[jira] [Created] (KNOX-929) Identity Broker API

["Larry McCay (JIRA)" <ji...@apache.org>]

Larry McCay created KNOX-929:
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             Summary: Identity Broker API
                 Key: KNOX-929
                 URL: https://issues.apache.org/jira/browse/KNOX-929
             Project: Apache Knox
          Issue Type: Bug
          Components: Server
            Reporter: Larry McCay
             Fix For: 0.13.0


Ability to request a token on behalf of another user w/ cryptographically verifiable trust relationship. This is essentially an extension of the KnoxToken service where the username of the authenticated user is presented and the resulting token should represent
Ability to specify what type of token is being requested. There are use cases where Knox may be expected to interact with another STS service in order to acquire another token. This may need to be addressed as a separate REST resource and API or perhaps it can be a subtype of a more generic token response. Current KnoxToken API response looks something like:

{
"access_token":"eyJhbGciOiJSUzI1NiJ9.
                 eyJzdWIiOiJndWVzdCIsImF1ZCI6InRva2VuYmFzZWQiLCJpc3MiOiJLTk9YU1NPIiwiZXhwIjoxNDkzNTM4MjY1fQ.
                 FHsIdhlCi_h61PEXoKSbIEp5AlnVe9U5uEgcp7ktmVS8kLClFD2dj0KS-8sSnvNiPYdyZhEvxqNhjmhqXMd2YQz97O6FUSGf69_
                 lmarJPjz9K_6sDgrgpZnVQhUfHUG3k6-zetqzKZhu3gZYVLfu36TXb3C62TfXIrPF2qI9psM",
  "target_url":"https://localhost:8443/gateway/tokenbased",
  "token_type":"Bearer ",
  "expires_in":1493538265484
}

It is possible that the above could be used to represent multiple token types by adding additional token_type values for the client to interrogate and handle appropriately.
Of course, a client should request a token from a KnoxToken service that is configured to provide the desired token.
Perhaps, we limit an endpoint to a single token_type or we could configure a single service endpoint to service requests for certain types and rely on the client to ask for the desired one and default to current 'Bearer' type.
Where 'Bearer' implies our Knox JWT token.
Other potential types would include things like S3 or AWS tokens.
We may also want to consider base64 encoding the token for certain types.
Clients would have to know whether it needs to be decoded based on the type.




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