Figure 61 – Siemens XT65 User Manual
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Java User’s Guide
12.1 Secure Data Transfer
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Figure 61: Mode 2 - Server Certificate and self signed root Certificate in module form a chain
12.1.1
Create a Secure Data Transfer Environment Step by Step
The following steps describe the configuration:
•
The certificate exists within the module (see
•
Certificate verification is activated for a data connection (HTTPS or SecureConnection).
The steps described below use the cygwin + openssl environment (for installation see
. The openssl documentation can be found here
)
A CA Root certificate is generated. This certificate can be placed on the HTTPS-Server.
Another possibility is to use the private key of the certificate in order to sign thereby a server
certificate. Both certificates form then a chain, which can be examined by the ME. A step-by-
step description for the latter scenario can be found below.