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Pub. No.:    WO/2018/158759    International Application No.:    PCT/IL2017/051245
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Fri Nov 17 00:59:59 CET 2017
IPC: H04L 29/06
H04L 9/00
H04L 9/32
G06F 21/00
G06F 21/60
H04L 12/46
H04L 12/24
H04W 84/18
Applicants: CYBER 2.0 (2015) LTD.
Inventors: KAPLAN HAELYON, Erez
A device, method and product for port-scrambling-based networks. The method comprising in response to a device intending to transmit an outgoing communication to a target device in a computer network, via a first port, scrambling the first port of the outgoing communication to obtain a second port by applying a transformation function which utilizes a certificate that is shared among a portion of the devices in the computer network; and transmitting the outgoing communication to via the second target port. The method comprises receiving, via a second source port, an incoming communication from a source device in the computer network, descrambling the second source port of the incoming communication to obtain a first source port by applying a reverse function of the transformation function; and directing the incoming communication at the first source port instead of the second source port.