| Date | User | Challenge | Score |
| CamilleFerros | JWT Secrets | 25 | |
| salem616 | XOR Starter | 10 | |
| CamilleFerros | No Way JOSE | 20 | |
| ayoub04 | Inferius Prime | 30 | |
| ayoub04 | Square Eyes | 35 | |
| K11 | Bruce Schneier's Password: Part 2 | 250 | |
| CamilleFerros | JWT Sessions | 10 | |
| l7miz_ED | Bytes and Big Integers | 10 | |
| CamilleFerros | Token Appreciation | 5 | |
| aleksandra471 | Secure Protocols | 5 | |
| l7miz_ED | Base64 | 10 | |
| l7miz_ED | Hex | 5 | |
| OaksAd | Secure Protocols | 5 | |
| shadowguy | Bounded Noise | 50 | |
| l7miz_ED | ASCII | 5 | |
| crypto_exercise | Bytes and Big Integers | 10 | |
| AM0GUS | Base64 | 10 | |
| catalin_munteanu | Everything is Still Big | 100 | |
| l7miz_ED | Great Snakes | 3 | |
| l7miz_ED | Finding Flags | 2 | |
| catalin_munteanu | Crossed Wires | 100 | |
| ubercustomer1337 | Greatest Common Divisor | 15 | |
| catalin_munteanu | Everything is Big | 70 | |
| aleksandra471 | JSON in JSON | 40 | |
| AM0GUS | Hex | 5 | |
| catalin_munteanu | Modulus Inutilis | 50 | |
| catalin_munteanu | Salty | 20 | |
| catalin_munteanu | Manyprime | 40 | |
| AM0GUS | ASCII | 5 | |
| catalin_munteanu | Square Eyes | 35 | |
| catalin_munteanu | Monoprime | 30 | |
| OaksAd | JSON in JSON | 40 | |
| catalin_munteanu | Inferius Prime | 30 | |
| ubercustomer1337 | Symmetry | 50 | |
| TerezaGr_p22037 | Extended GCD | 20 | |
| OaksAd | RSA or HMAC? | 35 | |
| Ilikepikles | Bytes and Big Integers | 10 | |
| Noano2015 | CTRIME | 70 | |
| C0n0r92 | Manyprime | 40 | |
| Ilikepikles | Base64 | 10 | |
| catalin_munteanu | Factoring | 15 | |
| fbourdot | Paper Plane | 120 | |
| aleksandra471 | RSA or HMAC? | 35 | |
| C0n0r92 | Square Eyes | 35 | |
| catalin_munteanu | RSA Signatures | 25 | |
| catalin_munteanu | RSA Decryption | 20 | |
| C0n0r92 | Monoprime | 30 | |
| Sakurine | Favourite byte | 20 | |
| catalin_munteanu | Private Keys | 20 | |
| jhh0406 | Proofs of Knowledge | 20 |
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