key = Random.new().read(DES3.key_size[-1])
des3enc = DES3.new(key, DES3.MODE_CBC, iv)
des3dec = DES3.new(key, DES3.MODE_CBC, iv)
des3dec.decrypt(des3enc.encrypt('12345678abcdefgh12345678'))
First 8 byes of my encrypted data corrupting using 3DES and CBC