| Diffie-Hellman | Script Kiddie | 70 | |
| Hash Functions | Collider | 50 | |
| Misc | Gotta Go Fast | 40 | |
| Lattices | Gram Schmidt | 30 | |
| Lattices | Find the Lattice | 100 | |
| Misc | Bit by Bit | 100 | |
| Misc | Armory | 100 | |
| Crypto on the Web | JSON in JSON | 40 | |
| Symmetric Ciphers | Lazy CBC | 60 | |
| Symmetric Ciphers | ECB CBC WTF | 55 | |
| Symmetric Ciphers | Triple DES | 60 | |
| Symmetric Ciphers | ECB Oracle | 60 | |
| Symmetric Ciphers | Flipping Cookie | 60 | |
| Symmetric Ciphers | Bean Counter | 60 | |
| Symmetric Ciphers | Passwords as Keys | 50 | |
| Symmetric Ciphers | Resisting Bruteforce | 10 | |
| RSA | Modular Exponentiation | 10 | |
| General | XOR Starter | 10 | |
| Introduction | Network Attacks | 5 | |
| General | Encoding Challenge | 40 | |
| General | Bytes and Big Integers | 10 | |
| General | Base64 | 10 | |
| General | Hex | 5 | |
| General | ASCII | 5 | |
| Introduction | Great Snakes | 3 | |
| Introduction | Finding Flags | 2 |
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