| Date | User | Challenge | Score |
| g4dZ0r | Modular Exponentiation | 10 | |
| lapa | Hex | 5 | |
| Boocester | Finding Flags | 2 | |
| KraVer | XOR Starter | 10 | |
| huitrebleu | Modular Square Root | 35 | |
| SCHROBB | Passwords as Keys | 50 | |
| Korkior | Exceptional Curves | 100 | |
| feynhat | Efficient Exchange | 50 | |
| R0ry | Finding Flags | 2 | |
| lapa | ASCII | 5 | |
| Nimadli | RSA Decryption | 20 | |
| Oblivi0n | Monoprime | 30 | |
| Nimadli | Private Keys | 20 | |
| ds0xxd3r | Manyprime | 40 | |
| lapa | Great Snakes | 3 | |
| Khevin07k | Bytes and Big Integers | 10 | |
| craezed | XOR Starter | 10 | |
| lichunsheng | Chinese Remainder Theorem | 40 | |
| Nimadli | Euler's Totient | 20 | |
| Oblivi0n | Factoring | 15 | |
| Nimadli | Public Keys | 15 | |
| Nimadli | Modular Exponentiation | 10 | |
| Vvillanious | Base64 | 10 | |
| ds0xxd3r | Monoprime | 30 | |
| Oblivi0n | RSA Signatures | 25 | |
| Nimadli | Jack's Birthday Confusion | 30 | |
| hata | Bean Counter | 60 | |
| cyan1228 | ECB CBC WTF | 55 | |
| lapa | Finding Flags | 2 | |
| Sudo_Rajkumar | Network Attacks | 5 | |
| Nimadli | Jack's Birthday Hash | 20 | |
| Vvillanious | Hex | 5 | |
| Htet | Base64 | 10 | |
| jtalverag0807 | Finding Flags | 2 | |
| sejong050409 | Efficient Exchange | 50 | |
| Oblivi0n | RSA Decryption | 20 | |
| dkurbi | Chinese Remainder Theorem | 40 | |
| Nimadli | Modular Inverting | 25 | |
| Oblivi0n | Private Keys | 20 | |
| Nimadli | Modular Arithmetic 2 | 20 | |
| Nimadli | Modular Arithmetic 1 | 20 | |
| Oblivi0n | Euler's Totient | 20 | |
| siriusraven | Passwords as Keys | 50 | |
| Nimadli | Extended GCD | 20 | |
| Htet | Beatboxer | 150 | |
| aola | Hex | 5 | |
| ds0xxd3r | Factoring | 15 | |
| Oblivi0n | Public Keys | 15 | |
| Oblivi0n | Modular Exponentiation | 10 | |
| f2ri2 | Modular Square Root | 35 |
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