Open Peer Review on Qeios A Security Framework for the Mobile Application Using Color Barcode Rana Majumdar 1 , Arijit Dutta 1 , Anirban Mitra 1 , Sangeeta Banik 1 1 Sister Nivedita University (SNU) Funding: No specific funding was received for this work. Potential competing interests: No potential competing interests to declare. Abstract The thorough objective of this work is to establish a QR code framework for a secret key-secured concept. It is based on the asymmetric key verification context. SSH, server QR code is used for website login. The client-side stored RSA private key for encrypting information by implementing QR code verification, but presently QR codes are in the form of two-dimensional images for encryption purposes. The cell phones take the image of the QR code of the user and send a cryptographic reply to the server for broad verification. The upheld shading QR code inside the portable application for misusing the cyan (C), fuchsia (M), and yellow (Y) print the channels, and for the print shading by red (R), unpracticed (G), and blue channels, severally, apply the catch the shading picture. The hiding process embeds the quantized QR code so that it will not cause any visible distortion in the cover images and hides the QR code inside a color image. The results show the proposed method has high imperceptibility, integrity, and security. Rana Majumdar * , Arijit Dutta, Anirban Mitra, and Sangeeta Banik Dept. of Computer Science, Sister Nivedita University, Kolkata, India Correspondence: rana.majumdarwb@gmail.com Keywords: Barcode, color QR code, Security, Cryptographic. I. Introduction This work offers an authentication mechanism based on asymmetric key RSA encryption. One public key cryptosystem that is frequently used for safe data transmission is RSA. Installing the QR code software application is necessary; otherwise, passwords need to be remembered. The login process is quicker and less error-prone than with other frameworks. The application server is also not required to save the passwords of its clients. Additionally, it lets customers take advantage of how easy it is to filter QR codes. Because of their accuracy, readability, and practicality, scanner tags Qeios, CC-BY 4.0 · Article, April 17, 2024 Qeios ID: SH6TPY · https://doi.org/10.32388/SH6TPY 1/7