TimeSeal – Cryptographically enforced time-locked vaults for secrets

Summary: TimeSeal enables encryption of messages that unlock automatically at a specified future time or after inactivity using split-key cryptography. It employs zero-trust AES-GCM encryption on Cloudflare Workers, ensuring secure, time-based access control without exposing full decryption keys until conditions are met.

What it does

TimeSeal creates encrypted vaults and dead man's switches by splitting decryption keys between the client and server. The server releases its key half only after the unlock time or inactivity threshold, enabling scheduled or conditional message access.

Who it's for

Users needing secure, time-restricted access to sensitive messages or automated unlocking based on inactivity.

Why it matters

It prevents premature access to encrypted content by enforcing cryptographic time locks and inactivity triggers, enhancing data confidentiality.