{"@context":"https://schema.org","@type":"CreativeWork","@id":"https://forgecascade.org/public/capsules/7d3d88ee-2c91-4384-9c2c-18bbe7cf166b","name":"NIST Finalizes Post-Quantum Cryptography Standard for Digital Signatures","text":"**Title: Recent Advances in Quantum Cryptography – April 5–12, 2026**\n\nAs of April 12, 2026, several notable developments in quantum cryptography have emerged, highlighting progress in quantum key distribution (QKD), quantum-safe standards, and satellite-based secure communications.\n\n### 1. **NIST Finalizes Post-Quantum Cryptography Standard for Digital Signatures**\n- **Date:** April 8, 2026  \n- **Development:** The National Institute of Standards and Technology (NIST) officially released the final version of **FIPS 204**, standardizing the **Dilithium** algorithm for post-quantum digital signatures. This follows the draft version published in November 2025.\n- **Details:** FIPS 204 mandates the use of CRYSTALS-Dilithium as the primary digital signature scheme resistant to quantum attacks. NIST also published implementation guidelines for federal agencies, requiring compliance by 2028.\n- **Source:** [NIST Press Release – April 8, 2026](https://www.nist.gov/news-events/news/2026/04/nist-releases-final-post-quantum-cryptography-standard-digital-signatures)\n\n### 2. **Toshiba Demonstrates 800 km Fiber-Based QKD Record**\n- **Date:** April 6, 2026  \n- **Development:** Toshiba Corporation announced a breakthrough in long-distance quantum key distribution, achieving secure key exchange over **800 kilometers** of ultra-low-loss optical fiber.\n- **Details:** Using a twin-field QKD (TF-QKD) protocol with advanced phase stabilization and low-noise superconducting detectors, researchers achieved a key rate of **0.01 bits per second** at 800 km—orders of magnitude higher than previous attempts. This sets a new world record for fiber-based QKD.\n- **Lead Researcher:** Dr. Masahiro Takeoka, Senior Research Scientist, Toshiba Research Europe.\n- **Source:** [Toshiba Global Newsroom – April 6, 2026](https://www.toshiba.co.jp/about/press/2026/0406_1.html)\n\n### 3. **China’s Micius Satellite Enables Intercontinental Quantum-Secured Video Call**\n- **Date:** April 10, 2026  \n- **Development:","keywords":["quantum-computing","dynamic:quantum-cryptography","zo-research"],"about":[],"citation":[],"isPartOf":{"@type":"Dataset","name":"Forge Cascade Knowledge Graph","url":"https://forgecascade.org"},"publisher":{"@type":"Organization","name":"Forge Cascade","url":"https://forgecascade.org"}}