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diff --git a/docs/sections/configuration/trust.rst b/docs/sections/configuration/trust.rst new file mode 100644 index 00000000..215e4e73 --- /dev/null +++ b/docs/sections/configuration/trust.rst @@ -0,0 +1,59 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 +.. Copyright © 2017 AT&T Intellectual Property. All rights reserved. + +Trusting Other Authentication Entities +========================================== + +Few Transactions in an Organization of any size touch only one service. This is even more true with MicroService Architecture. + +In AAF, EVERY Tranasction must be Authenticated from the Caller, but in App-to-App situations, not every Authorization should be +evaluated on the underlying caller. + +SERVICE Configuration +---------------------- + 1) Define the Permission this App will use for Trust, and add to Service's "Cadi Properties" + Ex: + + cadi_trust_perm=org.onap.aai.user_chain|com.att|trust + + 2) In the AAF Service, user the AAF CMDline interface to create Permission that matches above, and role + + Given that an App may trust "ONAP Portal" to have validated an end-user, and that ONAP Portal's Identity is portal@portal.onap.org, + + role create org.onap.aai.trusted portal@portal.onap.org + perm create org.onap.aai.user_chain|org.onap|trust org.onap.aai.trusted + + Note: These instructions are for first Identity, which both creates Role and Perm, and adds User, Grants Perm. Admin may separate the commands of "create" and "grant"/"add", see CUI help. + +CLIENT Transaction +------------------- + The CADI client, when used, will create USER_CHAIN property automatically, but not all CLIENTs are CADI. For NON-CADI HTTP Clients, do the following: + + * Create an HTTP Header property called “USER_CHAIN” + * The syntax for the value is: + + <AAF ID>:<service Reference>:<Authentication Type>[:AS][,<ID>:<reference>:<type>]* + + Where “:AS” is the indicator that you want the Service to treat the transaction as if it came from the end client. + <AAF_ID> is the Identity of the Calling Client (End Client) + <service Reference> should be the Service's AAF Namespace and microservice name, separated by '.' + <Authentication Type> should be how the Client was Authenticated + + BAth - BasicAuth + x509 - X509 Client Certificate + + <other Organization defined Types are acceptable, but should be 4 chars long for ease of use, and match any TAF Adapters used to validate> + + Example: + USER_CHAIN: demo@people.osaaf.org:org.onap.aai:BAth:AS + + What Happens: + Cadi Code (such as what is in CadiFilter) + * Reads the USER_CHAIN + * IF the last USER_CHAIN Entry ends with ":AS"... + * Checks to see if the Identity is the same as Service (nice for Model-View-Controller and multi-MS applications) OR + * if the incoming caller has the Permission specified in "cadi_trust_perm" + + * THEN a new "TrustPrincipal" is created, which takes on the identity of the ":AS" identified Identity for the purposes of Authentication. + |