mirror of
https://github.com/LBRYFoundation/lbry-sdk.git
synced 2025-08-23 09:17:23 +00:00
fef0cc764d
Removed the comment API Removed tests for the comment API Removed the documentation section Removed the comment server configuration
41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
import logging
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import time
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import hashlib
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import binascii
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import ecdsa
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from lbry.crypto.hash import sha256
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from lbry.wallet.transaction import Output
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log = logging.getLogger(__name__)
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def get_encoded_signature(signature):
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signature = signature.encode() if isinstance(signature, str) else signature
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r = int(signature[:int(len(signature) / 2)], 16)
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s = int(signature[int(len(signature) / 2):], 16)
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return ecdsa.util.sigencode_der(r, s, len(signature) * 4)
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def verify(channel, data, signature, channel_hash=None):
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pieces = [
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signature['signing_ts'].encode(),
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channel_hash or channel.claim_hash,
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data
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]
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return Output.is_signature_valid(
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get_encoded_signature(signature['signature']),
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sha256(b''.join(pieces)),
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channel.claim.channel.public_key_bytes
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)
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def sign(channel, data):
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timestamp = str(int(time.time()))
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pieces = [timestamp.encode(), channel.claim_hash, data]
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digest = sha256(b''.join(pieces))
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signature = channel.private_key.sign_digest_deterministic(digest, hashfunc=hashlib.sha256)
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return {
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'signature': binascii.hexlify(signature).decode(),
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'signing_ts': timestamp
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}
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