| Date | User | Challenge | Score |
| mustafa_algasham | Pad Thai | 80 | |
| PikaLuvsKetchup | ASCII | 5 | |
| fasegiar | You either know, XOR you don't | 30 | |
| mustafa_algasham | Encoding Challenge | 40 | |
| mustafa_algasham | Transparency | 50 | |
| mustafa_algasham | Lazy CBC | 60 | |
| Cano_il_Marsi | Chinese Remainder Theorem | 40 | |
| yvssine | Modular Square Root | 35 | |
| mustafa_algasham | SSH Keys | 35 | |
| mustafa_algasham | CERTainly not | 30 | |
| mustafa_algasham | Privacy-Enhanced Mail? | 25 | |
| freakfran | Bytes and Big Integers | 10 | |
| grunge | Finding Flags | 2 | |
| Cano_il_Marsi | Modular Square Root | 35 | |
| Eselfin31 | Bytes and Big Integers | 10 | |
| dan_me | Privacy-Enhanced Mail? | 25 | |
| Eselfin31 | Base64 | 10 | |
| Tfok62 | Legendre Symbol | 35 | |
| yvssine | Legendre Symbol | 35 | |
| AndrewS | Base64 | 10 | |
| PikaLuvsKetchup | Great Snakes | 3 | |
| mustafa_algasham | Factoring | 15 | |
| mustafa_algasham | Monoprime | 30 | |
| Mohammedosam | Signing Server | 60 | |
| Eselfin31 | Hex | 5 | |
| Eselfin31 | ASCII | 5 | |
| Fukurou | Pad Thai | 80 | |
| mustafa_algasham | RSA Signatures | 25 | |
| yvssine | Quadratic Residues | 25 | |
| mustafa_algasham | Jack's Birthday Confusion | 30 | |
| mustafa_algasham | Jack's Birthday Hash | 20 | |
| mustafa_algasham | Working with Fields | 10 | |
| Mohammedosam | Beatboxer | 150 | |
| mustafa_algasham | Deriving Symmetric Keys | 40 | |
| mustafa_algasham | Computing Shared Secrets | 30 | |
| mustafa_algasham | Computing Public Values | 25 | |
| PikaLuvsKetchup | Finding Flags | 2 | |
| mustafa_algasham | Generators of Groups | 20 | |
| Amro_Hussein | JSON in JSON | 40 | |
| Cano_il_Marsi | Legendre Symbol | 35 | |
| oxryta | Finding Flags | 2 | |
| mustafa_algasham | RSA Decryption | 20 | |
| mustafa_algasham | Private Keys | 20 | |
| mustafa_algasham | Euler's Totient | 20 | |
| mustafa_algasham | Public Keys | 15 | |
| mustafa_algasham | Modular Exponentiation | 10 | |
| mustafa_algasham | Modular Inverting | 25 | |
| mustafa_algasham | Modular Arithmetic 2 | 20 | |
| mustafa_algasham | Modular Arithmetic 1 | 20 | |
| mustafa_algasham | Extended GCD | 20 |
You are now level Current level