en.Wedoany.com Reported - Israel-based DWDM and OTN optical transport network equipment provider PacketLight Networks officially announced on May 19 that it has entered into a strategic technology partnership with U.S. post-quantum cybersecurity firm Quantum XChange. The collaboration will integrate post-quantum cryptography (PQC) capabilities into its optical transport hardware portfolio, providing telecom operators, financial institutions, governments, and critical infrastructure sectors with flexibly configurable quantum-safe network solutions.
The core of this partnership lies in addressing the long-term security threats posed by quantum computing, particularly the "harvest now, decrypt later" attack strategy—where attackers intercept and store current encrypted data traffic, waiting until quantum computers possess sufficient computational power to decrypt it. By introducing NIST-standardized post-quantum cryptographic algorithms onto PacketLight's DWDM and OTN platforms, users can deploy standalone PQC encryption, physics-based QKD encryption, or combine both into a hybrid key exchange architecture on existing optical networks, building a layered defense system on demand.
The two parties have directly interfaced Quantum XChange's Phio TX cryptographic management platform with PacketLight's DWDM/OTN transponders and muxponder units. Phio TX, serving as an out-of-band key delivery engine, employs an architecture validated under FIPS 140-3 and FIPS 203, separating key generation from the primary optical data plane transmission. It utilizes a symmetric key mesh configuration to neutralize threats from "harvest now, decrypt later" interception strategies. The integrated optical layer pairs high-speed hardware AES-256-GCM encryption with a quantum-resistant key relay mechanism, enabling key delivery over metro aggregation fiber or unamplified long-haul links without introducing additional latency, compromising deterministic signal throughput, or requiring large-scale modifications to physical network components.
This solution focuses on the long-term protection of data sovereignty in high-security communication domains, covering international financial systems, sovereign communication backbones, and critical public utility infrastructure. The platform supports the ETSI GS QKD 014 standardized key delivery interface, allowing commercial enterprises to initially enable software-based PQC algorithms on standard classical fiber links and gradually introduce physical QKD devices as hardware standards mature, forming a progressive, iterative full post-quantum readiness migration path. This vendor-neutral framework ensures enterprises meet emerging global data security regulatory requirements without causing service disruptions or incurring costly hardware replacements.
PacketLight Networks CEO Koby Reshef stated that the company has long focused on secure optical transport, having previously deployed Layer-1 optical network encryption and QKD quantum key security technologies. Partnering with Quantum XChange to incorporate post-quantum cryptography PQC technology further enriches the capabilities of its entire DWDM and OTN product line, giving customers greater autonomy and flexibility when building quantum-resistant security architectures. Quantum XChange Vice President of Business Development Fabien Adouani noted that industries across the board urgently need mature, deployable, and easily scalable quantum-resistant security transformation solutions. Customers can deploy PQC systems first and subsequently add QKD capabilities, or deploy both technologies in parallel, calmly adapting to the continuous evolution of technical standards and cyber threats.
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