2022 HITCON CTF writeup
| Name | Category | Points | Solves |
|---|---|---|---|
| BabySSS | CRYPTO | 172 / 500 | 94 |
I implemented a toy Shamir’s Secret Sharing for fun. Can you help me check is there any issues with this?
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| Secret | CRYPTO | 232 / 500 | 41 |
Too many secrets …
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| Superprime | CRYPTO | 248 / 500 | 33 |
Yet another cool prime generation method.
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| Easy NTRU | CRYPTO | 280 / 500 | 21 |
Is NTRU breakable?
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| Everywhere | CRYPTO | 342 / 500 | 9 |
Another easy NTRU!
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| Chimera | CRYPTO | 400 / 500 | 4 |
The Chimera, also Chimaera, according to Greek mythology, was a monstrous fire-breathing hybrid creature, composed of different animal parts from Lycia, Asia Minor. It is usually depicted as a lion, with the head of a goat protruding from its back, and a tail that might end with a snake’s head.
See attachments.
See solutions.
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