Using Theme-based Narrative Construct of Images as Passwords: Implementation and Assessment of Remembered Sequences

International journal of online engineering

Krishnashree Achuthan¹  Bipin Nair²  Shyam Diwakar²  Priya Chellaiah² 

[1] Amrita Center for Cyberphysical Systems and Networks, Amrita University.;Amrita School of Biotechnology, Amrita Vishwa Vidyapeetham (Amrita University)

关键词: Cybersecurity;    Image-based passwords;    Authentication;    Sequence Learning;    Cartoon Sequence;    ElectroEncephaloGraphy.;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: International Association of Online Engineering

【 摘 要 】

Secret keys connecting users to the system is the heart of cryptographic systems. With the recent wars, several cryptographic systems that use alpha-numeric passwords have been known to be vulnerable to many attacks. Image based password systems were introduced to add more complexity and security. This paper employs human uniqueness of narrative skills on an image-based password system with focus on theme in the password generation process. To generate the secret password, a specially designed computer game was used. We used narrative constructs composed of cartoon image sequences to generate user-specific secret key. The durability of generated passwords and the authentication process while assessing the reconstruction process by a potential hacker was verified. Under imposed psychological duress, users failed retrieving the password sequence suggesting the reliability as an anti-coercive attack cybersecurity tool. A set of experiments were used to analyze user behavior behind the image-based password system. EEG measurements demonstrated increased activity of α rhythms in F3 and FC5 channel bins and augmented levels of β rhythms in F3 and O1 channels, suggesting users added personalization to authentication more than in alpha-numeric password-based logins.

【 授权许可】

Unknown