| 摘要 |
<p>Provided is a network system capable of safely delivering key information even to a client with a low throughput and a small memory capacity, such as a portable terminal. The network system passes request information that it desires to acquire the key information to a standard-mounted encryption processing section for performing the encryption of transmission information and the decryption of reception information according to an encryption communication protocol which is standard-mounted. The network system receives the encrypted request information from the standard-mounted encryption processing section, and transmits the request information to a server. Upon reception of response information including the key information from the server, the network system passes the response information to the standard-mounted encryption processing section, receives decrypted response information therefrom, and saves the key information included in the response information.</p> |
