Fix passdb response

Sets 'noauthenticate', and prefixes the private key with the userdb_
prefix as it should.
3 jobs from master in 1 minute and 8 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build Src
passed #4801
build:src

00:00:13

 
  Build Pkg
passed #4802
build:pkg

00:00:34

 
  Upload
passed #4803
upload:pkg

00:00:20