SOA Gateway wsse security username token

When you want to use a service generated with the EBS 12.1 SOA Gateway you'll need a wsse:security block in the soap header to authenticated against the Username token. That is when you choose to use Username-token as authentication method.
The block that you need to add to the soap header looks like:

<wsse:Security>
  <wsse:UsernameToken> 
    <wsse:Username>ASADMIN</wsse:Username>
    <wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">AsAdminPassword</wsse:Password>
  </wsse:UsernameToken> 
</wsse:Security>

The namespace that the abbreviation wsse: points to is:

xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"