in reply to hexadecimal division

See also String::LRC. Regards, Karl

«The Crux of the Biscuit is the Apostrophe»

perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'Help

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Re^2: hexadecimal division
by Anonymous Monk on Dec 16, 2017 at 17:16 UTC
    That module calculates the first part of the OP's question (a simple xor checksum), but not the important part.
      The first part is already buggy, cause something like $result == "\x05" not doing what the OP thinks it does.

      Cheers Rolf
      (addicted to the Perl Programming Language and ☆☆☆☆ :)
      Wikisyntax for the Monastery

      "...not the important part."

      Thanks. I didn't read the friendly manual. Regards, Karl

      «The Crux of the Biscuit is the Apostrophe»

      perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'Help

        More like "use the source, Luke" in this case. Another poorly documented CPAN module, sigh.