DemoSecureChat

A basic implementation of secure chatting app using VerneMQ & Signal Protocol.

• A demo secure chat as like the picture using swiftUI.
• We used verneMQ as a local server to pass the messages.
• We’ll encrypt the messages before sending and decrypt the messages after receiving using Signal Protocol.

SignalProtocol

• The end to end encryption process is done by SignalProtocol-ObjC library.
• A signal session is created using this library in order to encrypt and decrypt messages.
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MQTT

• Vernemq is used locally as mqtt message broker which is a high-performance, distributed MQTT message broker.
• CocoaMQTT library is used to communicate with client to broker and vice versa.
• Alice is subscribed to a topic and Bob is publish to that topic in order to pass encrypted message as like the picture.
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