From: ruby gem <lists@...>
Date: 2012-05-08T14:16:28+09:00
Subject: Re: proper way to create truly new dup/cloned object?

okay I think it is either a bug in .dup or more likely a bug in .xor!,
because if it works or not depends on the string size:

@l = "aaaaaaaaaaaaaaaaaaaa"
cloned_l = @l.dup
subkey = "bbbbbbbbbbbbbbbbbbbb"
puts @l
puts cloned_l
cloned_l.xor!(subkey)
puts @l
puts cloned_l

#output

aaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaa
[formating doesn't show up]



###############################


require 'xor'
require 'openssl'

@l = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
cloned_l = @l.dup
subkey = "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"

puts @l
puts cloned_l
cloned_l.xor!(subkey)
puts @l
puts cloned_l

#output
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
[formating doesn't show up]
[formating doesn't show up]


where do you think the bug is?

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