Core Java Secuirity Algorithm: this module contains Encryption decryptuon algorithm with Strategy Pattern
Example 1: reading and writing to files; the arguments are: -mode enc -in road_to_treasure.txt -out protected.txt -key 5 -alg unicode
This command must get data from road_to_treasure.txt, encrypt the data with the key of 5, create protected.txt, and write ciphertext into it.
Example 2: encryption with the unicode algorithm; the arguments are: -mode enc -key 5 -data "Welcome to hyperskill!" -alg unicode
\jqhtrj%yt%m~ujwxpnqq&
Example 3:decryption with the unicode algorithm; the arguments are: -key 5 -alg unicode -data "\jqhtrj%yt%m~ujwxpnqq&" -mode dec
Welcome to hyperskill!
Example 4: encryption with the shift algorithm; the arguments are: -key 5 -alg shift -data "Welcome to hyperskill!" -mode enc
Bjqhtrj yt mdujwxpnqq!
Example 5:decryption with the shift algorithm; the arguments are: -key 5 -alg shift -data "Bjqhtrj yt mdujwxpnqq!" -mode dec
Welcome to hyperskill!