# Secure Cloud Storage With Post-Quantum Encryption | DragBin # Keep Your Private Files Safe With Secure Cloud Storage Protect your precious memories and confidential data with our private cloud storage that uses [post quantum encryption](/post-quantum-encryption/). [Get 25GB Free](https://app.dragbin.com/signup)[Read Security Whitepaper](/whitepaper.pdf) ## Your Private Files Belong To You, Not Advertisers DragBin's encrypted cloud storage ensures that your files are yours and yours alone. With metadata protection in place, there is neither any surveillance nor any sort of ad targeting. Nobody (not even DragBin) can see your files, filenames, passwords or folders. You get a genuine cloud storage backup and your data remains safe, without being monetized to big tech. Share - Track - Control ### Private Cloud Storage Store images, videos, documents, text, audio and other files in DragBin's quantum resistant cloud storage platform that offers 25GB of [free cloud storage](/free-cloud-storage/). Active sessionmarketing_4k_cut.movUnlimited upload sizeUncapped SizeUnlimited BandwidthUnmetered data transferNo speed capsUnlimited SharingNo download count limitsUncapped views ### No Artificial Limitations With DragBin, you get unlimited sharing, unlimited bandwidth and unlimited file size uploads in your dedicated plan. We do not impose artificial caps or force promote paid plans. Zero-Knowledge VaultYour KeyClientAES-256No KeysServer ### Zero Knowledge Security You are in control of your data and with our [zero knowledge](/zero-knowledge-encryption/) security architecture, nobody can breach your data or track your behaviour. [Try DragBin For Files ](https://app.dragbin.com/signup) ## Back Up Your Memories With Full Control As one of the best cloud storage backup solutions out there, you can easily store, share and manage your files. With complete sync across devices and version history, you can access your files from anywhere. Moreover, our integrated global CDN ensures lightning fast downloads and uploads. ### Versatile Cloud Storage Manage all your files in one place with DragBin, a versatile open source cloud storage that offers complete tools for creators and businesses as well. ### Local & Private AI Utilize private AI on your system that runs locally and enhances organisation and productivity. Your files remain private and no data is fed into corporate establishments or used as training models. ### Advanced File Sharing Share and track every view, engagement and download with DragBin's advanced file sharing system. Send password protected files, expiring links, set view and download limits, geo-restrictions, one time watch, etc. ### Easy Migration Path Seamlessly link your Google Drive, OneDrive, DropBox and other accounts to DragBin's secure cloud storage for easy sync and management. ## Secure Workspace for Creators and Enterprises DragBin brings together secure cloud storage, advanced sharing, and workflow tools in one platform built for privacy-first teams and individuals. - Post-quantum encryption keeps your files safe from current and future threats - Zero knowledge architecture ensures nobody but you can access your data - Integrated workspace tools replace multiple apps and simplify collaboration [Explore DragBin for Creators](/creators/)[Explore DragBin for Business](/business/) #### Dragbin: Architecture and Implementation of an End-to-End Post-Quantum Encrypted Cloud Storage Platform mohit@dragbin.com August 28, 2025 Contents I The Imperative for Post-Quantum Security 1 The End of an Era for Classical Cryptography3 2 The "Harvest Now, Decrypt Later" Threat Vector4 II The Mathematical Foundations of Dragbin's Security 3 The NIST Mandate and the Rise of ML-KEM5 4 An In-Depth Analysis of Module-Lattice Cryptography5 4.1 The Hardness of the MLWE Problem5 4.2 Mathematical Preliminaries: Polynomial Ring Rq6 4.3 The Number-Theoretic Transform (NTT)6 5 Algorithmic Deep Dive into ML-KEM (FIPS 203)7 6 The Security Proof of Key Encapsulation9 6.1 Security Reduction: ML-KEM to MLWE Hardness9 6.2 IND-CCA2 Security: Fujisaki-Okamoto Transform10 III The Dragbin Architecture: Security by Design 7 The Zero-Trust, End-to-End Encrypted Framework10 8 A Step-by-Step Workflow Analysis11 9 Multi-Layered Defense Against Modern Threats12 9.1 Fortifying the Client: Argon2id & Non-Extractable Keys12 9.2 Authenticating Identity: Integrated PKI12 #### Dragbin: Architecture and Implementation of an End-to-End Post-Quantum Encrypted Cloud Storage Platform mohit@dragbin.com August 28, 2025 Contents I The Imperative for Post-Quantum Security 1 The End of an Era for Classical Cryptography3 2 The "Harvest Now, Decrypt Later" Threat Vector4 II The Mathematical Foundations of Dragbin's Security 3 The NIST Mandate and the Rise of ML-KEM5 4 An