Cipher a message in ASCII and then decipher it

The idea behind Huffman coding is based upon the frequency of a symbol in a sequence. The symbol that is the most frequent in that sequence gets a new code that is very small, the least frequent symbol will get a code that is very long, so that when we’ll translate the input, we want to encode the most frequent symbols will take less space than …

Network Security Techniques of encryption and decryption. All the cipher codes in one place.

Simple encapsulation library for [Crypto](https://github.com/rweather/arduinolibs/tree/master/libraries/Crypto) library, used for encrypting and decrypting with ChaCha20 and Poly1305 algorithms.