Add MobiGyaan as a preferred source on GoogleWestern Digital Corporation (WDC) has announced the integration of post-quantum cryptography (PQC) into its latest Ultrastar UltraSMR enterprise hard drives, marking one of the industry’s early hardware-level deployments of quantum-resistant security technologies. The new drives are currently undergoing qualification with multiple hyperscale customers and are designed to protect long-term enterprise and AI infrastructure data against future quantum computing threats.
Preparing Storage for the Quantum Era
As artificial intelligence infrastructure continues generating massive long-term datasets, storage vendors are increasingly focusing on protecting data against emerging cryptographic risks posed by quantum computing.
Western Digital says its latest implementation uses:
- NIST-approved quantum-resistant algorithms
- Hardware-level trust protections
- Secure firmware validation systems
The move represents a shift from theoretical planning toward practical deployment of post-quantum security within enterprise storage hardware.
Why Post-Quantum Cryptography Matters
Western Digital highlights two major reasons driving the transition toward quantum-resilient storage security.
Extended enterprise hardware lifecycles
Enterprise storage systems often remain operational for:
- 5 years or longer
This creates a risk that currently deployed infrastructure could still be active once cryptographically relevant quantum computers become viable.
“Harvest Now, Decrypt Later” attacks
The company also warns about:
- HNDL (Harvest Now, Decrypt Later) attacks
In these attacks:
- Encrypted data is stolen today
- Attackers store the data
- Future quantum systems may later decrypt it
This poses a major concern for:
- AI datasets
- Enterprise archives
- Government records
- Long-term cloud storage
Ultrastar DC HC6100 UltraSMR Gets Quantum-Resistant Protection
Western Digital’s PQC implementation currently focuses on:
- Device-level trust
- Firmware integrity
- Cryptographic key management
rather than traditional data-at-rest encryption.
The system protects the device trust chain from:
- Manufacturing
- Deployment
- Field servicing
- Firmware updates
Key technologies used
ML-DSA-87 algorithm
The drives use:
- ML-DSA-87
- Based on NIST FIPS 204 standards
for high-assurance code signing and firmware verification.
Dual-signing architecture
Western Digital combines:
- PQC algorithms
- RSA-3072 cryptography
to create layered redundancy and maintain compatibility during the transition phase.
PQC-enabled infrastructure
The company has also deployed:
- PQC-capable PKI infrastructure
- Hardware Security Module (HSM) workflows
for:
- Key issuance
- Key rotation
- Lifecycle management
Rollback safeguards
The implementation includes:
- Rollback protection mechanisms
designed to ensure deployment compatibility across large-scale enterprise server environments.
Focus on AI Infrastructure Security
Western Digital says AI-focused enterprises are increasingly prioritizing:
- Infrastructure-level trust
- Long-term cryptographic resilience
- Secure firmware ecosystems
as AI systems continue expanding in scale and operational lifespan.
The company plans to expand post-quantum cryptography support across additional enterprise HDD product lines in the future.
Dr. Xiaodong (Carl) Che, Chief Technology Officer and Senior Vice President at WD, said, “As AI data compounds and becomes more valuable and long-lived, securing it for the future is no longer optional. Quantum computing represents one of the most significant technology transitions of our time, and it is advancing faster than many organizations anticipate. The security architectures that have protected enterprise storage for more than a decade will need to evolve.
Integrating post-quantum cryptography into our Ultrastar enterprise-class drives is part of our commitment to helping customers stay ahead of threats that are already present in the form of HNDL attacks. By aligning with NIST standards and CNSA 2.0 today, we are helping enterprises build a clear, low-friction path to quantum-safe storage infrastructure.”
Key Highlights
Western Digital Ultrastar PQC Features
- Post-quantum cryptography integration
- NIST-approved ML-DSA-87 algorithm
- Dual-signing with RSA-3072
- Secure firmware validation
- PQC-enabled PKI and HSM workflows
- Rollback safeguards
- Enterprise AI infrastructure focus
Availability
Western Digital says the new Ultrastar UltraSMR enterprise drives with integrated PQC security are currently under qualification with hyperscale customers, The company has not yet announced commercial pricing, public availability timeline, and capacity variants for broader markets.
