Note: The flag is the entire thing decrypted eps1.7_wh1ter0se_2b007cf0ba9881d954e85eb475d0d5e4.m4v
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Pobieramy wskazany plik. Jego zawartość to:
EOY XF, AY VMU M UKFNY TOY YF UFWHYKAXZ EAZZHN. UFWHYKAXZ ZNMXPHN. UFWHYKAXZ
EHMOYACOI. VH'JH EHHX CFTOUHP FX VKMY'U AX CNFXY FC OU. EOY VH KMJHX'Y EHHX
IFFQAXZ MY VKMY'U MEFJH OU.
Nie jest to cezar ani nic podobnego, ale wygląda na jakiś szyfr podstawny. Po chwili kombinowania, postanawiamy wrzucić to do jakiegoś odpowiedniego solvera, z dobrym skutkiem:
BUT NO, IT WAS A SHORT CUT TO SOMETHING BIGGER. SOMETHING GRANDER. SOMETHING
BEAUTIFUL. WE'VE BEEN FOCUSED ON WHAT'S IN FRONT OF US. BUT WE HAVEN'T BEEN
LOOKING AT WHAT'S ABOVE US.
Mamy flagę i 50 punktów
We download provided file. Its contents:
EOY XF, AY VMU M UKFNY TOY YF UFWHYKAXZ EAZZHN. UFWHYKAXZ ZNMXPHN. UFWHYKAXZ
EHMOYACOI. VH'JH EHHX CFTOUHP FX VKMY'U AX CNFXY FC OU. EOY VH KMJHX'Y EHHX
IFFQAXZ MY VKMY'U MEFJH OU.
It doesn't seem to be a Caesar cipher or anything of this sort, however it does look like a substitution cipher. After a while trying to crack it up we decide to upload the input to an online cipher solver, with good results:
BUT NO, IT WAS A SHORT CUT TO SOMETHING BIGGER. SOMETHING GRANDER. SOMETHING
BEAUTIFUL. WE'VE BEEN FOCUSED ON WHAT'S IN FRONT OF US. BUT WE HAVEN'T BEEN
LOOKING AT WHAT'S ABOVE US.
We have the flag and 50 points.