DeDRM_tools/DeDRM_plugin/ignoblekeyAndroid.py

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'''
Extracts the user's ccHash from an .adobe-digital-editions folder
typically included in the Nook Android app's data folder.
Based on ignoblekeyWindowsStore.py, updated for Android by noDRM.
'''
import sys
import os
import base64
try:
from Cryptodome.Cipher import AES
except ImportError:
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from Crypto.Cipher import AES
import hashlib
from lxml import etree
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def unpad(data, padding=16):
if sys.version_info[0] == 2:
pad_len = ord(data[-1])
else:
pad_len = data[-1]
return data[:-pad_len]
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PASS_HASH_SECRET = "9ca588496a1bc4394553d9e018d70b9e"
def dump_keys(path_to_adobe_folder):
activation_path = os.path.join(path_to_adobe_folder, "activation.xml")
device_path = os.path.join(path_to_adobe_folder, "device.xml")
if not os.path.isfile(activation_path):
print("Nook activation file is missing: %s\n" % activation_path)
return []
if not os.path.isfile(device_path):
print("Nook device file is missing: %s\n" % device_path)
return []
# Load files:
activation_xml = etree.parse(activation_path)
device_xml = etree.parse(device_path)
# Get fingerprint:
device_fingerprint = device_xml.findall(".//{http://ns.adobe.com/adept}fingerprint")[0].text
device_fingerprint = base64.b64decode(device_fingerprint).hex()
hash_key = hashlib.sha1(bytearray.fromhex(device_fingerprint + PASS_HASH_SECRET)).digest()[:16]
hashes = []
for pass_hash in activation_xml.findall(".//{http://ns.adobe.com/adept}passHash"):
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try:
encrypted_cc_hash = base64.b64decode(pass_hash.text)
cc_hash = unpad(AES.new(hash_key, AES.MODE_CBC, encrypted_cc_hash[:16]).decrypt(encrypted_cc_hash[16:]))
hashes.append(base64.b64encode(cc_hash).decode("ascii"))
#print("Nook ccHash is %s" % (base64.b64encode(cc_hash).decode("ascii")))
except:
pass
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return hashes
if __name__ == "__main__":
print("No standalone version available.")