| Date | User | Challenge | Score |
| Komasan_ | ProSign 3 | 100 | |
| kkon | SSH Keys | 35 | |
| Rybashka | Authenticated Handshake | 40 | |
| baselsadi | Diffusion through Permutation | 30 | |
| UncleBear | Hex | 5 | |
| mar_ven | Computing Shared Secrets | 30 | |
| mar_ven | Computing Public Values | 25 | |
| sheina906 | Gotta Go Fast | 40 | |
| heeheeheehar | Blinding Light | 120 | |
| LvKNnT | LWE Low Bits Message | 20 | |
| p23108 | RSA Decryption | 20 | |
| mar_ven | SSH Keys | 35 | |
| p23108 | Private Keys | 20 | |
| mar_ven | CERTainly not | 30 | |
| armandokumani | Modular Inverting | 25 | |
| Woodsman | Bytes and Big Integers | 10 | |
| armandokumani | Modular Arithmetic 2 | 20 | |
| baselsadi | Confusion through Substitution | 25 | |
| VThisZomzom | Chinese Remainder Theorem | 40 | |
| p23108 | Euler's Totient | 20 | |
| armandokumani | Modular Arithmetic 1 | 20 | |
| mar_ven | Privacy-Enhanced Mail? | 25 | |
| armandokumani | Greatest Common Divisor | 15 | |
| kkon | CERTainly not | 30 | |
| armandokumani | Extended GCD | 20 | |
| gk24msc | Legendre Symbol | 35 | |
| ymoe3 | Passwords as Keys | 50 | |
| p23108 | Public Keys | 15 | |
| kkon | Privacy-Enhanced Mail? | 25 | |
| 0Drakos | Hex | 5 | |
| p23108 | Modular Exponentiation | 10 | |
| LvKNnT | LWE High Bits Message | 15 | |
| baselsadi | Round Keys | 20 | |
| 0Drakos | ASCII | 5 | |
| liya | Keyed Permutations | 5 | |
| nmcrypto | Background Reading | 5 | |
| Virtopeanu | RSA Decryption | 20 | |
| liya | Extended GCD | 20 | |
| kkon | Lemur XOR | 40 | |
| baselsadi | Structure of AES | 15 | |
| Virtopeanu | Private Keys | 20 | |
| alsh3ath | You either know, XOR you don't | 30 | |
| ymoe3 | Modes of Operation Starter | 15 | |
| Virtopeanu | Euler's Totient | 20 | |
| hmmm | Great Snakes | 3 | |
| 0Drakos | Great Snakes | 3 | |
| Woodsman | Base64 | 10 | |
| hmmm | Finding Flags | 2 | |
| 0Drakos | Finding Flags | 2 | |
| Virtopeanu | Public Keys | 15 |
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