| Date | User | Challenge | Score |
| radare | Oh SNAP | 120 | |
| mjallstart | Modular Binomials | 80 | |
| OKlllng | Favourite byte | 20 | |
| anarcheuz | OR Proof | 75 | |
| mjallstart | Adrien's Signs | 80 | |
| marcofireball84 | Confusion through Substitution | 25 | |
| Dimalano | The Matrix | 75 | |
| jurbinaa | Network Attacks | 5 | |
| MolinaAlfa3000 | ASCII | 5 | |
| Dimalano | Script Kiddie | 70 | |
| Dimalano | Static Client 2 | 120 | |
| Dimalano | Additive | 70 | |
| marcofireball84 | Round Keys | 20 | |
| Dimalano | Static Client | 100 | |
| Dimalano | Export-grade | 100 | |
| Dimalano | Parameter Injection | 60 | |
| Dimalano | Deriving Symmetric Keys | 40 | |
| Dimalano | Computing Shared Secrets | 30 | |
| Dimalano | Computing Public Values | 25 | |
| Dimalano | Generators of Groups | 20 | |
| Dimalano | Working with Fields | 10 | |
| Dimalano | Let's Decrypt Again | 175 | |
| Dimalano | Vote for Pedro | 150 | |
| marcofireball84 | Structure of AES | 15 | |
| Dimalano | Let's Decrypt | 80 | |
| 3bo | Structure of AES | 15 | |
| Dimalano | Signing Server | 60 | |
| Dgcg | RSA Backdoor Viability | 175 | |
| Dimalano | Null or Never | 100 | |
| maurop1988 | You either know, XOR you don't | 30 | |
| Dimalano | Bespoke Padding | 100 | |
| maurop1988 | Favourite byte | 20 | |
| Dgcg | Ron was Wrong, Whit is Right | 90 | |
| Satya_Yadav10 | You either know, XOR you don't | 30 | |
| Dimalano | RSA Backdoor Viability | 175 | |
| maurop1988 | XOR Properties | 15 | |
| Dgcg | Fast Primes | 75 | |
| maurop1988 | XOR Starter | 10 | |
| Satya_Yadav10 | Favourite byte | 20 | |
| Dimalano | Ron was Wrong, Whit is Right | 90 | |
| maurop1988 | Bytes and Big Integers | 10 | |
| 3bo | Resisting Bruteforce | 10 | |
| maurop1988 | Base64 | 10 | |
| PatrickL_SC | MD0 | 80 | |
| maurop1988 | Hex | 5 | |
| Dimalano | Marin's Secrets | 50 | |
| Dimalano | Infinite Descent | 50 | |
| maurop1988 | ASCII | 5 | |
| Lakeman | Finding Flags | 2 | |
| 3bo | Keyed Permutations | 5 |
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