| Date | User | Challenge | Score |
| cstone031 | Greatest Common Divisor | 15 | |
| cstone031 | Finding Flags | 2 | |
| ReyChinchano | XOR Starter | 10 | |
| NightBun | Modes of Operation Starter | 15 | |
| Huluobo | ASCII | 5 | |
| BoyInDaBlue | Favourite byte | 20 | |
| wily | Base64 | 10 | |
| wily | Hex | 5 | |
| Mb3gems | Passwords as Keys | 50 | |
| wily | ASCII | 5 | |
| ghx312 | Logon Zero | 80 | |
| CalculatedRisk | Base64 | 10 | |
| wily | Great Snakes | 3 | |
| CalculatedRisk | Hex | 5 | |
| Krisna | Network Attacks | 5 | |
| NightBun | Resisting Bruteforce | 10 | |
| ApparentlyDirt | Chinese Remainder Theorem | 40 | |
| Connorm25 | ECB Oracle | 60 | |
| CalculatedRisk | ASCII | 5 | |
| wily | Finding Flags | 2 | |
| sunny272118 | Passwords as Keys | 50 | |
| CalculatedRisk | Great Snakes | 3 | |
| CalculatedRisk | Finding Flags | 2 | |
| NightBun | Keyed Permutations | 5 | |
| Mb3gems | Modes of Operation Starter | 15 | |
| Hadeslia | Modulus Inutilis | 50 | |
| useless | Bytes and Big Integers | 10 | |
| Mb3gems | Bringing It All Together | 50 | |
| Connorm25 | Passwords as Keys | 50 | |
| Vision_ | Modular Binomials | 80 | |
| sunny272118 | Modes of Operation Starter | 15 | |
| Hadeslia | Salty | 20 | |
| ReyChinchano | Bytes and Big Integers | 10 | |
| Connorm25 | Modes of Operation Starter | 15 | |
| ShadowJesus | Base64 | 10 | |
| Mb3gems | Diffusion through Permutation | 30 | |
| Connorm25 | Bringing It All Together | 50 | |
| blackjack28 | Hex | 5 | |
| ShadowJesus | Hex | 5 | |
| Mb3gems | Confusion through Substitution | 25 | |
| blackjack28 | ASCII | 5 | |
| Hadeslia | Monoprime | 30 | |
| ReyChinchano | Base64 | 10 | |
| Mb3gems | Round Keys | 20 | |
| blackjack28 | Great Snakes | 3 | |
| Hadeslia | Factoring | 15 | |
| ShadowJesus | ASCII | 5 | |
| ReyChinchano | Hex | 5 | |
| Mb3gems | Structure of AES | 15 | |
| Hadeslia | RSA Signatures | 25 |
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