| Date | User | Challenge | Score |
| m_ehsaan | Euler's Totient | 20 | |
| radare | Jack's Birthday Hash | 20 | |
| m_ehsaan | Public Keys | 15 | |
| asanthosh2406 | Favourite byte | 20 | |
| Nayely | RSA Decryption | 20 | |
| laa218 | Modular Arithmetic 1 | 20 | |
| 01180766 | Ron was Wrong, Whit is Right | 90 | |
| laa218 | Extended GCD | 20 | |
| laa218 | Greatest Common Divisor | 15 | |
| sewulas | Modular Exponentiation | 10 | |
| 0xShaimaa | Finding Flags | 2 | |
| m_ehsaan | Modular Exponentiation | 10 | |
| JakeWin | Hex | 5 | |
| malgorzata_p | Script Kiddie | 70 | |
| laa218 | You either know, XOR you don't | 30 | |
| asanthosh2406 | XOR Properties | 15 | |
| laa218 | Favourite byte | 20 | |
| Sameer3018 | Export-grade | 100 | |
| Sameer3018 | Parameter Injection | 60 | |
| m_ehsaan | Resisting Bruteforce | 10 | |
| m_ehsaan | Keyed Permutations | 5 | |
| Sameer3018 | Deriving Symmetric Keys | 40 | |
| asanthosh2406 | XOR Starter | 10 | |
| cjc468 | Modular Square Root | 35 | |
| Sameer3018 | Computing Shared Secrets | 30 | |
| yoyostring | Adrien's Signs | 80 | |
| kk1394 | Hex | 5 | |
| laa218 | XOR Properties | 15 | |
| Sameer3018 | Computing Public Values | 25 | |
| asanthosh2406 | Bytes and Big Integers | 10 | |
| Sameer3018 | Generators of Groups | 20 | |
| Brian2121 | Hex | 5 | |
| Sameer3018 | Working with Fields | 10 | |
| asanthosh2406 | Base64 | 10 | |
| Sameer3018 | Modulus Inutilis | 50 | |
| laa218 | XOR Starter | 10 | |
| Sameer3018 | Salty | 20 | |
| Sameer3018 | Manyprime | 40 | |
| laa218 | Bytes and Big Integers | 10 | |
| Sameer3018 | Monoprime | 30 | |
| VissLow | XOR Properties | 15 | |
| laa218 | Base64 | 10 | |
| Sameer3018 | Factoring | 15 | |
| laa218 | Hex | 5 | |
| m_ehsaan | Modular Binomials | 80 | |
| valentinb | Greatest Common Divisor | 15 | |
| m_ehsaan | Adrien's Signs | 80 | |
| Brian2121 | ASCII | 5 | |
| JakeWin | ASCII | 5 | |
| laa218 | ASCII | 5 |
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