| 摘要 |
<p>A transmitting apparatus comprises an initialization vector generating unit for generating an initialization vector, an encryption unit for initializing a stream encryption module using the generated initialization vector and performing stream encryption on stream data using the initialized stream encryption module, an encryption packet generating unit for generating an encryption packet containing encrypted stream-encrypted data, an initialization packet generating unit for generating an initialization packet containing an initialization vector and time information indicating when a next initialization vector subsequent to the initialization vector will be sent, and a transmission unit for transmitting the initialization packet and the encryption packet by broadcast/multicast.</p> |
