| Date | User | Challenge | Score |
| ShivanshAgrawal | Modular Arithmetic 2 | 20 | |
| Fox_hacker | Great Snakes | 3 | |
| davramirezlo | Bytes and Big Integers | 10 | |
| SPAstef | WOTS Up | 75 | |
| Fox_hacker | Finding Flags | 2 | |
| cheeseee | Bean Counter | 60 | |
| azurenekowo | JWT Secrets | 25 | |
| azurenekowo | No Way JOSE | 20 | |
| cheeseee | Symmetry | 50 | |
| cheeseee | Flipping Cookie | 60 | |
| Harshil1110 | Resisting Bruteforce | 10 | |
| cheeseee | ECB CBC WTF | 55 | |
| AstroX | Adrien's Signs | 80 | |
| cheeseee | ECB Oracle | 60 | |
| totonito | Exceptional Curves | 100 | |
| vikaran | Bean Counter | 60 | |
| azurenekowo | JWT Sessions | 10 | |
| azurenekowo | Token Appreciation | 5 | |
| EMonkey11 | Base64 | 10 | |
| dansayag | Private Keys | 20 | |
| A_b_d_u_l_l_a_h_ | Great Snakes | 3 | |
| dansayag | Euler's Totient | 20 | |
| dansayag | Public Keys | 15 | |
| EMonkey11 | Hex | 5 | |
| NoamFridman | Marin's Secrets | 50 | |
| crypto_123123 | Monoprime | 30 | |
| Bomer107 | XOR Starter | 10 | |
| dansayag | Modular Exponentiation | 10 | |
| NoamFridman | Infinite Descent | 50 | |
| crypto_123123 | RSA Signatures | 25 | |
| Bomer107 | Bytes and Big Integers | 10 | |
| CannibalCorp | Extended GCD | 20 | |
| EMonkey11 | ASCII | 5 | |
| an1r | Modular Inverting | 25 | |
| nnarek | Export-grade | 100 | |
| cheeseee | Passwords as Keys | 50 | |
| EMonkey11 | Great Snakes | 3 | |
| crypto_123123 | RSA Decryption | 20 | |
| NoamFridman | Everything is Big | 70 | |
| Bomer107 | Base64 | 10 | |
| clemensGooooo | No Way Back Home | 100 | |
| EMonkey11 | Finding Flags | 2 | |
| AstroX | Chinese Remainder Theorem | 40 | |
| cheeseee | Modes of Operation Starter | 15 | |
| Bomer107 | Hex | 5 | |
| an1r | Modular Arithmetic 2 | 20 | |
| ariel07 | RSA Decryption | 20 | |
| ShivanshAgrawal | Modular Arithmetic 1 | 20 | |
| koyphshi | Real Curve Crypto | 200 | |
| Bomer107 | ASCII | 5 |
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