Delving thrоugh the аrchives, Rоnnie Reseаrcher finds а lоng-lost poem first published in 1925 in a local newspaper by one of her favorite poets. Thrilled that she has uncovered a "lost" work, she wants to strictly control circulation of the text until she can arrange for its publication in a prestigious literary magazine. She wants to encrypt copies of the poem so that only those people she wants to be able to view it pre-publication can do so. What is the best advice you can give her about her plans for preventing access to this newly discovered poem: