Understanding technical terms used in SSL is essential.Here you can learn more about:
An EV SSL certificate installed on a machine triggers the green url bar in most browsers.
That green bar is a visual garantee that the transactions are secured on a website.
Green bar display on the most popular browsers:
In 2007, several surveys showed that the green bar display generated instant positive reactions for 75% of internet users, a 15% raise of the purchase intentions and a 15% decrease in the abandonment of the purchase process.
The EV SSL certificate is therefore a powerfull marketing tool that can boost your Ecommerce websites.
Depending on your needs or your technical pool, you may need to buy additionnal certificates or licences.
A certificate's always sold to be installed on a unique machine (physical or virtual).The additionnal licence makes then possible to duplicate an existing certificate instead of buying a new one for each different machine you may use.
Several configuration can be encountered:
A new certificate can be reissued in substitution of an existing one with the same fields but a different pair of keys*.
That can be done in those situations:
*pair of keys : Item privet key / public key elements : if a new pair of keys is needed a new CSR has to be requested.