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SSL Certificate? Can I Use That On My CV?

Ever wondered what that lock sign in front of the search bar was. Well that's a sign of an SSL at play. Read along to find out more.

10 Mar, 21 by Susith Nonis 7 min Read

List of content you will read in this article:

An SSL certification (Secure Socket Layer) or TLS certification (Transport Layer Security) are protocols used to establish authentic and encrypted connections between networked computers. The best place to see SSL in action is through the internet – the biggest open network in the world.

However, it’s not always cat videos and puppies, and it’s far from it. Since the internet is open for everyone, there are people/entities waiting to hurt, exploit and engage in illegal activities. Concerning providing security and protection to internet users, SSL certifications are similar to Avengers of the internet. They encrypt the data traveling to and from websites and authenticate the data. So in this guide, we will cover the complete details on SSL certificates and why it is important for a website. 

As per the definition, the full form of SSL is Secure Sockets Layer and also known as TLS(Transport Layer Security), so it is a protocol to encrypt internet traffic and verify the server identity.  Every website requires an SSL certificate to change HTTP to HTTPS to provide security to the visitors.  In technical words, SSL is a global standard security system that works to encrypt communication between websites and web browsers. 

The SSL works by the use of cryptography. There is a pair of cryptographic keys at play which includes a private key that is kept secure and secret and a public key that can be distributed.

Okay, let me explain the process in a bit simpler form. If you have an SSL, you will have the aforementioned pair of keys with you. When data is transmitted from you, it is encrypted from the public key, and this encryption can only be decrypted only by the private key of the person.

As we mentioned before, the private key is kept safe with you, and if the data is intercepted during the transmission between the sender and the destination, it will be useless as the encrypted message can only be decrypted by you and the destination. It is what makes an SSL powerful and useful in keeping your data safe and authentic throughout the transmission.

If a website has an SSL certification, then the client software like web browsers or operating systems will inherently trust that website. This absolute authenticity and security procedure was the foundation for today’s secure browsing and electronic commerce between parties who have never met before.

An SSL Certification is not only used for websites, yet that's the most popular and common usage. If a site has a proper SSL certification, the users are guaranteed:

  1. Authenticity: The server presenting the certificate is in possession of the private key that matches the certificate's public key.
  2. Integrity:  Documents signed by the certificate (e.g., web pages) have not been altered in transit by a man in the middle.
  3. Encryption: SSL certificates offer communications between the client and server that are encrypted and secured.
  4. HTTPS: SSL certificate is important for websites because it is needed for HTTPS web addresses. The term HTTPS is a higher secured form for HTTP, and all HTTPS websites have their traffic which is encrypted by SSL.

These reasons make it possible for users to transmit confidential information like Credit card details, social security numbers, user credentials over the internet without a worry. The risk for users who submit sensitive data to sites without an SSL will be sent as plain text, and if someone eavesdrops on the connection, they will have all the details with no effort at all.

The first indication is to check the address bar. If:

  • The URL starts with "HTTPS".
  • There is a padlock icon on the address bar.
  • The site’s address starts with the company name.

The ultimate SSL will have all the three indications mentioned above. However, note that not all browsers show some of these visual identifications. Also, the best part of having an SSL is to get higher SERPs. If you don’t have an SSL on your website, then search engines like Google will drop your site as it will not have the credibility and security needed.

The Work of SSL certificate is based upon the Public Key Infrastructure or Public-key Cryptography. The method of SSL certification includes two different cryptographic keys: Public Keys and Private Keys. Hence the system can share public keys with anyone who received the certificate on visiting a specific website.   You can easily decrypt the information by the private key and encrypt the information by a public key.  

The system creates a secured connection when the client verifies that a public key has matched the private key, known as Asymmetric Encryption. If you want to understand the procedure of SEEL working, then there are some important principles:

  1. A secured communication starts with the TLS handshake, so two communicating particles open a secured connection for exchanging a public key. 
  2. Two different parties create session keys in the process of TLS handshake, so these session keys work to encrypt and decrypt the communication once the TLS handshake occurs successfully. 
  3. TLS works to ensure that HTTPS data sent by a user to a website and the HTTP data sent to a user is appropriately encrypted, and as we have mentioned above, all encrypted data required to be decrypted by private keys. 

As we have mentioned, a TLS communication session starts with the TLS handshake, and it uses asymmetric encryption.  So asymmetric encryption means that two keys are used for the two different ends of conservation. It is possible with public-key cryptography, which we have explained earlier. 

Multiple companies provide the certifications, but we recommend an SSL from Comodo, VeriSign, RapidSSl, and GeoTrust. At Monovm, we partnered with the top SSL providers, and you can get your very own SSL from one place.

So here are the major differences between HTTP and HTTPS:

Factors

HTTP

HTTPS

Full Form

Hypertext Transfer Protocol

Hypertext Transfer Protocol Secure

Security

It is lesser secured 

It is highly secured

Port Used

Port 80 by default

Port 443 by default.

Starts With

HTTP URLs starts with http://

HTTPs URLs starts with https://

Domain Name Validation

It doesn't need SSL.

It doesn't need an SSL certificate.

Data encryption

doesn’t use encryption.

Use data encryption.

Search Ranking

HTTP has no role in improving search rankings.

HTTPS works to improve search ranking.

Speed

Fast

It is a bit slower than HTTP

So it was the complete details on the SSL certificate and every single information around this particular security system. In simple words, the SSL certificate changes HTTP into HTTPS for providing a more secured and encrypted system( website) for the users. If you got important information from the guide, then please visit our official website as we have multiple blogs on different systems or techniques. In case you want to contact then mail us at sales@monovm.com, and we will connect with you as soon as possible. 

Susith Nonis

I'm fascinated by the IT world and how the 1's and 0's work. While I veture into the world of Technology I try to share what I know in the simplest way possible. Not a fan of coffee, a sweet addict and a self accredited 'master chef'.