| Date | User | Challenge | Score |
| joao_nogueira | Hex | 5 | |
| joao_nogueira | ASCII | 5 | |
| ism | You either know, XOR you don't | 30 | |
| 2noob | ASCII | 5 | |
| squ4r00t | Export-grade | 100 | |
| 2noob | Great Snakes | 3 | |
| joao_nogueira | Great Snakes | 3 | |
| 2noob | Finding Flags | 2 | |
| joao_nogueira | Finding Flags | 2 | |
| Bukhari122 | Bytes and Big Integers | 10 | |
| jordanlanham52 | Real Curve Crypto | 200 | |
| Lelle | Bruce Schneier's Password: Part 2 | 250 | |
| jordanlanham52 | Hamiltonicity (CryptoHack) | 0 | |
| ZacH123456789 | XOR Properties | 15 | |
| jordanlanham52 | Logon Zero | 80 | |
| jordanlanham52 | A Twisted Mind | 80 | |
| jordanlanham52 | Dancing Queen | 120 | |
| jordanlanham52 | Micro Transmissions | 120 | |
| jordanlanham52 | ECB Oracle | 60 | |
| CapJD | Bytes and Big Integers | 10 | |
| jordanlanham52 | The Matrix Reloaded | 100 | |
| jordanlanham52 | Moving Problems | 150 | |
| jordanlanham52 | Static Client 2 | 120 | |
| jordanlanham52 | Blinding Light | 120 | |
| jordanlanham52 | Let's Decrypt | 80 | |
| jordanlanham52 | Signing Server | 60 | |
| jordanlanham52 | Static Client | 100 | |
| CapJD | Base64 | 10 | |
| jordanlanham52 | Bespoke Padding | 100 | |
| jordanlanham52 | Null or Never | 100 | |
| A1cov3 | Great Snakes | 3 | |
| jordanlanham52 | RSA Backdoor Viability | 175 | |
| jordanlanham52 | Ron was Wrong, Whit is Right | 90 | |
| jordanlanham52 | Fast Primes | 75 | |
| jordanlanham52 | Marin's Secrets | 50 | |
| jordanlanham52 | Infinite Descent | 50 | |
| jordanlanham52 | Everything is Still Big | 100 | |
| squ4r00t | Parameter Injection | 60 | |
| jordanlanham52 | Curveball | 100 | |
| NatsuGwada | Passwords as Keys | 50 | |
| jordanlanham52 | ProSign 3 | 100 | |
| jordanlanham52 | No Difference | 175 | |
| jordanlanham52 | Edwards Goes Degenerate | 100 | |
| jordanlanham52 | Oofbleck (Firebird Internal CTF) | 0 | |
| jordanlanham52 | Pairing-Based Cryptography | 50 | |
| jordanlanham52 | Modular Square Root | 35 | |
| GeorgeSor | Modular Square Root | 35 | |
| jordanlanham52 | Real Eisenstein | 150 | |
| jordanlanham52 | Cofactor Cofantasy | 150 | |
| jordanlanham52 | Unencryptable | 125 |
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