| Date | User | Challenge | Score |
| LottesWill | Great Snakes | 3 | |
| yourlocalramen | RSA Decryption | 20 | |
| yourlocalramen | Private Keys | 20 | |
| ApfelStrudel | Size and Basis | 15 | |
| karoldus | Pad Thai | 80 | |
| yourlocalramen | Euler's Totient | 20 | |
| WyattZhang | Extended GCD | 20 | |
| yourlocalramen | Public Keys | 15 | |
| Turgon | Great Snakes | 3 | |
| ApfelStrudel | Vectors | 10 | |
| fjukh7872 | Curves and Logs | 40 | |
| Turgon | Finding Flags | 2 | |
| yourlocalramen | Modular Exponentiation | 10 | |
| ugp6 | You either know, XOR you don't | 30 | |
| yourlocalramen | Bean Counter | 60 | |
| yourlocalramen | Symmetry | 50 | |
| yourlocalramen | Flipping Cookie | 60 | |
| Jankoseu | Merkle Trees | 25 | |
| fjukh7872 | Scalar Multiplication | 35 | |
| annalisa | ECB Oracle | 60 | |
| danirodg | Adrien's Signs | 80 | |
| Aline123 | Modular Exponentiation | 10 | |
| yourlocalramen | ECB CBC WTF | 55 | |
| luffy84 | Broken RSA | 100 | |
| yourlocalramen | ECB Oracle | 60 | |
| ugp6 | Export-grade | 100 | |
| calvernaz | No Random, No Bias | 120 | |
| ugp6 | Parameter Injection | 60 | |
| yourlocalramen | Passwords as Keys | 50 | |
| manuel_racle | Transparency | 50 | |
| yourlocalramen | Modes of Operation Starter | 15 | |
| ugp6 | Deriving Symmetric Keys | 40 | |
| ugp6 | Computing Shared Secrets | 30 | |
| ugp6 | Computing Public Values | 25 | |
| fjukh7872 | Point Addition | 30 | |
| ApfelStrudel | ZKP Introduction | 5 | |
| ugp6 | Generators of Groups | 20 | |
| TSL | Encoding Challenge | 40 | |
| ugp6 | Working with Fields | 10 | |
| ugp6 | Modulus Inutilis | 50 | |
| manuel_racle | SSH Keys | 35 | |
| MilanP06 | Export-grade | 100 | |
| Jankoseu | Mixed Up | 120 | |
| WyattZhang | Greatest Common Divisor | 15 | |
| manuel_racle | CERTainly not | 30 | |
| Sixmix10 | Chinese Remainder Theorem | 40 | |
| MilanP06 | Parameter Injection | 60 | |
| MilanP06 | Deriving Symmetric Keys | 40 | |
| danirodg | Chinese Remainder Theorem | 40 | |
| danirodg | Modular Square Root | 35 |
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