public HandshakeSecrets updateIngress(final byte[] bytes) {
    ingressMac.update(bytes, 0, bytes.length);
    return this;
  }
Updates the ingress mac with the provided bytes.

@param bytes The bytes of the incoming message.
@return Returns this instance for fluent chaining.
ethereum/p2p/src/main/java/org/hyperledger/besu/ethereum/p2p/rlpx/handshake/HandshakeSecrets.java