def DecodeAddr(addr: str, **kwargs: Any) -> bytes:
"""
Decode an Ethereum address to bytes.
Args:
addr (str): Address string
Other Parameters:
skip_chksum_enc (bool, optional): True to skip checksum encoding verification, false otherwise (default)
Returns:
bytes: Public key hash bytes
Raises:
ValueError: If the address encoding is not valid
"""
skip_chksum_enc = kwargs.get("skip_chksum_enc", False)
# Validate and remove prefix
addr_no_prefix = AddrDecUtils.ValidateAndRemovePrefix(
addr, CoinsConf.Ethereum.Params("addr_prefix"))
# Validate length
AddrDecUtils.ValidateLength(addr_no_prefix, EthAddrConst.ADDR_LEN)
# Check checksum encoding
if not skip_chksum_enc and addr_no_prefix != _EthAddrUtils.ChecksumEncode(
addr_no_prefix):
raise ValueError("Invalid checksum encode")
return BytesUtils.FromHexString(addr_no_prefix)
class P2TRConst:
"""Class container for P2TR constants."""
# Secp256k1 field size
FIELD_SIZE: int = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F
# SHA256 of "TapTweak"
TAP_TWEAK_SHA256: bytes = BytesUtils.FromHexString(
"e80fe1639c9ca050e3af1b39c143c63e429cbceb15d940fbb5c5a1f4af57c5e9"
)
# Witness version is fixed to one for P2TR
WITNESS_VER: int = 1
def EncodeKey(pub_key: Union[bytes, IPublicKey], **kwargs: Any) -> str:
"""
Encode a public key to Harmony One address.
Args:
pub_key (bytes or IPublicKey): Public key bytes or object
**kwargs: Not used
Returns:
str: Address string
Raises:
ValueError: If the public key is not valid
TypeError: If the public key is not secp256k1
"""
# Get address in Ethereum format (remove "0x" at the beginning)
eth_addr = EthAddrEncoder.EncodeKey(pub_key)[2:]
# Encode in Bech32 format
return Bech32Encoder.Encode(CoinsConf.HarmonyOne.Params("addr_hrp"),
BytesUtils.FromHexString(eth_addr))
def EncodeKey(pub_key: Union[bytes, IPublicKey], **kwargs: Any) -> str:
"""
Encode a public key to Tron address.
Args:
pub_key (bytes or IPublicKey): Public key bytes or object
**kwargs : Not used
Returns:
str: Address string
Raised:
ValueError: If the public key is not valid
TypeError: If the public key is not secp256k1
"""
# Get address in Ethereum format (remove "0x" at the beginning)
eth_addr = EthAddrEncoder.EncodeKey(pub_key)[2:]
# Add prefix and encode
return Base58Encoder.CheckEncode(
CoinsConf.Tron.Params("addr_prefix") +
BytesUtils.FromHexString(eth_addr))
def DecodeAddr(addr: str,
**kwargs: Any) -> bytes:
"""
Decode a Near Protocol address to bytes.
Args:
addr (str): Address string
**kwargs : Not used
Returns:
bytes: Public key bytes
Raises:
ValueError: If the address encoding is not valid
"""
pub_key_bytes = BytesUtils.FromHexString(addr)
# Validate length
AddrDecUtils.ValidateLength(pub_key_bytes,
Ed25519PublicKey.CompressedLength() - 1)
# Validate public key
AddrDecUtils.ValidatePubKey(pub_key_bytes, Ed25519PublicKey)
return pub_key_bytes