93 lines
3.3 KiB
Python
93 lines
3.3 KiB
Python
from secp256k1 import lib
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import random
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import os
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ROOT_DIR = os.path.abspath(os.path.dirname(__file__))
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BIP0039_DIR = os.path.normpath(os.path.join(ROOT_DIR, 'bip39_word_list'))
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MAX_AMOUNT = 2100000000000000
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SIGHASH_ALL = 0x00000001
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SIGHASH_NONE = 0x00000002
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SIGHASH_SINGLE = 0x00000003
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SIGHASH_ANYONECANPAY = 0x00000080
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ECDSA_SEC256K1_ORDER = 0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141
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MAINNET_ADDRESS_BYTE_PREFIX = b'\x00'
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TESTNET_ADDRESS_BYTE_PREFIX = b'\x6f'
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MAINNET_SCRIPT_ADDRESS_BYTE_PREFIX = b'\x05'
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TESTNET_SCRIPT_ADDRESS_BYTE_PREFIX = b'\xc4'
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MAINNET_SEGWIT_ADDRESS_BYTE_PREFIX = b'\x03\x03\x00\x02\x03'
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TESTNET_SEGWIT_ADDRESS_BYTE_PREFIX = b'\x03\x03\x00\x14\x02'
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MAINNET_ADDRESS_PREFIX = '1'
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TESTNET_ADDRESS_PREFIX = 'm'
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TESTNET_ADDRESS_PREFIX_2 = 'n'
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MAINNET_SCRIPT_ADDRESS_PREFIX = '3'
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TESTNET_SCRIPT_ADDRESS_PREFIX = '2'
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MAINNET_PRIVATE_KEY_UNCOMPRESSED_PREFIX = '5'
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MAINNET_PRIVATE_KEY_COMPRESSED_PREFIX = 'K'
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MAINNET_PRIVATE_KEY_COMPRESSED_PREFIX_2 = 'L'
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TESTNET_PRIVATE_KEY_UNCOMPRESSED_PREFIX = '9'
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TESTNET_PRIVATE_KEY_COMPRESSED_PREFIX = 'c'
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ADDRESS_PREFIX_LIST = (MAINNET_ADDRESS_PREFIX,
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TESTNET_ADDRESS_PREFIX,
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TESTNET_ADDRESS_PREFIX_2,
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MAINNET_SCRIPT_ADDRESS_PREFIX,
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TESTNET_SCRIPT_ADDRESS_PREFIX)
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PRIVATE_KEY_PREFIX_LIST = (MAINNET_PRIVATE_KEY_UNCOMPRESSED_PREFIX,
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MAINNET_PRIVATE_KEY_COMPRESSED_PREFIX,
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MAINNET_PRIVATE_KEY_COMPRESSED_PREFIX_2,
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TESTNET_PRIVATE_KEY_UNCOMPRESSED_PREFIX,
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TESTNET_PRIVATE_KEY_COMPRESSED_PREFIX)
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MAINNET_PRIVATE_KEY_BYTE_PREFIX = b'\x80'
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TESTNET_PRIVATE_KEY_BYTE_PREFIX = b'\xef'
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MAINNET_SEGWIT_ADDRESS_PREFIX = 'bc'
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TESTNET_SEGWIT_ADDRESS_PREFIX = 'tb'
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EC_COMPRESSED = lib.SECP256K1_EC_COMPRESSED
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EC_UNCOMPRESSED = lib.SECP256K1_EC_UNCOMPRESSED
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FLAG_SIGN = lib.SECP256K1_CONTEXT_SIGN
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FLAG_VERIFY = lib.SECP256K1_CONTEXT_VERIFY
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ALL_FLAGS = FLAG_SIGN | FLAG_VERIFY
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NO_FLAGS = lib.SECP256K1_CONTEXT_NONE
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HAS_RECOVERABLE = hasattr(lib, 'secp256k1_ecdsa_sign_recoverable')
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HAS_SCHNORR = hasattr(lib, 'secp256k1_schnorr_sign')
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HAS_ECDH = hasattr(lib, 'secp256k1_ecdh')
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ECDSA_CONTEXT_SIGN = lib.secp256k1_context_create(FLAG_SIGN)
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ECDSA_CONTEXT_VERIFY = lib.secp256k1_context_create(FLAG_VERIFY)
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ECDSA_CONTEXT_ALL = lib.secp256k1_context_create(ALL_FLAGS)
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lib.secp256k1_context_randomize(ECDSA_CONTEXT_SIGN,
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random.SystemRandom().randint(0, ECDSA_SEC256K1_ORDER).to_bytes(32, byteorder="big"))
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SCRIPT_TYPES = {"P2PKH": 0,
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"P2SH": 1,
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"PUBKEY": 2,
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"NULL_DATA": 3,
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"MULTISIG": 4,
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"P2WPKH": 5,
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"P2WSH": 6,
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"NON_STANDARD": 7,
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"NULL_DATA_NON_STANDARD": 8
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}
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# CONSTANTS hierarchical deterministic wallets (HD Wallets)
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MAINNET_XPRIVATE_KEY_PREFIX = b'\x04\x88\xAD\xE4'
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MAINNET_XPUBLIC_KEY_PREFIX = b'\x04\x88\xB2\x1E'
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TESTNET_XPRIVATE_KEY_PREFIX = b'\x04\x35\x83\x94'
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TESTNET_XPUBLIC_KEY_PREFIX = b'\x04\x35\x87\xCF'
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HARDENED_KEY = 0x80000000
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FIRST_HARDENED_CHILD = 0x80000000
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PATH_LEVEL_BIP0044 = [0x8000002C, 0x80000000, 0x80000000, 0, 0]
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TESTNET_PATH_LEVEL_BIP0044 = [0x8000002C, 0x80000001, 0x80000000, 0, 0]
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