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1. (WO2018220138) PROGRESSIVE KEY ENCRYPTION ALGORITHM

Pub. No.:    WO/2018/220138    International Application No.:    PCT/EP2018/064373
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri Jun 01 01:59:59 CEST 2018
IPC: H04L 9/06
H04L 9/32
Applicants: ZWIPE AS
Inventors: DREIFUS, Henry Nardus
Title: PROGRESSIVE KEY ENCRYPTION ALGORITHM
Abstract:
A method is described for encrypting data that provides increase resistance to brute force attacks by parallel computing means, such as by a quantum computer. To encrypt the data, it is separated into a plurality of data segments, and each of the data segments is encrypted using a different encryption key. The encrypted data segments are then arranged as an encrypted data file in a manner that impedes parallel attack of the encrypted data segments. For example, the lengths of the encrypted data segments may be non-uniform and/or the spacing of the encrypted data segments within the encrypted data file may be non-uniform. Each encrypted segment may contain a pointer to the next segment, thus permitting an authorised recipient to sequentially decrypt the data file without prior knowledge of the lengths and/or spacings of the encrypted data segments.