SYSTEM AND METHOD FOR NETBACKUP DATA DECRYPTION IN HIGH-LATENCY AND LOW-BANDWIDTH ENVIRONMENT

摘要

PROBLEM TO BE SOLVED: To provide a system and a method for NETBACKUP data decryption in high-latency and low-bandwidth environment.SOLUTION: A backup server 150 and client computers 110a-c are connected to one another through a first network 180, and the backup server 150 is connected to a remote data storage area through another network such as Internet 190. The backup server 150 encrypts received data for backup from the client computers 110a-c. Sizes of an encryption segment and an encryption partial segment can be selected, a last protected partial segment having the same size as that of the encryption partial segment is decrypted first by selected encryption algorithm, and a given protected partial segment having the size of the encryption partial segment is decrypted.