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BID 610

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BID 610
Date invented1960s
Typecipher machine

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]

References

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  1. ^ Easter, David (2019). "Protecting secrets: British diplomatic cipher machines in the early Cold War, 1945–1970". Intelligence and National Security. 34 (2): 157–169. doi:10.1080/02684527.2018.1543749. S2CID 158622527.
  2. ^ Aldrich, Richard (2010). GCHQ. Harper Press. p. 210. ISBN 9780007312665.
  3. ^ a b c "BID 610 (Alvis)".
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