220 lines
6.7 KiB
Ada
220 lines
6.7 KiB
Ada
-- Copyright (C) 2015 Daniel Otte <bg@nerilex.org>
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--
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-- This program is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation, either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program. If not, see <http://www.gnu.org/licenses/>.
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with Ada.Integer_Text_IO; use Ada.Integer_Text_IO;
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--
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-- # CAVS 11.0
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-- # "SHA-256 ShortMsg" information
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-- # SHA-256 tests are configured for BIT oriented implementations
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-- # Generated on Tue Mar 15 08:29:11 2011
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--
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-- [L = 32]
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--
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-- Len = 0
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-- Msg = 00
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-- MD = e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
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--
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-- Len = 1
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-- Msg = 00
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-- MD = bd4f9e98beb68c6ead3243b1b4c7fed75fa4feaab1f84795cbd8a98676a2a375
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--
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-- Len = 2
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-- Msg = 80
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-- MD = 18f331f626210ff9bad6995d8cff6e891adba50eb2fdbddcaa921221cdc333ae
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--
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-- Len = 3
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-- Msg = 60
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-- MD = 1f7794d4b0b67d3a6edcd17aba2144a95828032f7943ed26bf0c7c7628945f48
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--
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package body Sha_Test_IO is
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procedure Open(Context : out Context_T; FileName : in String) is
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begin
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Open(Context.File, In_File, FileName);
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end Open;
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procedure Goto_Data(F : in out File_Type) is
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C : Character;
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After_Equal : boolean := false;
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Ignored : boolean;
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begin
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loop
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exit when End_Of_File(F);
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if After_Equal then
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Look_Ahead(F, C, ignored);
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case C is
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when '0' .. '9' => exit;
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when 'A' .. 'F' => exit;
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when 'a' .. 'f' => exit;
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when others => null;
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end case;
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end if;
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Get(F, C);
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if C = '=' then
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After_Equal := true;
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end if;
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end loop;
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end Goto_Data;
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procedure Get_Next_Type(Context : in out Context_T; Next : out Next_Type) is
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C : Character;
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begin
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loop
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exit when End_Of_File(Context.File);
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Get(Context.File, C);
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exit when End_Of_File(Context.File);
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case C is
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when '#' => Skip_Line(Context.File);
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when '[' => exit;
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when 'L' => exit;
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when 'C' => exit;
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when 'S' => Get(Context.File, C); exit;
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when 'M' => Get(Context.File, C); exit;
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when others => null;
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end case;
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end loop;
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Goto_Data(Context.File);
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if End_Of_File(Context.File) then
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Close(Context.File);
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Next := Finish;
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else
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case C is
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when '[' => Next := Digest_Length;
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when 'L' => Next := Message_Length;
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when 'e' => Next := Seed; -- second char from "Seed"
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when 'C' => Next := Count;
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when 's' => Next := Message_Block; -- second char from "Msg"
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when 'D' => Next := Message_Digest; -- second char from "MD"
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when others => raise Format_Violation;
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end case;
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end if;
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end Get_Next_type;
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procedure Get_Integer(Context : in out Context_T; Value : out Integer) is
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begin
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Get(Context.File, Value);
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end Get_Integer;
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procedure Get_Data(Context : in out Context_T; Block : out u8_Array) is
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L,P : Natural := 0;
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I : Integer := Block'First;
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S : String(1 .. 80);
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begin
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L := Block'Length * 2;
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loop
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if L > S'Length then
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P := S'Length;
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else
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P := L;
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end if;
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Get(Context.File, S(1 .. P));
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Block(I .. I + P / 2 - 1) := From_Hex(S(1 .. P));
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L := L - P;
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I := I + P / 2;
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if L = 0 or End_Of_File(Context.File) then
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exit;
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end if;
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end loop;
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end Get_Data;
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procedure Test_With_File(FileName : in String) is
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f : Context_T;
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nt : Next_Type;
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count_val : Integer;
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dlen : Integer;
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len, lenb : Integer;
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DigestSize_Bytes : constant Natural := (DigestSize_Bits + 7 ) / 8;
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digest, ref_Digest : u8_Array(1 .. DigestSize_Bytes) := (others => 0);
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ok_test, fail_test, num : Natural := 0;
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seed_val : u8_Array(1 .. DigestSize_Bytes) := (others => 0);
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begin
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New_Line;
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Put("== " & FileName &" ==");
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Open(f, FileName);
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loop
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Get_Next_Type(f, nt);
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case nt is
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when Sha_Test_IO.Finish =>
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New_Line;
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Put(" (ok: " & Integer'Image(ok_test) & " / fail: " & Integer'Image(fail_test) & ")");
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New_Line;
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exit;
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when Digest_Length =>
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Get_Integer(f, dlen);
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when Seed =>
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Get_Data(f, Seed_Val);
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when Count =>
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Get_Integer(f, count_val);
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if num mod 64 = 0 then
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New_Line;
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Put(" ");
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Put(Item => num, Width => 6);
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Put(" : ");
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end if;
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num := num + 1;
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declare
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blob : u8_Array(1 .. 3 * DigestSize_Bytes);
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begin
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blob(1 + 0 * DigestSize_Bytes .. 1 * DigestSize_Bytes) := Seed_Val;
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blob(1 + 1 * DigestSize_Bytes .. 2 * DigestSize_Bytes) := Seed_Val;
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blob(1 + 2 * DigestSize_Bytes .. 3 * DigestSize_Bytes) := Seed_Val;
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for i in 1 .. 1000 loop
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Hash(blob, Digest);
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blob(1 .. 2 * DigestSize_Bytes) := blob(1 + 1 * DigestSize_Bytes .. 3 * DigestSize_Bytes);
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blob(1 + 2 * DigestSize_Bytes .. 3 * DigestSize_Bytes) := Digest;
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end loop;
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Seed_Val := Digest;
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end;
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when Message_Length =>
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Get_Integer(f, len);
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if len = 0 then
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lenb := 1;
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else
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lenb := (len + 7) / 8;
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end if;
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when Message_Digest =>
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Get_Data(f, ref_digest(1 .. dlen));
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if ref_digest = digest then
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ok_test := ok_test + 1;
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Put('*');
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else
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fail_test := fail_test + 1;
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Put('!');
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end if;
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when Message_Block =>
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declare
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buf : u8_Array(1 .. lenb);
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begin
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if num mod 64 = 0 then
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New_Line;
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Put(" ");
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Put(Item => num, Width => 6);
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Put(" : ");
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end if;
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num := num + 1;
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Get_Data(f, buf);
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Hash(buf, digest(1 .. dlen), len);
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end;
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end case;
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end loop;
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end;
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end Sha_Test_IO;
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