mirror of
https://github.com/y9nhjy/Proxifier-Keygen.git
synced 2026-10-17 05:12:09 +08:00
y9nhjy
69 lines
1.6 KiB
Python
69 lines
1.6 KiB
Python
"""
|
|
本脚本为Proxifier中key的check算法，不是项目主要内容，仅供逆向学习参考
|
|
"""
|
|
|
|
|
|
def handle(s):
|
|
res = 0
|
|
for i in range(len(s) - 1, -1, -1):
|
|
res *= 32
|
|
t = ord(s[i])
|
|
if s[i] == 'W':
|
|
continue
|
|
elif s[i] == 'X':
|
|
res += 24
|
|
elif s[i] == 'Y':
|
|
res += 1
|
|
elif s[i] == 'Z':
|
|
res += 18
|
|
elif s[i] in "0123456789":
|
|
res += t - 48
|
|
else:
|
|
res += t - 55
|
|
return res
|
|
|
|
|
|
def CRC32_like(n):
|
|
res = 0
|
|
for i in range(12):
|
|
v2 = ((n >> (8 * i)) & 0xff) << 24
|
|
if i:
|
|
res ^= v2
|
|
else:
|
|
res = (~v2) & 0xFFFFFFFF
|
|
for j in range(8):
|
|
res *= 2
|
|
if res >= 0xFFFFFFFF:
|
|
res &= 0xFFFFFFFF
|
|
res ^= 0x4C11DB7
|
|
return res
|
|
|
|
|
|
# 替换这里的key为想要验证的key
|
|
key = 'QSC6X-CWAAK-4D62C-OAXDD-S9GE1'
|
|
key = key.replace('-', '')
|
|
key = key[:2] + key[14] + key[3:]
|
|
# 末尾5位
|
|
v17 = handle(key[20:25])
|
|
v18 = v17 ^ (v17 << 7)
|
|
# 开头7位
|
|
v23 = handle(key[:7])
|
|
# 开头8~14位
|
|
v27 = handle(key[7:7 + 7])
|
|
low_4B = v18 ^ v23 ^ 0x12345678
|
|
mid_4B = v18 ^ v27 ^ 0x87654321
|
|
high_4B = handle(key[15:20])
|
|
|
|
print("v17 :" + hex(v17))
|
|
print("v18 :" + hex(v18))
|
|
print("low_4B :" + hex(low_4B))
|
|
print("mid_4B :" + hex(mid_4B))
|
|
print("high_4B :" + hex(high_4B))
|
|
print(hex((high_4B << 64) + (mid_4B << 32) + low_4B))
|
|
|
|
res = CRC32_like((high_4B << 64) + (mid_4B << 32) + low_4B)
|
|
print(hex(res))
|
|
print(hex(res & 0x1FFFFFF))
|
|
assert v17 == (res & 0x1FFFFFF)
|
|
print("验证成功")
|