2022 zer0pts CTF writeup
| Name | Category | Points | Solves |
|---|---|---|---|
| Anti-Fermat | CRYPTO | 90 / 500 | 125 |
I invented Anti-Fermat Key Generation for RSA cipher since I’m scared of the Fermat’s Factorization Method.
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| CurveCrypto | CRYPTO | 156 / 500 | 36 |
EllipticCurve can be adaptive to encryption.
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| EDDH | CRYPTO | 188 / 500 | 24 |
I heard about that EdDSA is more secure than ordinal ECDSA. So ECDH on Edwards Curve too?
nc crypto.ctf.zer0pts.com 10929
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| OK | CRYPTO | 289 / 500 | 9 |
GOLDEN SUN provides you a key and SILVER MOON provides you a ciphertext.
nc crypto.ctf.zer0pts.com 10333
See attachments.
See solutions.
| Name | Category | Points | Solves |
|---|---|---|---|
| Karen | CRYPTO | 304 / 500 | 8 |
None.
See attachments.
See solutions.
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