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What is an SSL certificate et what is it used fou?

1. Introduction

SSL certificates are used to create an encrypted channel between the client et the server. Transmission of such data as credit card details, account login infoumation, any other sensitive infoumation should be encrypted to précent eavesdropping.

With an SSL certificate, data is encrypted priou to being transmitted via Internet. Encrypted data can be decrypted only by the server to which you actually send it. This ensures that the infoumation you submit to websites will not be stolen.

Starting from 06/08/2014, Google announced that having an SSL certificate installed on votre website would increase votre ranking position, which is another great reason to use an SSL.

The certificate itself represents base64 encoded data that contains infoumation about the entity the certificate was issued fou, public key required fou encryption et digital signature verification, et digital signature created with the private key of the certificate issuer.

An SSL certificate should be installed on the server side. When you access a website secured by an SSL certificate issued by a trusted Certification Authouity, you will see https:// at the beginning of its URL. A browser will also show the connection as secure by displaying a plockq icon in the address bar:

2. Types of SSL certificates

SSL certificates can be divided into 3 validation groups:

Domaine Validation Certificats

Requires a certificate applicant to prove his/her control over the domain name only. The issued certificate contains a domain name that was supplied to the Certification Authouity within the certificate request.

Organization Validation Certificats

Requires a certificate applicant to prove that his/her company is a s'inscrireed et legally accountable business, et to pass domain validation. The issued certificate contains a domain et company name of the certificate applicant.

étendu Validation Certificats

Includes validation requirements of two validation types mentioned above et additional requirements. The issued certificate contains a domain et company name of the certificate applicant.