KL-7
Sign in to saveAlso known as TSEC/KL-7, ADONIS, POLLUX, AFSAM-7
The TSEC/KL-7, also known as Adonis was an off-line non-reciprocal rotor encryption machine. The KL-7 had rotors to encrypt the text, most of which moved in a complex pattern, controlled by notched rings. The non-moving rotor was fourth from the left of the stack. The KL-7 also encrypted the message indicator.
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Encyclopedic overview
8 sectionsContents
- History and development
- Description
- Product details
- See also
- Notes
- References
- Sources
- External links
The TSEC/KL-7, also known as Adonis was an off-line non-reciprocal rotor encryption machine. The KL-7 had rotors to encrypt the text, most of which moved in a complex pattern, controlled by notched rings. The non-moving rotor was fourth from the left of the stack. The KL-7 also encrypted the message indicator.
==History and development== In 1945, the Army Security Agency (ASA) initiated the research for a new cipher machine, designated MX-507, planned as successor for the SIGABA and the less secure Hagelin M-209. In 1949, its development was transferred to the newly formed Armed Forces Security Agency (AFSA) who named the machine AFSAM-7, which stands for Armed Forces Security Agency Machine No 7.
Excerpted from Wikipedia’s “KL-7” article, available under the CC BY-SA 4.0 licence.