How can I calculate the MD5 message digest of a Unicode string in Perl
5.8? The MD5 hash algorithm naturally expects a sequence of bytes as its
input, and I have a string with a sequence of characters. I tried
$ perl -e 'use Digest::MD5 qw(md5_hex); print md5_hex("\x{20ac}");'
Wide character in subroutine entry at -e line 1.
but it seems that I have to explicitely convert my character string to a
byte sequence first.
How can I do this most efficently (keeping in mind, that it ought to be
a NOP internally as the string is already stored in UTF-8)?
Markus
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Markus G. Kuhn, Computer Laboratory, University of Cambridge, UK
Email: mkuhn at acm.org, WWW: <http://www.cl.cam.ac.uk/~mgk25/>
