Chapter 1
Database Fundamentals
Course: Comptia Datasys Ds0 001
Subject: Comptia Datasys Plus Ds0 001
Chapter: Data And Database Security
Data security is a critical component of any organization's overall cybersecurity strategy. It ensures that sensitive data is protected from unauthorized access, breaches, or corruption during its lifecycle. The core principles of data security include confidentiality, integrity, and availability. Here is an explanation of key data security concepts:
1. Encryption
Encryption is the cryptographic process of converting plaintext data into ciphertext using an encryption algorithm and a cryptographic key. The objective is to ensure that only authorized parties with access to the correct decryption key can convert the data back to its original form. Encryption is a foundational aspect of data confidentiality and is widely used to secure digital information, both during transmission and while stored.
There are two primary stages where encryption is applied: data in transit and data at rest.