| Date | User | Challenge | Score |
| andcdc | You either know, XOR you don't | 30 | |
| andcdc | Favourite byte | 20 | |
| spartan8806 | Let's Decrypt Again | 175 | |
| hypehack | Finding Flags | 2 | |
| sredmond | Jack's Birthday Confusion | 30 | |
| cloudchamb3r | Modular Inverting | 25 | |
| cloudchamb3r | Modular Arithmetic 2 | 20 | |
| sjvvvv | Modular Binomials | 80 | |
| sjvvvv | Adrien's Signs | 80 | |
| sdigs | Mixed Up | 120 | |
| sjvvvv | Chinese Remainder Theorem | 40 | |
| spartan8806 | What's My Kernel | 70 | |
| sredmond | Jack's Birthday Hash | 20 | |
| sredmond | XOR Properties | 15 | |
| Raccoon42 | Missing Modulus | 80 | |
| AureoBytes | Base64 | 10 | |
| vdam | XOR Starter | 10 | |
| youssef_reda | Static Client 2 | 120 | |
| AureoBytes | Hex | 5 | |
| AureoBytes | ASCII | 5 | |
| vdam | Bytes and Big Integers | 10 | |
| AureoBytes | Great Snakes | 3 | |
| AureoBytes | Finding Flags | 2 | |
| vdam | Base64 | 10 | |
| vdam | Hex | 5 | |
| vdam | ASCII | 5 | |
| vdam | Great Snakes | 3 | |
| vdam | Finding Flags | 2 | |
| mohd13vip | One Round Crypto (ECSC 2024 (Italy)) | 0 | |
| BR0han | XOR Properties | 15 | |
| hoomishalom | Bespoke Padding | 100 | |
| maksushka | Parameter Injection | 60 | |
| BR0han | XOR Starter | 10 | |
| ll3006 | Montgomery's Ladder | 40 | |
| ibrahim_7 | Quo vadis? (ECSC 2024 (Italy)) | 0 | |
| naza_arcon | Keyed Permutations | 5 | |
| darkknight | Generators of Groups | 20 | |
| BR0han | Bytes and Big Integers | 10 | |
| amoelle | Extended GCD | 20 | |
| darkknight | Working with Fields | 10 | |
| moritzraho | Bytes and Big Integers | 10 | |
| youssef_reda | Additive | 70 | |
| ibrahim_7 | One Round Crypto (ECSC 2024 (Italy)) | 0 | |
| koraynilay | Factoring | 15 | |
| darkknight | Salty | 20 | |
| koraynilay | RSA Signatures | 25 | |
| maksushka | Deriving Symmetric Keys | 40 | |
| Almasbek | CTRIME | 70 | |
| shaked_srabstein | Manyprime | 40 | |
| hoomishalom | Encoding Challenge | 40 |
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