Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1993-02-18
1996-04-30
Powell, Mark R.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 4, 380 49, 380 28, 380 50, H04L 900
Patent
active
055132626
ABSTRACT:
A device for enciphering and deciphering with the aid of the DES algorithm data to be written to or read from a hard disk, wherein the input of a DES cipher device (25) is coupled, via a converter (26) for converting data words having a word width of 16 bits to data words having a word width of 64 bits, to a bus for transferring data words having a word width of 16 bits to and from a central processor unit, and to a bus for transferring data words having a word width of 16 bits to and from a disk storage unit and wherein the output of the DES cipher device is coupled, via a multiplexer (27) for converting data words having a word width of 64 bits to data words having a word width of 16 bits, to the bus of the central processor unit and to the bus of the disk storage unit.
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patent: 5349642 (1994-09-01), Kingdon
Hindin, Harvey J., "LSI-based data encryption discourages the data thief", Electronics, vol. 52, No. 13 (1979-06), pp. 107-120.
Opdam Nicolaas J. M.
van Maanen Jan
van Rumpt Harm W.
Vervoorn Willem J.
Michaelson Peter L.
Powell Mark R.
Tulip Computers International B.V
Tung Kee M.
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