Explore Challenges
M-138 — Part 2 Level 2
by K. Schmeh, published on 2014-12-23
This is part 2 in a series about the M-138. Part 2 is a partly-known plaintext challenge (48/100).
This is part 2 in a series about the M-138. Part 2 is a partly-known plaintext challenge (48/100).