BIG DATA INTEGRATED SECURITY SYSTEM BASED ON SDES AND DUAL ROUND ERROR CONTROL

To solve the problem of data confidentiality, integrity and data loss in big data transmission, a big data integrated security system based on simplified data encryption standard (SDES) and dual round error control is proposed. SDES encryption algorithm was used to generate encrypted string, and backup system for unexpected data loss was designed to improve confidentiality and prevent accidental data loss. Based on dual round error control, any number of discrete or continuous error bits contained in the transmission process was controlled with low space cost, and lossless compression technology based on fixed length coding (FLC) was used to reduce data overhead. The proposed algorithm has higher AE value, entropy and compression percentage, and has the potential to provide higher data confidentiality and integrity.