Gronsfeld cipher
English
Etymology
The cipher's invention was attributed by Gaspar Schott to Count Gronsfeld (Josse Maximilaan van Gronsveld né van Bronckhorst).
Noun
Gronsfeld cipher (plural Gronsfeld ciphers)
- A variant of the Vigenère cipher that uses only ten different cipher alphabets, corresponding to the digits 0 to 9.