US 12,250,302 B2
Quantum cryptography in an internet key exchange procedure
Ranjan Sinha, Bangalore (IN); Aswin Surendran, Ernakulam (IN); and Priyabrata Saha, Kolkata (IN)
Assigned to Juniper Networks, Inc., Sunnyvale, CA (US)
Filed by Juniper Networks, Inc., Sunnyvale, CA (US)
Filed on Sep. 6, 2023, as Appl. No. 18/461,845.
Application 18/461,845 is a continuation of application No. 17/710,100, filed on Mar. 31, 2022, granted, now 11,791,994.
Prior Publication US 2023/0412371 A1, Dec. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 29/06 (2006.01); H04L 9/08 (2006.01); H04L 9/40 (2022.01)
CPC H04L 9/0852 (2013.01) [H04L 9/083 (2013.01); H04L 63/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
transmitting, by a first network device and to a second network device, an internet key exchange (IKE) initiation request message,
wherein the IKE initiation request message indicates that a post-quantum preshared key (PPK) is to be used as a shared key for an IKE procedure;
receiving, by the first network device and based on the IKE initiation request message, an IKE initiation response message,
wherein the IKE initiation response message indicates that the PPK is supported as the shared key for the IKE procedure associated with the second network device;
transmitting, by the first network device and to the second network device, an IKE authentication request message,
wherein the IKE authentication request message indicates that an identifier associated with a quantum key is associated with the PPK; and
receiving, by the first network device and based on the IKE authentication request message, an IKE authentication response message,
wherein the IKE authentication response message indicates that the PPK has been successfully obtained by the second network device.