Development of Android Chat Application to Verify First Sender of the Image

Nowadays, people are shifting from web-based applications to android-based applications to connect people socially. It is important to identify ownership of the messages in android-based applications. Generally, the android-based social media apps (e.g., WhatsApp, etc.) provide end to end encryption to provide security. Therefore, one can never know about the origin of the forwarded information effortlessly. To know the source user, the tracking of each user who forwarded the data is required by the authorized people. But in the presented work, it is possible to know the source/origin of the information without keeping the track record of the people forwarded that data (i.e., image). It saves time and memory. In this proposed work, an image watermarking approach is implemented on the android platform to identify users and apps. The user is identified using the mobile number which is authenticated using OTP verification by Google firebase. The android-based applications (e.g., WhatsApp, etc.) is identified by using orthogonal Walsh codes as application-specific watermarks. Two different approaches are used for watermarking for performance evaluation and experimental results prove the significance of the proposed work.