# text.div
This code system http://hl7.org/fhir/restful-security-service defines the following codes:

Code | Definition
OAuth | OAuth (unspecified version see oauth.net).
SMART-on-FHIR | OAuth2 using SMART-on-FHIR profile (see http://docs.smarthealthit.org/).
NTLM | Microsoft NTLM Authentication.
Basic | Basic authentication defined in HTTP specification.
Kerberos | see http://www.ietf.org/rfc/rfc4120.txt.
Certificates | SSL where client must have a certificate registered with the server.

# description
Types of security services used with FHIR.

# concept[].definition
OAuth (unspecified version see oauth.net).

# concept[].definition
Basic authentication defined in HTTP specification.

# concept[].definition
SSL where client must have a certificate registered with the server.