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It took half an hour to patch B::Deparse to mangle names. How long do you think it'd take to re-implement the rest of that expensive suite?

--- /usr/libdata/perl5/i386-openbsd/5.6.1/B/Deparse.pm Thu Oct 3 2 +0:39:48 2002 +++ B/Obfuscate.pm Fri Mar 14 11:56:35 2003 @@ -6,7 +6,7 @@ # This is based on the module of the same name by Malcolm Beattie, # but essentially none of his code remains. -package B::Deparse; +package B::Obfuscate; use Carp 'cluck', 'croak'; use B qw(class main_root main_start main_cv svref_2object opnumber OPf_WANT OPf_WANT_VOID OPf_WANT_SCALAR OPf_WANT_LIST @@ -208,6 +208,13 @@ # \f - flush left (no indent) # \cK - kill following semicolon, if any +sub rot13 { + my $text = shift; + $text =~ tr/a-zA-Z/n-zA-Zm-z/; + + return $text; +} + sub null { my $op = shift; return class($op) eq "NULL"; @@ -376,7 +383,7 @@ sub compile { my(@args) = @_; return sub { - my $self = B::Deparse->new(@args); + my $self = B::Obfuscate->new(@args); $self->stash_subs("main"); $self->{'curcv'} = main_cv; $self->walk_sub(main_cv, main_start); @@ -784,7 +791,7 @@ if ($name =~ /^\^../) { $name = "{$name}"; # ${^WARNING_BITS} etc } - return $stash . $name; + return $stash . rot13($name); } # Notice how subs and formats are inserted between statements here @@ -1872,7 +1879,7 @@ sub padname { my $self = shift; my $targ = shift; - return $self->padname_sv($targ)->PVX; + return rot13($self->padname_sv($targ)->PVX); } sub padany {

Seeking Green geeks in Minnesota


In reply to Re: Here is a commercial obfuscator by diotalevi
in thread Here is a commercial obfuscator by Anonymous Monk

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