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Decipher the message knowing that it was encrypted using a Vernam cipher with keys U = ( 3 , 5 ) and V = (
Decipher the message
knowing that it was encrypted using a Vernam cipher with keys U and V
Decrypt the message
AVGDA VAGVA VXAAF AFAVF DVAA
knowing that it was encoded using the key
A D F G V X
A I W O U L D
D E F R Y A
F B C G H
G J K M N
V P Q S T
X V X Z
P J Z M E P M J Z W E B Y
Encrypt
using an affine cipher with modulus and keys a and b
Compute
and
a mod and b a mod
SWORD
Decrypt
knowing that it was a homophonic encipherment with the keyword HUGO.
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