key words

here the code of my header.php

<title><?php bloginfo(‘name’); ?><?php wp_title(); ?></title>
<?php if ( is_single() ) { ?> » Blog Archive <?php } ?>
<meta name=”keywords” content=”<?php bloginfo(‘name’); ?><?php wp_title(); ?>” />
<meta name=”description” content=”<?php bloginfo(‘name’); ?><?php wp_title(); ?>” />

<meta name=”generator” content=”WordPress <?php bloginfo(‘version’); ?>” />

in this way I think that the keywords are the post title.

is correct ?