Method and apparatus for data security for a computer
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United States of America Patent
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-
Nov 3, 1998
Issued Date -
N/A
app pub date -
Apr 29, 1997
filing date -
Oct 26, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A secure password log-in system for a computer having a keyboard with a keyboard data link to a keyboard controller comprises a data diverter circuit interposed in the keyboard data link between the keyboard and the keyboard controller; a boot read-only memory (ROM) having at least one pre-stored password for comparison with a password entered by a user; a boot controller connected to the boot ROM; and a bypass data link between the data diverter circuit and the boot controller. The boot controller, executing a boot routine from the boot ROM, causes entered keystrokes constituting a password to be diverted via the bypass data link to the boot controller.
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