openssl_pkey_new Generates a new private key &reftitle.description; resourceopenssl_pkey_new arrayconfigargs openssl_pkey_new generates a new private and public key pair. The public component of the key can be obtained using openssl_pkey_get_public. ¬e.openssl.cnf; &reftitle.parameters; configargs You can finetune the key generation (such as specifying the number of bits) using configargs. See openssl_csr_new for more information about configargs. &reftitle.returnvalues; Returns a resource identifier for the pkey on success, or &false; on error.