Government Communications Headquarters - Communications-Electronics Security Group

The Communications-Electronics Security Group (CESG) of GCHQ provides assistance to government departments on their own communications security: CESG is the UK national technical authority for information assurance, including cryptography. CESG does not manufacture security equipment, but works with industry to ensure the availability of suitable products and services, while GCHQ itself can fund research into such areas, for example to the Centre for Quantum Computing at Oxford University and the Heilbronn Institute at the University of Bristol.

CESG runs a number of schemes such as CHECK, CLAS, and CAPS.

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