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trezor-firmware/src/apps/ripple/base58_ripple.py
2018-07-30 16:37:48 +02:00

34 lines
912 B
Python

from trezor.crypto import base58
# Ripple uses different 58 character alphabet than traditional base58
_ripple_alphabet = "rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz"
def encode(data: bytes) -> str:
"""
Convert bytes to base58 encoded string.
"""
return base58.encode(data, alphabet=_ripple_alphabet)
def decode(string: str) -> bytes:
"""
Convert base58 encoded string to bytes.
"""
return base58.decode(string, alphabet=_ripple_alphabet)
def encode_check(data: bytes, digestfunc=base58.sha256d_32) -> str:
"""
Convert bytes to base58 encoded string, append checksum.
"""
return encode(data + digestfunc(data))
def decode_check(string: str, digestfunc=base58.sha256d_32) -> bytes:
"""
Convert base58 encoded string to bytes and verify checksum.
"""
data = decode(string)
return base58.verify_checksum(data, digestfunc)