What is data encryption and how does it work?

How does encryption work? Encryption is the process of taking plain text, like a text message or email, and scrambling it into an unreadable format — called “cipher text.” This helps protect the confidentiality of digital data either stored on computer systems or transmitted through a network like the internet.

What is data encryption with example?

The first is known as Symmetric Encryption Cryptography. It uses the same secret key to encrypt the raw message at source, transmit the encrypted message to the recipient, and then decrypt the message at the destination. A simple example is representing alphabets with numbers – say, ‘A’ is ’01’, ‘B’ is ’02’, and so on.

Why is data encryption necessary?

It helps protect private information, sensitive data, and can enhance the security of communication between client apps and servers. In essence, when your data is encrypted, even if an unauthorized person or entity gains access to it, they will not be able to read it.

When should data be encrypted?

Storing or Sending Sensitive Data Online: When storing something particularly sensitive — perhaps archives of tax documents that contain personal details like your social-security number — in online storage or emailing it to someone, you may want to use encryption.

When should you not use encryption?

Top 4 Reasons Encryption Is Not Used

• Lack of executive support. This has been a problem since organizations started using encryption.
• Lack of resources/funding. Encryption costs money.
• Lack of understanding of what is required.
• Increasing technology complexity, BYOD and mobility.

When should you encrypt data?

Encryption is commonly used to protect data in transit and data at rest. Every time someone uses an ATM or buys something online with a smartphone, encryption is used to protect the information being relayed.