Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent
1998-03-31
2000-08-01
Hua, Ly V.
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
713201, G06F 1100
Patent
active
060981717
ABSTRACT:
Provides management tools for a System Owner to assure that a personal computer system is secured against access by an unauthorized user by foreclosing the possibility of circumventing a system's security protection during an adapter ROM scan. If security function, such as that for C2 functionality, is enabled, prior to the adapter ROM Scan for the system, the POST code detects whether or not disabling of the keyboard during adapter ROM Scan is enabled. If enabled, the keyboard is disabled or locked prior to adapter ROM Scan. On some systems, the security function may not be used and, the system does not consider password protection for the adapter utilities. If however, the security functionality of the system is enabled, the POST code will continue to enable the password protection for the adapter ROM Scan. Once the input device, e.g., keyboard, is disabled the adapter ROM scan will begin. Upon completion of the adapter ROM scan, the input device will be enabled and progress will continue through POST.
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Bonomo Ralph
Freeman Joseph Wayne
Johnson Robert Duane
Springfield Randall Scott
Bogdon Bernard D.
Dillon Andrew J.
Hua Ly V.
International Business Machines - Corporation
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