Abstract
Advances in the field of Information Technology (IT) make Information Security an inseparable part of it. In order to deal with security, authentication plays an important role. Computer Scientists have developed Human Interactive Proof (HIP) commonly known as CAPTCHAs (Completely Automated Turing Tests to Tell Computers and Humans Apart) as a challenge-response test used in computing to determine and confirm the identity of an individual requesting their services form that of malicious automated scripts. It is a security measure which uses computer programs that automatically generate and grade puzzles that most people can solve without difficulty, but that current programs cannot. The purpose of such schemes is to ensure that the rendered services are accessed only by a legitimate user, and not anyone else. This paper presents a brief overview of the literature in the field of CAPTCHA authentication techniques in the online environment. Furthermore, it evaluates HIP with an objective to provide insights on their lack of acceptance as well as some suggestions for further research in this field.
Highlights
Security is becoming a more important issue for business organization, web bloggers, site owners, and the need for authentication has become more important than ever
The most generic type of CAPTCHA consists of an image of seemingly random numbers and letters that are distorted to thwart optical character recognition
The use of Human Interactive Proof (HIP) systems for web site authentication is a response to the rising issue of eliminated annoying spam bots from many sites
Summary
Security is becoming a more important issue for business organization, web bloggers, site owners, and the need for authentication has become more important than ever. The use of HIP systems for web site authentication is a response to the rising issue of eliminated annoying spam bots from many sites This will allow users to spend more time working on critical assignments instead of dedicating precious hours deleting spam comments. The first line of defense against a considerable percentage of spam is by posing a challenge in the form of a word or math question that will protect the site in question. It sounds elementary, but HIP developers have saved thousands users and site administrators from miserable bots and trolls
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