> <a accesskey="n" href="pgfreespacemap.html" title="F.29. pg_freespacemap — examine the free space map">Next</a></td></tr></table><hr /></div><div class="sect1" id="PGCRYPTO"><div class="titlepage"><div><div><h2 class="title" style="clear: both">F.28. pgcrypto — cryptographic functions <a href="#PGCRYPTO" class="id_link">#</a></h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="pgcrypto.html#PGCRYPTO-GENERAL-HASHING-FUNCS">F.28.1. General Hashing Functions</a></sp