## Homomorphic Encryption with Images

A model for a homomorphic encryption system. The purple arrow represents a computation that can be done on the plaintext or the ciphertext. Homomorphic encryption is a form of encryption that allows you to do computations on encrypted data! The image above provides a simple model for this. Suppose changing a capital letter (A) to its lowercase version (a) is the encryption algorithm. In this system, we can do computation on the encrypted letter....