Verification Code of Hovertree Development log

Hovertree is an ASP. NET open source CMS, currently contains article system, library and message board features.
The code is completely open, the article content page generated a static HTM page, message board to provide message audit function, the article can publish HTML source code, image upload and generate high-quality thumbnails.

After the launch of the support of many netizens, again this expression of thanks!

Message Board continued to receive a lot of useful messages, but also have a lot of ads, so decided to submit a Message page to add verification code function.

Asp. NET verification code on the Internet to find, if not many, is particularly many, here in Collayi online found a, web site: http://keleyi.com/dev/b6539b6c4146cc53.htm, to use.

A verification code is a random display of characters on a page, such as a letter or a number, or it can be in Chinese. Provide an input box for users to enter the verification code they see, if the input matches the verification code, you can do the next step, such as the submission or login.

The Verification Code (CAPTCHA) is the abbreviation for "Completely Automated public Turing test to tell Computers and humans Apart" (fully automated computer-and human-Turing test), is a public automatic program that distinguishes whether a user is a computer or a person. Can prevent: Malicious hack password, brush tickets, forum irrigation, effectively prevent a hacker to a particular registered users with a specific program brute force to make a continuous attempt to break the way, in fact, with the verification code is now a lot of web site way, we use a relatively simple way to achieve this function. This problem can be generated and judged by a computer, but only humans can answer it. Since the computer is unable to answer the CAPTCHA question, the user who answers the question can be considered human.

Of course, the verification code can also let human users seriously input.

Verification code function includes generating verification code, displaying verification code, refreshing verification code, judging verification code and so on.

Specific features please visit this website to experience:
Http://hovertree.com/guestbook/addmessage.aspx

The source code will be published to http://hovertree.codeplex.com/

Transferred from: http://hovertree.com/hvtart/bjae/c730b0aef559aa51.htm

Development technical Article collection: Http://www.cnblogs.com/sosoft/p/kaifajishu.html

Verification Code of Hovertree Development log