This. Kudos to you for carving yourself out a neat and creative idea here on steemit, where seemingly it is "contests galore," but most get a bit boring lol. This is unique and also helps teach people a new skill! I'm omw to the encryptor now :) . And here's my message! (Let's hope that worked. Just an aside--the "public key" only worked when I copied and pasted EVERYTHING, including the text "---Begin Public Key---" fyi.

DOSZvB1bb9XKmbCgZskBsyIuiSaMZ15yI7JU1EBJZy3E9VGGagGZiWJWB+UG7+2L0PxhsFHfGXbh0grgr/QPebBjnDQo6PXM8U/ComYET3tj70xZSritsGEigEayK53yMMf9tzjsIad1iI+slFKcQd7BOKJk5gg58YP41zsDFVM=

Very cool!