Kvant

App

Encrypt a file

Your file never leaves your device. Choose your keys, drop a file, keep the envelope.

  1. 1Choose your keys
  2. 2Drop a file
  3. 3Keep your envelope

Your tierConnect wallet to verify tier · showing Free

Holders encrypt more →

Step 1

Choose your keys

Your keys are what open your envelopes. Pick where they come from. You can switch at any time.

Use your wallet

Recommended

One signature. No gas, nothing on-chain.

  • Same wallet, same keys, on any device
  • Nothing to remember
  • Best for everyday files

Connect first, then sign to derive.

Use a key file

Full bunker

Random keys, locked with a passphrase you choose.

  • Not tied to your wallet: safe even if its curve falls
  • Works without a wallet. Copy the file to move it
  • Lose the file and the passphrase, and nothing can open your envelopes

Both seal with the same algorithms: ML-KEM-768 + X25519, signed with ML-DSA-65. Details: wallet keys are derived from one EIP-191 signature; key files are encrypted with Argon2id + AES-256-GCM.