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: -Cryptographic Cipher block chaining turns plaintext into ciphertext and back again. Of the five DES modes, ECB is the simplest and weakest, because repeating plaintext generates repeating ciphertext.
Detailed explanation-2: -Electronic codebook (ECB) The disadvantage of this method is a lack of diffusion. Because ECB encrypts identical plaintext blocks into identical ciphertext blocks, it does not hide data patterns well. ECB is not recommended for use in cryptographic protocols.
Detailed explanation-3: -ECB mode is used to electronically code messages as their plaintext form. It is the simplest of all block cipher modes of operation. It does not add any randomness to the key stream, and it is the only mode that can be used to encrypt a single-bit stream.
Detailed explanation-4: -Since each block is at least 8 bytes large, block mode provides the ability for 64-bit arithmetic in the encryption algorithm. Stream Mode, a method of encryption in which each individual byte is encrypted. It is generally considered to be a weak form of encryption.