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) Common modulus attack. Assume that Alice and Bob share a same modulus 7 7 . Alice s public key is ( 7 7 ,
Common modulus attack. Assume that Alice and Bob share a same modulus Alices public key is Similarly Bobs public key is The encryption is as follows: Encex m mex mod N Consider that Eve sees that two ciphertexts and In addition, she knows that the two ciphertexts come from a single plaintext message. So meA mod N and meB mod N Can Eve construct a plaintext m from the two ciphertexts without knowing private keys, and N Explain the reason and compute the plaintext if it is
Common modulus attack. Assume that
Alice and Bob share a same modulus Alices
public key is Similarly Bobs public key
is The encryption is as follows:
Encex m mex mod N
Consider that Eve sees that two ciphertexts
and In addition, she knows that the two ciphertexts come from a single plaintext message.
So meA mod N and meB mod N Can
Eve construct a plaintext m from the two ciphertexts without knowing private keys, and N
Explain the reason and compute the plaintext if
it is
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