74 lines
2.1 KiB
Python
Executable File
74 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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*******************************************************************************
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* Ledger Ethereum App
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* (c) 2016-2019 Ledger
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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********************************************************************************
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"""
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from rlp.sedes import big_endian_int, binary, Binary
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from rlp import Serializable
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try:
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from Crypto.Hash import keccak
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def sha3_256(x): return keccak.new(digest_bits=256, data=x).digest()
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except:
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import sha3 as _sha3
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def sha3_256(x): return _sha3.sha3_256(x).digest()
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address = Binary.fixed_length(20, allow_empty=True)
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def sha3(seed):
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return sha3_256(str(seed))
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class Transaction(Serializable):
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fields = [
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('nonce', big_endian_int),
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('gasprice', big_endian_int),
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('startgas', big_endian_int),
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('to', address),
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('value', big_endian_int),
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('data', binary),
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('v', big_endian_int),
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('r', big_endian_int),
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('s', big_endian_int),
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]
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def __init__(self, nonce, gasprice, startgas, to, value, data, v=0, r=0, s=0):
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super(Transaction, self).__init__(
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nonce, gasprice, startgas, to, value, data, v, r, s)
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class UnsignedTransaction(Serializable):
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fields = [
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('nonce', big_endian_int),
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('gasprice', big_endian_int),
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('startgas', big_endian_int),
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('to', address),
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('value', big_endian_int),
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('data', binary),
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]
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def unsigned_tx_from_tx(tx):
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return UnsignedTransaction(
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nonce=tx.nonce,
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gasprice=tx.gasprice,
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startgas=tx.startgas,
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to=tx.to,
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value=tx.value,
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data=tx.data,
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) |