Module: Rex::Proto::Kademlia::Util

Defined in:
lib/rex/proto/kademlia/util.rb

Class Method Summary collapse

Class Method Details

.decode_peer_id(bytes) ⇒ String

Decodes an on-the-wire representation of a Kademlia peer to its 16-character hex equivalent

Parameters:

  • bytes (String)

    the on-the-wire representation of a Kademlia peer

Returns:

  • (String)

    the peer ID if valid, nil otherwise


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# File 'lib/rex/proto/kademlia/util.rb', line 10

def self.decode_peer_id(bytes)
  peer_id = 0
  return nil unless bytes.size == 16
  bytes.unpack('VVVV').map { |p| peer_id = ((peer_id << 32) ^ p) }
  peer_id.to_s(16).upcase
end