RIJNDAEL 128 CBC (AES-256-CBC) encryption Ruby snippet

rijndael_128_cbc_encrypt.rb

require 'openssl'

key = '12345678901234567890123456789012'
iv = '1234567890123456'
data = 'abcdefghijklmnop'

cipher = OpenSSL::Cipher::AES.new(256, :CBC)
cipher.encrypt
cipher.padding = 32
cipher.key = key
cipher.iv = iv
encrypted = cipher.update(data) + cipher.final
encrypted = encrypted.unpack('H*')
puts encrypted # b91d3ece42c203729b38ae004e96efb9b64c41eeb074cad7ebafa3973181d233