King's College London

Research portal

The impact of ‘Tempest’ on Anglo-American communications security and intelligence, 1943-70

Research output: Contribution to journalArticle

Original languageEnglish
JournalIntelligence and National Security
Volume36
Issue number1
Accepted/In press17 Jul 2020

King's Authors

Abstract

This article examines the impact of the discovery by Britain and the United States in the late 1940s/early 1950s that cipher machines produced compromising emissions, a phenomenon which became known as Tempest. The British and Americans were forced to develop security measures to protect their encrypted communications but the Soviet Union was still able to exploit Tempest emissions from cipher machines in Western embassies in Moscow and read their diplomatic traffic. At the same time, Tempest became an important new way for the NSA and GCHQ to gather communications intelligence, particularly from developing world states and NATO allies.

View graph of relations

© 2020 King's College London | Strand | London WC2R 2LS | England | United Kingdom | Tel +44 (0)20 7836 5454