Text this: A web demo suite for basic number theory concepts used in symmetric cryptography (AES)

__    __   _    _      _____     ___      ______  
\ \\ / // | || | ||   / ___//   / _ \\   /_   _// 
 \ \/ //  | || | ||   \___ \\  / //\ \\    | ||   
  \  //   | \\_/ ||   /    // |  ___  ||  _| ||   
   \//     \____//   /____//  |_||  |_|| /__//    
    `       `---`   `-----`   `-`   `-`  `--`