Gronsfeld Cipher
The Gronsfeld cipher is a polyalphabetic cipher, a series of Caesar ciphers, where the shift is determined by numbers (between 0 and 9). It is similar to the Vigenère cipher, but the key uses digits instead of letters.
You must enter the plaintext.
Digital Key
You must enter the encryption key.
Cipher Mode
Alphabet Key
Enter a keyword, phrase or alphabet and the rest will be calculated for you.
Enter a keyword, phrase or alphabet and the rest will be calculated for you.
You must enter the ciphertext.