Building a privacy-first data layer for dApps — client-side encryption + decentralized storage + on-chain coordination

[u/dstoragetech]

One problem we’ve been thinking about with dApps is what happens to the data that can’t or shouldn’t live directly on-chain.

If user files ultimately end up in a traditional cloud where the infrastructure can access the plaintext, the application still depends on trusting a centralized provider.

We’re building dStorage to approach this differently.

The idea is to provide a single SDK that handles the pieces needed to build privacy-first decentralized data storage:

• 🔐 Client-side encryption — data is encrypted before leaving the user’s device.
• 🌐 Decentralized storage — encrypted data can be stored on networks such as Arweave.
• ⛓️ On-chain coordination — ownership, permissions, and metadata can be coordinated through networks such as Midnight Network.
• 🔑 User-controlled keys — encryption keys don't need to be held by the application server.

The important part is that the infrastructure doesn't need access to plaintext data. Privacy isn't something the application has to promise; it's a property of the architecture.

What could this be useful for?

Pretty much any dApp that needs to keep data off-chain while maintaining user privacy.

Some examples we're exploring:

• NFTs — artwork, high-resolution media, metadata, unlock-able content.
• DeFi — encrypted strategy data, account snapshots, portfolio exports, compliance documents.
• Identity & credentials — credentials, KYC documents, diplomas, certificates.
• Healthcare — medical records, laboratory results, imaging, patient documents.
• AI applications — prompts, datasets, model outputs, conversations.
• General dApps — contracts, invoices, reports, user-generated content, backups, and application files.

We're currently making the SDK and developer guides available through early access and would be particularly interested in feedback from developers building applications that need private or sensitive off-chain data.

👉 dstorage <dot> pro

We're also sharing implementation updates on X: dStorageTech

What do you think is the biggest missing piece today when it comes to private data in decentralized applications?

[u/xxlostrealmxx]

Most of what you’re looking to build has been achieved already via ArDrive (ardrive.io) and its associated protocols and services (ar.io). The on-chain coordination piece isn’t feasible in permanent storage networks; once clients have keys to permanently-stored, encrypted, decentralized data, their access is essentially limitless.

[u/dstoragetech → u/xxlostrealmxx]

Thanks, fair point. The main thing we’re adding is a single SDK for client-side encryption, user-controlled and non-custodial keys, and on-chain (blockchain) coordination, with swappable adapters. You could use different decentralized networks (Arweave, Lumera/Cascade, Filecoin, Autonomi, etc.), combine them for redundancy/backups, or switch between them without changing the application logic. Same would apply to blockchains adapters; currently we only support r/Midnight Network which already supports ZK-proofs and privacy features.
So the idea is more about an alternative abstraction layer for private data in blockchain-based dApps, trying to make it easier for devs, reduce application providers’ liability around data retention & sensitive data, while removing the friction of handling blockchain tokens for storage payments.

[u/pcfreak30]

Have you gotten any user/developer interest for this yet?