| Date | User | Challenge | Score |
| kai06 | Factoring | 15 | |
| nguyentrung | Favourite byte | 20 | |
| lucky123 | Hex | 5 | |
| kai06 | RSA Signatures | 25 | |
| ADDADDA | Point Addition | 30 | |
| luna12 | XOR Properties | 15 | |
| edlks1379 | RSA Signatures | 25 | |
| caledt | Chinese Remainder Theorem | 40 | |
| IsraelMC9 | Point Addition | 30 | |
| IsraelMC9 | Point Negation | 10 | |
| luna12 | XOR Starter | 10 | |
| edlks1379 | RSA Decryption | 20 | |
| Urvi | Modular Binomials | 80 | |
| SCHROBB | Modular Inverting | 25 | |
| littleseal26 | Legendre Symbol | 35 | |
| luna12 | Bytes and Big Integers | 10 | |
| edlks1379 | Private Keys | 20 | |
| lucky123 | ASCII | 5 | |
| GabrielMorais | Bytes and Big Integers | 10 | |
| aa2166 | Modular Square Root | 35 | |
| GabrielMorais | Base64 | 10 | |
| lucky123 | Great Snakes | 3 | |
| lucky123 | Finding Flags | 2 | |
| hemra | Successive Powers | 60 | |
| GabrielMorais | Hex | 5 | |
| hemra | Chinese Remainder Theorem | 40 | |
| GabrielMorais | ASCII | 5 | |
| cyberri | A Twisted Mind | 80 | |
| hemra | Legendre Symbol | 35 | |
| boyzuul | ASCII | 5 | |
| hemra | Quadratic Residues | 25 | |
| boyzuul | Network Attacks | 5 | |
| TrappedMouse | Hex | 5 | |
| TrappedMouse | ASCII | 5 | |
| luna12 | Base64 | 10 | |
| TrappedMouse | Great Snakes | 3 | |
| TrappedMouse | Finding Flags | 2 | |
| Gr1Mac3 | Network Attacks | 5 | |
| edlks1379 | Euler's Totient | 20 | |
| luna12 | Hex | 5 | |
| edlks1379 | Public Keys | 15 | |
| Gr1Mac3 | Bytes and Big Integers | 10 | |
| luna12 | ASCII | 5 | |
| cathomassmith689 | Scalar Multiplication | 35 | |
| cathomassmith689 | Point Addition | 30 | |
| cathomassmith689 | Point Negation | 10 | |
| Gr1Mac3 | Base64 | 10 | |
| cathomassmith689 | Background Reading | 5 | |
| Gr1Mac3 | Hex | 5 | |
| malcolmy | XOR Starter | 10 |
You are now level Current level