From: "David D." <lists@...>
Date: 2013-05-25T04:00:17+09:00
Subject: Re: why first 16 bytes are wrong with ruby openssl aes 128 cbc ?

Thank Ryan

I have the response my ruby code is wrong. The good code is here :

require 'openssl'

c = OpenSSL::Cipher::Cipher.new("aes-128-cbc")
c.decrypt
c.key =
"7ffb8032dff33aef9aa92e9ac96239d3".unpack('H*').to_s.unpack('a2'*16).map{|x|
x.hex}.pack('c'*16)
c.iv =
"00000000000000000000000000000001".unpack('H*').to_s.unpack('a2'*16).map{|x|
x.hex}.pack('c'*16)
data = File.read("/tmp/file_enc")
d = c.update(data)
d << c.final
file = File.open("/tmp/file_decrypt_ruby", "w")
file.write(d)
file.close

This code work very well.

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