NETWORK SECURITY
DIGITAL SIGNATURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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symmetric key encryption algorithm
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asymmetric key encryption algorithm
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not an encryption algorithm
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none of the mentioned
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Detailed explanation-1: -In cryptography, the ElGamal encryption system is an asymmetric key encryption algorithm for public-key cryptography which is based on the Diffie–Hellman key exchange. It was described by Taher Elgamal in 1985.
Detailed explanation-2: -The Electronic Code Book (ECB) algorithm is a symmetric-key cryptographic algorithm. It is used for encrypting data and is not used in asymmetric-key cryptography. From the above explanation, we can conclude that the Electronic Code Book (ECB) algorithm is not used in asymmetric-key cryptography.
Detailed explanation-3: -The ElGamal encryption system is a public key encryption algorithm by Taher Elgamal [3] in 1985 that is based on the Diffie-Hellman key exchange.
Detailed explanation-4: -ElGamal is nondetermanistic because the encryptor selects a random exponent as a part of encryption method. For public key encryption, this randomization of the encrypted message is important.