SSL Secure Sockets Layer
SSL Certificate
Code Signing Certificates

SSL Encryption Defined

Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic protocols that provide communications security over the Internet. TLS and SSL encrypt the segments of network connections above the Transport Layer, using symmetric cryptography for privacy and a keyed message authentication code for message reliability.

Several versions of the protocols are in widespread use in applications such as web browsing, electronic mail, Internet faxing, instant messaging and voice-over-IP (VoIP).


The TLS protocol allows client/server applications to communicate across a network in a way designed to prevent eavesdropping and tampering.

A TLS client and server negotiate a stateful connection by using a handshaking procedure. During this handshake, the client and server agree on various parameters used to establish the connection's security.
  • The handshake begins when a client connects to a TLS-enabled server requesting a secure connection and presents a list of supported CipherSuites (ciphersand hash functions).
  • From this list, the server picks the strongest cipher and hash function that it also supports and notifies the client of the decision.
  • The server sends back its identification in the form of a digital certificate. The certificate usually contains the server name, the trusted certificate authority (CA) and the server's public encryption key.
  • The client may contact the server that issued the certificate (the trusted CA as above) and confirm that the certificate is valid before proceeding.
  • In order to generate the session keys used for the secure connection, the client encrypts a random number with the server's public key and sends the result to the server. Only the server should be able to decrypt it, with its private key.
  • From the random number, both parties generate key material for encryption and decryption.
This concludes the handshake and begins the secured connection, which is encrypted and decrypted with the key material until the connection closes.

If any one of the above steps fails, the TLS handshake fails and the connection is not created.

What are SSL Certificates?

People are getting smart about online security. More and more of them are looking for the padlock icon, the "https" prefix and a green address bar in their browser before submitting personal information online. If your Web site doesn’t have an SSL Certificate, visitors may leave before making a purchase, creating an account or even signing up for a newsletter. But you can change all that with an SSL Certificate. 

SSL Certificates are digital certificates that authenticate the identity of a Web site to visiting browsers and encrypt information for the server via Secure Sockets Layer (SSL) technology. 

An SSL Cert serves as an electronic "passport" that establishes an online entity's credentials when doing business on the Web. When an Internet user attempts to send confidential information to a Web server, the user’s browser will access the server’s digital certificate and establish a secure connection. 

SSL stands for "Secure Sockets Layer". SSL Definition; Secure Sockets Layer is a protocol designed to enable applications to transmit information back and forth securely. Applications that use the Secure Sockets Layer protocol inherently know how to give and receive encryption keys with other applications, as well as how to encrypt and decrypt data sent between the two.

How does SSL work? Some applications that are configured to run SSL include web browsers like Internet Explorer and FireFox, email programs like Outlook, Mozilla Thunderbird, Apple, and SFTP (secure file transfer protocol) programs, etc. These programs are automatically able to receive SSL connections.

To establish a secure SSL connection, however, your application must first have an encryption key assigned to it by a Certification Authority in the form of a Certificate. Once it has a unique key of its own, you can establish a secure connection using the SSL protocol.

How Can I Get a Secure Website?

Installing an SSL (Secure Sockets Layer) Certificate from SSL Certificate Vendors on your eCommerce Web site allows you to secure your online business and build customer confidence by securing all online transactions with up to 256-bit encryption. An SSL Certificate on your business' Web site will ensure that sensitive data is kept safe from prying eyes via a secure server. With a SSL Certificate, customers will place more trust in your secure website. 

A SSL Certificate provides the security your business needs and the protection your customers deserve. With a SSL Certificate, customers will know that you have a secure site. 

SSL and Consumers

Web browsers automatically notify users when connections are insecure. Your potential E-commerce customers are used to secure shopping, and will NOT send their private information unless their browser assures them it's safe to do so!

Without secure SSL Encryption, most of your customers will simply shop elsewhere. You cannot offer secure authentication to your customers without an SSL Certificate.

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