From b652ee2f416dd01f594021651e3c4f7e678ce82d Mon Sep 17 00:00:00 2001 From: Cryp Toon Date: Thu, 7 Mar 2024 22:56:59 +0100 Subject: [PATCH] Add method to decrypt ec multiplied bip38 keys --- bitcoinlib/encoding.py | 91 - bitcoinlib/keys.py | 193 ++ index.html | 5574 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 5767 insertions(+), 91 deletions(-) create mode 100644 index.html diff --git a/bitcoinlib/encoding.py b/bitcoinlib/encoding.py index 5281c838..d6b84b61 100644 --- a/bitcoinlib/encoding.py +++ b/bitcoinlib/encoding.py @@ -970,97 +970,6 @@ def aes_decrypt(encrypted_data, key): return res -def bip38_decrypt(encrypted_privkey, password): - """ - BIP0038 non-ec-multiply decryption. Returns WIF private key. - Based on code from https://github.com/nomorecoin/python-bip38-testing - This method is called by Key class init function when importing BIP0038 key. - - :param encrypted_privkey: Encrypted private key using WIF protected key format - :type encrypted_privkey: str - :param password: Required password for decryption - :type password: str - - :return tupple (bytes, bytes): (Private Key bytes, 4 byte address hash for verification) - """ - d = change_base(encrypted_privkey, 58, 256) - identifier = d[0:2] - flagbyte = d[2:3] - d = d[3:] - # ec_multiply = False - if identifier == b'\x01\x43': - # ec_multiply = True - raise EncodingError("EC multiply BIP38 keys are not supported at the moment") - elif identifier != b'\x01\x42': - raise EncodingError("Unknown BIP38 identifier, value must be 0x0142 (non-EC-multiplied) or " - "0x0143 (EC-multiplied)") - if flagbyte == b'\xc0': - compressed = False - elif flagbyte == b'\xe0' or flagbyte == b'\x20': - compressed = True - else: - raise EncodingError("Unrecognised password protected key format. Flagbyte incorrect.") - if isinstance(password, str): - password = password.encode('utf-8') - addresshash = d[0:4] - d = d[4:-4] - - key = scrypt_hash(password, addresshash, 64, 16384, 8, 8) - # try: - # key = scrypt(password, addresshash, 64, 16384, 8, 8) - # except Exception: - # key = scrypt.hash(password, addresshash, 16384, 8, 8, 64) - derivedhalf1 = key[0:32] - derivedhalf2 = key[32:64] - encryptedhalf1 = d[0:16] - encryptedhalf2 = d[16:32] - # aes = pyaes.AESModeOfOperationECB(derivedhalf2) - aes = AES.new(derivedhalf2, AES.MODE_ECB) - decryptedhalf2 = aes.decrypt(encryptedhalf2) - decryptedhalf1 = aes.decrypt(encryptedhalf1) - priv = decryptedhalf1 + decryptedhalf2 - priv = (int.from_bytes(priv, 'big') ^ int.from_bytes(derivedhalf1, 'big')).to_bytes(32, 'big') - # if compressed: - # # FIXME: This works but does probably not follow the BIP38 standards (was before: priv = b'\0' + priv) - # priv += b'\1' - return priv, addresshash, compressed - - -def bip38_encrypt(private_hex, address, password, flagbyte=b'\xe0'): - """ - BIP0038 non-ec-multiply encryption. Returns BIP0038 encrypted private key - Based on code from https://github.com/nomorecoin/python-bip38-testing - - :param private_hex: Private key in hex format - :type private_hex: str - :param address: Address string - :type address: str - :param password: Required password for encryption - :type password: str - :param flagbyte: Flagbyte prefix for WIF - :type flagbyte: bytes - - :return str: BIP38 password encrypted private key - """ - if isinstance(address, str): - address = address.encode('utf-8') - if isinstance(password, str): - password = password.encode('utf-8') - addresshash = double_sha256(address)[0:4] - key = scrypt_hash(password, addresshash, 64, 16384, 8, 8) - derivedhalf1 = key[0:32] - derivedhalf2 = key[32:64] - aes = AES.new(derivedhalf2, AES.MODE_ECB) - # aes = pyaes.AESModeOfOperationECB(derivedhalf2) - encryptedhalf1 = \ - aes.encrypt((int(private_hex[0:32], 16) ^ int.from_bytes(derivedhalf1[0:16], 'big')).to_bytes(16, 'big')) - encryptedhalf2 = \ - aes.encrypt((int(private_hex[32:64], 16) ^ int.from_bytes(derivedhalf1[16:32], 'big')).to_bytes(16, 'big')) - encrypted_privkey = b'\x01\x42' + flagbyte + addresshash + encryptedhalf1 + encryptedhalf2 - encrypted_privkey += double_sha256(encrypted_privkey)[:4] - return base58encode(encrypted_privkey) - - def scrypt_hash(password, salt, key_len=64, N=16384, r=8, p=1, buflen=64): """ Wrapper for Scrypt method for scrypt or Cryptodome library diff --git a/bitcoinlib/keys.py b/bitcoinlib/keys.py index 8b7bedf2..f5a5bbbb 100644 --- a/bitcoinlib/keys.py +++ b/bitcoinlib/keys.py @@ -456,6 +456,199 @@ def path_expand(path, path_template=None, level_offset=None, account_id=0, cosig return npath +def bip38_decrypt(encrypted_privkey, password): + """ + BIP0038 non-ec-multiply decryption. Returns WIF private key. + Based on code from https://github.com/nomorecoin/python-bip38-testing + This method is called by Key class init function when importing BIP0038 key. + + :param encrypted_privkey: Encrypted private key using WIF protected key format + :type encrypted_privkey: str + :param password: Required password for decryption + :type password: str + + :return tupple (bytes, bytes): (Private Key bytes, 4 byte address hash for verification) + """ + d = change_base(encrypted_privkey, 58, 256) + identifier = d[0:2] + flagbyte = d[2:3] + address_hash: bytes = d[3:7] + if identifier == BIP38_EC_MULTIPLIED_PRIVATE_KEY_PREFIX: + owner_entropy: bytes = d[7:15] + encrypted_half_1_half_1: bytes = d[15:23] + encrypted_half_2: bytes = d[23:-4] + + lot_and_sequence = None + if flagbyte in [BIP38_MAGIC_LOT_AND_SEQUENCE_UNCOMPRESSED_FLAG, BIP38_MAGIC_LOT_AND_SEQUENCE_COMPRESSED_FLAG, + b'\x0c', b'\x14', b'\x1c', b'\x2c', b'\x34', b'\x3c']: + owner_salt: bytes = owner_entropy[:4] + lot_and_sequence = owner_entropy[4:] + else: + owner_salt: bytes = owner_entropy + + # pass_factor: bytes = scrypt.hash(unicodedata.normalize("NFC", passphrase), owner_salt, 16384, 8, 8, 32) + pass_factor = scrypt_hash(password, owner_salt, 32, 16384, 8, 8) + if lot_and_sequence: + pass_factor: bytes = double_sha256(pass_factor + owner_entropy) + if int.from_bytes(pass_factor, 'big') == 0 or int.from_bytes(pass_factor, 'big') >= secp256k1_n: + raise ValueError("Invalid EC encrypted WIF (Wallet Important Format)") + + # pre_public_key: str = private_key_to_public_key( + # private_key=pass_factor, public_key_type="compressed" + # ) + pre_public_key = HDKey(pass_factor).public_byte + salt = address_hash + owner_entropy + encrypted_seed_b: bytes = scrypt_hash(pre_public_key, salt, 64, 1024, 1, 1) + key: bytes = encrypted_seed_b[32:] + + # aes = AES.new(key, AES.MODE_ECB) + # encrypted_half_1 = \ + # aes.encrypt( + # (int.from_bytes(seed_b[:16], 'big') ^ int.from_bytes(derived_half_1, 'big')).to_bytes(16, 'big')) + # encrypted_half_2 = \ + # aes.encrypt((int.from_bytes((encrypted_half_1[8:] + seed_b[16:]), 'big') ^ + # int.from_bytes(derived_half_2, 'big')).to_bytes(16, 'big')) + # encrypted_wif = pubkeyhash_to_addr_base58(flag + address_hash + owner_entropy + encrypted_half_1[:8] + + # encrypted_half_2, prefix=BIP38_EC_MULTIPLIED_PRIVATE_KEY_PREFIX) + + # aes: AESModeOfOperationECB = AESModeOfOperationECB(key) + aes = AES.new(key, AES.MODE_ECB) + + # encrypted_half_1_half_2_seed_b_last_3 = integer_to_bytes( + # bytes_to_integer(aes.decrypt(encrypted_half_2)) ^ bytes_to_integer(encrypted_seed_b[16:32]) + # ) + encrypted_half_1_half_2_seed_b_last_3 = ( + int.from_bytes(aes.decrypt(encrypted_half_2), 'big') ^ + int.from_bytes(encrypted_seed_b[16:32], 'big')).to_bytes(16, 'big') + encrypted_half_1_half_2: bytes = encrypted_half_1_half_2_seed_b_last_3[:8] + encrypted_half_1: bytes = ( + encrypted_half_1_half_1 + encrypted_half_1_half_2 + ) + + seed_b: bytes = (( + int.from_bytes(aes.decrypt(encrypted_half_1), 'big') ^ + int.from_bytes(encrypted_seed_b[:16], 'big')).to_bytes(16, 'big') + + encrypted_half_1_half_2_seed_b_last_3[8:]) + + factor_b: bytes = double_sha256(seed_b) + if int.from_bytes(factor_b, 'big') == 0 or int.from_bytes(factor_b, 'big') >= secp256k1_n: + raise ValueError("Invalid EC encrypted WIF (Wallet Important Format)") + + # private_key: bytes = multiply_private_key(pass_factor, factor_b) + private_key = HDKey(pass_factor) * HDKey(factor_b) + # public_key: str = private_key_to_public_key( + # private_key=private_key, public_key_type="uncompressed" + # ) + # wif_type: Literal["wif", "wif-compressed"] = "wif" + # public_key_type: Literal["uncompressed", "compressed"] = "uncompressed" + compressed = False + public_key = private_key.public_uncompressed_hex + # if bytes_to_integer(flag) in FLAGS["compression"]: + if flagbyte in [BIP38_MAGIC_LOT_AND_SEQUENCE_COMPRESSED_FLAG, BIP38_MAGIC_LOT_AND_SEQUENCE_COMPRESSED_FLAG, + b'\x28', b'\x2c', b'\x30', b'\x34', b'\x38', b'\x3c', b'\xe0', b'\xe8', b'\xf0', b'\xf8']: + public_key: str = private_key.public_compressed_hex + public_key_type = "compressed" + wif_type = "wif-compressed" + compressed = True + + # address: str = public_key_to_addresses(public_key=public_key, network=network) + address = private_key.address(compressed=compressed) + address_hash_check = double_sha256(bytes(address, 'utf8'))[:4] + # if get_checksum(get_bytes(address, unhexlify=False)) == address_hash: + if address_hash_check == address_hash: + # wif: str = private_key_to_wif( + # private_key=private_key, wif_type=wif_type, network=network + # ) + wif = private_key.wif() + lot = None + sequence = None + # if detail: + if lot_and_sequence: + # sequence: int = bytes_to_integer(lot_and_sequence) % 4096 + # lot: int = (bytes_to_integer(lot_and_sequence) - sequence) // 4096 + sequence = int.from_bytes(lot_and_sequence, 'big') % 4096 + lot = int.from_bytes(lot_and_sequence, 'big') // 4096 + # return dict( + # wif=wif, + # private_key=bytes_to_string(private_key), + # wif_type=wif_type, + # public_key=public_key, + # public_key_type=public_key_type, + # seed=bytes_to_string(seed_b), + # address=address, + # lot=lot, + # sequence=sequence + # ) + return wif + elif identifier == BIP38_NO_EC_MULTIPLIED_PRIVATE_KEY_PREFIX: + d = d[3:] + if flagbyte == b'\xc0': + compressed = False + elif flagbyte == b'\xe0' or flagbyte == b'\x20': + compressed = True + else: + raise EncodingError("Unrecognised password protected key format. Flagbyte incorrect.") + if isinstance(password, str): + password = password.encode('utf-8') + addresshash = d[0:4] + d = d[4:-4] + + key = scrypt_hash(password, addresshash, 64, 16384, 8, 8) + derivedhalf1 = key[0:32] + derivedhalf2 = key[32:64] + encryptedhalf1 = d[0:16] + encryptedhalf2 = d[16:32] + + # aes = pyaes.AESModeOfOperationECB(derivedhalf2) + aes = AES.new(derivedhalf2, AES.MODE_ECB) + decryptedhalf2 = aes.decrypt(encryptedhalf2) + decryptedhalf1 = aes.decrypt(encryptedhalf1) + priv = decryptedhalf1 + decryptedhalf2 + priv = (int.from_bytes(priv, 'big') ^ int.from_bytes(derivedhalf1, 'big')).to_bytes(32, 'big') + # if compressed: + # # FIXME: This works but does probably not follow the BIP38 standards (was before: priv = b'\0' + priv) + # priv += b'\1' + return priv, addresshash, compressed + else: + raise EncodingError("Unknown BIP38 identifier, value must be 0x0142 (non-EC-multiplied) or " + "0x0143 (EC-multiplied)") + + +def bip38_encrypt(private_hex, address, password, flagbyte=b'\xe0'): + """ + BIP0038 non-ec-multiply encryption. Returns BIP0038 encrypted private key + Based on code from https://github.com/nomorecoin/python-bip38-testing + + :param private_hex: Private key in hex format + :type private_hex: str + :param address: Address string + :type address: str + :param password: Required password for encryption + :type password: str + :param flagbyte: Flagbyte prefix for WIF + :type flagbyte: bytes + + :return str: BIP38 password encrypted private key + """ + if isinstance(address, str): + address = address.encode('utf-8') + if isinstance(password, str): + password = password.encode('utf-8') + addresshash = double_sha256(address)[0:4] + key = scrypt_hash(password, addresshash, 64, 16384, 8, 8) + derivedhalf1 = key[0:32] + derivedhalf2 = key[32:64] + aes = AES.new(derivedhalf2, AES.MODE_ECB) + # aes = pyaes.AESModeOfOperationECB(derivedhalf2) + encryptedhalf1 = \ + aes.encrypt((int(private_hex[0:32], 16) ^ int.from_bytes(derivedhalf1[0:16], 'big')).to_bytes(16, 'big')) + encryptedhalf2 = \ + aes.encrypt((int(private_hex[32:64], 16) ^ int.from_bytes(derivedhalf1[16:32], 'big')).to_bytes(16, 'big')) + encrypted_privkey = b'\x01\x42' + flagbyte + addresshash + encryptedhalf1 + encryptedhalf2 + encrypted_privkey += double_sha256(encrypted_privkey)[:4] + return base58encode(encrypted_privkey) + + def bip38_intermediate_password(passphrase, lot=None, sequence=None, owner_salt=os.urandom(8)): """ Intermediate passphrase generator for EC multiplied BIP38 encrypted private keys. diff --git a/index.html b/index.html new file mode 100644 index 00000000..c6c7706a --- /dev/null +++ b/index.html @@ -0,0 +1,5574 @@ + + + + Het Financieele Dagblad + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Economie

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+ + + Hackers leggen brouwerijen Duvel plat  + + + + Wat te doen met €3,2 biljoen? Boeren subsidiëren! + + + + Tegenvaller voor Frans staatsbedrijf: kerncentrales €16 mrd duurder + + + + Ook na het oprekken knelt het Brusselse begrotingskorset nog  + + + + Consumptieve bestedingen in januari iets gestegen  + +
Gisteren
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Bedrijfsleven

