Challenge這題給了一個圖片 一開始看到圖片，就很直覺的 binwalk -e 發現有壓縮檔在裡面 還有加密？！ 未看先猜是偽加密，後來發現不是 之後找到裡面的圖檔，用 pkcrack 1pkcrack -C flag.zip -c 'backup/Avengers_Inf ...

Challengeserver.py 這題一堆廢話 XDD 重點是這個 sign 不是 signature，只是單純 pow(m,d,n) 1234def _sign(self, m): # alias for _decrypt if not self.has_private(): ...

Challenge很單純的，Hash Collision。 12345678for c in itertools.product(string.digits + string.ascii_letters, repeat=6): count += 1 tail = switchBS ...

Challengeencrypt.pyflag-encrypted 關鍵就是 flag.startswith(b'AIS3{') 與密文 XOR 可得到 key 的前五 byte 為 : \x16\t|\xc7\xdd 12345678length = 0count ...

Challenge題目給了一個音源檔 svega.mp3 這題 上網 google svega 可以再 wiki CTF 上找到解法 找到 MP3Stego 連範例音樂檔都一樣 跟著使用方法，密碼猜個 ‘無’ 就能解出 Flag … Flag : AIS3{I_HearD_imPlIeD ...

Easy Pisy - Crypto , WebEnter http://5a7f02d0.quals2018.oooverflow.io you will see Sign your payload and Execute your signed payload two file upl ...

Challenge1Break the cipher. Given : transducipher.py SolutionSorry QQ… Not yet … solve.py : solve.py

Challenge12Forget ssh, this is a much more secure shell. Server running at macsh.chal.pwning.xxx:64791 This Challenge need you bypass the MAC che ...

ChallengeFile : Iran.py SolveTake a look on the given code, Iran.py 123assert ((p-1) % r)**2 + ((q-1) % s)**4 + ((r**3 - 1) % p)**8 + ((s**3 - 1) ...

Challenge :Uncle Sam needs your help! (With a png file) I think … we familiar with code, not png LoL.Give it to Online OCR first. Algorithm1234567 ...