The seminar topic will focus on Captcha technology and include a detailed report on its implementation and effectiveness.

The seminar topic will focus on Captcha technology and include a detailed report on its implementation and effectiveness.

Introduction

Welcome to my project on the topic of CAPTCHA for my Bachelor of Technology in Computer Science Engineering seminar. CAPTCHA, which stands for Completely Automated Public Turing test to tell Computers and Humans Apart, is a type of challenge-response test used in computing to determine whether or not the user is human. In this report, we will discuss the existing system of CAPTCHA, its disadvantages, and propose a new system with advantages and features.

Problem Statement

The existing system of CAPTCHA is known to be vulnerable to various attacks, such as OCR (Optical Character Recognition) software, and is often frustrating for users due to the difficulty in deciphering the distorted text. This poses a challenge for websites that rely on CAPTCHA to prevent spam and automated bots from accessing their services. Therefore, there is a need for an improved CAPTCHA system that is both secure and user-friendly.

Existing System

The existing system of CAPTCHA typically involves displaying distorted text or images that users must correctly identify in order to pass the test. However, this method is not foolproof as OCR software can easily bypass such tests by recognizing the characters. Additionally, users often have difficulty reading the distorted text, leading to frustration and a poor user experience.

Disadvantages

Some of the key disadvantages of the existing CAPTCHA system include:

  • Unreliable security against automated attacks
  • Frustration for users due to difficult-to-read text
  • Lack of accessibility for users with disabilities
  • Potential for false positives and negatives

Proposed System

The proposed system for CAPTCHA aims to address the shortcomings of the existing system by introducing new challenges that are more secure and user-friendly. One possible approach is to use image recognition technology to present users with images and ask them to identify specific objects or patterns within the image.

Advantages

Some of the advantages of the proposed CAPTCHA system include:

  • Improved security against automated attacks
  • Enhanced user experience with visually engaging challenges
  • Increased accessibility for users with disabilities
  • Reduced risk of false positives and negatives

Features

The new CAPTCHA system will feature:

  • Image recognition challenges
  • Dynamic challenges that adapt based on user behavior
  • Multi-factor authentication for enhanced security
  • Integration with machine learning algorithms for continuous improvement

Conclusion

In conclusion, the proposed system for CAPTCHA offers a more secure and user-friendly alternative to the existing system. By leveraging image recognition technology and dynamic challenges, we can enhance the security of websites while improving the user experience. Further research and development will be needed to implement and test this new CAPTCHA system in real-world scenarios.