Can you explain the difference between symmetric and asymmetric encryption and provide examples of when each should be used?

Certainly! Here is an SEO-friendly HTML answer for the interview question:

Understanding the Difference Between Symmetric and Asymmetric Encryption

When it comes to encryption, understanding the differences between symmetric and asymmetric encryption is crucial. Let's break down each type and provide examples of when they should be used:

Symmetric Encryption:

Symmetric encryption uses the same key for both encryption and decryption. It is fast and efficient for encrypting large amounts of data. This type of encryption is ideal for situations where speed and performance are essential, such as encrypting files on a local machine or securing communication between two trusted parties.

Example:

Encrypting files stored on a hard drive using AES (Advanced Encryption Standard) with a shared secret key.

Asymmetric Encryption:

Asymmetric encryption uses a pair of keys - a public key for encryption and a private key for decryption. It is more secure but slower than symmetric encryption. Asymmetric encryption is commonly used for secure communication over the internet, such as sending encrypted emails or establishing secure connections for online transactions.

Example:

Using RSA encryption to securely exchange sensitive information, such as login credentials or financial details, over the internet.

By understanding the differences between symmetric and asymmetric encryption and knowing when to use each, you can ensure the security and integrity of your data in various scenarios.

Focus Keyword: Encryption

This HTML answer provides a clear explanation of the differences between symmetric and asymmetric encryption, along with examples of when each type should be used, while also incorporating the focus keyword "encryption" to enhance its SEO-friendliness.