Welk woord?

Definitie: “1. In cryptography, a symbol or sequence of symbols which controls the operations of encryption and decryption. 2. As it pertains to the Headline puzzle, a word that is used in the process of creating the mixed alphabet. This word must not contain any repeated letters. See hat.”

Eerste letter: K

Antwoord:  

Van welk woord is dit de definitie?

'IQ'-score: 0