| Mathematics | Successive Powers | 60 | |
| Mathematics | Quadratic Residues | 25 | |
| Mathematics | Legendre Symbol | 35 | |
| Mathematics | Chinese Remainder Theorem | 40 | |
| Lattices | From Private to Public Key LWE | 25 | |
| Lattices | LWE Intro | 10 | |
| Lattices | LWE Background | 5 | |
| Lattices | Noise Free | 40 | |
| Hash Functions | MD0 | 80 | |
| Hash Functions | WOTS Up 2 | 90 | |
| Hash Functions | Mixed Up | 120 | |
| Hash Functions | Jack's Birthday Confusion | 30 | |
| Hash Functions | Jack's Birthday Hash | 20 | |
| Mathematics | Modular Binomials | 80 | |
| Symmetric Ciphers | Bringing It All Together | 50 | |
| Symmetric Ciphers | Logon Zero | 80 | |
| Symmetric Ciphers | Dancing Queen | 120 | |
| RSA | Bespoke Padding | 100 | |
| RSA | Null or Never | 100 | |
| RSA | Vote for Pedro | 150 | |
| RSA | Blinding Light | 120 | |
| RSA | Let's Decrypt | 80 | |
| RSA | Everything is Still Big | 100 | |
| RSA | Crossed Wires | 100 | |
| General | SSH Keys | 35 | |
| General | Favourite byte | 20 | |
| General | XOR Starter | 10 | |
| General | Bytes and Big Integers | 10 | |
| General | Base64 | 10 | |
| General | Hex | 5 | |
| General | ASCII | 5 | |
| Introduction | Network Attacks | 5 | |
| Introduction | Great Snakes | 3 | |
| Introduction | Finding Flags | 2 |
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