{"paper_id":"4c22ece9-eccf-46ff-9b89-a3c62c6c63a8","body_text":"Unveiling the Enigma of CHACHA20: A Symphony of Secure Audio Data Processing | 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 Unveiling the Enigma of CHACHA20: A Symphony of Secure Audio Data Processing L Rajesh, M U Rohith, K Divyavarshini, N Thekshitha This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8293185/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 16 You are reading this latest preprint version Abstract Securing real-time audio communication is crucial among encryption techniques, especially as advanced networking technologies like 5G become growing in popularity. Although very secure, traditional encryption techniques like Advanced Encryption Standard (AES) have a high computational complexity and latency, which makes them inappropriate for applications that require immediate access. This paper focuses on the ChaCha20 encryption algorithm, which is a lightweight and efficient stream cipher that offers both strong security and high performance. Unlike block ciphers, ChaCha20 uses simple XOR operations and efficient keystream generation to ensure low latency and high throughput, which are critical for real-time audio encryption. In this paper ChaCha20 key generation, encryption, and decryption of audio data is implemented and its performance is analysed and compared with RSA, AES algorithms. Physical sciences/Engineering Physical sciences/Mathematics and computing Chacha20 AES RSA Encryption Security Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 22 Dec, 2025 Reviewers agreed at journal 21 Dec, 2025 Reviewers agreed at journal 20 Dec, 2025 Reviews received at journal 20 Dec, 2025 Reviewers agreed at journal 19 Dec, 2025 Reviewers agreed at journal 19 Dec, 2025 Reviews received at journal 19 Dec, 2025 Reviewers agreed at journal 19 Dec, 2025 Reviewers agreed at journal 19 Dec, 2025 Reviewers agreed at journal 19 Dec, 2025 Reviewers agreed at journal 19 Dec, 2025 Reviewers invited by journal 19 Dec, 2025 Editor assigned by journal 19 Dec, 2025 Editor invited by journal 15 Dec, 2025 Submission checks completed at journal 11 Dec, 2025 First submitted to journal 11 Dec, 2025 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. 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Although very secure, traditional encryption techniques like Advanced Encryption Standard (AES) have a high computational complexity and latency, which makes them inappropriate for applications that require immediate access. This paper focuses on the ChaCha20 encryption algorithm, which is a lightweight and efficient stream cipher that offers both strong security and high performance. Unlike block ciphers, ChaCha20 uses simple XOR operations and efficient keystream generation to ensure low latency and high throughput, which are critical for real-time audio encryption. In this paper ChaCha20 key generation, encryption, and decryption of audio data is implemented and its performance is analysed and compared with RSA, AES algorithms.\\u003c/p\\u003e\",\"manuscriptTitle\":\"Unveiling the Enigma of CHACHA20: A Symphony of Secure Audio Data Processing\",\"msid\":\"\",\"msnumber\":\"\",\"nonDraftVersions\":[{\"code\":1,\"date\":\"2025-12-22 03:41:08\",\"doi\":\"10.21203/rs.3.rs-8293185/v1\",\"editorialEvents\":[{\"type\":\"communityComments\",\"content\":0},{\"type\":\"decision\",\"content\":\"Revision