The openssl extension is missing, when install Composer? Magento 2

The openssl extension is missing, when install Composer?

In My Case :

You need to enable the openssl extension: Follow below steps.

Go to C:\wamp\bin\php\php5.4.16\php.ini that is the php configuration file that has it type has "configuration settings" with a driver-notepad like icon.

open it with notepad for openssl and search php_openssl.dll.

There is a semi-colon before the openssl extension :- ;extension=php_openssl.dll

remove the semi-colon and you'll have "extension=php_openssl.dll"

save the file and restart your WAMP server.

Now Re-install the Composer.