--- title: Is Your VPN Ready for the Quantum Era? – Quantum Series,... description: Quantum computers running Shor's algorithm will eventually break the math underpinning today's VPNs, HTTPS, and SSH. This introductory post in an 8-part series... canonical: https://daily.dev/posts/is-your-vpn-ready-for-the-quantum-era-quantum-series-part-1-l6up9tmev twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Is Your VPN Ready for the Quantum Era? – Quantum Series, Part 1 | daily.dev og:description: Quantum computers running Shor's algorithm will eventually break the math underpinning today's VPNs, HTTPS, and SSH. This introductory post in an 8-part series... og:url: https://daily.dev/posts/is-your-vpn-ready-for-the-quantum-era-quantum-series-part-1-l6up9tmev og:image: https://api.daily.dev/og/posts/L6UP9tMev.png og:image:alt: Is Your VPN Ready for the Quantum Era? – Quantum Series, Part 1 og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Is Your VPN Ready for the Quantum Era? – Quantum Series, Part 1 **[Cisco](https://daily.dev/sources/cisco)** · 8 min read · 0 upvotes · 0 comments ## Summary Quantum computers running Shor's algorithm will eventually break the math underpinning today's VPNs, HTTPS, and SSH. This introductory post in an 8-part series explains the two distinct threats: key exchange (urgent due to 'harvest now, decrypt later' attacks) and authentication (a slower but necessary migration). It previews a hands-on lab series using Docker, strongSwan, and OpenSSL 3.5+ to build a post-quantum VPN on a laptop, covering NIST's new PQC standards ML-KEM, ML-DSA, and SLH-DSA. No commands yet — just the conceptual foundation for everything that follows. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Quantum Cybersecurity Explained: Preparing for Quantum Computing](https://daily.dev/posts/quantum-cybersecurity-explained-preparing-for-quantum-computing-xnxg5zqkl) · The Quantum Insider · 0 upvotes · 0 comments - [Why post-quantum cryptography matters for securing campus and branch networks](https://daily.dev/posts/why-post-quantum-cryptography-matters-for-securing-campus-and-branch-networks-zjasrmlex) · Cisco · 0 upvotes · 0 comments - [Post‑Quantum Authentication: How Consumer Apps Can Stay Secure in a Quantum‑Ready World?](https://daily.dev/posts/post-quantum-authentication-how-consumer-apps-can-stay-secure-in-a-quantum-ready-world--xvcpygmkq) · Security Boulevard · 0 upvotes · 0 comments --- Tags: [#docker](https://daily.dev/tags/docker), [#quantum-computing](https://daily.dev/tags/quantum-computing), [#cryptography](https://daily.dev/tags/cryptography), [#vpn](https://daily.dev/tags/vpn) [View this post on daily.dev](https://daily.dev/posts/is-your-vpn-ready-for-the-quantum-era-quantum-series-part-1-l6up9tmev) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Is Your VPN Ready for the Quantum Era? – Quantum Series, Part 1","url":"https://daily.dev/posts/is-your-vpn-ready-for-the-quantum-era-quantum-series-part-1-l6up9tmev","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/is-your-vpn-ready-for-the-quantum-era-quantum-series-part-1-l6up9tmev"},"datePublished":"2026-07-07T16:00:47.504Z","dateModified":"2026-07-07T16:01:08.975Z","description":"Quantum computers running Shor's algorithm will eventually break the math underpinning today's VPNs, HTTPS, and SSH. 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