| CPC H04L 63/1433 (2013.01) [H04L 63/1425 (2013.01)] | 14 Claims |

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1. A second node of a network comprising a set of nodes including at least the second node and a first node, the second node comprising:
at least one processor; and
at least one memory comprising computer program code,
the at least one memory and the computer program code configured to, with the at least one processor, cause the second node to perform at least the following:
attest the first node in the network, the first node being adjacent the second node in the network; and
generate an attestation result of the first node and send the attestation result to a third node in the network;
wherein a plurality of second nodes adjacent the first node is configured to generate a plurality of attestation results of the first node and to send the plurality of attestation results to the third node for combination to determine a credibility of the first node.
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