BID 610 explained
BID 610 or Alvis was a British cipher machine[1] used by both British and Canadian governments.[2] [3] It was the first fully transistorised full-duplex online cipher machine used by the British Army.[3] It was introduced in the 1960s.[3]
External links
Notes and References
- Protecting secrets: British diplomatic cipher machines in the early Cold War, 1945–1970. Intelligence and National Security. 10.1080/02684527.2018.1543749. 2019. Easter. David. 34. 2. 157–169. 158622527.
- Book: Aldrich, Richard. GCHQ. limited. Harper Press. 2010. 210. 9780007312665.
- Web site: BID 610 (Alvis).