Secure Data Parser Method and System

摘要

A secure data parser is provided that may be integrated into any suitable system for securely storing data. The secure data parser parses data and then splits the data into multiple portions that are stored distinctly. In particular, a programmed computer system is used to secure a data set by creating integrity information using the data set; encrypting the data set based on an encryption key to produce an encrypted data set; generating data splitting information which is usable to determine into which of a plurality of shares of data a unit of data of the encrypted data set will be placed; separating the encrypted data set into the plurality of shares based on the data splitting information; including in the plurality of shares data indicative of (a) the encryption key and (b) the integrity information; and causing the plurality of shares to be stored in respective separate storage locations. The data set is restorable by accessing less than all, but at least a threshold number of, the plurality of shares. Data to be parsed Encrypt Generate RC4 Session session 10 Encryption key to be master key wt session secured Access Split data Access Split Session session according to Parser key according master session 'key Master to Parser key key Master key Parse dat ey Encrypted ession data key Encrypted Session share 3 share 3 data key share share 1 data key share n share n share 2 share 2 Generate Generate Generate Generate share 1 key share 2 key share 3 key share n key Encrvpt Pieces Encrypt share Encrypt share Encrypt share Encrypt share 1 data with 2 data with 3 data with n data with share share share share 1key 2key 3key n key Encrypted Key n Encrypted Key 2 share 1 (data share 3 (data session key) session key) Obfuscate Encrypted Key 1 Encrypted share share 2 (data / n (data / session/ session key) key)