How can we handle captcha in Load Runner?

CAPTCHA (an acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart") is a type of challenge-response test used in computing to determine whether or not the user is human. The term was coined in 2003 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John Langford.

The purpose of the CAPTCHA is to defeat the automation. CAPTCHA are based upon the turning test and as such the main purpose is to differentiate human from machine. Pattern recognition, vocal, visual (dynamic/static) has been broken several time. Much of the time it become a pain for the end-user, because they are a pain to decipher. Cultural reference or social pattern could be proven useful, achieve the same purpose and be less annoying for your customer

If you want to script the application which has CAPTCHA with the load runner you have to get the below things from the DEV.

• To disable CAPTCHA validation
• To make the CAPTCHA as static
• To remove the CAPTCHA
• To send the CAPTCHA value in server response(So that you can correlate)
• Provide the CAPTCHA details which are comes in the data base sequentially.

SSL received a weak ephemeral Diffie-Hellman key. (Error code: ssl_error_weak_server_ephemeral_dh_key) resolved

while recording any application with the load runner,or some times running in to manually we may get the below error in mozilla firefox.

Secure Connection Failed
An error occurred during a connection to consoleeset.soges-tech.ca:8443. SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message. (Error code: ssl_error_weak_server_ephemeral_dh_key)
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.

Solution for the above problem:

• Type about:config in the address bar of mozilla firefox
• search for security.ssl3.dhe_rsa_aes_128_sha and security.ssl3.dhe_rsa_aes_256_sha
• Set them both to false by double clicking on it.