Alice and Bob are strangers. Alice wants Bob to send her a private message A and be able to verify the integrity of the message. What should Bob do? (h() is a hash function and assume both Alice and Bob knows h(). Bob generates an encryption key k and relies on PKI to send Alice X, Y, H where Y=PubE(alice-pub,k), X-SymE(k,A), H=SymE(k,h(A)). This does not work because while Alice can read A, she cannot verify the integrity of the message This does not work because Bob cannot verify the public key of Alice This does not work because Alice cannot recover the encryption key k. This works

Why are prime numbers important in cryptography?

Do you know what you're trying to accomplish with this process? Decide on which types of authentication have which pros and drawbacks.

What is it about authentication that causes so much worry in the modern world?

In the world of cryptography, what would you say are the three most essential procedures?

Are there any possibilities for the data and connections to be encrypted from start to finish? What are the advantages of doing this? I would appreciate it if you could give me an illustration of how and why encryption is useful.

What is the absolute bare minimal number of keys required to utilize public key cryptography?

Use public-key cryptography with asymmetric encryption. Cryptography employs public keys.

Question 9  Full explain this question and text typing work only thanks

Do you know what the three fundamental steps of cryptography are?