Cryptography – Cryptanalysis
Patent
1989-08-25
1991-06-04
Buczinski, Stephen C.
Cryptography
Cryptanalysis
380 25, 380 50, 34082531, 34082534, H04L 932
Patent
active
050220772
ABSTRACT:
An apparatus and method for protecting BIOS stored on a direct access storage device into a personnal computer system. The personal computer system comprises a system processor, a system planar, a random access main memory, a read only memory, a protection means and at least one direct access storage device. The read only memory includes a first portion of BIOS and data representing the type of system processor and system planar I/O configuration. The first portion of BIOS initializes the system and the direct access storage device, and resets the protection means in order to read in a master boot record into the random access memory from a protectable partition on the direct access storage device.
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Bealkowski Richard
Blackledge, Jr. John W.
Cronk Doyle S.
Dayan Richard A.
Dixon Jerry D.
Brown, Jr. Winfield J.
Buczinski Stephen C.
Gregory Bernarr Earl
International Business Machines Corp.
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