Research And Implementation On Source Code Protection Under Liux Environment

With the rapid development of the networks and software industry, the security of software become an extremely important problem and attracted increasing attention. It is very important to software security by finding good methods to increase the security of software.The hidden security troubles of software's security exist in the courses of the designing, issuance and applying. The core technologies and source codes at developing process face the danger because of access by malicious attacker. In the issuance and applying process, by analysis software, the attackers can not only get the technical details, but also steal and attack the software. By deeply research on these security problems, the main contents are as follows:1. For security issues in the process of software development, design the access control method to the process of software development, given the detailed design process and security analysis. By combined with fine-grained access control, muti-factor strong authentication, kernel interception technology and multi-level encryption technology in order to achieve the source code file access for the strictly controlled.2. For security issues in the process of software distribution and using, analysis the packer technology on software protection, research on elf file packer under Linux environment, design a new software packer method.Enhanced the difficult of analysis on the executable file by use multi layer encryption, strong password encryption and Entire executable decrypted to memory. At the same time, enhance the packer software scalability by using reconfigurable method.