The document presents a method for efficient and secure authentication on remote servers using biometric signals embedded in user images via watermarking techniques. It outlines a three-step user registration process, the encryption of biometric data using the Blowfish algorithm, and a Least Significant Bit (LSB) method for embedding this data into user face images. Additionally, it discusses the robustness of this method against attacks and emphasizes the importance of integrating biometric authentication systems into practical applications.