| Date | User | Challenge | Score |
| cybosm | Finding Flags | 2 | |
| hunnter | Modular Inverting | 25 | |
| hunnter | Modular Arithmetic 2 | 20 | |
| chmakorkrich | Sharks on the Wire | 10 | |
| hunnter | Modular Arithmetic 1 | 20 | |
| chmakorkrich | Secure Protocols | 5 | |
| hunnter | Extended GCD | 20 | |
| chmakorkrich | RSA or HMAC? Part 2 | 100 | |
| hunnter | Greatest Common Divisor | 15 | |
| hunnter | Lemur XOR | 40 | |
| enjay | You either know, XOR you don't | 30 | |
| chmakorkrich | JSON in JSON | 40 | |
| Ronald1959 | Private Keys | 20 | |
| chmakorkrich | RSA or HMAC? | 35 | |
| Ronald1959 | Euler's Totient | 20 | |
| usmant12 | Jack's Birthday Confusion | 30 | |
| Ronald1959 | Public Keys | 15 | |
| Ronald1959 | Modular Exponentiation | 10 | |
| usmant12 | Jack's Birthday Hash | 20 | |
| hunnter | You either know, XOR you don't | 30 | |
| hunnter | XOR Properties | 15 | |
| Blue_Whale__ | Parameter Injection | 60 | |
| 21beca | Privacy-Enhanced Mail? | 25 | |
| chmakorkrich | JWT Secrets | 25 | |
| chmakorkrich | No Way JOSE | 20 | |
| chmakorkrich | JWT Sessions | 10 | |
| chmakorkrich | Token Appreciation | 5 | |
| usmant12 | XOR Starter | 10 | |
| Reda911 | You either know, XOR you don't | 30 | |
| Reda911 | Favourite byte | 20 | |
| Reda911 | XOR Properties | 15 | |
| Reda911 | XOR Starter | 10 | |
| Reda911 | Bytes and Big Integers | 10 | |
| Reda911 | Base64 | 10 | |
| HarshVardhan | Modular Inverting | 25 | |
| HarshVardhan | Modular Arithmetic 2 | 20 | |
| HarshVardhan | Modular Arithmetic 1 | 20 | |
| Reda911 | Hex | 5 | |
| Reda911 | ASCII | 5 | |
| Reda911 | Great Snakes | 3 | |
| Namunamu | ProSign 3 | 100 | |
| Unix_Potter | XOR Starter | 10 | |
| hunnter | Encoding Challenge | 40 | |
| JhonFarel | Finding Flags | 2 | |
| huangshuyan258 | Modular Inverting | 25 | |
| zack_zhw | Modular Inverting | 25 | |
| zack_zhw | Modular Arithmetic 2 | 20 | |
| smbstudy | Modular Arithmetic 1 | 20 | |
| huangshuyan258 | Modular Arithmetic 2 | 20 | |
| tannosukeee | Export-grade | 100 |
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