Novel Hybrid Encryption Algorithm and its Application in Text and Image Encryption

Cryptography is a discipline of science that encrypts plaintext into a format that is incomprehensible, something which could be deciphered by specific users. Cryptography can be used in a variety of ways, including text, image, network, path, and even video encryption. It was vital to find a mechanism to secure it during the worldwide pandemic, when most of the day-to-day tasks were mechanized and migrated to digital platforms. Users will be able to access this service of encoding and decoding messages hidden in photographs via an application. The application offers a user interface through which our end user may access steganography functions such as encoding, decoding, and embedding text.We devised a novel approach that combines two encryption algorithms: Triple AES/ DES and Blowfish. Using the concept of multithreading, this tries to improve the text's security and speed. The app will allow us to convey information over the phone lines while preventing data breaches and allowing us to send critical communications securely even if the app's chats are hijacked. We'll use image steganography to insert the encrypted text in an image later in the project. This will deceive hackers into thinking that simply a picture is being shared when, in fact, vital content is being delivered in the background.