from gmssl.sm4 import CryptSM4, SM4_ENCRYPT, SM4_DECRYPT
import binascii
from heapq import heappush, heappop
from collections import OrderedDict
import time
import requests
def decrypt(iv, value):
s = "Dem0_wants_girls"
keys = [ord(i) for i in s]
key = bytes(b % 256 for b in keys)
crypt_sm4 = CryptSM4()
crypt_sm4.set_key(key, SM4_DECRYPT)
d_value = crypt_sm4.crypt_cbc(iv, bytes.fromhex(value))
return d_value
if __name__ == "__main__":
with open(r"F:\SafeIm\1.txt", mode="r") as f:
content = f.read()
iv_xor = b"\x37\x0c\x52\x00\x6e\x18\xa4\x00\xa5\x24\xf6\x00\xdc\x30\x48\x01"
count = 0
for i in content.split("\n"):
desc = i[:64]
encontent = i[64:]
enciv = encontent[:32]
encocontent = encontent[32:]
encivb = bytes.fromhex(enciv)
iv = bytes([encivb[i] ^ iv_xor[i] for i in range(16)])
content = decrypt(iv, encocontent)
print(bytes.fromhex(desc[24:]).replace(b"\x00", b"").replace(b'\x0fFZ\xe7', b''), end=":")
if b'PNG' in content:
filename = r"F:\SafeIm\other\%d.png" % count
print("是png")
elif b'\xff\xd8\xff\xe1' in content:
filename = r"F:\SafeIm\other\%d.jpg" % count
print("是 jpg")
else:
filename = r"F:\SafeIm\other\%d.txt" % count
print(content.replace(b"\x00", b"").decode())
with open(filename, mode="wb") as f:
f.write(content)
count += 1
[复制链接]
发表于 2022-1-9 17:44
不清楚