Vintage Cryptographic Algorithms from the 1980’s

This page is reserved for the description of old cryptographic algorithms, used in cryptographic appliances from the last two decades of the 20th century. They were possibly designed earlier, but used in equipment that was marketed and sold by Philips Usfa and its successor Philips Crypto.

The algorithm of the UA-8295 and UA-8296

Both devices were designed by NOKIA from Finland and equiped with the DES algorithm. See the descriptions at the online Cryptomuseum. Philips replaced the algorithms by more government friendly versions. In both devices the algorithm was programmed in embedded software stored in EPROM’s, so easy to readout, modify and replace. The two scans below are from the original description.

If you are interested in the description, please send an email with your name, address  and affiliation.