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1
Enigma Stigma
redCola
2
Low Collision Level
3
Playfair
4
The Fourth Remains Unbroken
5
Symmetrical In Nature
6
Slaves To The Machine
7
Caesar Cypher
8
Hidden Writings
9
Unreadable
10
Scytale
11
Broken Back
12
Man In The Middle
13
Rotation 13
