Secure Graphical Password Authentication with Blockchain Integration

Graphical password systems, which aim to replace the traditional alphanumeric username and password authentication methods. Conventional approaches often face significant drawbacks, such as users selecting weak passwords or struggling to remember strong, complex ones. Graphical password systems leverage images as passwords, offering an alternative to address these challenges. The article provides a comprehensive overview of various methodologies employed in this field, categorizing them into two primary groups: detection-based and memory-based approaches. It also highlights potential areas for further research, discusses the advantages and limitations of each technique, and examines the challenges of designing and implementing graphical password systems. Additionally, it compares the security of graphical passwords with that of text-based passwords. This study will be valuable to researchers and information security professionals exploring innovative password-based authentication solutions.