requested\",\"date\":\"2025-12-22T14:55:47+00:00\",\"index\":\"\",\"fulltext\":\"\"},{\"type\":\"reviewerAgreed\",\"content\":\"247947786270253509386818739156809193083\",\"date\":\"2025-12-21T15:16:10+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"reviewerAgreed\",\"content\":\"323988021650501449917586394602026294807\",\"date\":\"2025-12-20T09:50:11+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"editorInvitedReview\",\"content\":\"\",\"date\":\"2025-12-20T08:39:05+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"reviewerAgreed\",\"content\":\"205298804043309741641019903248986703345\",\"date\":\"2025-12-20T04:50:58+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"reviewerAgreed\",\"content\":\"265047341929675444033918307567426049033\",\"date\":\"2025-12-20T04:14:09+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"editorInvitedReview\",\"content\":\"\",\"date\":\"2025-12-19T18:33:28+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"reviewerAgreed\",\"content\":\"193700811191815058887334225525739809809\",\"date\":\"2025-12-19T17:51:49+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"reviewerAgreed\",\"content\":\"281862907222667211174208625565153544358\",\"date\":\"2025-12-19T17:39:45+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"reviewerAgreed\",\"content\":\"29067005763111750032720465783391296547\",\"date\":\"2025-12-19T15:24:28+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"reviewerAgreed\",\"content\":\"134190741697197695612475925542220921722\",\"date\":\"2025-12-19T15:16:36+00:00\",\"index\":\"hide\",\"fulltext\":\"\"},{\"type\":\"reviewersInvited\",\"content\":\"\",\"date\":\"2025-12-19T15:09:09+00:00\",\"index\":\"\",\"fulltext\":\"\"},{\"type\":\"editorAssigned\",\"content\":\"\",\"date\":\"2025-12-19T15:03:48+00:00\",\"index\":\"\",\"fulltext\":\"\"},{\"type\":\"editorInvited\",\"content\":\"\",\"date\":\"2025-12-15T05:13:47+00:00\",\"index\":\"\",\"fulltext\":\"\"},{\"type\":\"checksComplete\",\"content\":\"\",\"date\":\"2025-12-11T07:30:33+00:00\",\"index\":\"\",\"fulltext\":\"\"},{\"type\":\"submitted\",\"content\":\"Scientific Reports\",\"date\":\"2025-12-11T07:22:30+00:00\",\"index\":\"\",\"fulltext\":\"\"}],\"status\":\"published\",\"journal\":{\"display\":true,\"email\":\"info@researchsquare.com\",\"identity\":\"scientific-reports\",\"isNatureJournal\":false,\"hasQc\":true,\"allowDirectSubmit\":false,\"externalIdentity\":\"scirep\",\"sideBox\":\"Learn more about [Scientific Reports](http://www.nature.com/srep/)\",\"snPcode\":\"\",\"submissionUrl\":\"\",\"title\":\"Scientific Reports\",\"twitterHandle\":\"\",\"acdcEnabled\":true,\"dfaEnabled\":true,\"editorialSystem\":\"stoa\",\"reportingPortfolio\":\"Scientific Reports\",\"inReviewEnabled\":true,\"inReviewRevisionsEnabled\":true}}],\"origin\":\"\",\"ownerIdentity\":\"cf0393b2-9f64-4d0a-8f1f-39df42ca2be9\",\"owner\":[],\"postedDate\":\"December 22nd, 2025\",\"published\":true,\"recentEditorialEvents\":[],\"rejectedJournal\":[],\"revision\":\"\",\"amendment\":\"\",\"status\":\"under-review\",\"subjectAreas\":[{\"id\":60034725,\"name\":\"Physical sciences/Engineering\"},{\"id\":60034726,\"name\":\"Physical sciences/Mathematics and computing\"}],\"tags\":[],\"updatedAt\":\"2026-05-05T11:08:30+00:00\",\"versionOfRecord\":[],\"versionCreatedAt\":\"2025-12-22 03:41:08\",\"video\":\"\",\"vorDoi\":\"\",\"vorDoiUrl\":\"\",\"workflowStages\":[]},\"version\":\"v1\",\"identity\":\"rs-8293185\",\"journalConfig\":\"researchsquare\"},\"__N_SSP\":true},\"page\":\"/article/[identity]/[[...version]]\",\"query\":{\"redirect\":\"/article/rs-8293185\",\"identity\":\"rs-8293185\",\"version\":[\"v1\"]},\"buildId\":\"8U1c8b4HqxoKbykW_rLl7\",\"isFallback\":false,\"isExperimentalCompile\":false,\"dynamicIds\":[84888],\"gssp\":true,\"scriptLoader\":[]}","source_license":"CC-BY-4.0","license_restricted":false}