| Date | User | Challenge | Score |
| fd | You either know, XOR you don't | 30 | |
| fd | Favourite byte | 20 | |
| Zoe | XOR Starter | 10 | |
| lucy54 | Great Snakes | 3 | |
| pran_shoe | Point Addition | 30 | |
| User0069 | LWE Background | 5 | |
| lucy54 | Finding Flags | 2 | |
| nalina3179 | Bringing It All Together | 50 | |
| Denis_Roc | RSA Signatures | 25 | |
| fd | XOR Properties | 15 | |
| fd | XOR Starter | 10 | |
| Denis_Roc | RSA Decryption | 20 | |
| cference | XOR Starter | 10 | |
| p6k376 | Modular Square Root | 35 | |
| Denis_Roc | Private Keys | 20 | |
| Kabuto_Wiz | Chinese Remainder Theorem | 40 | |
| Zoe | Bytes and Big Integers | 10 | |
| Denis_Roc | Euler's Totient | 20 | |
| Kimwelemutunga | You either know, XOR you don't | 30 | |
| Denis_Roc | Public Keys | 15 | |
| Marabloo | Lemur XOR | 40 | |
| nalina3179 | Diffusion through Permutation | 30 | |
| Kimwelemutunga | Favourite byte | 20 | |
| valak264 | Base64 | 10 | |
| TeaQuicky | Confusion through Substitution | 25 | |
| cference | Bytes and Big Integers | 10 | |
| alzzz | Modes of Operation Starter | 15 | |
| Kimwelemutunga | XOR Properties | 15 | |
| TeaQuicky | Round Keys | 20 | |
| Denis_Roc | Modular Exponentiation | 10 | |
| TeaQuicky | Structure of AES | 15 | |
| Kimwelemutunga | XOR Starter | 10 | |
| valak264 | Hex | 5 | |
| pran_shoe | Point Negation | 10 | |
| lemful | JWT Secrets | 25 | |
| alzzz | Bringing It All Together | 50 | |
| valak264 | ASCII | 5 | |
| cference | Base64 | 10 | |
| lemful | No Way JOSE | 20 | |
| nalina3179 | Confusion through Substitution | 25 | |
| TeaQuicky | Resisting Bruteforce | 10 | |
| Kabuto_Wiz | Modular Square Root | 35 | |
| valak264 | Great Snakes | 3 | |
| TeaQuicky | Keyed Permutations | 5 | |
| TeaQuicky | Modular Arithmetic 2 | 20 | |
| valak264 | Finding Flags | 2 | |
| TeaQuicky | Modular Arithmetic 1 | 20 | |
| lemful | JWT Sessions | 10 | |
| lemful | Token Appreciation | 5 | |
| nalina3179 | Round Keys | 20 |
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