Transmission apparatus, reception apparatus, communication system, transmission method, and reception method

摘要

Provided is a transmission apparatus capable of avoiding unnecessary decryption and preventing a denial-of-service attack. The transmission apparatus that establishes a secure communications channel (SA) between the transmission apparatus and a reception apparatus includes a creation section that creates a packet, an encryption section that, based on a ratio of a redundant packet to the packets created by the packet creation section and on an instruction from the reception apparatus, determines an encryption coverage in the created packet and encrypts data in the encryption coverage, and a transmission section that transmits the encrypted packet through SA.

主权项

1. A transmission apparatus configured to establish a secure communications channel between the transmission apparatus and a reception apparatus, comprising;
a packet creation section configured to create a packet; an encryption section configured to, based on a ratio of redundant packets to the packets created by the packet creation section or on an instruction from the reception apparatus, determine an encryption coverage in the packet created by the packet creation section and encrypt data in the encryption coverage; and a transmission section configured to transmit the packet encrypted by the encryption section through the secure communications channel.