| Date | User | Challenge | Score |
| 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 | |
| LACiA | Ellipse Curve Cryptography | 125 | |
| xtrm0 | OR Proof | 75 | |
| Mohammed_ballah | Adrien's Signs | 80 | |
| duckyCrypt | Modular Exponentiation | 10 | |
| hasnaa | ASCII | 5 | |
| Mohammed_ballah | Chinese Remainder Theorem | 40 | |
| Mohammed_ballah | Modular Square Root | 35 | |
| zero_dayve | Resisting Bruteforce | 10 | |
| Mohammed_ballah | Legendre Symbol | 35 | |
| AnonymousBadger | ZKP Introduction | 5 | |
| hasnaa | Great Snakes | 3 | |
| LACiA | No Way Back Home | 100 | |
| zero_dayve | Keyed Permutations | 5 | |
| yz4n | XOR Properties | 15 | |
| hasnaa | Finding Flags | 2 | |
| Minhhau | Bean Counter | 60 | |
| Mohammed_ballah | Quadratic Residues | 25 | |
| Mohammed_ballah | Modular Inverting | 25 | |
| im1ne | Great Snakes | 3 | |
| Mohammed_ballah | Modular Arithmetic 2 | 20 | |
| Mohammed_ballah | Modular Arithmetic 1 | 20 | |
| Mohammed_ballah | Extended GCD | 20 | |
| Mohammed_ballah | Greatest Common Divisor | 15 | |
| DreamingCassette | Bytes and Big Integers | 10 | |
| LACiA | Broken RSA | 100 | |
| Mohammed_ballah | You either know, XOR you don't | 30 | |
| Mohammed_ballah | Favourite byte | 20 | |
| LeeKangHy | Point Addition | 30 | |
| LACiA | Modular Binomials | 80 | |
| Mohammed_ballah | XOR Properties | 15 |
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