KL-7

KL-7
KL-7 Cipher Machine
Date invented1949
Common manufacturersNSA, NATO
TypeCipher Machine
LanguageItalian, English

The TSEC/KL-7, also known as Adonis was an off-line non-reciprocal rotor encryption machine.: p.33ff  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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