| Date | User | Challenge | Score |
| MatWoj99 | Manyprime | 40 | |
| nikiolga9 | Salty | 20 | |
| Groucho | Base64 | 10 | |
| fadziutto | Manyprime | 40 | |
| Arpitinhere | Public Keys | 15 | |
| MatWoj99 | Square Eyes | 35 | |
| Pydx | XOR Starter | 10 | |
| nikiolga9 | RSA Signatures | 25 | |
| doublejue | Adrien's Signs | 80 | |
| MatWoj99 | Monoprime | 30 | |
| Marwa_Ayman | Round Keys | 20 | |
| MatWoj99 | Inferius Prime | 30 | |
| fadziutto | Square Eyes | 35 | |
| fadziutto | Monoprime | 30 | |
| InsightRC | XOR Properties | 15 | |
| nikiolga9 | Adrien's Signs | 80 | |
| andreika47 | You either know, XOR you don't | 30 | |
| fadziutto | Inferius Prime | 30 | |
| adanaboshnde | Diffusion through Permutation | 30 | |
| andreika47 | Favourite byte | 20 | |
| fadziutto | Factoring | 15 | |
| radare | ECB CBC WTF | 55 | |
| hedge_hedgehog | ECB CBC WTF | 55 | |
| nikiolga9 | Token Appreciation | 5 | |
| wikinat0r | Quadratic Residues | 25 | |
| radare | Passwords as Keys | 50 | |
| adanaboshnde | Confusion through Substitution | 25 | |
| nikiolga9 | Resisting Bruteforce | 10 | |
| Cuze | Finding Flags | 2 | |
| doublejue | Chinese Remainder Theorem | 40 | |
| TURB0 | XOR Properties | 15 | |
| MatWoj99 | Factoring | 15 | |
| Adem0 | Null or Never | 100 | |
| nikiolga9 | Keyed Permutations | 5 | |
| Pydx | Bytes and Big Integers | 10 | |
| fadziutto | RSA Signatures | 25 | |
| adanaboshnde | Round Keys | 20 | |
| radare | Modes of Operation Starter | 15 | |
| doublejue | Modular Square Root | 35 | |
| fadziutto | RSA Decryption | 20 | |
| kernel | Hex | 5 | |
| ali125 | Modular Square Root | 35 | |
| fadziutto | Private Keys | 20 | |
| Feedback325 | Base64 | 10 | |
| adanaboshnde | Structure of AES | 15 | |
| fadziutto | Euler's Totient | 20 | |
| LpAryan | Finding Flags | 2 | |
| Adem0 | Let's Decrypt | 80 | |
| 2518572252 | ASCII | 5 | |
| fadziutto | Public Keys | 15 |
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