| Introduction | Great Snakes | 3 | |
| Introduction | Finding Flags | 2 | |
| Hash Functions | Invariant | 250 | |
| Hash Functions | Mixed Up | 120 | |
| Hash Functions | MD0 | 80 | |
| Hash Functions | No Difference | 175 | |
| Hash Functions | Twin Keys | 100 | |
| Hash Functions | PriMeD5 | 100 | |
| Hash Functions | Hash Stuffing | 50 | |
| Hash Functions | Collider | 50 | |
| Mathematics | Adrien's Signs | 80 | |
| Mathematics | Chinese Remainder Theorem | 40 | |
| Elliptic Curves | No Random, No Bias | 120 | |
| Mathematics | No Way Back Home | 100 | |
| Elliptic Curves | Edwards Goes Degenerate | 100 | |
| Elliptic Curves | Digestive | 60 | |
| Elliptic Curves | ProSign 3 | 100 | |
| Elliptic Curves | Micro Transmissions | 120 | |
| Elliptic Curves | Moving Problems | 150 | |
| Elliptic Curves | Elliptic Nodes | 150 | |
| Elliptic Curves | Curveball | 100 | |
| Symmetric Ciphers | Dancing Queen | 120 | |
| General | Encoding Challenge | 40 | |
| RSA | Vote for Pedro | 150 | |
| RSA | Signing Server | 60 | |
| RSA | Null or Never | 100 | |
| RSA | Manyprime | 40 | |
| RSA | Square Eyes | 35 | |
| RSA | Inferius Prime | 30 | |
| RSA | Bespoke Padding | 100 | |
| RSA | Ron was Wrong, Whit is Right | 90 | |
| RSA | Marin's Secrets | 50 | |
| RSA | Infinite Descent | 50 | |
| RSA | Everything is Still Big | 100 | |
| RSA | Everything is Big | 70 | |
| RSA | Crossed Wires | 100 | |
| RSA | Endless Emails | 150 | |
| RSA | Factoring | 15 | |
| RSA | RSA Decryption | 20 | |
| RSA | Modular Exponentiation | 10 | |
| RSA | Private Keys | 20 | |
| RSA | Euler's Totient | 20 | |
| RSA | Public Keys | 15 | |
| Mathematics | Modular Square Root | 35 | |
| Mathematics | Legendre Symbol | 35 | |
| Mathematics | Quadratic Residues | 25 | |
| General | Modular Inverting | 25 | |
| General | Modular Arithmetic 2 | 20 | |
| General | Modular Arithmetic 1 | 20 | |
| General | Extended GCD | 20 | |
| General | Greatest Common Divisor | 15 | |
| General | XOR Properties | 15 | |
| General | Favourite byte | 20 | |
| General | XOR Starter | 10 | |
| General | Base64 | 10 | |
| General | Hex | 5 | |
| General | ASCII | 5 |
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