Encryption in microservices
We can define encryption as the process of transforming information in such a way that only authorized parties are able to read it. This process can be done practically at any level of your application. For example, you can encrypt your whole database, or you can add the encryption in the transport layer with SSL/TSL or with JSON Web Token (JWT).
These days, the encryption/decryption process is done through modern algorithms and the highest level where the encryption is added is on the transport layer. All the algorithms used in this layer provide at least the following features:
Authentication: This feature allows you to verify the origin of a message
Integrity: This feature gives you proof that the content of the message wasn't changed on its way from the origin
The final mission of the encryption algorithms is to provide you with a security layer so that you can interchange or store sensitive data without having to worry about someone stealing your information...