Document Type : Original Article
Authors
1
IT, faculty of computers and information, menofia university, menofia
2
Information technology dept., Faculty of computers and information, Menofia university
3
Faculty of computers and information, Menofia university
Abstract
Authentication is an essential mechanism
in information security. A graphical password (GP) is a password that employs graphics
rather than text to gain access to computers. GP is still not
widely used in the actual world because users are frustrated by
the numerous Login phases and the selection of various
determined images from prior techniques, therefore they have
returned to textual passwords. The vast majority of research
has failed to discover a means to increase overall security,
usability, memorability, and login time. In this paper, a novel
Choice-Based Graphical Password (CGP) Scheme for Web
Applications is proposed. The scheme is a two-level multifactor
authentication: textual and recognition. During registration,
the user first registered his or her data, and then the system
assigned him/her a random and unique number. The second,
user chose an image from CGP's dataset or from his or her
device. CGP then resized and blurred the user-selected image
before encrypting and storing it in the CGP database. The
attacker claimed that the image was one element, but it was a
combination of five factors (user name, user number, and
his/her registered image with the same name, size, and
resolution), making it difficult to guess and resistant to several
attacks using (CAPEC). The proposed CGP scheme's
performance evaluation enhanced a 36% increase in password
space, a 33% increase in possible password numbers, and a
36% increase in entropy when compared to prior methods.
CGP approach met the challenge of the password being
secure, trustworthy, memorable, user-friendly, and timesaving
Keywords
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