Joined:
Rank: #2006
Level: 1
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| Introduction | Finding Flags | 2 | |
| Symmetric Ciphers | ECB Oracle | 60 | |
| Symmetric Ciphers | Flipping Cookie | 60 | |
| Symmetric Ciphers | Keyed Permutations | 5 | |
| Symmetric Ciphers | ECB CBC WTF | 55 |
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