| Date | User | Challenge | Score |
| Miguel_ACN29 | Modes of Operation Starter | 15 | |
| khansanaila | RSA Decryption | 20 | |
| twosixtech | XOR Properties | 15 | |
| peepoo1234 | You either know, XOR you don't | 30 | |
| khansanaila | Private Keys | 20 | |
| khansanaila | Euler's Totient | 20 | |
| khansanaila | Public Keys | 15 | |
| khansanaila | Modular Exponentiation | 10 | |
| khanyz | Private Keys | 20 | |
| khanyz | Euler's Totient | 20 | |
| khanyz | Public Keys | 15 | |
| wazza | Finding Flags | 2 | |
| khanyz | Modular Exponentiation | 10 | |
| twosixtech | XOR Starter | 10 | |
| marhan | Greatest Common Divisor | 15 | |
| hikaruOuyama | Finding Flags | 2 | |
| twosixtech | Encoding Challenge | 40 | |
| shri69 | Resisting Bruteforce | 10 | |
| yoavb | Flipping Cookie | 60 | |
| Putri | RSA Decryption | 20 | |
| mil_i | Great Snakes | 3 | |
| M0hi5h18 | Greatest Common Divisor | 15 | |
| Putri | Private Keys | 20 | |
| Folgee | ASCII | 5 | |
| theheff | XOR Properties | 15 | |
| Putri | Euler's Totient | 20 | |
| Keke1024 | Bytes and Big Integers | 10 | |
| Keke1024 | Base64 | 10 | |
| Keke1024 | Hex | 5 | |
| Keke1024 | ASCII | 5 | |
| satanic | Privacy-Enhanced Mail? | 25 | |
| whoamics | Great Snakes | 3 | |
| artem_1 | Greatest Common Divisor | 15 | |
| Keke1024 | Great Snakes | 3 | |
| whoamics | Finding Flags | 2 | |
| Putri | Public Keys | 15 | |
| Putri | Modular Exponentiation | 10 | |
| satanic | Modular Inverting | 25 | |
| Keke1024 | Finding Flags | 2 | |
| katty_wonder | Great Snakes | 3 | |
| Icaka1337 | ASCII | 5 | |
| mopedist | Marin's Secrets | 50 | |
| Houd1n1 | Finding Flags | 2 | |
| demiel | Structure of AES | 15 | |
| Miron | Hex | 5 | |
| mopedist | Infinite Descent | 50 | |
| shylynn | Bytes and Big Integers | 10 | |
| mopedist | Endless Emails | 150 | |
| shylynn | Base64 | 10 | |
| shylynn | Hex | 5 |
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