| Date | User | Challenge | Score |
| jackoha | Fischlin's Transformation (CryptoHack) | 0 | |
| jackoha | Fischlin Transform | 180 | |
| GeorgeSor | JWT Sessions | 10 | |
| GeorgeSor | Token Appreciation | 5 | |
| ck0d | Privacy-Enhanced Mail? | 25 | |
| junyouzin4209 | Modular Binomials | 80 | |
| josesoto | Extended GCD | 20 | |
| GeorgeSor | Gaussian Reduction | 50 | |
| bjoraz | Modular Arithmetic 1 | 20 | |
| junyouzin4209 | Real Eisenstein | 150 | |
| junyouzin4209 | Unencryptable | 125 | |
| junyouzin4209 | Ellipse Curve Cryptography | 125 | |
| junyouzin4209 | No Way Back Home | 100 | |
| junyouzin4209 | Broken RSA | 100 | |
| junyouzin4209 | Adrien's Signs | 80 | |
| GeorgeSor | What's a Lattice? | 40 | |
| josesoto | Greatest Common Divisor | 15 | |
| charisafish | Great Snakes | 3 | |
| charisafish | Finding Flags | 2 | |
| bjoraz | Extended GCD | 20 | |
| GeorgeSor | Gram Schmidt | 30 | |
| gumbat70 | JSON in JSON | 40 | |
| WhatAmIDoing | XOR Starter | 10 | |
| WhatAmIDoing | Bytes and Big Integers | 10 | |
| GeorgeSor | Size and Basis | 15 | |
| WhatAmIDoing | Base64 | 10 | |
| WhatAmIDoing | Hex | 5 | |
| WhatAmIDoing | ASCII | 5 | |
| WhatAmIDoing | Great Snakes | 3 | |
| Darko1323 | XOR Starter | 10 | |
| junyouzin4209 | Successive Powers | 60 | |
| WhatAmIDoing | Finding Flags | 2 | |
| znur | Round Keys | 20 | |
| znur | Structure of AES | 15 | |
| Darko1323 | Bytes and Big Integers | 10 | |
| gumbat70 | RSA or HMAC? | 35 | |
| junyouzin4209 | Modular Square Root | 35 | |
| junyouzin4209 | Legendre Symbol | 35 | |
| junyouzin4209 | Chinese Remainder Theorem | 40 | |
| junyouzin4209 | Quadratic Residues | 25 | |
| znur | Resisting Bruteforce | 10 | |
| Darko1323 | Base64 | 10 | |
| znur | Keyed Permutations | 5 | |
| junyouzin4209 | Beatboxer | 150 | |
| znur | Transparency | 50 | |
| givemeyourname | Favourite byte | 20 | |
| karsar11 | Salty | 20 | |
| GeorgeSor | Vectors | 10 | |
| jackoha | Hamiltonicity 2 (CryptoHack) | 0 | |
| jackoha | Hamiltonicity 2 | 175 |
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