Software protection method and apparatus
作者： Andrew Pickholtz
DOI:
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摘要: In a method of and apparatus for limiting program execution to only an authorized data processing system, proprietary program, together with first second authorization codes, is stored on magnetic disc or other storage medium. The codes are read. A hardware module containing pseudorandom number generator unique the system receives code as key. resultant generated by generator, which function key particular algorithm, compared in direct encrypted form. An enable signal response positive comparison be executed.
google.com.sv 参考文章(8)
Richard Johnstone, Computer software security system ,(1977)
David W Terry, Ray H Thurmond, Parker R Blevins, Program security device ,(1968)
David C. Thomas, Method and apparatus for providing security for computer software ,(1981)
Laszlo Antal Belady, Clement Richard Attanasio, Operating system authenticator ,(1975)
Odo J. Struger, Theodore J. Markley, Lawrence W. Delong, Walter V. Casto, Program protection module for programmable controller ,(1977)
Robert Macandrew Best, Microprocessor for executing enciphered programs ,(1977)
Walter L. Tuchman, William F. Ehrsam, Stephen M. Matyas, Robert C. Elander, John L. Smith, Carl H. W. Meyer, Cryptographic file security for single domain networks ,(1977)
A Clarke, Security for computer systems ,(1972)