Apache2+SSL+SVN

# apt-get install apache2 openssl ssl-cert
# mkdir /etc/apache2/ssl
# make-ssl-cert /usr/share/ssl-cert/ssleay.cnf /etc/apache2/ssl/apache2.pem
# chmod 600 /etc/apache2/ssl/apache.pem
# cd /etc/apache2/sites-available/
# cp default ssl
# a2ensite ssl
# a2enmod ssl
# vim /etc/apache2/ports.conf
   ..
   Listen 443
   ..
# vim /etc/apache2/sites-available/svn
   ..
   NameVirtualHost *:443
   VirtualHost *:443
      SSLEngine On
      SSLCertificateFile /etc/apache2/ssl/apache.pem
      ..
   VirtualHost

# /etc/init.d/apache2 restart

At this point you have an Apache server with SSL. Follow the next commands in order to integrate svn with Apache+SLL

# cd /
# mkdir /svnroot
# chown www-data /svnroot/
# su www-data -c "svnadmin create /svnroot/repository"
# su www-data -c "htpasswd -c -m /svnroot/.dav_svn.passwd testuser"
  ..
  ..
# vim /etc/apache2/sites-available/svn
  ..   
  Location /svn
       DAV svn
       SVNParentPath /svnroot/
       AuthType Basic
       AuthName "LibreForge Subversion Repository"
       AuthUserFile /svnroot/.dav_svn.passwd
       Require valid-user
  Location
  ..
# /etc/init.d/apache2 restart

Now you can use your repository with the testuser created recently:

$ svn co https://your.domain.tld/svn/repository
$ cd repository
$ touch testfile
$ svn add testfile
$ svn ci -m "restfile added"

Or see your repository through https, https://your.domain.tld/svn/repository