post20190428进度

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20190428进度

练习了六个python编程题目，继续读python核心编程

Pkcrake

利用advanced zip password recovered 中plain-text模式，

Imgur

在解出的Encrypted.zip文件中secrect.txt即得flag Imgur

Babybase

利用request和 base 对txt文件进行解码，因为不确定为base64或base32或16 ，利用脚本：

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import base64
import requests

def download(url):
    return requests.get(url).text

steps = []
url = "https://oj.blue-whale.me/files/static/uploads/bbb45d3f0b5da971903660c57ac8780f/base.txt"

print "[+] Downloading encrypted file..."
p = download(url)
n = ""

while True:
    # Base16
    try:
        print "[?] using base16 deocde"
        n = base64.b16decode(p)
        print "[+] %s" % (n)
        steps.append(16)
        p = n
        continue
    except:
        pass
    # Base32
    try:
        print "[?] using base32 deocde"
        n = base64.b32decode(p)
        print "[+] %s" % (n)
        steps.append(32)
        p = n
        continue
    except:
        pass
    # Base64
    try:
        print "[?] using base64 deocde"
        n = base64.b64decode(p)
        print "[+] %s" % (n)
        steps.append(64)
        p = n
        continue
    except:
        pass
    break

print "[+] flag found : %s" % (n)
print "[+] steps : %s" % (steps)

解得flag Imgur