StenVault — Encrypted Cloud Storage

What it does

Every encrypted storage I checked — Proton Drive, Tresorit, ente.io — stops at classical crypto. Adversaries already harvest traffic to crack later with quantum machines. So I built StenVault with hybrid post-quantum encryption (ML-KEM-768 + X25519) — if either layer breaks, the other holds. I wrote my own PQC WASM package after finding gaps in the leading library. Auth is OPAQUE — server never sees your password. Try /send — encrypt and share, no account needed.

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  ShieldFiveJun 2026 · shieldfive.com · ▲4

  Zero-knowledge cloud storage, post-quantum by default

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  Ellipticc Drive – open-source cloud drive with E2E and PQ encryptionOct 2025 · ellipticc.com · ▲21

  Hey HN, I’m Ilias, 19, from Paris. I built Ellipticc Drive, an open-source cloud drive with true end-to-end encryption and post-quantum security, designed to be Dropbox-like in UX but with zero access to your data, even by the host. What’s unique: Free 10GB for every user, forever. Open-source frontend (audit or self-host if you want) Tech stack: Frontend: Next.js Crypto: WebCrypto (hashing) + Noble (core primitives) Encryption: XChaCha20-Poly1305 (file chunks) Key wrapping: Kyber (ML-KEM768) Signing: Ed25519 + Dilithium2 (ML-DSA65) Key derivation: Argon2id → Master Key → encrypts all…

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  End-to-End Encrypted Cloud Storage. All Open Source2014 · disk42.com · ▲42
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  Access Vault2025 · accessvault.app · ▲21

  Post-Quantum Credential Management Made Easy

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  TutaCrypt, post-quantum encryption protocols for securing emails [pdf]2024 · tuta.com · ▲15

  Hi HN, we are the developers from Tuta (formerly Tutanota), the German end-to-end encrypted email provider, and we recently released the world's first post-quantum encryption for email. We have included a full technical write-up of the cryptography involved in these changes and we have released it for open public review. This document specifies TutaCrypt, a protocol designed for hybrid email encryption in Tuta Mail. The protocol combines a classical Elliptic-Curve-Diffie-Hellman key exchange with a post-quantum KEM. The goal is to replace the usage of RSA in Tuta Mail. In the remainder of…

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  CryptexVault – Decentralized Password Manager2023 · cryptex-vault.com · ▲11

  Hi everyone! We started working on this project last year because a password manager that we used was being sold to another company and stopped offering their service. We were not happy with the alternatives that were available so we decided to give it a shot and build our own. We are now at a point where we have a working Beta and are looking for some feedback from the community. The main idea is to have data synchronization without a central server (single point of failure). When you create a Vault (inside which you can store your credentials and other sensitive data), you can "Link" it to…

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