| Date | User | Challenge | Score |
| AndresSinclair | Finding Flags | 2 | |
| Teey | You either know, XOR you don't | 30 | |
| hungtrab | Saying Hello | 20 | |
| punisher1213 | Bytes and Big Integers | 10 | |
| ByteMe21 | Base64 | 10 | |
| ByteMe21 | Hex | 5 | |
| Teey | Favourite byte | 20 | |
| punisher1213 | Base64 | 10 | |
| sniperspade | Hex | 5 | |
| thehao | XOR Properties | 15 | |
| kapkan | Lemur XOR | 40 | |
| Neilster | Privacy-Enhanced Mail? | 25 | |
| kurao | Crossed Wires | 100 | |
| kapkan | Network Attacks | 5 | |
| Teey | XOR Properties | 15 | |
| Anivia_Jeremia | XOR Starter | 10 | |
| Neilster | Lemur XOR | 40 | |
| hungtrab | ProSign 3 | 100 | |
| Neilster | Encoding Challenge | 40 | |
| Anivia_Jeremia | Bytes and Big Integers | 10 | |
| ByteMe21 | ASCII | 5 | |
| ByteMe21 | Great Snakes | 3 | |
| Anivia_Jeremia | Base64 | 10 | |
| ByteMe21 | Finding Flags | 2 | |
| Omar_Ali_Mohamme | Structure of AES | 15 | |
| Omar_Ali_Mohamme | Resisting Bruteforce | 10 | |
| Omar_Ali_Mohamme | Network Attacks | 5 | |
| Omar_Ali_Mohamme | Keyed Permutations | 5 | |
| Hyper4k | XOR Starter | 10 | |
| hsyn | You either know, XOR you don't | 30 | |
| Omar_Ali_Mohamme | XOR Starter | 10 | |
| Neilster | Endless Emails | 150 | |
| lucurtis_clark | Base64 | 10 | |
| hsyn | Favourite byte | 20 | |
| Omar_Ali_Mohamme | Bytes and Big Integers | 10 | |
| Omar_Ali_Mohamme | Base64 | 10 | |
| lucurtis_clark | Hex | 5 | |
| hsyn | XOR Properties | 15 | |
| Omar_Ali_Mohamme | Hex | 5 | |
| taboctf | Introduction to Isogenies | 10 | |
| taboctf | LWE Intro | 10 | |
| taboctf | JWT Sessions | 10 | |
| taboctf | Sharks on the Wire | 10 | |
| taboctf | Vectors | 10 | |
| taboctf | Working with Fields | 10 | |
| taboctf | Point Negation | 10 | |
| lucurtis_clark | ASCII | 5 | |
| taboctf | Resisting Bruteforce | 10 | |
| taboctf | Modular Exponentiation | 10 | |
| taboctf | Bytes and Big Integers | 10 |
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