OBFUSCATION METHOD OF ANDROID APPLICATION USING PARTIAL ENCRYPTION OF DEX FILE IN ANDROID APPLICATION PACKAGE

摘要

The present invention relates to an obfuscation method of an android application using partial encryption of a DEX file in an android application package (APK). The obfuscation method of an android application by a processor of a mobile terminal using an android as an operating system includes the steps of: converting the DEX file to an assembler for android′s DEX format (SMALI) file; selecting a source code to be changed; replacing the selected source code with an index code and encrypting and storing an original code in a separate file; and generating the DEX file which is changed. The present invention can prevent application piracy.;COPYRIGHT KIPO 2018