Question

Which of these is the current recommended symmetric cryptography algorithm?

A. RSA

B. Caesar

C. DES

D. None of these

Explain your choice please! Thank you

Answer 1

Answer Option A

Reason: Option A is correct because RSA algorithm is used by most of the organisation to generate keys which can be used to identify a user uniquely. Since it uses simple mathematics which makes the cryptographic algorithm straightforward. Due the simplicity of the algorithm and the security it makes RSA the most widely used cryptographic algorithm right now.

Option B is incorrect because although Caesar is widely used it is not one of the recommended algorithm as in it the texts are shifted in a particular order and thus provides lesser security which can be intruded by any person

Option C is incorrect because DES algorithm is not used right now as it's 56 bit key is too short. Although double DES and triple DES are used right now but still it is not secure as an AES or RSA.

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