Stegovaultpro: Secure Multi-Format Steganography for Confidential Data Hiding

Steganography is a technique used to hide confidential information within digital media files in such a way that the existence of the hidden data remains unnoticed. This project presents StegoVaultPro, a secure multi-format steganography platform designed to embed and extract hidden messages across multiple carrier types including images, audio, video, and text files. The system integrates Least Significant Bit (LSB) embedding techniques with strong cryptographic protection using AES encryption in Cipher Block Chaining (CBC) mode combined with PBKDF2 key derivation to ensure message confidentiality before embedding. The platform is implemented as a modular web-based application that provides a centralized dashboard for performing encoding and decoding operations. It supports carrier formats such as PNG, JPG, WAV, MP4, TXT, and PDF, allowing flexible multimedia steganography operations. Additional security mechanisms including password protection, input validation, and controlled decryption handling ensure safe processing of user data. Experimental observations demonstrate efficient embedding performance, reliable message recovery, and minimal perceptual distortion of carrier files. The proposed system offers a scalable and extensible framework for secure multimedia information hiding.