Implementation of mathematic operation
CAPTCHAs (Completely Automated Public Turing
tests to tell Computers and Humans Apart).
This package provides the functionality to create Numeral
CAPTCHAs (Completely Automated Public Turing
tests to tell Computers and Humans Apart). Features include:
The package creates numeral CAPTCHAs; due to the
stateless nature of the HTTP protocol, the logic to secure a
webpage using the package must be specifically implemented.
See the usage example
for detailled information.
Currently
The following example implements the standard use of a CAPTCHA:
Submitted form data is only evaluated when a CAPTCHA has been
solved correctly.
Text_CAPTCHA_Numeral gives you the ability
to generate numerical mathematical captchas.