Digest Authentication with a Cisco device

I'm trying to do what might be an odd configuration. I'm attempting to digest auth users without caring about their "User-name" attribute. So in other words I want to auth on the "Digest-User-Name = "testuser"" that comes in as part of the Digest-Attributes and a password. So in the users file I have "DEFAULT Cleartext-password := "password"" I created a partial digest file but it appears to be ignored on every test: Digest-User-Name = "testuser" Digest-Algorithm = "MD5" Digest-QOP = "auth" In the debug I see: [digest] A1 = testuser:sp.eng:passwod I can change to username to anything I want and as long as the password is correct the user will auth. Am I attempting something impossible or doing it incorrectly?