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Importance of Message Authentication Code in SSL/TLS

By Cristiana , in Technology , at September 4, 2021

Transport Layer Security, better known as SSL/TLS, is an encryption protocol designed to offer secure communications over the internet. SSL, as compared to TCP/IP, is more robust and offers advanced authentication and encryption protocols to ensure that sensitive data is delivered securely and appropriately. As an encryption method, SSL works on the basis of digital certificates, which are digitally signed with public keys. SSL uses the Diffie- Dahper, an algorithm that provides random access to the private key.


Certificates, which are also known as digital signatures, are the digital proof of authenticity issued by an organization. The most widely used SSL/TLS certificates include those issued by ICANN, the Internet Corporation for Assigned Names and Numbers (ICANN), and SSL Security Inc., which manages the PKI (plugged security) program. SSL/TLS works on the premise of digital certificates containing digital signatures. When a user requests a website, an internet browser verifies the authenticity of the site by checking if the given website certificate is contained in the URL (Uniform Resource Locater). If the site is trusted, it will display the appropriate SSL Certificate, which contains the digital signature.

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Digital Signature

SSL/TLS uses the Digital Signature Certificate to ensure sensitive information is not accessible to anyone else. For example, a URL that claims to offer free music downloads appears as https instead of http in https vs. http test. Also Visit Hacker Academy For More Information. Another benefit of SSL/TLS is that it can prevent tampering and breaking into secure web pages. It is possible for an unauthorized person to intercept and change the session history of web applications and web users, which are possible through tampering with the server.

SSL/TLS certificates

There are two methods of securely establishing SSL/TLS certificates. The most common way to do it is to use an intermediate certificate, or more commonly known as an SSL Certificate, which is an intermediate step along the way to the actual certificate. The advantage of SSL/TLS certificates is that they provide authentication and integrity to the end-user. On the other hand, there is another way of securing sensitive information using asymmetric encryption. An example of asymmetric encryption is Kerckhoffs’s symmetric key cryptography, also known as MAC (Message Authentication Code), and CTR (or irreversible).

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Transfer Protocol

The most commonly used and the most efficient way to establish secure socket layer is by using the Hypertext Transfer Protocol, or HTTP. The purpose of HTTP is to transfer large groups of data, which is done via Internet connections. The Hypertext Transfer Protocol also allows the transfer of sensitive information, such as credit card numbers, through the internet. It also enables the exchange of data between web browsers.



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