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You could try to use the C cypher and fall back on the Perl one. Something like
my $cypher; if (eval { require Crypt::Twofish }) { $cypher = 'Crypt::Twofish'; } elsif (eval { require Crypt::Twofish_PP }) { warn("Crypt::Twofish not found. Falling back to slower Crypt::Twofi +sh_PP\n") if $DEBUG; $cypher = 'Crypt::Twofish_PP'; } else { die("Neither Crypt::Twofish nor Crypt::Twofish_PP was found. Aborti +ng"); }
my $cypher; foreach (qw( Crypt::Twofish Crypt::Twofish_PP )) { my $mod = $_; my $file = $_; $file =~ s{::}{/}g; $file .= '.pm'; if (eval { require $file }) { $cypher = $mod; last; } } die("No acceptable encryption algorithm found. Aborting") if not defined $cypher;

In reply to Re^3: File::Slurp and encryption by ikegami
in thread File::Slurp and encryption by Solostian

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