1) Decrypt the following message, which was enciphered using the Vigen'ere cipher with encrypting key SECRET: WBRCS LAZGJ MGKMF V.
2) Cryptanalyze the given ciphertext, which was encrypted using a Vigen'ere cipher.
S I I WZ F D I B N H U D E U WQ J H P J K R N K
R L A C T WX B I M MHM P J O F U F P WV E O G
P Q P E L V P Z Y D A X I A G P I TMA X F S SS
GWP BW I WO F OT FWV F J S X P L B J O T P
S U D I J J X F N R F P A F G R P S X I WX J O R
P P X S Q I