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Python 3 fixes

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This commit is contained in:
Aldo Bleeker
2021-12-28 18:34:11 +01:00
committed by noDRM
parent e0fcd99bcb
commit 5ace15e912
3 changed files with 20 additions and 8 deletions
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10
DeDRM_plugin/alfcrypto.py
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@@ -207,8 +207,9 @@ def _load_python_alfcrypto():
def ctx_init(self, key):
ctx1 = 0x0CAFFE19E
for keyChar in key:
keyByte = ord(keyChar)
if isinstance(key, str):
key = key.encode('latin-1')
for keyByte in key:
ctx2 = ctx1
ctx1 = ((((ctx1 >>2) * (ctx1 >>7))&0xFFFFFFFF) ^ (keyByte * keyByte * 0x0F902007)& 0xFFFFFFFF )
self._ctx = [ctx1, ctx2]
@@ -220,8 +221,9 @@ def _load_python_alfcrypto():
ctx1 = ctx[0]
ctx2 = ctx[1]
plainText = ""
for dataChar in data:
dataByte = ord(dataChar)
if isinstance(data, str):
data = data.encode('latin-1')
for dataByte in data:
m = (dataByte ^ ((ctx1 >> 3) &0xFF) ^ ((ctx2<<3) & 0xFF)) &0xFF
ctx2 = ctx1
ctx1 = (((ctx1 >> 2) * (ctx1 >> 7)) &0xFFFFFFFF) ^((m * m * 0x0F902007) &0xFFFFFFFF)