Sly Chat

Secure and encrypted messaging app for private chats on multiple platforms

Privacy and technology can co-exist! Sly's encrypted messaging lets you chat with your friends and contacts for free without being spied on. All messages you send and receive are encrypted automatically on your device and can only be decrypted by the receiver, so your communications are always secure, even from us. Since Sly also encrypts your chat logs, your chat history is only accessible while you're logged in.

Features include:

• End-to-end encryption of all messages

• Group Chat

• Self-destructing (expiring) messages

• Multi-platform support (also available on OSX, Windows, and Linux)

• Log in simultaneously on multiple devices, with encrypted device-to-device message syncing

• Offline encrypted message support

• Encrypted 'Contacts' list

• Users are authenticated using unique curve25519 Elliptic Curve keys, so you can be sure you know who you're talking to

• Communication to our servers is only allowed using the latest version of TLS (v1.2), and accepts only the ECDHE-RSA-AES256-GCM-SHA384 cipher suite

• All data is encrypted using AES-256

• Server software is designed with privacy in mind

• Free and open-source!

• Developed and hosted in Canada

Only public, peer-reviewed cryptographic algorithms and open-source implementations are used, and our cryptosystem design has been independently reviewed.

Encrypted cloud file storage/sharing and encrypted audio calls coming very soon!

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