摘要 |
To provide an apparatus and a method for encrypted communication processing having a high communication speed in inter-node communication on a network capable of performing effective encrypted communication with improved security without losing the high speed. In the inter-node communication on the network, a plurality of shared encryption keys are first set and are switched arbitrarily for each packet to be transmitted, thus there is no need to repeat the handshaking for changing, whenever needed, the encryption keys to be used. |