Title:
SECRET CODE SYSTEM PROCESSOR
Document Type and Number:
Japanese Patent JPS6017560
Kind Code:
A
Abstract:
PURPOSE:To keep a secret of a secret number in a secret code system and secure the secret number from leakage by keeping only customers' own secret code keys in a center. CONSTITUTION:A memory 2, keyboard control circuit 3, bank note pay-out control circuit 4, card system control circuit 5 and voucher issuing control circuit 6 are connected with a CPU1 of the cash dispenser (CD) to which a line control circuit 12 and DES chip 13 decoding the secret number are connected. The DES chip codes or decodes based upon the secret code system of the DES method. This secret code system is to code a message by the secret code key and transmit it. The receiving party decodes it to an uncoded message by the same key.
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Inventors:
YOSHIDA SHINYA
Application Number:
JP12516983A
Publication Date:
January 29, 1985
Filing Date:
July 08, 1983
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
G07D9/00; G06Q20/40; G06Q40/00; G06Q40/02; (IPC1-7): G06F15/30
Domestic Patent References:
| JPS5286744A | 1977-07-19 |
Attorney, Agent or Firm:
Hisao Komori