| Date | User | Challenge | Score |
| Aircloud0030 | Quadratic Residues | 25 | |
| kcard4 | Bean Counter | 60 | |
| shhack96 | Smooth Criminal | 60 | |
| kcard4 | Symmetry | 50 | |
| sasytaco802 | RSA Signatures | 25 | |
| NOOR_MASOUD | Bytes and Big Integers | 10 | |
| cutiepie | Modular Square Root | 35 | |
| Aloutrance | Modes of Operation Starter | 15 | |
| user_nam | Favourite byte | 20 | |
| blackdevops | Finding Flags | 2 | |
| sasytaco802 | RSA Decryption | 20 | |
| Suisei | Secret Exponents | 60 | |
| sasytaco802 | Private Keys | 20 | |
| sasytaco802 | Euler's Totient | 20 | |
| sasytaco802 | Public Keys | 15 | |
| sasytaco802 | Modular Exponentiation | 10 | |
| Madarame | Invariant | 250 | |
| lilyjane | Encoding Challenge | 40 | |
| Aloutrance | Bringing It All Together | 50 | |
| afrdian | Structure of AES | 15 | |
| Tuananh | Bytes and Big Integers | 10 | |
| Tuananh | Base64 | 10 | |
| mahu | Export-grade | 100 | |
| kcard4 | Flipping Cookie | 60 | |
| Tuananh | Hex | 5 | |
| That11thHarmonic | Real Eisenstein | 150 | |
| solidus | Vectors | 10 | |
| Tuananh | ASCII | 5 | |
| nahejbrave | Bytes and Big Integers | 10 | |
| solidus | Size and Basis | 15 | |
| afrdian | Resisting Bruteforce | 10 | |
| user_nam | XOR Properties | 15 | |
| Thaimeo2006 | Endless Emails | 150 | |
| AESpider | CSIDH Key Exchange | 90 | |
| Madarame | Ticket Maestro | 200 | |
| Madarame | Ticket Maestro (CryptoHack) | 0 | |
| That11thHarmonic | Prime and Prejudice | 200 | |
| Kyle_0215 | Bean Counter | 60 | |
| argantara | RSA Decryption | 20 | |
| argantara | Private Keys | 20 | |
| arealsquirrel | Gotta Go Fast | 40 | |
| argantara | Euler's Totient | 20 | |
| argantara | Public Keys | 15 | |
| kilpom | You either know, XOR you don't | 30 | |
| argantara | Modular Exponentiation | 10 | |
| argantara | Greatest Common Divisor | 15 | |
| avyj7 | XOR Starter | 10 | |
| afrdian | Let's Decrypt Again | 175 | |
| lilyjane | ECB Oracle | 60 | |
| arealsquirrel | Gaussian Reduction | 50 |
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