FW-767. Implementation of RS role of OSCORE profile of ACE framework. - #434
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malishav wants to merge 16 commits into
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FW-767. Implementation of RS role of OSCORE profile of ACE framework.#434malishav wants to merge 16 commits into
malishav wants to merge 16 commits into
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The implementation of the RS role of the ACE framework. RS exposes "/resource1" that should only be accessed over an OSCORE channel. The security context to establish this channel is communicated to the RS by the Client by a POST to /token resource, with payload containing the access token. The access token, encrypted and authenticated with a key shared between the RS and the AS, contains OSCORE parameters.
When a protected resource is accessed over unprotected transport (i.e. without OSCORE), RS returns 4.01 Unauthorized error with payload containing the AS Info CBOR object. This object encodes the URI of the AS, where access token can be requested.
The file will contain both encoding and decoding functions.
Add special type, not defined in OSCORE, to derive ACE keys. This is a custom way of defining keys shared between the AS and RS, as part of the ACE authorization framework.
CWT is a COSE Encrypt0 object. The implementation of the decoding routing is quite conservative in what it accepts.
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This PR adds support for a 3-party authorization by implementing OSCORE profile of ACE framework.
The role of RS is co-located with a 6TiSCH node, implemented as part of this PR.
The role of AS is co-located with JRC, implemented as part of openwsn-sw repository.
The role of Client is implemented as part of coap repository.