FTPS - support for client certificate authentication

Current Situation

• YADE can be configured to verify a server certificate.
  • Configuration items:
    • FTPSClientSecurity
      • KeyStoreType - the type of the keyStore, e.g. "JKS"
      • KeyStoreFile - the Key Store to be used
      • KeyStorePassword - the Key Store password
• When a server is configured to force client certificate authentication then
  • the client certificate authentication cannot be configured in YADE.
  • the connection to the server cannot be established.

Desired Behavior

• Support for client certificate authentication with YADE:
  • Use of common or separate Key Stores for server certificates and client certificate private key entries.
  • Introducing the new configuration items for a FTPSClientSecurity element:
    • KeyStoreClientCertificatePrivateKeyAlias - the alias of the key to use
    • KeyStoreClientCertificatePrivateKeyPassword - the password of the key to use
    • ClientKeyStore - use of an extra Key Store with the client certificate private key entries otherwise the KeyStoreFile will be used
      • ClientKeyStoreType - the type of the keyStore, e.g. "JKS"
      • ClientKeyStoreFile - the Key Store to use
      • ClientKeyStorePassword - the Key Store password