Textual passwords are the most common method used
for authentication. But textual passwords are vulnerable to eves dropping,
dictionary attacks, social engineering and shoulder surfing. Graphical
passwords are introduced as alternative techniques to textual passwords. Most
of the graphical schemes are vulnerable to shoulder surfing. To address this
problem, text can be combined with images or colors to generate session
passwords for authentication. Session passwords can be used only once and every
time a new password is generated. In this paper, two techniques are proposed to
generate session passwords using text and colors which are resistant to
shoulder surfing. These methods are suitable for Personal Digital Assistants.
Existing
System with Limitations:
The
existing system to use passwords can be easily guessed or cracked. The
alternative techniques are graphical passwords and biometrics. But these two
techniques have their own disadvantages. Biometrics, such as finger prints,
iris scan or facial recognition have been introduced but not yet widely
adopted.
Disadvantage:
1. The
systems can be expensive.
2. The
identification process can be slow.
Proposed
System Features:
The
proposed system using new Authentication technique consists of 3 phases: registration
phase, login phase and verification phase. During registration, user enters his
password in first method or rates the colors in the second method. During login
phase, the user has to enter the password based on the interface displayed on
the screen. The system verifies the password entered by comparing with content
of the password generated during registration.
Advantage:
1. The
Session passwords are passwords that are used only once
2. The
users input different passwords.
3. The
session passwords provide better security against dictionary and brute force
attacks as password changes for every session.
System Requirement Specifications
Hardware Requirements:
• PIV
2.8 GHz Processor and Above
• RAM
512MB and Above
• HDD
40 GB Hard Disk Space and Above
Software Requirements:
• WINDOWS
OS (XP / 2000 / 200 Server / 2003 Server)
• Visual
Studio .Net 2008 Enterprise Edition
• Internet
Information Server 5.0 (IIS)
• Visual
Studio .Net Framework (Minimal for Deployment)
version 3.5
SQL Server 2005 Enterprise Edition
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