I have a doubt about parallelizability and preprocessing in modes of operation.
I understand that these two technologies are able just when the "block" is independent. In another way, ad example in CBC, since the second(and so on) block depend on the previous one, we can't apply this two property.
I saw this question for understand this.
I tried to invent a mode like this
I hope that I don't wrong anything.. but in this case, I can apply nobody's property (in encryption and decryption). I Invent this mode inspiring by CBC. In fact, I can't parallelize the encrypt and decryption too (because for the second block I need the first one to compute the XOR (the same for the decryption).
The preprocessing is pretty the same because the block depends on each other, so without XOR, I can't do more.
Does anyone agree with me? Or I m wronging?