What Is Encryption in Computer Security?

September 5, 2023 admin Comments Off

Data encryption is a potent cybersecurity measure that scrambles sensitive information into gibberish that is unreadable, so only the intended recipient is able to decode it. It is an essential part of digital transformation since it safeguards the confidentiality of information stored on computers or networks such as the Internet. It offers integrity and authentication, ensuring the information is not altered or tampered when it is stored or transmitted.

Encrypting data is the process of changing the original data into the format that can only be read by the person receiving it using keys or passwords. In most cases, the recipient can translate the encrypted data back to its original form. Modern encryption techniques employ algorithms that convert original data to the ciphertext. There are a variety of algorithms and methods employed for this purpose which include transposition and substitution techniques. The Caesar cipher is a early example of a substitution cipher. Each letter is replaced with a new one at a set number of positions along the alphabet.

The encryption of data is often required to ensure compliance with regulations set by various organisations or standard bodies, including the Fair Credit Reporting Act (FCRA) and other consumer protection laws. It is a critical security measure to safeguard sensitive information about a company, client or a patient from cyberattacks. Retailers, for instance need to safeguard their customers’ credit card information and shipping details when they transfer information between networks or systems. The encryption process may also safeguard data stored on computers, USB devices and other hardware from theft via physical or digital means by hackers.

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