KL-7
| KL-7 Cipher Machine  | |
| Date invented | 1949 | 
|---|---|
| Common manufacturers | NSA, NATO | 
| Type | Cipher Machine | 
| Language | Italian, 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.