steelcrypt/src/algorithms/spritz/spritz_hash.adb

52 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/>.
package body Spritz_Hash is
procedure Initialize (ctx : out Context) is
begin
Spritz.Initialize(Spritz.Context(ctx.ctx));
end Initialize;
procedure Add_Domain (ctx : in out Context; Domain : in String) is
begin
Spritz.Absorb(Spritz.Context(ctx.ctx), Domain);
Spritz.AbsorbStop(Spritz.Context(ctx.ctx));
end Add_Domain;
procedure Add_Domain (ctx : in out Context; Domain : in u8_Array) is
begin
Spritz.Absorb(Spritz.Context(ctx.ctx), Domain);
Spritz.AbsorbStop(Spritz.Context(ctx.ctx));
end Add_Domain;
procedure Add_Data (ctx : in out Context; data : in u8_Array) is
begin
Spritz.Absorb(Spritz.Context(ctx.ctx), data);
end Add_Data;
procedure Add_Data (ctx : in out Context; data : in String) is
begin
Spritz.Absorb(Spritz.Context(ctx.ctx), data);
end Add_Data;
procedure Extract_Hash (ctx : in out Context; Hash : out u8_Array) is
begin
Spritz.AbsorbStop(Spritz.Context(ctx.ctx));
Spritz.Absorb(Spritz.Context(ctx.ctx), Natural(Hash'Length));
Spritz.Squeeze(Spritz.Context(ctx.ctx), Hash);
end Extract_Hash;
end Spritz_Hash;