CAPTCHA

Used this technology many times when commenting. Today I know its name: CAPTCHA. It's another way to take adantage of Turing Test.  People can leverage easy stuff, and can leverage hard stuff too. For example, using one-way function for cryptography.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s