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