| Date | User | Challenge | Score |
| jeonghyun | Confusion through Substitution | 25 | |
| XPhuocNe | Roll your Own | 125 | |
| jeonghyun | Round Keys | 20 | |
| Cyberpatriot123 | XOR Starter | 10 | |
| jeonghyun | Structure of AES | 15 | |
| IncognitoKKJ | Hex | 5 | |
| jeonghyun | Resisting Bruteforce | 10 | |
| jeonghyun | Keyed Permutations | 5 | |
| jeonghyun | Modular Binomials | 80 | |
| IncognitoKKJ | ASCII | 5 | |
| tndbang | Null or Never | 100 | |
| jeonghyun | Adrien's Signs | 80 | |
| jeonghyun | Chinese Remainder Theorem | 40 | |
| tndbang | Bespoke Padding | 100 | |
| GroGod | Keyed Permutations | 5 | |
| jeonghyun | Modular Square Root | 35 | |
| tndbang | RSA Backdoor Viability | 175 | |
| XPhuocNe | Ellipse Curve Cryptography | 125 | |
| jeonghyun | Legendre Symbol | 35 | |
| tndbang | Vote for Pedro | 150 | |
| tndbang | Let's Decrypt | 80 | |
| jeonghyun | Quadratic Residues | 25 | |
| jeonghyun | Modular Inverting | 25 | |
| jeonghyun | Modular Arithmetic 2 | 20 | |
| hippo333 | Modular Binomials | 80 | |
| IncognitoKKJ | Great Snakes | 3 | |
| jeonghyun | Modular Arithmetic 1 | 20 | |
| tndbang | Blinding Light | 120 | |
| IncognitoKKJ | Finding Flags | 2 | |
| jeonghyun | Extended GCD | 20 | |
| jeonghyun | Greatest Common Divisor | 15 | |
| jeonghyun | You either know, XOR you don't | 30 | |
| jeonghyun | Favourite byte | 20 | |
| GroGod | Legendre Symbol | 35 | |
| jeonghyun | XOR Properties | 15 | |
| jeonghyun | XOR Starter | 10 | |
| jeonghyun | Bytes and Big Integers | 10 | |
| jeonghyun | Base64 | 10 | |
| jeonghyun | Hex | 5 | |
| jeonghyun | ASCII | 5 | |
| jeonghyun | Great Snakes | 3 | |
| jeonghyun | Finding Flags | 2 | |
| XPhuocNe | Broken RSA | 100 | |
| Mote | RSA Signatures | 25 | |
| Cyberpatriot123 | Bytes and Big Integers | 10 | |
| Nobody_shit4 | Finding Flags | 2 | |
| test_dhkt | Quadratic Residues | 25 | |
| Cyberpatriot123 | Base64 | 10 | |
| Cyberpatriot123 | Hex | 5 | |
| XPhuocNe | No Way Back Home | 100 |
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