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Consider the RSA system with n = 3 8 3 * 5 6 3 ( so n = 2 1 5 6 2 9 )
Consider the RSA system with n so n and public key e So a plaintext m
will be encrypted into c Em where
Em mmod n
Prove that every ciphertext c satisfies Ec c mod nHint: use Fermat's Theorem and the Chinese
Remainder Theorem. The notation EHcL stands for EHEH EHcLLL
Give an easy way for a cryptanalyst to recover plaintext m from ciphertext c
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