Analyzing the mathematical structure of XTS-AES block ciphers and designing ultra-low-latency hardware pipelines for enterprise storage.
Modern enterprise storage networks have transitioned from legacy Fibre Channel to NVMe over Fabrics (NVMe-oF) utilizing RoCE v2 and TCP. These multi-gigabit fabrics expose raw block storage traffic to datacenter network switches. DataHSM integrates inline storage encryptors that operate at the SAN controller layer, securing data in flight and at rest simultaneously.
XTS mode utilizes two independent 256-bit AES keys: one to generate an encrypted tweak value based on the logical block address (LBA), and the second to perform the actual block encryption. This ensures that identical plaintext sectors located at different disk offsets produce completely different ciphertexts, preventing frequency analysis attacks.
When enterprise storage arrays reach end-of-life, physically shredding high-density flash chips is environmentally hazardous and costly. DataHSM provides verifiable cryptographic shredding compliant with DoD 5220.22-M and NIST SP 800-88, allowing storage arrays to be securely repurposed or returned to leasing vendors immediately.