COMPUTER ETHICS AND SECURITY
CRYPTOGRAPHY AND ENCRYPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CBC
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GCM
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ECB
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CTR
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Detailed explanation-1: -For example, ECB and CBC mode provide confidentiality, while other modes, such as Galois Counter Mode (GCM), provide both confidentiality and integrity protection.
Detailed explanation-2: -Galois/Counter Mode (GCM) is a block cipher mode of operation that uses universal hashing over a binary Galois field to provide authenticated encryption. It can be implemented in hardware to achieve high speeds with low cost and low latency.
Detailed explanation-3: -As discussed earlier, CCM mode performs authentication on the plaintext, and GCM performs it on the ciphertext. Since your inputs are all identical, you’re testing the CPU’s performance in hashing the same data repeatedly, against its ability to hash pseudorandom (encrypted) data that constantly changes.