squ1rrel CTF 2024

Placement: #6/378 All, #2/44 Student
Winnings: $150

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Thoughts:

Another CTF with reCAPTCHA the Flag! Cleared crypto (the challenges were relatively easy) and spent most of my time trying to solve misc/pdf-fun and misc/squirrel-terminal. Also tried to solve some of the harder pwns but not good enough T^T. Only crypto writeups because pdf-fun and squirrel-terminal were basically Google-search challs

Writeups

• Lazy Rsa
  [110] <crypto/> <rsa/> <factordb/>
• Partial Rsa
  [450] <crypto/> <rsa/> <coppersmith/> <stereotyped-message-attack/>
• Rsa Rsa Rsa
  [182] <crypto/> <rsa/> <hastad-broadcast-attack/>
• Squ1rrel Lottery
  [469] <crypto/>
• Squ1rrel Treasury
  [448] <crypto/> <aes/> <cbc/>