Zilog EZ80F91AZA - Manual (Page 7)

UM020107-1211 Introduction
ZTP Network Security SSL Plug-In
User Manual
1
Introduction
Zilog’s TCP/IP Network Security SSL Plug-In provides security for TCP connections
established between a client and a server using the Zilog TCP/IP Software Suite (ZTP).
The SSL handshake protocol is used to authenticate the server and arrive at a shared secret
between the client and server that is used to encrypt all application data transferred over
the SSL session. Additionally, each transferred message contains a message authentication
code that can detect if its data has been altered during transition.
Features
This package is only compatible with the ZTP Software Suite of the same version. For exam-
ple, the ZTP Network Security Plug-In package
X.Y.Z is only compatible with ZTP Soft-
ware Suite X.Y.Z ; it is not compatible with ZTP Software Suite X.Y+1.Z or X.Y.Z-1 .
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The ZTP Network Security SSL Plug-In includes support for the following versions of the
SSL handshake protocol:
•
SSL version 2 (SSLv2) client and server support
•
SSL version 3 (SSLv3) client and server support
•
TLS version 1 (TLSv1) client and server support

Each version of the SSL protocol can operate in any of the following modes, independent
of other SSL handshake protocols:
•
Client Only mode
•
Server Only mode
•
Client Server mode

You can run one, two or all three versions of the SSL handshake protocol simultaneously.
The ZTP Network Security SSL Plug-In provides support for the following cryptographic
functions.
•
Supported public key algorithms:
– RSA
– DSS (using the DSA)
– DH
1. Throughout this document, X.Y.Z refers to the ZTP version number in Major.Minor.Revision format