Blockchain-based storage system for secure document storage and sharing

The rapid expansion platforms have heightened urgency for robust authentication to protect sensitive from escalating array cyber threats. Traditional security systems increasingly insufficient, as they vulnerable to attack, including phishing brute-force attempts. In response these challenges, two-factor (2FA) has emerged as critical solution, requiring users to provide forms verification access accounts. However, many 2FA implementations significant flaws, such as inadequate end-to-end and poor synchronization, which can expose security risks. This study an open-source, fully encrypted 2FA designed to overcome shortcomings. By leveraging protocols such as One-Time Password (TOTP) and HMAC-based Password (HOTP), our facilitates secure and reliable authentication. A standout of system is its seamless cross-device enabling users manage authentication tokens across devices, thereby enhancing usability. Central our is the implementation strong methods, specifically AES-256-CBC, which safeguards sensitive during transmission storage. This encryption ensures authentication data protected from interception, even environments. The user-friendly web designed to simplify the 2FA process, allowing users easily configure and manage authentication settings. By addressing in current technologies, our initiative to improve practices and promote widespread two-factor. The enhanced usability features our system intended to set new for secure authentication, ultimately contributing to digital landscape users.