Abstract
Among the various smart multimedia devices, multimedia smartphones have become the most widespread due to their convenient portability and real-time information sharing, as well as various other built-in features. Accordingly, since personal and business activities can be carried out using multimedia smartphones without restrictions based on time and location, people have more leisure time and convenience than ever. However, problems such as loss, theft, and information leakage because of convenient portability have also increased proportionally. As a result, most multimedia smartphones are equipped with various built-in locking features. Pattern lock, personal identification numbers, and passwords are the most used locking features on current smartphones, but these are vulnerable to shoulder surfing and smudge attacks, allowing malicious users to bypass the security feature easily. In particular, the smudge attack technique is a convenient way to unlock multimedia smartphones after they have been stolen. In this paper, we propose the secure locking screen using time pattern (SLSTP) focusing on improved security and convenience for users to support human-centric multimedia device completely. The SLSTP can provide a simple interface to users and reduce the risk factors pertaining to security leakage to malicious third parties.
Highlights
The smart multimedia devices that have been developed through active and continuous research on IT have penetrated deeply into their users’ daily living
Pattern lock, personal identification number (PIN), and passwords are the most widely used locking features, but they are highly vulnerable to shoulder surfing and smudge attacks, and a new type of locking system is required [12,13,14]
Multimedia smartphones have become very popular among the general public thanks to their simple portability and various convenient features, the risk of important data loss due to phone loss or theft by a malicious third party has increased
Summary
The smart multimedia devices that have been developed through active and continuous research on IT have penetrated deeply into their users’ daily living. Multimedia smartphones provide users with basic functions such as an alarm, memos, contacts, and camera, as well as having various other features In this way, they increase leisure time utilization and convenience [1,2,3,4,5]. Most multimedia smartphones are equipped with various built-in locking features [6,7,8,9,10,11] These include a personal identification number (PIN), which uses a simple number combination; a password, which uses numbers and characters; pattern lock via dragging in the preferred direction; face recognition of the user; face and voice recognition of the user; and drag to hide the screen.
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