| Date | User | Challenge | Score |
| _bel_ | Keyed Permutations | 5 | |
| Chandanahy | Base64 | 10 | |
| kacpersowka | Passwords as Keys | 50 | |
| 4R60 | Finding Flags | 2 | |
| CiviDivi | You either know, XOR you don't | 30 | |
| Z4ME | Greatest Common Divisor | 15 | |
| dackelberg | Adrien's Signs | 80 | |
| Chausse | Modular Square Root | 35 | |
| JoniLyomila | Hex | 5 | |
| cydeX | Jack's Birthday Confusion | 30 | |
| demr | Scalar Multiplication | 35 | |
| miiyen | Moving Problems | 150 | |
| cydeX | Jack's Birthday Hash | 20 | |
| dackelberg | Chinese Remainder Theorem | 40 | |
| byakugan | Base64 | 10 | |
| hanahiennguyen | Montgomery's Ladder | 40 | |
| Chandanahy | Hex | 5 | |
| Chandanahy | ASCII | 5 | |
| Chandanahy | Great Snakes | 3 | |
| byakugan | Hex | 5 | |
| Chandanahy | Finding Flags | 2 | |
| SpongeBob369 | Modular Square Root | 35 | |
| byakugan | ASCII | 5 | |
| yuzu | CERTainly not | 30 | |
| byakugan | Great Snakes | 3 | |
| z4r10 | Network Attacks | 5 | |
| byakugan | Finding Flags | 2 | |
| miiyen | Elliptic Nodes | 150 | |
| demr | Point Addition | 30 | |
| schrodycat | Greatest Common Divisor | 15 | |
| z4r10 | Modular Binomials | 80 | |
| kacpersowka | Modes of Operation Starter | 15 | |
| Chausse | Legendre Symbol | 35 | |
| kacpersowka | Bringing It All Together | 50 | |
| sadmin | Megalomaniac 1 | 100 | |
| abishek | Base64 | 10 | |
| abishek | Hex | 5 | |
| abishek | ASCII | 5 | |
| z4r10 | Adrien's Signs | 80 | |
| abishek | Great Snakes | 3 | |
| Hiiii | Greatest Common Divisor | 15 | |
| exoq | Parameter Injection | 60 | |
| rceis | Finding Flags | 2 | |
| williehen | JSON in JSON | 40 | |
| cydeX | RSA Decryption | 20 | |
| williehen | RSA or HMAC? | 35 | |
| cydeX | Private Keys | 20 | |
| Lanzxxy | Bytes and Big Integers | 10 | |
| L53753 | Hex | 5 | |
| cydeX | Euler's Totient | 20 |
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