Siemens XT65 - Manual (Page 100)

Java User’s Guide
12.1 Secure Data Transfer
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wm_java_usersguide_v12 Page 100 of 123 2008-02-25
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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 Section 12.2.1 , Step 1).
• Certificate verification is activated for a data connection (HTTPS or SecureConnection).
The steps described below use the cygwin + openssl environment (for installation see http://
www.cygwin.com/ . The openssl documentation can be found here http://www.openssl.org/
docs/apps/openssl.html )
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.