Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1993-09-13
1996-02-20
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 4, 380 9, 380 21, 380 23, 380 29, 380 49, 235379, 235380, H04L 900, H04L 906, H04L 908, H04L 932
Patent
active
054936136
ABSTRACT:
A secure terminal is disclosed which has a single keypad and display which is suitable as a debit terminal, as both confidential and nonconfidential information can be entered. Confidential information is entered in secure text mode whereas nonconfidential information is entered in clear text mode. The terminal defaults to secure text mode where all information is encrypted. In clear text mode all prompts are independently authenticated by a secure module prior to displaying of the prompt. Prompts for clear text mode are preprogrammed preferably with an Authentication Parameter which is confirmed by the secure module whenever that prompt is used in clear text mode. The invention is also directed to the methods for rendering a terminal and system secure for receiving confidential and nonconfidential information.
REFERENCES:
patent: 3778595 (1973-12-01), Hatanaka et al.
patent: 3845277 (1974-10-01), Voss et al.
patent: 3862716 (1975-01-01), Black et al.
patent: 3973237 (1976-08-01), Sawaguchi et al.
patent: 4183085 (1980-01-01), Roberts et al.
patent: 4302810 (1981-11-01), Bouricius et al.
patent: 4408203 (1983-10-01), Campbell
patent: 4509136 (1985-04-01), Horigome et al.
patent: 4529870 (1985-07-01), Chaum
patent: 4536647 (1985-08-01), Atalla et al.
patent: 4949240 (1990-08-01), Iijima
patent: 5237609 (1993-08-01), Kimura
Denno Rodney G.
Hemy Martin F.
Sutton Charles R.
Gregory Bernarr E.
International Verifact Inc.
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