Design of Embedded System-Based CAPTCHA in C

Bo Qu; Zhao Zhi  Wu

doi:10.4028/www.scientific.net/AMM.347-350.1658

Paper Titles

Design of Web Based Secure Embedded System in C
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An Improved Channel Estimation Method in OFDM System
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Design for Realizing Arbitrary Fractional Divider Based on FPGA which Duty Cycle is up to 50%
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Design of Embedded System-Based CAPTCHA in C
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Fabrication of L Band 4H-SiC SIT Devices
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Research on Real-Time Moving Method of Electronic Equipment Virtual Maintenance Prototyping Model
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A Submicron InGaAs/InP Double Heterojunction Bipolar Transistor with Ft and Fmax of 280GHz
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Research and Design of Beamforming Device of SLC-LSCMA Algorithm Based on FPGA
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 347-350Design of Embedded System-Based CAPTCHA in C

Design of Embedded System-Based CAPTCHA in C

Abstract:

This paper describes the technical details of design and implementation of embedded system-based CAPTCHA (verification code) in C, including a brief analysis of techniques for implementing CAPTCHA, and a simple and practical CAPTCHA system designed by the author of this paper, which can be used not only in embedded systems but also ordinary Web based MIS or control systems, without the support of any dedicated graphics library. An example is provided to show the practical usage and effect of this CAPTCHA system on an embedded application demo system.

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Periodical:

Applied Mechanics and Materials (Volumes 347-350)

Pages:

1658-1662

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.347-350.1658

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Online since:

August 2013

Authors:

Bo Qu, Zhao Zhi Wu

Keywords:

Bitmap Image, C Programming, CAPTCHA, Embedded System, Secure Login

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