411 REFERENCE · Wiktionary
Gronsfeld cipher
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
The cipher's invention was attributed by Gaspar Schott to Count Gronsfeld (Josse Maximilaan van Gronsveld né van Bronckhorst).
Noun
A variant of the Vigenère cipher that uses only ten different cipher alphabets, corresponding to the digits 0 to 9.
en eponyms