Answer this simple computer science question. In the context of cryptography, what are the differences between a cipher that uses symmetric keys and a cipher that uses asymmetric keys ? The industry...

Answer this simple computer science question.

In the context of cryptography, what are the differences between a cipher that usessymmetric keys and a cipher that usesasymmetric keys? The industry standard for the size of the RSA public key is much bigger than the size of a symmetric key? Why? Are ciphers based on symmetric keys not s secure as RSA?