E2EE Messaging. Zero-Knowledge Relay. Zero Logs. Zero Residue.
Generate a cryptographically secure 256-bit key using local mouse entropy, then share it securely with your peer.
01 — Entropy Harvesting
Move your cursor continuously to gather high-entropy system noise. This process requires approximately 27 seconds of active physical input.
02 — Cryptographic Key
Transmit this key out-of-band via a secure secondary channel. Both peers must supply the identical cryptographic signature to establish a peer-to-peer bridge. ID-CLOSE. strictly operates with zero-knowledge — your key never touches the network.
03 — Handshake
ID-CLOSE is an ultra-private, client-side end-to-end encrypted messaging tool built on the principle that privacy is not a feature — it is a requirement.
All encryption and decryption occurs entirely on your device. The relay server never sees your key, your plaintext, or your identity. It routes ciphertext only.
Messages are encrypted with AES-256-GCM using keys derived from user-mixed entropy. Rooms are ephemeral — created on demand and destroyed when empty. No databases. No logs. No residue.
ID-CLOSE. draws inspiration from Swiss security engineering: precision, restraint, and the belief that the strongest systems are the simplest ones.
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Awaiting peer connection.
All messages are encrypted on-device before transmission.