eshark when your pairwise cipher suite count and AKM (Auth Key Management) suite count is too large? How do I go about resol

Two companies would like to communicate confidentially online. They also seek integrity and authenticity of the communication between each other. They require secret-key cryptography to achieve these goals. It is important for the companies that the ciphertexts exchanged are authentic and have not been altered in transit. Note that the communication between the companies comes in the form of short messages which would fit into one plaintext block of AES-128. Which of the following solutions is ideal for this scenario, where the companies share 2 secret keys, k1 which they can use for encryption and k2 which they can use for issuing and verifying MACs? Choose only 1 answer. O 1. T=HMACK2 (M) 2. C= AES-128-ENCk1(T) 3. Send C and T to the other company O 1.C-AES-128-ENCk1(M) 2. T-HMACK2(M) 3. Send C and T to the other company Any of the 3 solutions would suffice 1. C-AES-128-ENCk1(M) 2. T=HMACk2 (C) 3. Send C and T to the other company

In an SSL protocol, what are the four most important record subtypes to check for? Where do these symbols come from, and what do they represent?

Comparing cipher block chaining with cipher feedback mode in terms of the number of encryption operations necessary to transport a large file reveals some interesting differences.Which of these methods is more effective, and by what percentage?