steelcrypt/src/abstraction/block_cipher_generic.ads

50 lines
1.8 KiB
Ada

-- Copyright (C) 2015 Daniel Otte <bg@nerilex.org>
--
-- This program 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 of the License, or
-- (at your option) any later version.
--
-- This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
with Crypto_Core_Types; use Crypto_Core_Types;
generic
Name_Intern : String;
type Context_T_Intern is private;
Block_Size_Bits_Intern : Natural;
Key_Size_Bits_Intern : Natural;
with procedure Initialize_Intern(Context : out Context_T_Intern; Key : in u8_Array);
with procedure Encrypt_Intern(Context : in Context_T_Intern; Block : in out u8_Array);
with procedure Decrypt_Intern(Context : in Context_T_Intern; Block : in out u8_Array);
package Block_Cipher_Generic is
Name : String renames Name_Intern;
subtype Context_T is Context_T_Intern;
Block_Size_Bits : Natural renames Block_Size_Bits_Intern;
Key_Size_Bits : Natural renames Key_Size_Bits_Intern;
Block_Size_Bytes : Natural := (Block_Size_Bits) / 8;
Key_Size_Bytes : Natural := (Key_Size_Bits) / 8;
procedure Initialize(Context : out Context_T_Intern; Key : in u8_Array) renames Initialize_Intern;
procedure Encrypt(Context : in Context_T_Intern; Block : in out u8_Array) renames Encrypt_Intern;
procedure Decrypt(Context : in Context_T_Intern; Block : in out u8_Array) renames Decrypt_Intern;
private
end Block_Cipher_Generic;