METHOD FOR AGGREGATING INFORMATION VALUES IN A NETWORK

摘要

A method for aggregating information values in a network, the network comprising trusted network nodes and untrusted network nodes, wherein a communication session is established by directing messages through the network along a network path from an originating network node (1) to a destination network node (3) thereby transiting hop-wise several intermediate network nodes (5, 7, 8, 9), wherein said information values are appended to said messages as per-hop information by network nodes (5, 7, 8, 9) along said network path, said appended information values being aggregated from hop to hop, is characterized in that said information values are encrypted before being appended to said messages, wherein said aggregation is performed on the encrypted information values.