Patent ID: 9489533
Filing Date: 2016-11-08
CPC Classification: G06F,H04L

Claim Text:
1. A data deduplication method for execution by a computing device, wherein the method comprises: receiving a storage request regarding storing a data object in dispersed storage network (DSN) memory; determining a data portion of the data object; determining that a substantially identical data portion is stored in the DSN memory; obtaining an encryption pattern sequence for the substantially identical data portion; retrieving an encryption key of the substantially identical data portion from the DSN memory, wherein, based on the encryption pattern sequence, a first portion of the encryption key is identical to a first portion of the substantially identical data portion and a second portion of the encryption key is identical to an inverted second portion of the substantially identical data portion; encrypting the data portion using the encryption key and the encryption pattern sequence to produce an encrypted data portion that includes a plurality of encrypted data segments; compressing the encrypted data portion using a pattern based data compression function to produce a compressed data portion; and facilitating storage of the compressed data portion and the encryption pattern sequence in response to the storage request.