Suppose you receive a digital certificate that contains M and [h(M)]CA , where M = (Alice,...

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Programming

Suppose you receive a digital certificate that contains M and[h(M)]CA , where M = (Alice, Alice's public key) and\"CA\" is a Certificate Authority.

How do you verify the Signature?

Remember that:

[X]Bob indicates encryption via Bob's private key toX (signature)

h(X) indicates the cryptographic hash function applied to X

Group of answer choices

You decrypt the encrypted message using the CA's public key,then you compute the hash of [h(M)]CA, finally youcompare the two hashes

You decrypt the encrypted message using the CA's private key,then you compute the hash of [h(M)]CA, finally youcompare the two hashes

You decrypt the encrypted message using the CA's private key,then you compute the hash of M, finally you compare the twohashes

You decrypt the encrypted message using the CA's public key,then you compute the hash of M, finally you compare the twohashes

Answer & Explanation Solved by verified expert
4.5 Ratings (989 Votes)
ans the correct answer is the last one You decrypt the encrypted message using the CAs public key then you compute the hash of M finally you compare the two hashes Explanation the steps    See Answer
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