| Date | User | Challenge | Score |
| 0xGecko | ASCII | 5 | |
| ll3006 | XOR Starter | 10 | |
| CipherY3D | Quadratic Residues | 25 | |
| sebastianmonroy | Factoring | 15 | |
| ll3006 | Bytes and Big Integers | 10 | |
| amiahcrypto | Finding Flags | 2 | |
| sebastianmonroy | RSA Signatures | 25 | |
| 0xGecko | Great Snakes | 3 | |
| ll3006 | Base64 | 10 | |
| sebastianmonroy | RSA Decryption | 20 | |
| sebastianmonroy | Private Keys | 20 | |
| ll3006 | Hex | 5 | |
| sebastianmonroy | Euler's Totient | 20 | |
| sebastianmonroy | Public Keys | 15 | |
| ll3006 | ASCII | 5 | |
| 0xGecko | Finding Flags | 2 | |
| sebastianmonroy | Modular Exponentiation | 10 | |
| ll3006 | Great Snakes | 3 | |
| ll3006 | Finding Flags | 2 | |
| sebastianmonroy | ZKP Introduction | 5 | |
| darkknight | RSA Decryption | 20 | |
| RotaJakiro | Keyed Permutations | 5 | |
| TheGhost123 | Hex | 5 | |
| mls49 | XOR Properties | 15 | |
| richmoneybank479 | Resisting Bruteforce | 10 | |
| sebastianmonroy | Jack's Birthday Confusion | 30 | |
| sebastianmonroy | Jack's Birthday Hash | 20 | |
| richmoneybank479 | Keyed Permutations | 5 | |
| liebefinden | You either know, XOR you don't | 30 | |
| richmoneybank479 | Encoding Challenge | 40 | |
| TheGhost123 | ASCII | 5 | |
| T3nk3yyy | Adrien's Signs | 80 | |
| liebefinden | Favourite byte | 20 | |
| ShowySyrup | Modular Arithmetic 1 | 20 | |
| kacpersowka | Modular Arithmetic 1 | 20 | |
| sdevk | Finding Flags | 2 | |
| nao_sei | Chinese Remainder Theorem | 40 | |
| kacpersowka | Extended GCD | 20 | |
| D3yAaN | You either know, XOR you don't | 30 | |
| richmoneybank479 | Transparency | 50 | |
| ShowySyrup | Extended GCD | 20 | |
| quangntenemy | Nativity | 60 | |
| sdigs | PriMeD5 | 100 | |
| liebefinden | XOR Properties | 15 | |
| sasvi | Modular Inverting | 25 | |
| erickao | Resisting Bruteforce | 10 | |
| sasvi | Modular Arithmetic 2 | 20 | |
| D3yAaN | Favourite byte | 20 | |
| erickao | Keyed Permutations | 5 | |
| ayoubaitlaarbi | Hex | 5 |
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