| Date | User | Challenge | Score |
| BonziSki | Modular Inverting | 25 | |
| Angeily | ASCII | 5 | |
| 0xSh4d0w6 | ASCII | 5 | |
| Aeneas7 | SIDH Key Exchange | 80 | |
| moe0l | Jeff's LFSR | 150 | |
| martonpe | Bringing It All Together | 50 | |
| 0xSh4d0w6 | Great Snakes | 3 | |
| glitchcat | Lazy CBC | 60 | |
| HashKselR | XOR Properties | 15 | |
| xfnx | Bruce Schneier's Password | 100 | |
| 0xSh4d0w6 | Finding Flags | 2 | |
| Yoshixi | Confusion through Substitution | 25 | |
| lowGround | Base64 | 10 | |
| moe0l | L-Win | 120 | |
| Angeily | Great Snakes | 3 | |
| AruRajaIblis | XOR Starter | 10 | |
| lowGround | Hex | 5 | |
| OKlllng | RSA Signatures | 25 | |
| xfnx | Armory | 100 | |
| lowGround | ASCII | 5 | |
| halliana | Merkle Trees | 25 | |
| hookpook | Factoring | 15 | |
| moe0l | Ticket Maestro | 200 | |
| m4n059 | Adrien's Signs | 80 | |
| xfnx | Bit by Bit | 100 | |
| HashKselR | XOR Starter | 10 | |
| AESpider | Signing Server | 60 | |
| AESpider | Null or Never | 100 | |
| Masquerade | Generators of Groups | 20 | |
| Ash477 | Finding Flags | 2 | |
| Qu1n7as | Signing Server | 60 | |
| dXNlcm5hbWU_ | Symmetry | 50 | |
| moe0l | RSA vs RNG | 150 | |
| 3x1t_x0f | Lemur XOR | 40 | |
| ahmadsmaan | You either know, XOR you don't | 30 | |
| eli10 | Finding Flags | 2 | |
| Marwa_Ayman | ECB CBC WTF | 55 | |
| xfnx | Couples | 100 | |
| moe0l | Let's Prove It Again | 175 | |
| mirez | JWT Secrets | 25 | |
| Yoshixi | Round Keys | 20 | |
| xfnx | Hamiltonicity 1 | 100 | |
| xfnx | Hamiltonicity (CryptoHack) | 0 | |
| halliana | Secure Protocols | 5 | |
| namdang | Elliptic Nodes | 150 | |
| AESpider | Bespoke Padding | 100 | |
| moe0l | Let's Prove It | 120 | |
| mirez | No Way JOSE | 20 | |
| OKlllng | RSA Decryption | 20 | |
| mirez | JWT Sessions | 10 |
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