Introduction to S25-A Scalable Asymmetry-Amplified Hybrid Quantum-Classical Protocol

Introduction to S25-A Scalable Asymmetry-Amplified Hybrid Quantum-Classical Protocol | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Introduction to S25-A Scalable Asymmetry-Amplified Hybrid Quantum-Classical Protocol Surya Vamshi R This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7220468/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract This work presents a scalable hybrid quantum-classical cryptographic protocol that leverages architectural asymmetry in quantum communication channels to resist number-splitting attacks. Developed under conservative assumptions, the protocol demonstrates improved resistance to partial key access compared to BB84-family protocols, even at minimal operational scales. A working implementation is provided as a proof of concept. Physical sciences/Mathematics and computing Physical sciences/Physics Quantum cryptography number-splitting attack BB84 asymmetry amplification post-quantum security hybrid protocols Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7220468","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":493406820,"identity":"da371a8e-f893-4539-8547-8dc7e3a3066a","order_by":0,"name":"Surya Vamshi R","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAzklEQVRIiWNgGAWjYFACHgjJDyITCkjQIiPZANJiQIIWG4MDIIoYLfwzcg8+5m2r4zE+vzrxwwMDBnl+sQP4tUjcyEs2nNnGxmN24+1mCaDDDGfOTsCvxUAix0ziYxsPUMvZDSAtCQa3CWsx/5HYJsFjPOPs5h/EajFj+NhmwGPA37uNOFskzrxLlpxxLoFH4gbvNosEAwnCfuFvzz34maeszp6//+zmmz8qbOT5pQloAQNGNpB9YJUSRCgHgz8g+w4Qq3oUjIJRMApGGgAAQbQ/n52HHd8AAAAASUVORK5CYII=","orcid":"","institution":"","correspondingAuthor":true,"prefix":"","firstName":"Surya","middleName":"Vamshi","lastName":"R","suffix":""}],"badges":[],"createdAt":"2025-07-26 10:23:10","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7220468/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7220468/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":88247303,"identity":"32f957ed-5eb4-41a5-925d-5d84927785e1","added_by":"auto","created_at":"2025-08-04 12:47:03","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":596614,"visible":true,"origin":"","legend":"","description":"","filename":"S25quantumprotocoldraft2.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7220468/v1_covered_9f98902e-995c-4770-b724-9c8f98debb59.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Introduction to S25-A Scalable Asymmetry-Amplified Hybrid Quantum-Classical Protocol","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Quantum cryptography, number-splitting attack, BB84, asymmetry amplification, post-quantum security, hybrid protocols","lastPublishedDoi":"10.21203/rs.3.rs-7220468/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7220468/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"This work presents a scalable hybrid quantum-classical cryptographic protocol that leverages architectural asymmetry in quantum communication channels to resist number-splitting attacks. 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