SUM is a simple secure desktop instant messenger for local networks. No server infrastructure is needed. All communication is encrypted and nothing saved on any server.
Free • Open Source
What is SUM - Secure Ultimate Messenger?
SUM is a simple secure desktop instant messenger for local networks. No server infrastructure is needed. User find each other by registering in a file which will be stored at a shared network folder or optionally by an simple backend written in php. The communication between users is RSA encrypted. User can verify the identity of the other users by sharing their public keys. SUM is ideal for communication in company's because no messages will be stored anywhere. The integrated public/private key management allows a encrypted communication and ensures a tap-proof and tamper-proof messaging.
Features - no server needed - full encrypted - signature check (public / private key management) - send files (encrypted) - rooms - send formatted source code - avatars for users - emoticons