php man page for openssl_pkey_new

OPENSSL_PKEY_NEW(3)							 1						       OPENSSL_PKEY_NEW(3)

openssl_pkey_new - Generates a new private key

SYNOPSIS
       resource openssl_pkey_new ([array  $configargs])

DESCRIPTION
       openssl_pkey_new(3)   generates	 a   new  private  and	public	key  pair.  The  public  component  of	the  key  can  be  obtained  using
       openssl_pkey_get_public(3).

       Note

	       You need to have a valid openssl.cnf installed for this function to operate correctly. See the notes under the installation section
	      for more information.

PARAMETERS
	      o $configargs
		-  You	can finetune the key generation (such as specifying the number of bits) using $configargs. See openssl_csr_new(3) for more
		information about $configargs.

RETURN VALUES
	Returns a resource identifier for the pkey on success, or FALSE on error.

PHP Documentation Group 												       OPENSSL_PKEY_NEW(3)