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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RC4
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RSA
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SHA1
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3DES
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Detailed explanation-1: -Answer is D. Rivest Cipher 4 (RC4) is a symmetric encryption stream cipher, and a stream cipher is often the best choice for encrypting data of an unknown size, such as streaming video. Encryption is the best way to ensure the confidentiality of data.
Detailed explanation-2: -RC4 (also known as Rivest Cipher 4) is a form of stream cipher. It encrypts messages one byte at a time via an algorithm.
Detailed explanation-3: -RC4 generates a pseudorandom stream of bits (a keystream). As with any stream cipher, these can be used for encryption by combining it with the plaintext using bitwise exclusive or; decryption is performed the same way (since exclusive or with given data is an involution).
Detailed explanation-4: -There are many RC4 based ecosystems such as WEP, WPA, BitTorrent protocol encryption, Microsoft Point-to-Point Encryption, etc.