Design of Sensitive Information Encryption and Decryption System Based on Branch Obfuscation Algorithm

The existing sensitive information encryption and decryption system has the problem of imperfect encryption and decryption model, which leads to a long node request time. A sensitive information encryption and decryption system based on branch obfuscation algorithm is designed. Hardware part: using ultra-long instruction set multimedia application chip, reading data by PC, and expanding the width of external memory interface; Software: obtain the characteristics of sensitive information network, disrupt the information ranking and then encrypt, construct encryption and decryption model of confidential communication, transmit data through public channels, extract encryption and decryption identification of sensitive information, and design the storage and control function of system software with branch obfuscation algorithm. Experimental results: The average node request time of the sensitive information encryption and decryption system in this paper and the other three encryption systems are 99.477ms, 133.145ms, 135.611ms, 135.941ms respectively, indicating that the sensitive information encryption and decryption system integrated with branch obfuscation algorithm has higher application value.