Quantum computers threaten VPN security by breaking asymmetric encryption used in IKEv2 key exchanges, enabling future decryption of intercepted data. LANCOM addresses this with Post-Quantum Pre-shared Keys (PQ-PSKs), adding a quantum-resistant layer to existing methods without replacing them. PQ-PSKs use lattice-, code-, or multivariable-based algorithms, physically distributed keys, and hybrid cryptography to ensure resistance against “store now, decrypt later” attacks. Easily integrated via firmware updates, PQ-PSKs provide long-term protection for corporate, critical infrastructure, healthcare, finance, and government networks, preparing VPNs for the post-quantum era.

Join for free to read