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HC-500 series

CRYPTOMATIC was a family of electronic encryption/decryption devices for text-based messages, introduced between 1975 and 1995 by Crypto AG (Hagelin) in Zug (Switzerland). Some of these devices were (partly) developed by Motorola (US) and Siemens (Germany), and use a crypto­graphic algorithm (cryptologic) that was developed by the US National Security Agency (NSA) and inserted by the CIA. Certain versions of the algorithm contain an exploitable weakness (backdoor) [1].

500-series devices on this website
HC-520 CRYPTOMATIC portable off-line cipher machine
HC-530 CRYPTOMATIC portable electronic cipher machine
HC-550 CRYPTOMATIC desktop electronic cipher machine (off-line)
HC-570 CRYPTOMATIC desktop electronic cipher machine
HC-580 CRYPTOMATIC desktop electronic cipher machine (on-line)
Rackmount model for serial computer signals
5000-series devices on this website
Hand-held message terninal with encryption
Data encryptor
  1. Crypto Museum, Operation RUBICON
    February 2020.
Further information
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Crypto Museum. Created: Monday 06 January 2020. Last changed: Monday, 10 February 2020 - 16:06 CET.
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