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Prove that the RSA Cryptosystem is insecure against a chosen ciphertext attack. In particular, given a ciphertext y, describe how to choose a ciphertext y'=/y
Prove that the RSA Cryptosystem is insecure against a chosen ciphertext attack. In particular, given a ciphertext y, describe how to choose a ciphertext y'=/y such that knowledge of the plaintext x'=d_k(y') allows x=d_k(y) to be computed. Hint: Use the multiplicative property of the RSA Cryptosystem.
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