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Encrypting an IV with XEX using a block cipher and XORing on the plaintext: Is this scheme valid?

pf flag

I had an idea to make XEX mode parallelizable at CPU level.

Let's suppose I take an IV, XOR with random data, encrypt, XOR again with another data, and XOR on the plaintext

Would this encipherment scheme be valid? Would it be secure?

mangohost

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