--
-- This file is part of TALER
-- Copyright (C) 2014--2022 Taler Systems SA
--
-- TALER is free software; you can redistribute it and/or modify it under the
-- terms of the GNU General Public License as published by the Free Software
-- Foundation; either version 3, or (at your option) any later version.
--
-- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-- A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License along with
-- TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
--

CREATE TABLE exchange_sign_keys
  (esk_serial BIGINT GENERATED BY DEFAULT AS IDENTITY UNIQUE
  ,exchange_pub BYTEA PRIMARY KEY CHECK (LENGTH(exchange_pub)=32)
  ,master_sig BYTEA NOT NULL CHECK (LENGTH(master_sig)=64)
  ,valid_from INT8 NOT NULL
  ,expire_sign INT8 NOT NULL
  ,expire_legal INT8 NOT NULL
  );
COMMENT ON TABLE exchange_sign_keys
  IS 'Table with master public key signatures on exchange online signing keys.';
COMMENT ON COLUMN exchange_sign_keys.exchange_pub
  IS 'Public online signing key of the exchange.';
COMMENT ON COLUMN exchange_sign_keys.master_sig
  IS 'Signature affirming the validity of the signing key of purpose TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY.';
COMMENT ON COLUMN exchange_sign_keys.valid_from
  IS 'Time when this online signing key will first be used to sign messages.';
COMMENT ON COLUMN exchange_sign_keys.expire_sign
  IS 'Time when this online signing key will no longer be used to sign.';
COMMENT ON COLUMN exchange_sign_keys.expire_legal
  IS 'Time when this online signing key legally expires.';