Invention Grant
- Patent Title: Method for encrypting data for distributed storage
-
Application No.: US15503723Application Date: 2014-11-24
-
Publication No.: US10404449B2Publication Date: 2019-09-03
- Inventor: Ghassan Karame
- Applicant: NEC EUROPE LTD.
- Applicant Address: JP Tokyo
- Assignee: NEC CORPORATION
- Current Assignee: NEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Leydig, Voit & Mayer, Ltd.
- International Application: PCT/EP2014/075425 WO 20141124
- International Announcement: WO2016/082857 WO 20160602
- Main IPC: H04L9/06
- IPC: H04L9/06 ; G06F17/16

Abstract:
A method for encrypting data with an encryption entity includes, in a step a), dividing a plaintext into a number of N blocks. In a step b), each of the blocks are encrypted with an encryption key resulting in a number of ciphertext blocks. In a step c), a linear All-Or-Nothing scheme is applied on the ciphertext blocks. In a step d), each of the ciphertext blocks output from step c) is transformed with a transformation procedure such that the information in different ciphertext blocks is transformed differently based on the encryption key and such that the transformation procedure is only revertable with knowledge of the encryption key. In a step e), the transformed ciphertext blocks are dispersed according to an information dispersal procedure.
Public/Granted literature
- US20180351731A1 METHOD FOR ENCRYPTING DATA FOR DISTRIBUTED STORAGE Public/Granted day:2018-12-06
Information query