Cryptography – Cryptanalysis
Patent
1995-12-18
1998-09-22
Buczinski, Stephen C.
Cryptography
Cryptanalysis
395490, H04L 900, G06F 1214
Patent
active
058126627
ABSTRACT:
An apparatus for protecting a software in a program-controlled object such as a video game having a main part with a controlling means and a peripheral equipment; and a replaceable part with a software comprising an execution program. The apparatus comprises a data generator located on the replaceable part for producing a specific data; a selection means located on the replaceable part and controlled from the main part, for selecting a mode of generation of the specific data; and an interface circuit for connecting the data generator and the selection means to the main part.
A method for protection a software running a video game or other program-controlled object resides in providing an inspection program with a predetermined data in the software, initializing generating a specific data, reading the specific data and cooperating the specific data with the predetermined data. The positive result of the cooperation that can be a comparison, a calculation, a decoding, etc. is used to verify the existence of an authorized hardware and give an authorization for performing the execution program running the object.
REFERENCES:
patent: 4462076 (1984-07-01), Smith
patent: 4905280 (1990-02-01), Wiedemer
patent: 5004232 (1991-04-01), Wong et al.
patent: 5070479 (1991-12-01), Nakagawa
patent: 5155768 (1992-10-01), Matsuhara
patent: 5448045 (1995-09-01), Clark
patent: 5592651 (1997-01-01), Rackman
Hsu Jerry
Shen Sidney
Buczinski Stephen C.
United Microelectronics Corporation
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