Methods of data encryption in a data lakehouse

The second data security component is the data encryption service. Encryption is the most common form of protecting data. When data is encrypted, it cannot be deciphered even if someone gains unauthorized access to it. It becomes the second line of defense. However, hackers have their methods as well. They are getting more and more sophisticated in breaching data. The standard method of attacking encryption is through brute force. Brute force tries multiple keys to gain access to data until the right one is found. The encryption algorithms that encrypt the data prevent this by employing sophisticated algorithms and smartly managing its keys.

The following figure depicts the data encryption process:

Figure 7.5 – The high-level process of data encryption

Data encryption is the process of translating data from typical data in human-readable format (plaintext) into a format that is unreadable by humans (ciphertext...