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USA NSA Voice SAVILLE ANDVT → ← NESTOR
Wideband Digital Voice Terminal
VINSON is a family of wideband secure voice
devices (WBSV), developed
in the mid-1970s by or behalf of the US
National Security Agency (NSA).
The devices use 16 Kbit/s CVSD audio compression 1 and the NSA
Suite A
Type 1
SAVILLE encryption algorithm. VINSON replaces the
NESTOR devices from the Vietnam-era, such as the
KY-8 and KY-38.
VINSON devices provide tactical secure voice for VHF and UHF
line-of-sight (LOS) and SATCOM radio equipment, and for tactical
telephone systems. When unkeyed, VINSON devices are unclassified
Controlled Cryptographic Items (CCI). Whe keyed, they assume the
classification level of the provided KEY material.
VINSON was in production until 1993, after which the devices were
gradually replaced by ANDVT equipment like KY-99 and
KY-100. Nevertheless, the NSA started a modernisation program
in 2013, to provide drop-in replacements for KY-57 and
KY-58, based on modern electronics [2].
The program was known as VINSON/ANDVT Cryptographic Modernization
(VACM), and in 2014 the development contract was awarded to
Raytheon [3].
This has resulted in the backward compatible KY-57M and KY-58M,
which have been in production until at least 2021 [4].
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Fascinator uses CVSD at 12 Kbit/s. Some KY-57 units
were modified for interoperability with Fascinator.
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© Crypto Museum. Created: Friday 19 April 2024. Last changed: Thursday, 02 May 2024 - 06:38 CET.
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