<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Introduction</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.ssdeep.html">ssdeep</a></div> <div class="next" style="text-align: right; float: right;"><a href="ssdeep.setup.html">Installing/Configuring</a></div> <div class="up"><a href="book.ssdeep.html">ssdeep</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="intro.ssdeep" class="preface"> <h1 class="title">Introduction</h1> <p class="para"> ssdeep is a utility for creating and comparing fuzzy hashes or <a href="http://dfrws.org/2006/proceedings/12-Kornblum.pdf" class="link external">» context-triggered piecewise hashing</a>. </p> <p class="para"> Fuzzy hashing can match signatures which have "...sequences of identical bytes in the same order, although bytes in between these sequences may be different in both content and length". (<a href="http://ssdeep.sourceforge.net" class="link external">» ssdeep project page</a>) </p> <p class="para"> This extension provides functions for creating and comparing fuzzy hashes. </p> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.ssdeep.html">ssdeep</a></div> <div class="next" style="text-align: right; float: right;"><a href="ssdeep.setup.html">Installing/Configuring</a></div> <div class="up"><a href="book.ssdeep.html">ssdeep</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>
