------------------------------------------------------------------------------
-- Copyright (c) 2014, Natacha Porté --
-- --
-- Permission to use, copy, modify, and distribute this software for any --
-- purpose with or without fee is hereby granted, provided that the above --
-- copyright notice and this permission notice appear in all copies. --
-- --
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES --
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF --
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR --
-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES --
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN --
-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF --
-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. --
------------------------------------------------------------------------------
with Natools.S_Expressions.Encodings;
package body Natools.GNAT_HMAC is
----------------------------
-- Generic Implementation --
----------------------------
function Generic_Digest (C : Context)
return Ada.Streams.Stream_Element_Array is
begin
return S_Expressions.Encodings.Decode_Hex
(S_Expressions.To_Atom (Hex_Digest (C)));
end Generic_Digest;
---------------------------
-- Specialized Instances --
---------------------------
function MD5_Digest is new Generic_Digest
(GNAT.MD5.Context, GNAT.MD5.Digest);
function Digest (C : GNAT.MD5.Context)
return Ada.Streams.Stream_Element_Array
renames MD5_Digest;
function SHA1_Digest is new Generic_Digest
(GNAT.SHA1.Context, GNAT.SHA1.Digest);
function Digest (C : GNAT.SHA1.Context)
return Ada.Streams.Stream_Element_Array
renames SHA1_Digest;
function SHA256_Digest is new Generic_Digest
(GNAT.SHA256.Context, GNAT.SHA256.Digest);
function Digest (C : GNAT.SHA256.Context)
return Ada.Streams.Stream_Element_Array
renames SHA256_Digest;
end Natools.GNAT_HMAC;