| Date | User | Challenge | Score |
| radoslaw_kasprzk | Infinite Descent | 50 | |
| wendy4747 | Bean Counter | 60 | |
| radoslaw_kasprzk | Everything is Big | 70 | |
| SmolYulia | No Way JOSE | 20 | |
| radoslaw_kasprzk | Modulus Inutilis | 50 | |
| radoslaw_kasprzk | Salty | 20 | |
| Mejkl | Saying Hello | 20 | |
| student_david | Quadratic Residues | 25 | |
| radoslaw_kasprzk | Manyprime | 40 | |
| student_david | Modular Inverting | 25 | |
| mkrajevsky | Everything is Big | 70 | |
| student_david | Modular Arithmetic 2 | 20 | |
| student_david | Modular Arithmetic 1 | 20 | |
| student_david | Extended GCD | 20 | |
| radoslaw_kasprzk | Square Eyes | 35 | |
| radoslaw_kasprzk | Monoprime | 30 | |
| student_david | Greatest Common Divisor | 15 | |
| student_david | You either know, XOR you don't | 30 | |
| radoslaw_kasprzk | Inferius Prime | 30 | |
| student_david | Favourite byte | 20 | |
| radoslaw_kasprzk | Factoring | 15 | |
| student_david | XOR Properties | 15 | |
| radoslaw_kasprzk | RSA Signatures | 25 | |
| SmolYulia | JWT Sessions | 10 | |
| Aeneas7 | Saying Hello | 20 | |
| student_david | XOR Starter | 10 | |
| radoslaw_kasprzk | RSA Decryption | 20 | |
| student_david | Bytes and Big Integers | 10 | |
| radoslaw_kasprzk | Private Keys | 20 | |
| student_david | Base64 | 10 | |
| radoslaw_kasprzk | Euler's Totient | 20 | |
| student_david | Hex | 5 | |
| radoslaw_kasprzk | Public Keys | 15 | |
| student_david | ASCII | 5 | |
| Patonymous | Modes of Operation Starter | 15 | |
| student_david | Great Snakes | 3 | |
| jerwas | JSON in JSON | 40 | |
| radoslaw_kasprzk | Modular Exponentiation | 10 | |
| Patonymous | Bringing It All Together | 50 | |
| Aeneas7 | TLS Handshake | 15 | |
| Kammulus | Null or Never | 100 | |
| Kammulus | Bespoke Padding | 100 | |
| Kammulus | RSA Backdoor Viability | 175 | |
| student_david | Finding Flags | 2 | |
| Kammulus | Ron was Wrong, Whit is Right | 90 | |
| Kammulus | Marin's Secrets | 50 | |
| Kammulus | Infinite Descent | 50 | |
| Kammulus | Everything is Still Big | 100 | |
| Aeneas7 | Sharks on the Wire | 10 | |
| Kammulus | Endless Emails | 150 |
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