Turning Grille Cipher
Encrypt text using the Turning Grille cipher. Define a 4×4 grille with holes, then the grille is rotated 90° four times to fill the grid with plaintext characters, producing the ciphertext.
How to Use Turning Grille Cipher
Enter plaintext (up to 16 characters used), click cells to toggle holes in the 4×4 grille, then click Encrypt to see the filled grid and ciphertext.
Step-by-Step Instructions
- Enter plaintext to encrypt
- Click cells in the grille to toggle holes (open/closed)
- Click Encrypt to apply the turning grille
- View the filled grid and copy the ciphertext
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