| Mathematics | Roll your Own | 125 | |
| Hash Functions | No Difference | 175 | |
| Hash Functions | MD0 | 80 | |
| RSA | RSA Backdoor Viability | 175 | |
| Hash Functions | Twin Keys | 100 | |
| Misc | Nothing Up My Sleeve | 150 | |
| Misc | Toshi's Treasure | 150 | |
| Misc | Armory | 100 | |
| Misc | Lo-Hi Card Game | 120 | |
| Hash Functions | PriMeD5 | 100 | |
| Misc | Trust Games | 150 | |
| Mathematics | Real Eisenstein | 150 | |
| Mathematics | Unencryptable | 125 | |
| RSA | Vote for Pedro | 150 | |
| RSA | Blinding Light | 120 | |
| General | You either know, XOR you don't | 30 | |
| General | Lemur XOR | 40 | |
| Mathematics | Prime and Prejudice | 200 | |
| General | XOR Starter | 10 | |
| Introduction | Network Attacks | 5 | |
| Introduction | Great Snakes | 3 | |
| Introduction | Finding Flags | 2 | |
| Diffie-Hellman | Static Client 2 | 120 | |
| RSA | Endless Emails | 150 | |
| RSA | Marin's Secrets | 50 | |
| RSA | Fast Primes | 75 | |
| Mathematics | Modular Binomials | 80 | |
| Misc | Gotta Go Fast | 40 | |
| Misc | No Leaks | 100 | |
| RSA | Ron was Wrong, Whit is Right | 90 | |
| RSA | Private Keys | 20 | |
| Lattices | Gaussian Reduction | 50 | |
| Mathematics | Chinese Remainder Theorem | 40 | |
| Hash Functions | Collider | 50 | |
| Mathematics | Successive Powers | 60 | |
| Mathematics | Legendre Symbol | 35 | |
| Mathematics | Modular Square Root | 35 | |
| Mathematics | Quadratic Residues | 25 | |
| Mathematics | Adrien's Signs | 80 | |
| General | Bytes and Big Integers | 10 | |
| General | Base64 | 10 | |
| General | Hex | 5 | |
| General | ASCII | 5 | |
| General | Modular Inverting | 25 | |
| General | Modular Arithmetic 2 | 20 | |
| General | Modular Arithmetic 1 | 20 | |
| General | Extended GCD | 20 | |
| General | Greatest Common Divisor | 15 | |
| General | CERTainly not | 30 | |
| Diffie-Hellman | Computing Shared Secrets | 30 | |
| Diffie-Hellman | Computing Public Values | 25 | |
| Diffie-Hellman | Generators of Groups | 20 | |
| Diffie-Hellman | Additive | 70 | |
| Diffie-Hellman | Static Client | 100 | |
| Diffie-Hellman | Export-grade | 100 | |
| Diffie-Hellman | Parameter Injection | 60 | |
| Diffie-Hellman | Deriving Symmetric Keys | 40 | |
| Diffie-Hellman | Working with Fields | 10 |
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