gateway: support local root key#109
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Rename class fields to more accurately match the standard Infuse-IoT nomenclature. Signed-off-by: Jordan Yates <jordan@embeint.com>
Extract the common internals from key derivation functions to internal helpers. Signed-off-by: Jordan Yates <jordan@embeint.com>
Enable providing a local root key to the gateway script, which is then passed to the underlying device database for key management. Signed-off-by: Jordan Yates <jordan@embeint.com>
For `VLACompatLittleEndianStruct` subclasses, `vla_counted_by` always exists, but can be `None`. Ensure it is not `None` before attempting to use. Signed-off-by: Jordan Yates <jordan@embeint.com>
Update RPC definitions. Signed-off-by: Jordan Yates <jordan@embeint.com>
Add wrapper for the `security_public_keys` RPC. Signed-off-by: Jordan Yates <jordan@embeint.com>
Add a wrapper for writing a secondary device root key. Signed-off-by: Jordan Yates <jordan@embeint.com>
If a local root identity is provided, query remote devices for secondary public keys and compute shared secrets if the keys match. Signed-off-by: Jordan Yates <jordan@embeint.com>
Add the option to provide the device key ID used for the packet to the key retrieval service. Use this for decrypting data from devices. Signed-off-by: Jordan Yates <jordan@embeint.com>
If we know the shared key from the secondary (local) root key, use that instead of the cloud derived key. Signed-off-by: Jordan Yates <jordan@embeint.com>
Return the key identifier associated with the returned key, as the caller no longer knows the value. Signed-off-by: Jordan Yates <jordan@embeint.com>
Handle observing the secondary device key without raising an exception. Signed-off-by: Jordan Yates <jordan@embeint.com>
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Add support for using a local root device key with the
--rootargument.Depends on the embedded device enabling
CONFIG_INFUSE_SECURITY_SECONDARY_REMOTE_ENABLEand the secondary root being present (can be written withinfuse rpc security_key_update --secondary-root root.pem)