| Date | User | Challenge | Score |
| sadrikvo49 | RSA Signatures | 25 | |
| mqn | XOR Starter | 10 | |
| Plugray | Montgomery's Ladder | 40 | |
| mqn | Bytes and Big Integers | 10 | |
| p6k376 | Round Keys | 20 | |
| pran_shoe | Efficient Exchange | 50 | |
| Aliza | Great Snakes | 3 | |
| mqn | Base64 | 10 | |
| mins106 | Modular Arithmetic 1 | 20 | |
| p6k376 | Structure of AES | 15 | |
| mqn | Hex | 5 | |
| mochaowo | MD0 | 80 | |
| vigneshwaran0711 | Favourite byte | 20 | |
| mqn | ASCII | 5 | |
| mqn | Great Snakes | 3 | |
| vigneshwaran0711 | XOR Properties | 15 | |
| mqn | Finding Flags | 2 | |
| Deco | Hex | 5 | |
| Deco | ASCII | 5 | |
| vigneshwaran0711 | XOR Starter | 10 | |
| dh404 | XOR Starter | 10 | |
| Deco | Great Snakes | 3 | |
| Deco | Finding Flags | 2 | |
| vigneshwaran0711 | Bytes and Big Integers | 10 | |
| Dr4g0nFly | Greatest Common Divisor | 15 | |
| dh404 | Bytes and Big Integers | 10 | |
| 4AAA4 | Public Keys | 15 | |
| 4AAA4 | Modular Exponentiation | 10 | |
| vigneshwaran0711 | Base64 | 10 | |
| p6k376 | Resisting Bruteforce | 10 | |
| p6k376 | Keyed Permutations | 5 | |
| dh404 | Base64 | 10 | |
| vigneshwaran0711 | Hex | 5 | |
| vigneshwaran0711 | ASCII | 5 | |
| dh404 | Hex | 5 | |
| vigneshwaran0711 | Great Snakes | 3 | |
| sadrikvo49 | RSA Decryption | 20 | |
| vigneshwaran0711 | Finding Flags | 2 | |
| nalina3179 | Size and Basis | 15 | |
| 4AAA4 | Modular Binomials | 80 | |
| fancylake | Monoprime | 30 | |
| sadrikvo49 | Private Keys | 20 | |
| Palesword | Chinese Remainder Theorem | 40 | |
| nalina3179 | Vectors | 10 | |
| fancylake | Factoring | 15 | |
| Dessert | Background Reading | 5 | |
| fancylake | RSA Signatures | 25 | |
| Kahfi30134 | Round Keys | 20 | |
| fancylake | RSA Decryption | 20 | |
| nalina3179 | Background Reading | 5 |
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