200. Mary Queen Mary Queen of Scots goes chinese. We capture secret message from prison where Mary Queen stands. Help us figure out what message means. ファイルを開くとE4 xx yyな文字とスペースが並んでいることがわかります。 何が何だかさっぱ…

100. MD5 Server (python27.quals.ructf.org:12337) accepts only authorized messages. It works like this: buf = c.recv(4096) digest, msg = buf.split(" ", 1) if (digest == md5(password+msg).hexdigest()): #here I send a secret else: c.send("Wro…

100. Favourite Book Have you ever met Olimpiada Balalaykina? She is a young girl who likes to chat and dreams to meet Pavel Durov. We'd like to know her favorite book. これ、だいぶ困りました。 ぐぐってもFacebookでも全く出てこないので放置ゲ…