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Bulk Encryption Device
- wanted item
BID/980 was a bulk encryption device, manufactured around 1983
by Cossor Electronics Ltd.
(now: Raytheon) in Harlow (Essex, UK), for the British Ministry of Defence. They
were used by all three services of the British Army and were suitable for the
secure transmission of data via land-lines and radio. The device is also
known by its codename LAKIN.
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BID/980 was used on main communication trunks and allowed data to be transmitted
at speeds ranging from 32 kbps to 2.048 Mbps, in both auto-key and synchronous
modes.
The device was approved by SECAN for use by NATO and
features a HAIRPIN Key Generator
[1], making it compatible with NATO's standard
Trunk Encryption Device (TED): the KG-81.
Key variables were loaded into the device by means of an 8-level punched
paper tape that had to be pulled through the tape reader at the front.
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At present, no further information about the BID/980 is available to us.
If you have worked with these devices, either in the British Army or at
NATO, please let us know.
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- BID/980/1 - Speed 2.048 Mbps, internally clocked, AC power supply
- BID/980/1V1 - Speed 32 Kbps to 2.048 Mbps, externally clocked, AC power supply
- BID/980/1V2 - Speed 64 Kbps to 2.048 Mbps, externally clocked, EUROCOM D/1, AC
- BID/980/1V3 - as /1 but with DC power supply
- BID/980/1V4 - as /1V2 but with DC power supply
- BID/980/1V5 - as /1V2 but with DC power supply
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BID
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British Inter Departmental
Identification used for equipment used by the British Armed Forces
and various Government departments. BID is sometimes erroneously
explained as British Industrial Development (even by people in the know).
Each device is identified by the abbreviation 'BID' followed by a '/' and
a number, e.g. BID/950.
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CFB
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Cipher Feedback
A block cipher mode that enhanced ECB mode by chaining together
blocks of cipher text it produces, and operating on plaintext segments
of variable length, less than or equal to the block length.
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CTAK
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Cipher Text Auto-Key
Cryptographic logic that uses previous cipher text to generate a key stream.
(Depricated terminology, superceeded by CFB)
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KAK
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Key-auto-key
Cryptographic logic using a previous key to produce a key.
(Depricated terminology, superceeded by OFB)
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OFB
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Output feedback
a block cipher mode that modifies ECB mode to operate on
plaintext segments of variable length lesss than or equal to the
block length.
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© Copyright 2009-2013, Paul Reuvers & Marc Simons. Last changed: Thursday, 27 March 2014 - 15:23 CET
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