Data-protecting microprocessor circuit for portable record carriers, for example credit cards
作者： Franz Dr. Weikmann
DOI:
关键词:
摘要: In this microprocessor circuit, a protective circuit is provided which prevents access to unauthorised memory areas, particularly when so-called user programs are executed. The decoupled from the actual but preferably on integrated accommodating microprocessor.
lens.org 参考文章(17)
Hendrik Vrielink, Arrangement for protecting against the unauthorized reading of program words stored in a memory ,(1983)
Ian M. Green, Program storage hardware with security scheme ,(1983)
Hiroshi Watanabe, IC card which can set security level for every memory area ,(1986)
Vikram Kowshik, Sudhakar Boddu, Elroy M. Lucero, Programmable memory data protection scheme ,(1989)
Kevin G. Curran, Steven Eric Golson, Christian S. Rode, Software protection methods and apparatus ,(1983)
Russell Fredrick Vaughan, Mark Steven Anastas, Secure implementation of transition machine computer ,(1980)
William M. Keshlear, John E. Zolnowsky, Richard D. Crisp, Memory management unit having means for detecting and preventing mapping conflicts ,(1981)
Greg N. Stewart, Michael D. Durkin, Digital computer code word identification system ,(1989)
Tetsuo Suzuki, Yasuhiro Wakimoto, Single chip microcomputer having unauthorized memory space access protection ,(1991)