Question: Let W be a 64-bit secret key, and k a 56-bit key . Assume that E_k and D_k stands for DES encryption with key k

Let W be a 64-bit secret key, and k a 56-bit key . Assume that E_k and D_k stands for DES encryption with key k and DES decryption with key k respectively. Define a new encryption as follows: C=WE_k (P) Work out the decryption algorithm (formula)

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