Why PQC Encryption Technology Can Resist Quantum Computing Decryption

Why PQC Encryption Technology Can Resist Quantum Computing Decryption

ASUSTOR NAS Systems Adopt Post-Quantum Cryptography to Safeguard Data Against Future Threats

On October 17, ASUSTOR, ASUS’s Network Attached Storage (NAS) subsidiary, announced a significant security upgrade for its devices.

The company revealed that its ADM 5.1 operating system will fully integrate PQC (Post-Quantum Cryptography) technology, designed to protect encrypted files from decryption attacks using quantum computers—a threat that could materialize in the coming years.

Why PQC Encryption Technology Can Resist Quantum Computing Decryption

The Quantum Computing Threat

To understand why PQC encryption is necessary, we must first examine the challenge quantum computing poses to current encryption standards. Traditional encryption methods, such as RSA and elliptical curve cryptography, rely on mathematical problems that are extremely difficult for classical computers to solve. However, quantum computers operate on fundamentally different principles, using quantum bits (qubits) that can exist in multiple states simultaneously, potentially solving these mathematical problems exponentially faster.

Security experts have long warned about “harvest now, decrypt later” attacks, where malicious actors collect encrypted data today with the intention of decrypting it once sufficiently powerful quantum computers become available. For organizations storing sensitive information with long-term value—such as medical records, financial data, intellectual property, and government communications—this represents a serious future threat.

How PQC Technology Provides Protection

Post-Quantum Cryptography uses entirely different mathematical foundations that remain secure even against quantum computing attacks. ASUSTOR’s implementation leverages algorithms specifically designed to withstand quantum decryption attempts.

The ADM 5.1 system upgrades its connection encryption to Hybrid TLS, combining the industry-standard pairing of X25519 + ML-KEM 768 (Kyber). The Kyber algorithm has received certification from NIST (the National Institute of Standards and Technology), which has been leading the effort to standardize quantum-resistant cryptographic algorithms.

Why Hybrid Encryption Matters

The hybrid approach is particularly clever: it combines traditional encryption methods (X25519) with quantum-resistant algorithms (ML-KEM 768). This dual-layer strategy ensures security in two ways:

Immediate protection: The traditional encryption provides strong security against current threats
Future-proofing: The quantum-resistant component protects against future quantum computing attacks

This means that even if one encryption method is somehow compromised, the other layer continues protecting the data.

Mathematical Foundations of Quantum Resistance

PQC algorithms like Kyber are based on mathematical problems that quantum computers cannot efficiently solve. Specifically, ML-KEM (Module Lattice-based Key Encapsulation Mechanism) relies on lattice-based cryptography, which involves finding the shortest vector in high-dimensional mathematical lattices—a problem that remains computationally intractable even for quantum computers.

Unlike RSA encryption, which quantum computers could break using Shor’s algorithm, lattice-based problems maintain their difficulty across both classical and quantum computing paradigms. This fundamental difference is what makes PQC technology effective against quantum threats.

Practical Implementation for Users

ASUSTOR has designed the PQC integration to work seamlessly and transparently. When users access their NAS through a PQC-compatible browser, the system automatically detects the capability and establishes a quantum-resistant connection. The ADM user interface clearly displays the current encryption status, allowing users to verify their connection is protected at a glance.

This automatic detection and implementation means users benefit from enhanced security without needing technical expertise or manual configuration—the protection works in the background while maintaining ease of use.

Why This Matters Now

While large-scale quantum computers capable of breaking current encryption don’t yet exist, security experts emphasize the importance of implementing quantum-resistant encryption today. Organizations storing sensitive data need protection against both current and future threats, particularly given the “harvest now, decrypt later” risk.

ASUSTOR’s move to integrate PQC technology reflects a growing industry trend toward quantum readiness. The company joins other forward-thinking technology providers in recognizing that data security requires anticipating future capabilities, not just defending against today’s threats.

For businesses and individuals using ASUSTOR NAS devices to store backup files, confidential documents, intellectual property, medical records, financial information, and sensitive communications, this upgrade provides crucial long-term protection. The data stored today will remain secure even as quantum computing technology advances over the coming years and decades.

As quantum computing continues developing from research laboratories toward practical applications, the implementation of post-quantum cryptography represents an essential step in maintaining data security for the future. ASUSTOR’s integration of NIST-certified algorithms into consumer-accessible NAS devices makes this advanced protection available to a broader range of users who need to ensure their data remains confidential for years to come.