big_puzzle.txt

The following wordsearch grid contains some Christmas words. Clues run either left-to-right or top-to-bottom.
BUT: they've been encrypted! For each clue N+1, the grid is Vigenere-encrypted using clue N as the key.
For example, the first two rows of the grid when decrypted with the key EXAMPLE would be:
X R B X P Y A M M N I G V
S S A E N I D B M D H U C

The first clue is "CHRISTMAS". Find the next clue, and the next, and so on until you find CHRISTMAS in the grid.
As a bonus, each clue has a RED HERRING somewhere else in the grid.

T U B L A N W I P N W R K
O O D E B T S X I G H I N
N M L O E A A L B D S E H
I B K D E P D C I I O D L
T A F M R H A M D J J V H
W T N H N P X O U A G S Q
P E Y R M W E H M V E B I
U M B W A Z B S A W P E T
R T S I B L I O Y E Y J B
R H I Y B K F N E U B A V
G M P W B Y A N J I K A N
N U K Z W S E H R V R H S
L I O L Q R M I A K E M R

small_puzzle.txt

The following wordsearch grid contains some Christmas words. Clues run either left-to-right or top-to-bottom.
BUT: they've been encrypted! For each clue N+1, the grid is encrypted using the first letter of clue N as the key.
For example, the first two rows of the grid when decrypted with the key EXAMPLE would be:
L M E Q F M W E R R B
R U P Q Y O C P K D X

The first clue is "CHRISTMAS". Find the next clue, and the next, and so on until you find CHRISTMAS in the grid.
As a bonus, each clue has a RED HERRING somewhere else in the grid.

H I A M B I S A N N X
N Q L M U K Y L G Z T
U L H J H X V F L M D
U S O T B Z S O I Q E
X F Z I J M F C F V W
F S M K W A F A A L P
M R M S C M W X A M E
W D V A J V B D L M Z
F B C V I B U C D Z P
P Q V F W G H A O G I
A P I Z S E F C M Z E

Do you have a solution to this I can put in the Puzzlebomb Solutions?