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)

1. A variant of the Vigenère cipher that uses only ten different cipher alphabets, corresponding to the digits 0 to 9.