In-Depth Analysis of Module-Lattice Cryptography5 4.1 The Hardness of the MLWE Problem5 4.2 Mathematical Preliminaries: Polynomial Ring Rq6 4.3 The Number-Theoretic Transform (NTT)6 5 Algorithmic Deep Dive into ML-KEM (FIPS 203)7 6 The Security Proof of Key Encapsulation9 6.1 Security Reduction: ML-KEM to MLWE Hardness9 6.2 IND-CCA2 Security: Fujisaki-Okamoto Transform10 III The Dragbin Architecture: Security by Design 7 The Zero-Trust, End-to-End Encrypted Framework10 8 A Step-by-Step Workflow Analysis11 9 Multi-Layered Defense Against Modern Threats12 9.1 Fortifying the Client: Argon2id & Non-Extractable Keys12 9.2 Authenticating Identity: Integrated PKI12 [Read the Whitepaper ### Dragbin Whitepaper v1.0 Full technical overview & encryption model MLKEM + AES (256)Tap to openEncrypted](/whitepaper/) ## Secure cloud storage that only you can access [End-to-end encryption](/e2ee-encryption/) is not enough and with quantum computers likely coming by 2029, the [Harvest Now, Decrypt Later](/harvest-now-decrypt-later/) threat is more real than ever. DragBin uses [client side](/client-side-encryption/), post quantum encryption (ML-KEM + AES-256) to combat such threats. This ensures that your data is secure today, tomorrow and always in the future. [Explore DragBin Security ](/security/) ## True Privacy with No Surveillance DragBin's secure file storage platform is built for those who value true privacy while seeking fast and reliable cloud storage. Even if there is a server breach, your data will always remain protected due to the encryption keys being saved on your device and not the server. - No behaviour tracking - No surveillance or ads - No data monetization [Secure Your Files Forever ](https://app.dragbin.com/signup) ## Built For Everyone with Complete Workflow Tools We offer private cloud storage solutions for everyone alongside a consolidated workspace to boost workflows. Instead of juggling ten applications, you can use DragBin and choose a plan that suits the purpose. Our encrypted cloud storage is built for individuals, creators and growing teams. ### Personal 500 GB Perfect for personal use $3/month- 500 GB encrypted storage - Unlimited bandwidth - Unlimited uploads - Client side encryption - File sharing - Mobile & desktop apps [Get Started](https://app.dragbin.com/signup) ### Professional 2 TB Great for professionals $10/month- Everything in Personal - 2 TB encrypted storage - Advanced sharing controls - Priority support - Version history [Get Started](https://app.dragbin.com/signup) ### Creator 5 TB For content creators $50/month- Everything in Professional - 5 TB encrypted storage - $5 per additional TB - Sharing analytics - Custom branding & domains - Virtual data rooms - Post-quantum encrypted e-signatures [Get Started](https://app.dragbin.com/signup) ### Business 5 TB For growing teams $200/month No seat-based pricing -- one subscription covers your whole organization. - Everything in Creator - 5 TB encrypted storage - $15 per additional TB - Workspaces - Tiered admin management - Up to 2000 users - Single sign-on (SSO) [Get Started](https://app.dragbin.com/signup) All plans include our core security features: end-to-end encryption, zero-knowledge architecture, and quantum-resistant algorithms. ## Secure Cloud Storage That Respects Your Privacy Protect your files, photos, and backups with private cloud storage powered by end-to-end post-quantum encryption. No tracking, no data mining and no compromises on security. [Secure Your Files ](https://app.dragbin.com/signup) ## Frequently Asked Questions ### What makes DragBin different from other secure cloud storage providers? DragBin uses zero-knowledge post-quantum encryption so nobody, including DragBin, can access your files or metadata. ### Is DragBin a private cloud storage solution? Yes, DragBin is a private cloud storage platform where your encryption keys remain on your device for complete privacy. ### How secure is DragBin's encrypted cloud storage? DragBin protects your files using client-side ML-KEM and AES-256 encryption against current and future cyber threats. ### Can I use DragBin for cloud storage backup? Yes, DragBin lets you securely back up, sync, and restore files across all your devices. ### Does DragBin support secure file storage for large uploads? Yes, DragBin supports unlimited file size uploads and bandwidth on dedicated plans. ### Is DragBin an open source cloud storage platform? Yes, DragBin follows an open source approach so users can verify how its privacy and encryption systems work. ### Can I migrate from Google Drive or Dropbox to DragBin? Yes, DragBin allows you to connect and migrate files from Google Drive, Dropbox, OneDrive, and other providers easily. --- Canonical: https://www.dragbin.com/features/secure-cloud-storage