The Efficient Implementation of the Android Kernel with China Standard Cryptographic Algorithm

With the rapid development of mobile intelligent terminal, an increasing number of mobile phones operating systems also came into being. Android system has become one of the most popular device operating systems, which prolongs its attention. Considering the legal requirement in communication security, the Android kernel encryption mechanism for analysis and summary of the Android kernel based on the China standard cryptographic algorithm security transformation. By adding the China standard cryptographic algorithm SM2/SM3/SM4 in the AOSP (Android Open Source Project) to replace the encryption algorithm in the Android 7.0 system, provides confidentiality and integrity protection, and improves the system's encryption performance. And promote the application of domestic password algorithm.