52 lines
1.6 KiB
Python
52 lines
1.6 KiB
Python
"""
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Copyright (C) <2020> Kevin Froman
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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from time import time
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from kasten.generator.pack import pack
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from ..generators import anonvdf
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from ..block import Block
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from ..block import kasten_to_block
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def create_anonvdf_block(
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block_data: bytes,
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block_type: bytes,
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ttl: int,
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**block_metadata) -> Block:
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try:
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block_data = block_data.encode('utf-8')
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except AttributeError:
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pass
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try:
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block_type = block_type.encode('utf-8')
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except AttributeError:
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pass
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ts = int(time())
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packed = pack(
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block_data, block_type,
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app_metadata=block_metadata, timestamp=ts)
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block_metadata['ttl'] = ttl
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rounds_needed = anonvdf.AnonVDFGenerator.get_rounds_for_ttl_seconds(
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ttl, len(packed))
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packed = pack(
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block_data,
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block_type, app_metadata=block_metadata, timestamp=ts)
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k = anonvdf.AnonVDFGenerator.generate(
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packed, block_metadata['ttl'])
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return kasten_to_block(k) |