[{"data":1,"prerenderedAt":131},["ShallowReactive",2],{"page:\u002Fblog\u002Fpost-quantum-encryption":3},{"id":4,"title":5,"author":6,"body":7,"category":113,"date":114,"description":115,"draft":116,"extension":117,"image":118,"meta":119,"navigation":120,"path":121,"readingTime":122,"seo":123,"stem":124,"tags":125,"updatedAt":129,"__hash__":130},"posts\u002Fblog\u002Fpost-quantum-encryption.md","Post-Quantum Encryption: Why the Migration Starts Before Quantum Computers Arrive","Pixeld Tech Editorial",{"type":8,"value":9,"toc":104},"minimark",[10,14,19,29,32,35,39,48,51,55,64,67,70,74,77,80,84,87,90,98],[11,12,13],"p",{},"A cryptographic migration is a systems project. Software, certificates, libraries, devices, and external services need to change in a coordinated way, so preparation starts well before every deployment can switch algorithms.",[15,16,18],"h2",{"id":17},"the-threat-concerns-particular-mathematics","The threat concerns particular mathematics",[11,20,21,28],{},[22,23,27],"a",{"href":24,"rel":25},"https:\u002F\u002Fwww.nist.gov\u002Fcybersecurity-and-privacy\u002Fwhat-post-quantum-cryptography",[26],"nofollow","NIST's introduction to post-quantum cryptography"," explains why sufficiently capable quantum computers would threaten widely used public-key systems.",[11,30,31],{},"Post-quantum cryptography aims to provide algorithms resistant to such attacks while running on conventional computers. It is not the same thing as communicating through a quantum network.",[11,33,34],{},"The issue also includes long-lived information: encrypted material captured now could remain valuable if an attacker can decrypt it in the future.",[15,36,38],{"id":37},"standards-are-a-foundation-for-implementation","Standards are a foundation for implementation",[11,40,41,42,47],{},"NIST published its first three finalized post-quantum standards in 2024. Its ",[22,43,46],{"href":44,"rel":45},"https:\u002F\u002Fcsrc.nist.gov\u002FProjects\u002FPost-Quantum-Cryptography",[26],"post-quantum project page"," distinguishes key-establishment and digital-signature standards.",[11,49,50],{},"That distinction matters because encryption-related key establishment and signing are different jobs. A migration plan needs to identify where each is used rather than treating cryptography as a single switch.",[15,52,54],{"id":53},"inventory-before-replacement","Inventory before replacement",[11,56,57,58,63],{},"The ",[22,59,62],{"href":60,"rel":61},"https:\u002F\u002Fwww.nccoe.nist.gov\u002Fapplied-cryptography\u002Fmigration-to-pqc",[26],"NCCoE migration project"," emphasises discovering quantum-vulnerable public-key uses and planning the transition.",[11,65,66],{},"Our suggested first worksheet has fields for the system, cryptographic function, responsible team, library or service provider, data lifetime, and available upgrade path.",[11,68,69],{},"For a hypothetical web service, this could uncover separate dependencies in TLS termination, identity tokens, software signing, and a third-party integration. Knowing who controls each one is more actionable than adding “quantum safe” to a roadmap.",[15,71,73],{"id":72},"test-the-entire-relationship","Test the entire relationship",[11,75,76],{},"An algorithm choice becomes a deployment only when the surrounding systems interoperate. Our proposed test plan includes client compatibility, failure handling, performance measurements, and a documented rollback path.",[11,78,79],{},"For example, do not measure only one successful request from a current browser. Include the clients and services actually supported by the product. A migration that silently excludes an important integration has not met its operational goal.",[15,81,83],{"id":82},"preserve-precise-claims","Preserve precise claims",[11,85,86],{},"Avoid promising that a product is protected merely because one dependency added a new algorithm. Describe the protocol, component, version, and configuration that were verified.",[11,88,89],{},"The practical first step is therefore a readable inventory and an owned migration plan. Standards make implementation possible; careful engineering makes the resulting system usable.",[11,91,92,93,97],{},"For related account-security context, see ",[22,94,96],{"href":95},"\u002Fblog\u002Fpasskeys-change-login","Passkeys Change Login",".",[11,99,100],{},[101,102,103],"em",{},"Cover: original AI-generated conceptual illustration.",{"title":105,"searchDepth":106,"depth":106,"links":107},"",2,[108,109,110,111,112],{"id":17,"depth":106,"text":18},{"id":37,"depth":106,"text":38},{"id":53,"depth":106,"text":54},{"id":72,"depth":106,"text":73},{"id":82,"depth":106,"text":83},"Internet","2026-10-08","Understand post-quantum cryptography, the risk to long-lived data, and why an inventory of cryptographic dependencies comes first.",false,"md","\u002Fimages\u002Fnews\u002Fpost-quantum-encryption-20261008.webp",{},true,"\u002Fblog\u002Fpost-quantum-encryption","2",{"title":5,"description":115},"blog\u002Fpost-quantum-encryption",[126,127,128],"security","cryptography","quantum",null,"l5KshS4NAvdG0OTvSeSv2iS7k3tv8W3Sc6OuNkwBkQc",1791439052163]