48 lines
1.3 KiB
OCaml
48 lines
1.3 KiB
OCaml
(* TODO
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- key rotation
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- how many signkey to use?
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we just use 1 for now *)
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open Syntax
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type t = {
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lock: Miou.Mutex.t;
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sm_key: Signkey.t;
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signkeys: Signkey.t list;
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}
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let dir = Fpath.(v "data" / "secmod_signkey")
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let store_secmod_data t =
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let* () = Data_file.write_eddsa Fpath.(dir / "sm_key") t.sm_key.priv in
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t.signkeys
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|> List.mapi (fun i key ->
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let fname = Fpath.(dir / string_of_int i) in
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(fname, key.Signkey.priv))
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|> list_iter (fun (fname, key) -> Data_file.write_eddsa fname key)
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let load conn =
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let error_invalid_state =
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Fmt.error_msg "secmod_signkey load error: invalid store state."
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in
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let* sm_key = Data_file.load_signkey conn Fpath.(dir / "sm_key") in
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let* signkeys =
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let l = List.init 1 (fun i -> Fpath.(dir / string_of_int i)) in
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let* l =
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Syntax.list_map (fun fname -> Data_file.load_signkey conn fname) l
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in
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match Syntax.opt_list l with
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| Error () -> error_invalid_state
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| Ok opt -> Ok opt
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in
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match (sm_key, signkeys) with
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| None, None -> Ok None
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| Some sm_key, Some signkeys ->
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let lock = Miou.Mutex.create () in
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Ok (Some { lock; sm_key; signkeys })
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| _, _ -> error_invalid_state
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let make_new () =
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let lock = Miou.Mutex.create () in
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let sm_key = Signkey.make () in
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let signkeys = [ Signkey.make () ] in
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{ lock; sm_key; signkeys }
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