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<p>The integration of quantum key distribution (QKD) into data centers represents a promising advance in secure communications. As cyber threats evolve and the volume of sensitive information grows, strengthening intra-data center security has become a strategic necessity for ensuring confidentiality and operational resilience. This paper explores the application of an entanglement-based QKD method for securing intra-connectivity within data centers, focusing on deploying the BBM92 protocol in a controlled environment. We detail the system architecture, technical requirements, and operational considerations, and we report simulation results from a 100-block BBM92 run: an average sifted key of 1224 bits per block, with 25% used for QBER estimation, reconciliation disclosures of 352 bits, and privacy amplification removing an additional 13 bits, yielding a final secure key of 554 bits per block at an average rate of 52 bps. Across the run, 86 keys were delivered to applications, enabling 43 IKEv2/IPsec sessions, with an initial ramp-up before reaching steady, near-linear key service. These findings indicate that entanglement-based QKD can provide robust, quantum-safe key distribution for data center environments while highlighting practical integration challenges and performance trade-offs.</p>

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Design and simulation of secure data center intra-connectivity using entangled quantum key distribution

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月12日

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  • Miralem Mehic,
  • Peppino Fazio,
  • Stefan Rass,
  • Sergej Jakovlev,
  • Miroslav Voznak

摘要

The integration of quantum key distribution (QKD) into data centers represents a promising advance in secure communications. As cyber threats evolve and the volume of sensitive information grows, strengthening intra-data center security has become a strategic necessity for ensuring confidentiality and operational resilience. This paper explores the application of an entanglement-based QKD method for securing intra-connectivity within data centers, focusing on deploying the BBM92 protocol in a controlled environment. We detail the system architecture, technical requirements, and operational considerations, and we report simulation results from a 100-block BBM92 run: an average sifted key of 1224 bits per block, with 25% used for QBER estimation, reconciliation disclosures of 352 bits, and privacy amplification removing an additional 13 bits, yielding a final secure key of 554 bits per block at an average rate of 52 bps. Across the run, 86 keys were delivered to applications, enabling 43 IKEv2/IPsec sessions, with an initial ramp-up before reaching steady, near-linear key service. These findings indicate that entanglement-based QKD can provide robust, quantum-safe key distribution for data center environments while highlighting practical integration challenges and performance trade-offs.