SENA PS210W User Manual
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4.2.5. Cryptography configuration
The Pro Series supports encrypted sessions for only the TCP mode including modem emulation mode
(not UDP mode).
Figure 4-10 Cryptography configuration
4.2.5.1. Secure Sockets Layer(SSL) cryptography method
By setting the cryptography method as SSL, the Pro Series can communicate with another device
supporting SSLv3 cryptography method during encrypted sessions.
SSL was developed by Netscape for use between clients and servers. SSL layers on top of any
transport protocol and can run under application protocols such as HTTP. SSL aims to be secure, fast,
and adaptable to other Web protocols. SSL provides data security for applications that communicate
across networks. SSL is a transport-layer security protocol layered between application protocols and
TCP/IP.
To initiate SSL sessions, exchange of messages called the SSL handshake is required between two
devices (Server and Client). The SSL protocol uses a combination of public-key and symmetric key
encryption. Symmetric key encryption is much faster than public-key encryption, but public-key