Why use SSL ?

The Secure Sockets Layer (SSL) is a commonly-used protocol for managing the security of a message transmission on the Internet. TLS(Transport Layer Security ) and SSL encrypt the segments of network connections above the Transport Layer, using asymmetric cryptography for privacy and a keyed message authentication code for message reliability.

Each SSL Certificate consists of a public key and a private key to encrypt data ? a public key known to everyone and a private or secret key known only to the recipient of the message. The public key is used to encrypt information and the private key is used to decipher it.  Many Web sites use the protocol to obtain confidential user information, such as credit card numbers. By convention, URLs that require an SSL connection start with https: instead of http

https
SSL Certificates are credentials for the online world, uniquely issued to a specific domain and Web server and authenticated by the SSL Certificate provider.

What Happens When a Web Browser Connects to a Secure Web Site

how-encryption-works
Almost any service on the Internet can be protected with SSL. WebMail, Control Panels, POP, IMAP, SMTP, FTP and more are a few of the many applications for SSL Certificates.

An SSL certificate provider (certificate authority) issues digital certificates to organizations or individuals after verifying their identity. These SSL Certificate Reviews can help you choose one SSL certificate provider over another. Each SSL certificate provider has different products, prices, certificate features, and levels of customer satisfaction. In order to help you separate the wheat from the chaff, you can read authentic SSL reviews for each of the major certificate providers and decide who to trust with your SSL certificate needs.

Some of the SSL certificate providers are;

GoDaddy
GeoTrust
Thawte
VeriSign
Comodo
DigiCert
Entrust

There are number of results over the internet to “how to get ssl certificate?” or “get ssl certificates online”. If you find on Google for free ssl certificates for that question it is always give amount relevant or not relevant of result. Without a web host and SSL Certificate you may hard to make any sales.

There are 4 Steps get ssl certificates

Purchase SSL Certificate
Generate a CSR
Enroll for a SSL server Certificate
Install the SSL Certificate

CSR or Certificate Signing request

What is a CSR? A CSR or Certificate Signing request is a block of encrypted text that is generated on the server that the certificate will be used on. It contains information that will be included in your certificate such as your organization name, common name (domain name), locality, and country. It also contains the public key that will be included in your certificate. A private key is usually created at the same time that you create the CSR.

A certificate authority will use a CSR to create your SSL certificate, but it does not need your private key. You need to keep your private key secret.  The certificate created with a particular CSR will only work with the private key that was generated with it. So if you lose the private key, the certificate will no longer work.

SSL provides for encryption of a session, authentication of a server, and optionally a client, and message authentication. The SSL Handshake Protocol and the application protocol both operate on top of the SSL Record Protocol, a simple means of encapsulating authentication information. SSL-Record Layer works on TCP or some other reliable transport mechanism. Session establishment takes from 5 to 8 messages, depending on options used. SSL relies on the existence of a key certification mechanism for the authentication of a server. SSL does not provide for renegotiation of keys within a session. (This is not a problem in HTTP, but might be with other protocols.) A multitude of ciphers and secure hashes are supported, including some explicitly weakened to comply with export restrictions.