| Date | User | Challenge | Score |
| Mohammed_ballah | Square Eyes | 35 | |
| Mohammed_ballah | Monoprime | 30 | |
| LACiA | Monoprime | 30 | |
| mohammedalshalab | Bringing It All Together | 50 | |
| mohammedalshalab | Diffusion through Permutation | 30 | |
| LACiA | Inferius Prime | 30 | |
| mohammedalshalab | Confusion through Substitution | 25 | |
| mohammedalshalab | Structure of AES | 15 | |
| mohammedalshalab | Resisting Bruteforce | 10 | |
| mohammedalshalab | Keyed Permutations | 5 | |
| LACiA | Factoring | 15 | |
| LACiA | RSA Signatures | 25 | |
| DreamingCassette | XOR Starter | 10 | |
| gallagator | Finding Flags | 2 | |
| Mohammed_ballah | Inferius Prime | 30 | |
| LACiA | RSA Decryption | 20 | |
| gluecicle | Greatest Common Divisor | 15 | |
| LACiA | Private Keys | 20 | |
| Mohammed_ballah | Factoring | 15 | |
| yz4n | You either know, XOR you don't | 30 | |
| yz4n | Favourite byte | 20 | |
| LACiA | Euler's Totient | 20 | |
| Mohammed_ballah | RSA Signatures | 25 | |
| LACiA | Public Keys | 15 | |
| LACiA | Modular Exponentiation | 10 | |
| LACiA | Prime and Prejudice | 200 | |
| xtrm0 | Hamiltonicity 2 | 175 | |
| xtrm0 | Hamiltonicity 2 (CryptoHack) | 0 | |
| 9hl | Bytes and Big Integers | 10 | |
| 9hl | Base64 | 10 | |
| 9hl | Hex | 5 | |
| 9hl | ASCII | 5 | |
| Mohammed_ballah | RSA Decryption | 20 | |
| LACiA | Real Eisenstein | 150 | |
| 9hl | Great Snakes | 3 | |
| 9hl | Finding Flags | 2 | |
| Mohammed_ballah | Private Keys | 20 | |
| LACiA | Cofactor Cofantasy | 150 | |
| strikeout | Logon Zero | 80 | |
| Mohammed_ballah | Euler's Totient | 20 | |
| LACiA | Unencryptable | 125 | |
| xtrm0 | Hamiltonicity 1 | 100 | |
| JesusJacinto300 | Finding Flags | 2 | |
| xtrm0 | Hamiltonicity (CryptoHack) | 0 | |
| Mohammed_ballah | Public Keys | 15 | |
| LeeKangHy | Scalar Multiplication | 35 | |
| Mohammed_ballah | Modular Exponentiation | 10 | |
| LACiA | Roll your Own | 125 | |
| Mohammed_ballah | Modular Binomials | 80 | |
| CARLO_HTW | Quadratic Residues | 25 |
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