Encode and Decode secret messages using special keys!
There are 171,122,452,428,141,311,372,468,338,881,272,839,092,270,544,893,520,369,648,040,923,257,279,754,140,647,424,000,000,000,000,000 possible key combinations (or 171 untrigintillion). This is enought key combinations for everyone in the world to have 24,446,064,630,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 ( or 24 octivigintillion) each!
