EVP_PKEY_assign(3) - phpMan

EVP_PKEY_assign_DH (3ssl) - EVP_PKEY assignment functions
EVP_PKEY_assign_DSA (3ssl) - EVP_PKEY assignment functions
EVP_PKEY_assign_EC_KEY (3ssl) - EVP_PKEY assignment functions
EVP_PKEY_assign_POLY1305 (3ssl) - EVP_PKEY assignment functions
EVP_PKEY_assign_RSA (3ssl) - EVP_PKEY assignment functions
EVP_PKEY_assign_SIPHASH (3ssl) - EVP_PKEY assignment functions