Playing around with : SHA1 hashes, Base64 encodings, AES128 encryptions & RestClient Start execution with : ruby Main.rb RUby version : ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-linux] Gems used : 'webmock' 'rest-client' 'openssl' 'digest' 'base64'