A Realizing Method of Gap for Data Encryption and Integrity Protection

In order to ensure confidential data not leaked and tampered in transmission, a kind of data encryption and digital signature method is proposed. HASH function, symmetric encryption and asymmetric encryption are integrated application in this method, and it is realized in physical isolation Gap in the form of algorithm, the data is encrypted and protected by digital signature while transmission from security-related network to non-security-related network by this method. The experimental results showed that compared with the simplex Gap technology, the new proposed encryption and digital signature can effectively guarantee the confidentiality and integrity of data, at the same time the influence of speed of data transmission after joined the encryption and digital signature were also analyzed. Finally, this method was illustrated effective in the specific scenario.