The Research And Implementation Of Chaotic Encryption Algorithm For Data Based On Embedded Systems

With the popularity of the applications of embedded system, the embedded data securityissues becomemoreand moreserious. Chaos refers toafixed,complex andrandom phenomena,which appears in nonlinear system. The research of chaos theory has caused widespreadconcerns. So it is predicted that chaotic encryption in embedded system will have a flourishingprospectintheforeseeablefuture.This paper researched the improvement and implementation of chaos encryption algorithmsintheembeddedsystem,themaincontentsandresultsareasfollows:1. Analysed and compared the implementation and performance of kinds of chaoticsystems,introducedtherelationshipbetweencryptographyandchaos. Basedontheshortcomingsthat logistic encryption algorithm is too complexity but confidentiality is not high, this paperenhanced the logistic mapping encryption algorithm by adding a new nonlinear function,improvedthecomplexityandconfidentialityofthelogisticmappingencryptionalgorithm.2. Analysed the hardware platform of Ericsson products CN1010, include the CPUsubsystemandSwitchkeymodulesubsystem,anddataexchangeincommunications.3. Analysed the software structure of the embedded platform CN1010 system, establisheda system environment for embedded system migration and cross-compile, under thatenvironment,compiledtheubootandtheembeddedLinuxkernel;completedembeddedsoftwareofEncryptionalgorithminCN1010platform.4. Analysed and optimized the performance of logistic image encryption algorithm byanalysis the gray, the key space and key sensitivity ,which confirms the effectiveness and safetyof optimization algorithms, taking Figure Lena for example, then implement the applications ofoptimizedencryptionalgorithminembeddedsystems.