Method for backing up and erasing encryption keys

Details Method for backing up and erasing encryption keys Method for backing up and erasing encryption keys

1991-02-28

1992-07-14

Tarcza, Thomas H.

Cryptography

Electric signal modification

Having production of printed copy

380 21, 380 52, H04L 900

Patent

active

051310406

ABSTRACT:
A method for backing up and erasing encryption keys that provides a backup power supply (110) so that keys stored in a memory (104) will not be lost inadvertently, while still permitting keys to be erased, either in response to a low battery condition in the absence of the main supply (101), or in response to an external key erase input (105).

REFERENCES:
patent: 4882752 (1989-11-01), Lindman et al.
patent: 4924513 (1990-05-01), Herbison et al.

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