SAVILLE is a classified
NSA
The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collectio ...
Type 1 encryption algorithm, developed in the late 1960s, jointly by the
Government Communications Headquarters (GCHQ) in the UK and the
National Security Agency (NSA)
The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collectio ...
in the US.
It is used broadly, often for voice encryption, and implemented in many encryption devices.
Little is known publicly about the algorithm itself due to its classified nature and inclusion in the NSA's
Suite A. Some documentation related to the
KYK-13 fill device and statements made by military officials confirm that SAVILLE has a 128-bit key, which consists of 120 key bits and an 8-bit checksum. Furthermore, it is known that SAVILLE has two modes of operation: Autonomous Mode (also known as Key-Auto-KEY or KAK) and Autoclave Mode (also known as Cipher-Text Auto Key or CTAK).
On the
AIM microchip, it runs at 4% of the clock rate (compare
DES
Des is a masculine given name, mostly a short form (hypocorism) of Desmond. People named Des include:
People
* Des Buckingham, English football manager
* Des Corcoran, (1928–2004), Australian politician
* Des Dillon (disambiguation), sever ...
at 76% and
BATON
Baton may refer to:
Stick-like objects
*Baton, a type of club
*Baton (law enforcement)
*Baston (weapon), a type of baton used in Arnis and Filipino Martial Arts
*Baton charge, a coordinated tactic for dispersing crowds of people
*Baton (conductin ...
at 129%). The
Cypris chip mentions two modes; specifications for
Windster and
Indictor specify that they provide Saville I.
Some devices and protocols that implement SAVILLE:
*
Secure Telephone Equipment (STU)
* The
VINSON
VINSON is a family of voice encryption devices used by U.S. and allied military and law enforcement, based on the National Security Agency, NSA's classified NSA Suite A Cryptography, Suite A Saville (cipher), SAVILLE encryption algorithm and 16 ...
family (voice encryption)
* UK Lamberton (BID/250)
*
APCO Project 25 (single-channel land mobile radios) (Saville has algorithm ID 04)
* Versatile encryption chips:
AIM,
Cypris
Aphrodite ( ; grc-gre, Ἀφροδίτη, Aphrodítē; , , ) is an ancient Greek religion, ancient Greek goddess associated with love, lust, beauty, pleasure, passion (emotion), passion, and procreation. She was syncretized with the Roman god ...
,
Sierra I/II,
Windster,
Indictor,
Presidio,
Railman
Spendex 40(also known as DBT)
References
External links
Block ciphers
Type 1 encryption algorithms
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