Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or... – Including point of sale terminal or electronic cash register
Patent
1998-04-06
2000-08-29
Peeso, Thomas R.
Data processing: financial, business practice, management, or co
Automated electrical financial or business practice or...
Including point of sale terminal or electronic cash register
713182, 713184, H03M 700
Patent
active
061121878
ABSTRACT:
An encryption communication system including a host and a data terminal card device is disclosed. The host includes a start information generation program circuit for generating password generation start information which has not been used in the past. When the data terminal card device is connected to the host for communication, a password generation program circuit included in the card device generates a password in accordance with the start information received from the host. The card device sends the generated password to the host for certification. If the received password is coincident with a password generated in the host, the host certifies the received password and allows communication to be held. An encryption circuit also included in the card device controls a plurality of different encryption programs in a sophisticated way so as to execute time-varying irregular control, thereby generating encrypted data.
REFERENCES:
patent: 5623637 (1997-04-01), Jones et al.
ANY Co., Ltd.
Peeso Thomas R.
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