Publication detail

CREATING A RANDOM CHARACTERS FOR CAPTCHA SCHEMES FROM EXISTING FONTS

BOŠTÍK, O.

Original Title

CREATING A RANDOM CHARACTERS FOR CAPTCHA SCHEMES FROM EXISTING FONTS

English Title

CREATING A RANDOM CHARACTERS FOR CAPTCHA SCHEMES FROM EXISTING FONTS

Type

conference paper

Language

en

Original Abstract

For nearly a two decades, development of new mechanisms for securing web applications from unwanted traffic caused by automated programs called CAPTCHA schemes are under constant improvement. As significant fraction of this defense mechanisms are based on known issues of Optical Character Recognition methods, attackers must help to improve current algorithms to overcame the security measures. The focus of this work is to present an idea of randomly generated pseudo characters for purpose of forming the text-based Captcha challenges. The main part of this article is dealing the problem of transforming the common computer fonts into abstract characters.

English abstract

For nearly a two decades, development of new mechanisms for securing web applications from unwanted traffic caused by automated programs called CAPTCHA schemes are under constant improvement. As significant fraction of this defense mechanisms are based on known issues of Optical Character Recognition methods, attackers must help to improve current algorithms to overcame the security measures. The focus of this work is to present an idea of randomly generated pseudo characters for purpose of forming the text-based Captcha challenges. The main part of this article is dealing the problem of transforming the common computer fonts into abstract characters.

Keywords

OCR, CAPTCHA, Bubble Captcha, computer vision

Released

26.04.2018

Publisher

Vysoké učené Technické, Fakulta elektrotechniky a komunikačních technologií

Location

Brno

ISBN

978-80-214-5614-3

Book

Proceedings of the 24nd Conference STUDENT EEICT 2018

Edition number

1

Pages from

353

Pages to

357

Pages count

5

Documents

BibTex


@inproceedings{BUT147092,
  author="Ondřej {Boštík}",
  title="CREATING A RANDOM CHARACTERS FOR CAPTCHA SCHEMES FROM EXISTING FONTS",
  annote="For nearly a two decades, development of new mechanisms for securing web applications
from unwanted traffic caused by automated programs called CAPTCHA schemes are under constant
improvement. As significant fraction of this defense mechanisms are based on known issues of Optical
Character Recognition methods, attackers must help to improve current algorithms to overcame
the security measures.
The focus of this work is to present an idea of randomly generated pseudo characters for purpose of
forming the text-based Captcha challenges. The main part of this article is dealing the problem of
transforming the common computer fonts into abstract characters.",
  address="Vysoké učené Technické, Fakulta elektrotechniky a komunikačních technologií",
  booktitle="Proceedings of the 24nd Conference STUDENT EEICT 2018",
  chapter="147092",
  howpublished="electronic, physical medium",
  institution="Vysoké učené Technické, Fakulta elektrotechniky a komunikačních technologií",
  year="2018",
  month="april",
  pages="353--357",
  publisher="Vysoké učené Technické, Fakulta elektrotechniky a komunikačních technologií",
  type="conference paper"
}