A simple overview of encryption

In today's world, data protection and data privacy are of the utmost importance not just to individuals but also to large organizations that are dealing with customer data on a huge scale. When data is not encrypted, that data is considered to be plaintext, meaning that anyone who has access to the data is freely able to view the data without any restrictions. If none of this data is sensitive data, then having data stored as plaintext is not an issue. However, if the data contains sensitive or confidential information within it, then the data should be encrypted. 

This encryption should be applied both at rest and in transit. Encryption at rest means that the data is encrypted where the object is stored, for example, when data is being stored on an EBS volume or in an Amazon S3 bucket. On the other hand, encryption in transit ensures that an encryption mechanism is applied to data when it is being sent/received between two or more...