46 lines
1.6 KiB
Ada
46 lines
1.6 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 SHA2_512_Spec is
|
|
|
|
IV : constant u64_Array(1 .. 8) :=
|
|
(
|
|
16#6a09e667f3bcc908#, 16#bb67ae8584caa73b#, 16#3c6ef372fe94f82b#, 16#a54ff53a5f1d36f1#,
|
|
16#510e527fade682d1#, 16#9b05688c2b3e6c1f#, 16#1f83d9abfb41bd6b#, 16#5be0cd19137e2179#
|
|
);
|
|
|
|
procedure Initialize(Context : out Context_T) is
|
|
begin
|
|
Context.H := IV;
|
|
Context.Counter := 0;
|
|
end;
|
|
|
|
procedure Next_Block(Context : in out Context_T; Block : in Block_1024_Bit) is
|
|
begin
|
|
Sha2_Large.Next_Block(Sha2_Large.Context_T(Context), Block);
|
|
end;
|
|
|
|
procedure Last_Block(Context : in out Context_T; Block : in u8_Array; Bits : in Integer := -1) is
|
|
begin
|
|
Sha2_Large.Last_Block(Sha2_Large.Context_T(Context), Block, Bits);
|
|
end;
|
|
|
|
procedure Get_Digest(Context : in out Context_T; Digest : out Block_512_Bit) is
|
|
begin
|
|
Store_BE(Digest, Context.H);
|
|
end;
|
|
|
|
end SHA2_512_Spec;
|