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%%% plop data structures. Heavily based on RFC 6962. Some are for
%%% database storage, some for interfacing with consumers and some are
%%% for serialisation.
-type signature_type() :: certificate_timestamp | tree_hash | test. % uint8
-type entry_type() :: x509 | precert | test. % uint16
-type leaf_type() :: timestamped_entry | test. % uint8
%% @doc Merkle Tree Leaf -- what's sent as 'leaf_input' in response to
%% get-entries requests and also the input to the hash function for
%% leaf hashes in the tree. RFC 6962 sect 3.4.
-record(mtl, {
version = 1 :: pos_integer(),
leaf_type = timestamped_entry :: leaf_type(),
entry :: timestamped_entry()
}).
-type mtl() :: #mtl{}.
-record(spt, {
version :: pos_integer(), % uint8
logid :: binary(), % SHA-256 over DER encoded public log key
timestamp :: integer(), % uint64
signature :: binary()
}).
-type spt() :: #spt{}.
%% @doc What's signed in an SPT. Used for serialisation before hasning
%% and signing. FIXME: Overlapping #spt{} -- merge somehow.
-record(spt_signed, {
version :: pos_integer(),
signature_type :: signature_type(),
timestamp :: integer(),
entry_type :: entry_type(),
signed_entry :: binary()
}).
-type spt_signed() :: #spt_signed{}.
%% A plop entry with timestamp. Part of the Merkle Tree Leaf
%% structure.
-record(timestamped_entry, {
timestamp = now :: now | integer(),
entry :: plop_entry()
}).
-type timestamped_entry() :: #timestamped_entry{}.
%% An entry, without the timestamp. This is what we hash over and
%% store in the the database for finding duplicated submissions.
-record(plop_entry, {
type :: entry_type(),
data :: binary()
}).
-type plop_entry() :: #plop_entry{}.
-export_type([timestamped_entry/0, mtl/0, entry_type/0]).
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