| Date | User | Challenge | Score |
| Lilinta | Round Keys | 20 | |
| hakka52 | Proofs of Knowledge | 20 | |
| Lilinta | Structure of AES | 15 | |
| esong | Chinese Remainder Theorem | 40 | |
| ii76 | Bringing It All Together | 50 | |
| iljaaz | Monoprime | 30 | |
| iljaaz | Factoring | 15 | |
| iljaaz | RSA Signatures | 25 | |
| hakka52 | ZKP Introduction | 5 | |
| icytiger363 | XOR Properties | 15 | |
| Didis2000 | Bytes and Big Integers | 10 | |
| iljaaz | RSA Decryption | 20 | |
| iljaaz | Private Keys | 20 | |
| iljaaz | Euler's Totient | 20 | |
| hakka52 | The j-invariant | 20 | |
| iljaaz | Public Keys | 15 | |
| iljaaz | Modular Exponentiation | 10 | |
| Didis2000 | Base64 | 10 | |
| hakka52 | Introduction to Isogenies | 10 | |
| Didis2000 | Hex | 5 | |
| brunolim4 | Ellipse Curve Cryptography | 125 | |
| icytiger363 | XOR Starter | 10 | |
| Didis2000 | ASCII | 5 | |
| Didis2000 | Great Snakes | 3 | |
| icytiger363 | Bytes and Big Integers | 10 | |
| moonblanck14 | Greatest Common Divisor | 15 | |
| Didis2000 | Finding Flags | 2 | |
| esong | Modular Square Root | 35 | |
| C3O_404 | Finding Flags | 2 | |
| icytiger363 | Base64 | 10 | |
| icytiger363 | Hex | 5 | |
| icytiger363 | ASCII | 5 | |
| icytiger363 | Great Snakes | 3 | |
| icytiger363 | Finding Flags | 2 | |
| lerequin | Modular Binomials | 80 | |
| thermis | Base64 | 10 | |
| VEDANTGDDN | Greatest Common Divisor | 15 | |
| thermis | Hex | 5 | |
| thermis | ASCII | 5 | |
| 0xPickles | ASCII | 5 | |
| thermis | Great Snakes | 3 | |
| 0xPickles | Great Snakes | 3 | |
| 0xPickles | Finding Flags | 2 | |
| arwaWahid | You either know, XOR you don't | 30 | |
| Tdawge | Quadratic Residues | 25 | |
| anshuman07 | Quadratic Residues | 25 | |
| arwaWahid | Lemur XOR | 40 | |
| arwaWahid | Encoding Challenge | 40 | |
| anshuman07 | Modular Inverting | 25 | |
| elmo1291724 | Hex | 5 |
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