| Date | User | Challenge | Score |
| uzer503 | Great Snakes | 3 | |
| mpatel | Favourite byte | 20 | |
| ShadetheAvali | JWT Sessions | 10 | |
| mpatel | XOR Properties | 15 | |
| mpatel | XOR Starter | 10 | |
| mpatel | Bytes and Big Integers | 10 | |
| uzer503 | Finding Flags | 2 | |
| mpatel | Base64 | 10 | |
| piotrjacak | Oh SNAP | 120 | |
| Ar_Dandan | XOR Starter | 10 | |
| Artur6725 | Bean Counter | 60 | |
| mpatel | Hex | 5 | |
| seagul | Resisting Bruteforce | 10 | |
| mpatel | ASCII | 5 | |
| mpatel | Great Snakes | 3 | |
| seagul | Keyed Permutations | 5 | |
| mpatel | Finding Flags | 2 | |
| buz | XOR Starter | 10 | |
| Simo | DLOG on the Surface | 40 | |
| seagul | Greatest Common Divisor | 15 | |
| TnT_DG | RSA Decryption | 20 | |
| kkimyy | ASCII | 5 | |
| kostasskor | Base64 | 10 | |
| sewulas | Static Client 2 | 120 | |
| seagul | You either know, XOR you don't | 30 | |
| zgd909 | Collider | 50 | |
| zgd909 | Hash Stuffing | 50 | |
| Ar_Dandan | Bytes and Big Integers | 10 | |
| zgd909 | Jack's Birthday Confusion | 30 | |
| zgd909 | Jack's Birthday Hash | 20 | |
| Artur6725 | Symmetry | 50 | |
| zgd909 | Unencryptable | 125 | |
| kostasskor | Hex | 5 | |
| zgd909 | Roll your Own | 125 | |
| zgd909 | Ellipse Curve Cryptography | 125 | |
| Klaudia | Resisting Bruteforce | 10 | |
| zgd909 | No Way Back Home | 100 | |
| frejfoe | Jack's Birthday Confusion | 30 | |
| zgd909 | Broken RSA | 100 | |
| zgd909 | Modular Binomials | 80 | |
| sewulas | Additive | 70 | |
| seagul | Favourite byte | 20 | |
| zgd909 | Adrien's Signs | 80 | |
| zgd909 | Successive Powers | 60 | |
| zgd909 | Chinese Remainder Theorem | 40 | |
| zgd909 | Modular Square Root | 35 | |
| TnT_DG | Private Keys | 20 | |
| kkimyy | Great Snakes | 3 | |
| AHMADLABOLABO | Efficient Exchange | 50 | |
| seagul | XOR Properties | 15 |
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