7_rotor_2.jpg".
- KL-7 width "180".
- KL-7 subject Category:National_Security_Agency_encryption_devices.
- KL-7 subject Category:Rotor_machines.
- KL-7 comment "The TSEC/KL-7, code named ADONIS and POLLUX, was an off-line non-reciprocal rotor encryption machine. The KL-7 had eight rotors to encrypt the text, seven of which moved in a complex pattern, controlled by notched rings. The non-moving rotor was in fourth from the left of the stack. The encrypted or decrypted output of the machine was printed on a small paper ribbon. It was the first cipher machine to use the re-entry (re-flexing) principle, discovered by Albert W.".
- KL-7 label "KL-7".
- KL-7 label "KL-7".
- KL-7 label "KL-7".
- KL-7 sameAs KL-7.
- KL-7 sameAs KL-7.
- KL-7 sameAs m.03z087.
- KL-7 sameAs Q2511509.
- KL-7 sameAs Q2511509.
- KL-7 wasDerivedFrom KL-7?oldid=563014383.
- KL-7 depiction KL-7_from_front.jpg.
- KL-7 isPrimaryTopicOf KL-7.
