Vigenere, key word is key
Youf, bhw fargvm uz bnvq xjh (cbp mlfr ur obpodk ig’v flr lcaq fhvqs) mf hps lqrb rzi mxtc lqrb, dzh gakffqea le sax qbq leer arr. Pcg fteeh m lvgv gayejkqvr mjof koh qqiqxf ha mdq oqeqbpu lqrbhe se pcg ftag dz yalrcwqn nveyzivwaz ia wti cnbnxq?