{"id":43003,"date":"2026-07-09T08:26:28","date_gmt":"2026-07-09T08:26:28","guid":{"rendered":"https:\/\/direc.dk\/post-quantum-cryptography-securing-communication-in-the-quantum-era-2\/"},"modified":"2026-08-12T07:48:03","modified_gmt":"2026-08-12T07:48:03","slug":"post-quantum-cryptography-securing-communication-in-the-quantum-era-2","status":"publish","type":"post","link":"https:\/\/direc.dk\/da\/post-quantum-cryptography-securing-communication-in-the-quantum-era-2\/","title":{"rendered":"Post-quantum cryptography: Securing communication in the quantum era"},"content":{"rendered":"\t\t
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Quantum computing talks<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Post-quantum cryptography: securing communication in the quantum era<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Freja Elbro<\/p>\n

Security Architect, The Alexandra Institute<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Overview<\/h3>\n

How can we secure our digital communication in a future with quantum computers? In this talk, Freja Elbro introduces the foundations of post-quantum cryptography and explains how researchers are developing cryptographic systems designed to withstand quantum attacks. By exploring modern key exchange mechanisms and the open challenges that remain, the lecture provides a technical entry point into one of the most important security challenges in the quantum era.\u00a0<\/strong>\u00a0<\/p>\n

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Abstract<\/h3>\n
This lecture provides a technical introduction to post-quantum cryptography and compares four leading key exchange mechanisms: ML-KEM, HQC, Classic McEliece and FrodoKEM. It explores their security assumptions, performance trade-offs and the open research challenges involved in building cryptographic systems that remain secure against future quantum attacks.\u00a0<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Bio\u00a0<\/strong><\/h3>\n
Freja Elbro is a security architect at the Alexandra Institute, where she works with quantum-safe cryptography and security analysis. She holds a PhD from DTU in post-quantum cryptography. In her PhD, she worked on attacking cryptographic schemes built on hard problems from error-correcting codes.\u00a0<\/div>\n
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Resources<\/h3>\n
For a short overview of cryptography, the quantum threat and different approaches to post quantum cryptography, see for example:<\/div>\n
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