I don't know if it's the "best" way by any standards but Digest::MD5 will provide a longer output. "md5_hex" ensures no '/' character. 
use Digest::MD5 qw(md5_hex);
my $digest = md5_hex($data);

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In reply to Re: best way to encrypt long file names? by roubi
in thread best way to encrypt long file names? by keiusui

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