| Date | User | Challenge | Score |
| sontesch | Modular Arithmetic 1 | 20 | |
| kamikaze5826 | Finding Flags | 2 | |
| FieryBanana101 | Dual Masters | 90 | |
| Rayyiskull | You either know, XOR you don't | 30 | |
| OlaBadger | Encoding Challenge | 40 | |
| sinibida | Base64 | 10 | |
| Altaf909 | Computing Shared Secrets | 30 | |
| Islam111 | ASCII | 5 | |
| sinibida | Hex | 5 | |
| Divad_Al | Merkle Trees | 25 | |
| sinibida | ASCII | 5 | |
| ic3d_lemon | RSA or HMAC? | 35 | |
| Islam111 | Great Snakes | 3 | |
| denzel575 | XOR Starter | 10 | |
| sinibida | Network Attacks | 5 | |
| Altaf909 | Computing Public Values | 25 | |
| sinibida | Great Snakes | 3 | |
| Altaf909 | Working with Fields | 10 | |
| Cats_are_cool | Great Snakes | 3 | |
| Inknud | Hex | 5 | |
| HeptaZ | ECB Oracle | 60 | |
| BADWARE | Round Keys | 20 | |
| Vintcerf010 | Hex | 5 | |
| Hamodtow | Salty | 20 | |
| Altaf909 | Generators of Groups | 20 | |
| mboh2 | Network Attacks | 5 | |
| Inknud | ASCII | 5 | |
| 24BECSE19_DT | Prime and Prejudice | 200 | |
| waseem123 | ASCII | 5 | |
| Altaf909 | RSA Signatures | 25 | |
| Kran | You either know, XOR you don't | 30 | |
| Vintcerf010 | ASCII | 5 | |
| Inknud | Great Snakes | 3 | |
| sontesch | Extended GCD | 20 | |
| Medjed | Modular Arithmetic 1 | 20 | |
| Inknud | Finding Flags | 2 | |
| pixiepwn | Finding Flags | 2 | |
| sinibida | Finding Flags | 2 | |
| waseem123 | RSA Signatures | 25 | |
| Vintcerf010 | Great Snakes | 3 | |
| SirRockhead | XOR Starter | 10 | |
| Altaf909 | Let's Decrypt Again | 175 | |
| Altaf909 | Vote for Pedro | 150 | |
| Altaf909 | Blinding Light | 120 | |
| Altaf909 | Let's Decrypt | 80 | |
| Altaf909 | Signing Server | 60 | |
| Altaf909 | Null or Never | 100 | |
| martigo | Favourite byte | 20 | |
| Altaf909 | Bespoke Padding | 100 | |
| Altaf909 | RSA Backdoor Viability | 175 |
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