AFAIK, it's possible to encrypt your entire message using Axis2 and Rampart. However, when I specify UsernameToken and Encrypt actions, it only encrypts the body. I'd like for the entire message to be encrypted, including the user/pass header section.
The encryption will just be for the SOAP body, not the header where the username info is. If you want to transmit the password securely you can send it hashed (a.k.a. digested). That's actually the default if I remember correctly; check the passwordType tag.
But sending the username in cleartext shouldn't be a security risk, or is it?