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+ + + ASML zet verdeeld Den Haag onder druk + + + + Ambitieuze wereldreiziger maakt bij Philips volgende stap hogerop + + + + Ex-werknemer Rabobank ruziet over torenhoge advocatenkosten  + + + + Hoofdredacteur WNL tijdelijk weg na meldingen over angstcultuur  + + + + Wolters Kluwer-ceo McKinstry verdiende vorig jaar €15 mln + + + + Vechten om schroot, het nieuwe goud in de staalindustrie + + + + Topman ASML haalt uit naar Kamer­leden: te weinig interesse in techsector  + + + + Cat Rock Capital bouwt belang Just Eat Takeaway verder af   + + + + Dagkoers: Je privacy als luxeproduct + + + + Personalia woensdag 6 maart + +
Gisteren
+ + + ‘Franse Naval Group gaat onderzeeërs aan Nederland leveren’ + +
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Politiek

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+ + + Britse regering perst er richting verkiezingen nog een douceurtje uit + + + + Gaskraan Groningen mogelijk eerder echt dicht + + + + ‘Munitieorder Oekraïne door internationale bondgenoten gefinancierd’ + + + + De opties van informateur Kim Putters  + + + + Oeganda verhoogt rente vanwege straf Wereldbank na verbod op homoseksualiteit + + + + Bouw nieuwe kerncentrales in Zeeland nog lang geen gegeven + + + + Europa heeft bescheiden aandeel in de wereldwijde defensie-industrie + + + + Over gratis beker van werkgever is geen belasting verschuldigd + + + + Raad van State vraagt extra stikstofberekening rond A15 + + + + EU gaat e-auto’s uit China registreren als opmaat naar importtarieven  + + + + Haley stopt, Amerikaanse verkiezingen gaan nieuwe fase in + +
Gisteren
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Financiële Markten

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+ + + Overnamefantasie onder verzekeraars + + + + Amerikaanse marketeer verdachte in fraudezaak rond Corina de J.   + + + + CVC kijkt weer naar beursgang in Amsterdam + + + + Beursgang Circle kan cryptowereld salonfähiger maken + + + + Knab’s wrede Oostenrijkse weeshuis + + + + Hunt neemt zijn verlies + + + + Leasemarkt voelt aarzeling bij bedrijven om te investeren + + + + ABP: de zaak tegen Van Baal is een laatste stuiptrekking van Exxon + + + + De messen worden geslepen rondom Chemours  + + + + AEX sluit weer boven 857 punten + +
Gisteren
+ + + Amerikaanse beleggers trappen op de rem  + + + + Lucas Bols verdwijnt uit Amsterdamse smallcapindex + +
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Samenleving

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+ + + Ruim vier jaar cel geëist tegen voetbaltrainer Ancelotti + + + + ‘Ik kan harde adviezen geven’  + + + + Doe eens gevaarlijk, lees je je bubbel uit  + + + + Breakdancer Redo: ‘Ik wil ook op mijn hoofd staan’  + + + + Emile Schrijver: ‘Sinds kort hoef ik niet meer uit te leggen waarom het Holocaustmuseum nodig is’ + +
Gisteren
+ + + Negatief advies over aardgaswinning op de Wadden + +
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Tech & Innovatie

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+ + + Uber en start-up Revel Transit sluiten deal + + + + OpenAI publiceert oude e-mails van Elon Musk in moddergevecht  + + + + Groeivertraging en snijden in expatregeling baren techsector zorgen + +
Gisteren
+ + + Softwarebedrijf Bird vervangt 20% van personeel door AI  + +
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Opinie

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+ + + Uitwijken ASML naar buitenland is nederlaag voor Nederland + + + + Amerika is onze groeimotor, maar hoe lang nog? + + + + Het tijdperk van deepfake + + + + De vreselijke dystopie die Nederland heet + + + + Breek de monopolies + +
Gisteren
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