Remove lookup table for speed, add vector datatype support for CPU and unit-test script for -m 24900

2021-03-27 14:08:22 +01:00
parent 98ee8c4168
commit de19c31dee
6 changed files with 199 additions and 297 deletions
@@ -0,0 +1,58 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+use MIME::Base64 qw (encode_base64 decode_base64);
+
+use Digest::MD5 qw (md5);
+
+sub module_constraints { [[0, 256], [-1, -1], [0, 55], [-1, -1], [-1, -1]] }
+
+my $itoa62 = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+sub module_generate_hash
+{
+  my $word = shift;
+
+  my $digest = md5 ($word);
+
+  my @chksum;
+
+  for (my $i = 0, my $j = 0; $i < 16; $i += 2, $j += 1)
+  {
+    $chksum[$j] = (ord (substr ($digest, $i + 0, 1)) + ord (substr ($digest, $i + 1, 1))) % 62;
+
+printf ("%d\n", $chksum[$j]);
+
+    $chksum[$j] = substr ($itoa62, $chksum[$j], 1);
+  }
+
+  my $res = join "", @chksum;
+
+  my $hash = sprintf ("%s", $res);
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  my ($hash, $word) = split (':', $line);
+
+  return unless defined $hash;
+  return unless defined $word;
+
+  my $word_packed = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word_packed);
+
+  return ($new_hash, $word);
+}
+
+1;