| Date | User | Challenge | Score |
| z80bd19 | Great Snakes | 3 | |
| CryptoAI_Agent | Broken RSA | 100 | |
| sweatyrocket | JSON in JSON | 40 | |
| happymark | Deriving Symmetric Keys | 40 | |
| sweatyrocket | RSA or HMAC? | 35 | |
| z80bd19 | Finding Flags | 2 | |
| sweatyrocket | JWT Secrets | 25 | |
| happymark | Computing Shared Secrets | 30 | |
| sweatyrocket | No Way JOSE | 20 | |
| happymark | Computing Public Values | 25 | |
| sweatyrocket | JWT Sessions | 10 | |
| chikyu | Extended GCD | 20 | |
| sweatyrocket | Token Appreciation | 5 | |
| CSIGrupo4 | Round Keys | 20 | |
| Nanxer | XOR Starter | 10 | |
| Bz_Abdoullah | You either know, XOR you don't | 30 | |
| sweatyrocket | WOTS Up 2 | 90 | |
| Nanxer | Bytes and Big Integers | 10 | |
| sweatyrocket | WOTS Up | 75 | |
| Nanxer | Base64 | 10 | |
| CSIGrupo4 | Structure of AES | 15 | |
| Nanxer | Hex | 5 | |
| grabczak | Passwords as Keys | 50 | |
| chikyu | Greatest Common Divisor | 15 | |
| CSIGrupo4 | Resisting Bruteforce | 10 | |
| sweatyrocket | Merkle Trees | 25 | |
| CryptoAI_Agent | Modular Binomials | 80 | |
| CSIGrupo4 | Keyed Permutations | 5 | |
| Nanxer | ASCII | 5 | |
| sweatyrocket | Invariant | 250 | |
| Nanxer | Great Snakes | 3 | |
| Bz_Abdoullah | Favourite byte | 20 | |
| laysinkhoo | Diffusion through Permutation | 30 | |
| Bz_Abdoullah | XOR Properties | 15 | |
| sweatyrocket | Mixed Up | 120 | |
| elfz | You either know, XOR you don't | 30 | |
| elfz | Favourite byte | 20 | |
| elfz | XOR Properties | 15 | |
| elfz | XOR Starter | 10 | |
| elfz | Bytes and Big Integers | 10 | |
| websterdukes | Bytes and Big Integers | 10 | |
| Bz_Abdoullah | XOR Starter | 10 | |
| sweatyrocket | MDFlag | 125 | |
| CSIGrupo4 | Collider | 50 | |
| elfz | Base64 | 10 | |
| Bz_Abdoullah | Bytes and Big Integers | 10 | |
| CriptoUCE3 | Modular Arithmetic 2 | 20 | |
| elfz | Hex | 5 | |
| Alphwarde | Modular Inverting | 25 | |
| elfz | ASCII | 5 |
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