Crypto Model of Real-Time Audio Streaming Across Paired Mobile Devices

The progressive usage of the Internet of Things (IoT) and smartphone ubiquity is inducing attention, importance and interest in leveraging smartphones for deploying and running sophisticated mobile applications. Modern smartphones have good connectivity, a significant amount of processing, and are always with us, making them an ideal candidate for envisioned applications that can serve as a means of ensuring the safety and security of mankind. This research aims at developing a real-time audio encryption application between two or more handheld mobile devices, the communication between devices is made secure by encrypting the audio sent in real-time using Advanced Encryption Standard (AES) 256-bit encryption key while channelling message through a cloud-hosted database (Firebase) that works as a real-time database and performs implicit AES encryption and decryption on its data. Geocoder from the Google Map API library services is used to track the location of the audio sender.