System encrypting method using multifunctional assistant SCM

A system encrypting method adopting a multiple use supplementary single-chip microcomputer is disclosed. The method adopts a single-chip microcomputer built-in a burning (prevent being read out) program memory instead of a supplementary microprocessor whose function is simple relatively and the soft...

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Bibliographic Details
Main Authors LIN YAOLIANG, FAN JINHUA, ZENG QINGJIANG
Format Patent
LanguageChinese
English
Published 11.02.2009
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A system encrypting method adopting a multiple use supplementary single-chip microcomputer is disclosed. The method adopts a single-chip microcomputer built-in a burning (prevent being read out) program memory instead of a supplementary microprocessor whose function is simple relatively and the software code amount is small (such as a power supply managing supplementary microprocessor) in a multi-microprocessor system. A password verifying according to an appoint encrypting protocol algorithm is added to the main processor program and the supplementary single-chip microcomputer program, thus the program can not be read out and it could not be copied, therefore achieving the purpose of encrypting the system.
Bibliography:Application Number: CN200510045425