Difference between authKey/authCode and normal headers

[SebastianOpriel]

Could you explain how authkey/authcode (example: AAA, BBB) are handled separately from usual headers (example: CCC:DDD, EEE:FFF)? I would expect, that I could pass an Authroization header also als normal header.

{
    "asset": {
        "properties": {
            "asset:prop:id": "urn:artifact:test1",
            "asset:prop:name": "test",
            "...":"..."
        }
    },
    "dataAddress": {
        "properties": {
            "type": "HttpData",
            "baseUrl": "https://URL.com",
            "method": "GET",
            "authKey": "AAA",
            "authCode": "BBB",
            "header:CCC": "DDD",
            "header:EEE": "FFF"
        }
    }
}