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ctf-tiebreaker

Pirate's Treasure

My pirate friend told me "Thar's buried booty hidden in this zip file!" Could you help find it for him?

Mystery of the French

"J'ai caché quelque chose de secret à travers mes mystérieuses manières françaises", exclaimed my French enemy. (For those of you who don't speak French, that means "I have hidden something secret through my mysterious french ways!") He told me glga{w4vk3_fm3u} (he can pronounce that) and told me the key is BAGUETTE. Can you figure it out?

School Employee

An employee of the school scoffed at me while I struggle to open the locked door of a classroom. He did give me the key, though: fake. See if you can figure out how to unlock this lock.

RSA Encryption

If n=45 and q=5. What is (p*6)+2?
If n=77 and p=11. What is (q*15)+3?
If n=485 and q=5. What is p?
If n=115 and q=5. What is the totient+27?
If n=115 and p=23. What is the totient+28?
If n=115 and e=47. What is d + 12?
If p=5 and q=2 and e=3. What is d + 92?
Here's a freebie, the last one is: 115!

Now take each of the numbers and translate them to an ascii character.

Hint: RSA Quick Reference: https://simple.wikipedia.org/wiki/RSA_algorithm

For RSA Encryption, the flag is in the format of flag{puttheflaghere} (there are no spaces or special characters of any kind).


Submit your answers here!