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Refactor message signing and verifying logic
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@ -19,16 +19,20 @@ def message_checksum(message):
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def sign_message(key, message):
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signature = HMAC(key, message_bytes(message)).signature
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signature = message_signature(key, message)
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message['signature'] = b64encode(signature).decode()
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def message_signature(key, message):
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return HMAC(key, message_bytes(message)).signature
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def verify_message(key, message):
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message = deepcopy(message)
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try:
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signature_b64 = message.pop('signature')
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signature = b64decode(signature_b64)
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actual_signature = HMAC(key, message_bytes(message)).signature
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actual_signature = message_signature(key, message)
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return signature == actual_signature
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except KeyError:
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return False
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