Data transmitting equipment

Details Data transmitting equipment Data transmitting equipment

1991-08-13

1992-11-24

Cangialosi, Salvatore

Cryptography

Key management

Having particular key generator

380 23, 395725, H04K 100

Patent

active

051669790

ABSTRACT:
A data transmitting equipment transmitting data between a desired remote equipment connected via communication line, comprising password setting means, communication control means and status display means. The password set by a user is stored in the password setting means. Transmission control means compare said password with a set password in a remote equipment, allow said data transmitting of said data if both passwords are consistent, delete said set password when said transmitting ended. If the password of the password setting means is not deleted, status display means show that said password remains in the password setting means. According to the above mentioned present invention the password is automatically deleted after the end of the data transmission, and moreover the set password is never displayed during or after use. Accordingly, an exposure of the password to a third party is prevented. Because the status of whether or not a password was set is displayed, as the need arises the user may reset the password as described above. Though the set password itself is not displayed, this is no impediment for the setting operation of the password.

REFERENCES:
patent: 4348696 (1982-09-01), Beier
patent: 4758718 (1988-07-01), Fujisaki et al.
patent: 4806745 (1989-02-01), Oogira
patent: 4926388 (1990-05-01), Kunita et al.
patent: 4926481 (1990-02-01), Collins, Jr.
patent: 5042067 (1991-08-01), Moriyama
patent: 5060263 (1991-10-01), Bosen et al.

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