| Date | User | Challenge | Score |
| Morialbast | Modular Inverting | 25 | |
| richmoneybank479 | You either know, XOR you don't | 30 | |
| Morialbast | Modular Arithmetic 2 | 20 | |
| Spire | Jack's Birthday Hash | 20 | |
| Spire | Endless Emails | 150 | |
| Spire | Everything is Still Big | 100 | |
| Spire | Background Reading | 5 | |
| Morialbast | Modular Arithmetic 1 | 20 | |
| quangntenemy | Couples | 100 | |
| BoonieX | Greatest Common Divisor | 15 | |
| richmoneybank479 | Favourite byte | 20 | |
| Morialbast | Extended GCD | 20 | |
| Spire | Crossed Wires | 100 | |
| Morialbast | Greatest Common Divisor | 15 | |
| sebastianmonroy | Network Attacks | 5 | |
| Spire | Salty | 20 | |
| cyk0sure | ECB CBC WTF | 55 | |
| Spire | Monoprime | 30 | |
| Gabriel_Pitic | Export-grade | 100 | |
| Gabriel_Pitic | Parameter Injection | 60 | |
| Rubik0n | Curves and Logs | 40 | |
| sebastianmonroy | Great Snakes | 3 | |
| Gabriel_Pitic | Deriving Symmetric Keys | 40 | |
| Gabriel_Pitic | Computing Shared Secrets | 30 | |
| gufo | Armory | 100 | |
| Raxyz | XOR Starter | 10 | |
| sebastianmonroy | Finding Flags | 2 | |
| Gabriel_Pitic | Computing Public Values | 25 | |
| Gabriel_Pitic | Generators of Groups | 20 | |
| Gabriel_Pitic | Working with Fields | 10 | |
| Gabriel_Pitic | Modulus Inutilis | 50 | |
| oyamaaa | Base64 | 10 | |
| Gabriel_Pitic | Salty | 20 | |
| Gabriel_Pitic | Manyprime | 40 | |
| Gabriel_Pitic | Monoprime | 30 | |
| TeaQuicky | Great Snakes | 3 | |
| Gabriel_Pitic | Factoring | 15 | |
| Cano_il_Marsi | Armory | 100 | |
| Gabriel_Pitic | RSA Signatures | 25 | |
| oyamaaa | Hex | 5 | |
| Rubik0n | Scalar Multiplication | 35 | |
| TeaQuicky | Finding Flags | 2 | |
| Kosta | Extended GCD | 20 | |
| Raxyz | Bytes and Big Integers | 10 | |
| oyamaaa | ASCII | 5 | |
| gabriellino1936 | Adrien's Signs | 80 | |
| Gabriel_Pitic | RSA Decryption | 20 | |
| Gabriel_Pitic | Private Keys | 20 | |
| Gabriel_Pitic | Euler's Totient | 20 | |
| yumiarakawa | Great Snakes | 3 |
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