Apache

Zertifikat generieren

Defaultwerte vernünftig anpassen

Country & Co auf für einen selbst passende Werte anpassen:

# vi /etc/ssl/openssl.cnf

Schlüssel generieren

# openssl ecparam -genkey -name secp256r1 | openssl ec -out server.de.ec-key

Zertifikat ausstellen

# openssl req -new -x509 -sha256 -key server.de.ec-key -out server.de-wildcard.pem -days 1825 -node

You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [DE]:
State or Province Name (full name) [Hamburg]:
Locality Name (eg, city) [Hamburg]:
Organization Name (eg, company) [My Site]:
Organizational Unit Name (eg, section) [Sub]:
Common Name (e.g. server FQDN or YOUR name) []:*.server.de
Email Address [ssl@server.de]:

Apache konfigurieren

<VirtualHost ssl.server.de:443>
  ...  
  SSLEngine On
  SSLProtocol all -SSLv2 -SSLv3
  SSLCompression off
  SSLHonorCipherOrder On
  SSLCipherSuite EECDH+AESGCM:EECDH+AES:EDH+AES
  SSLCertificateFile    /etc/apache2/ssl/server.de-wildcard.pem
  SSLCertificateKeyFile /etc/apache2/ssl/server.de.ec-key
  SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire
  ServerSignature On
</VirtualHost>