Currently Elliptic Curve (EC) is preferred over Rivest Shamir Adelman (RSA) in code.

This section involves the encryption algorithms used for digital signature creation and verification. The reason why it might be beneficial to restrain the allowed algorithms is to maintain a desired level of encryption strength. The more sensitive or the more entities depend on secure encryption of a particular set of data then generally the higher the bit size and/or the stronger the algorithm used. So depending on how vital user authentication is to the RP the chosen algorithms should be picked.