c++ - utility and operation of the function "EVP_PKEY_meth_find"

Question

here is the function:

EVP_PKEY_meth_find (int type);

I would like to know what the "type" parameter corresponds to. I did not see an explanation in the openssl documentation.

ps : I would also like to know what purpose this function can actually serve ?

标签： c++opensslcryptography