eip_712

Documentation for eth_defi.eip_712 Python module.

EIP-712 signing.

Copyright (C) 2022 Judd Vinet <jvinet@zeroflux.org>
                   Uxío Fuentefría <uxio@safe.global>

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
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SOFTWARE.

Functions

eip712_encode(typed_data)

Given a dict of structured data and types, return a 3-element list of the encoded, signable data.

eip712_encode_hash(typed_data)

param typed_data

EIP712 structured data and types

eip712_signature(payload, private_key)

Given a bytes object and a private key, return a signature suitable for EIP712 and EIP191 messages.

encode_data(primary_type, data, types)

Encode structured data as per Ethereum's signTypeData_v4.

encode_type(primary_type, types)

fast_keccak(value)

find_type_dependencies(primary_type, types)

hash_struct(primary_type, data, types)

hash_type(primary_type, types)