ShieldFive is a zero-knowledge cloud storage platform that encrypts files on the client side before upload, ensuring that even the service provider cannot access plaintext data. It uses ML-KEM-1024 (FIPS 203) post-quantum encryption by default, combined with XChaCha20-Poly1305 for symmetric encryption. Key features include per-file content keys, geofenced share links, open-source cryptography library (@shieldfive/crypto), and hosting in Germany (EU). The platform offers 20 GB free storage with no credit card required, and paid plans starting at €2.50/month for 500 GB. Use cases include legal documents, financial records, creative work, and personal archives where privacy is paramount.
ShieldFive
Open-source post-quantum encrypted cloud storage with zero-knowledge architecture, EU-hosted, no AI training.
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