| Date | User | Challenge | Score |
| vsdfiopfjv0ejsf9 | Favourite byte | 20 | |
| cyandyes | XOR Starter | 10 | |
| jjjjjjjjjjjjjj | Finding Flags | 2 | |
| Ishmam | Square Eyes | 35 | |
| vsdfiopfjv0ejsf9 | XOR Properties | 15 | |
| punu123 | Favourite byte | 20 | |
| vsdfiopfjv0ejsf9 | XOR Starter | 10 | |
| Seventt | You either know, XOR you don't | 30 | |
| holycoly1234 | Hex | 5 | |
| YuanShan | Hex | 5 | |
| vsdfiopfjv0ejsf9 | Bytes and Big Integers | 10 | |
| manuel_racle | Triple DES | 60 | |
| holycoly1234 | ASCII | 5 | |
| acedevine | Public Keys | 15 | |
| holycoly1234 | Great Snakes | 3 | |
| Ishmam | Monoprime | 30 | |
| YuanShan | ASCII | 5 | |
| YuanShan | Great Snakes | 3 | |
| samdkaushik | ECB CBC WTF | 55 | |
| holycoly1234 | Finding Flags | 2 | |
| punu123 | XOR Properties | 15 | |
| YuanShan | Finding Flags | 2 | |
| ayon261 | Square Eyes | 35 | |
| TinyLean | Endless Emails | 150 | |
| TinyLean | Everything is Still Big | 100 | |
| vsdfiopfjv0ejsf9 | Base64 | 10 | |
| acedevine | Modular Exponentiation | 10 | |
| rohan_m | RSA Signatures | 25 | |
| acedevine | Quadratic Residues | 25 | |
| SreehariNair | Adrien's Signs | 80 | |
| AH_Sarrafi | ASCII | 5 | |
| vsdfiopfjv0ejsf9 | Hex | 5 | |
| vsdfiopfjv0ejsf9 | ASCII | 5 | |
| TinyLean | Crossed Wires | 100 | |
| acedevine | Modular Inverting | 25 | |
| omelet | Exceptional Curves | 100 | |
| acedevine | Modular Arithmetic 2 | 20 | |
| acedevine | Modular Arithmetic 1 | 20 | |
| acedevine | Extended GCD | 20 | |
| SreehariNair | Chinese Remainder Theorem | 40 | |
| vsdfiopfjv0ejsf9 | Great Snakes | 3 | |
| mjh419 | Export-grade | 100 | |
| salmael | Hex | 5 | |
| Carixo | Export-grade | 100 | |
| mjh419 | Parameter Injection | 60 | |
| vsdfiopfjv0ejsf9 | Finding Flags | 2 | |
| N0tPresl3y | Nothing Up My Sleeve | 150 | |
| samdkaushik | ECB Oracle | 60 | |
| anandabhiram | Export-grade | 100 | |
| ayon261 | Monoprime | 30 |
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