Add integrity check metrics: MD5 checksum and packet length #59
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The metrics payload adds two more fields: MD5 checksum and packet length.
Those fields can be used by the receiver to validate that the payload was not altered and that the length of the payload is correct.
The updated format of a generated packet:
Note
Packet length might be redundant given the checksum is there. But it might be also useful when only a couple of bytes in a packet are corrupted.