| Date | User | Challenge | Score |
| evitriad | Computing Shared Secrets | 30 | |
| evitriad | Computing Public Values | 25 | |
| BenJix | You either know, XOR you don't | 30 | |
| The_Pug | Salty | 20 | |
| evitriad | Generators of Groups | 20 | |
| Hadnaki | Favourite byte | 20 | |
| evitriad | Working with Fields | 10 | |
| NikitaKucherov | Encoding Challenge | 40 | |
| Chopy | RSA Signatures | 25 | |
| evitriad | RSA Decryption | 20 | |
| BenJix | Favourite byte | 20 | |
| evitriad | Private Keys | 20 | |
| Akylbek | Base64 | 10 | |
| BenJix | XOR Properties | 15 | |
| ozex | You either know, XOR you don't | 30 | |
| evitriad | Euler's Totient | 20 | |
| BenJix | XOR Starter | 10 | |
| evitriad | Public Keys | 15 | |
| ZhuangBin | XOR Starter | 10 | |
| evitriad | Modular Exponentiation | 10 | |
| stamatia_psalti | Working with Fields | 10 | |
| An1 | Edwards Goes Degenerate | 100 | |
| ZhuangBin | Bytes and Big Integers | 10 | |
| prl769 | Chinese Remainder Theorem | 40 | |
| evitriad | Jack's Birthday Confusion | 30 | |
| Chopy | RSA Decryption | 20 | |
| Hadnaki | XOR Properties | 15 | |
| duarteoliper | Greatest Common Divisor | 15 | |
| Bang30087 | Chinese Remainder Theorem | 40 | |
| BenJix | Passwords as Keys | 50 | |
| Chopy | Euler's Totient | 20 | |
| thaggs1066 | Round Keys | 20 | |
| Chopy | Public Keys | 15 | |
| stamatia_psalti | Modulus Inutilis | 50 | |
| BenJix | Modes of Operation Starter | 15 | |
| Kouakoubakaaa | Modular Inverting | 25 | |
| Chopy | Modular Exponentiation | 10 | |
| Kouakoubakaaa | Modular Arithmetic 2 | 20 | |
| Kouakoubakaaa | Modular Arithmetic 1 | 20 | |
| Meen4 | Symmetry | 50 | |
| Cat87399 | Great Snakes | 3 | |
| BenJix | Bringing It All Together | 50 | |
| Kouakoubakaaa | Extended GCD | 20 | |
| Kouakoubakaaa | Greatest Common Divisor | 15 | |
| stamatia_psalti | Salty | 20 | |
| ozex | Favourite byte | 20 | |
| Kouakoubakaaa | You either know, XOR you don't | 30 | |
| Chopy | Round Keys | 20 | |
| Nama | RSA Signatures | 25 | |
| BenJix | Diffusion through Permutation | 30 |
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