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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Chapter 7. Glossary of PAM related terms</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="Linux-PAM_ADG.html" title="The Linux-PAM Application Developers' Guide"><link rel="up" href="Linux-PAM_ADG.html" title="The Linux-PAM Application Developers' Guide"><link rel="prev" href="adg-porting.html" title="Chapter 6. Porting legacy applications"><link rel="next" href="adg-example.html" title="Chapter 8. An example application"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 7. Glossary of PAM related terms</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="adg-porting.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="adg-example.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="adg-glossary"></a>Chapter 7. Glossary of PAM related terms</h1></div></div></div><p>
      The following are a list of terms used within this document.
    </p><div class="variablelist"><dl class="variablelist"><dt><span class="term">Authentication token</span></dt><dd><p>
            Generally, this is a password. However, a user can authenticate
            him/herself in a variety of ways. Updating the user's
            authentication token thus corresponds to
            <span class="emphasis"><em>refreshing</em></span> the object they use to
            authenticate themself with the system. The word password is
            avoided to keep open the possibility that the authentication
            involves a retinal scan or other non-textual mode of
            challenge/response.
          </p></dd><dt><span class="term">Credentials</span></dt><dd><p>
            Having successfully authenticated the user, PAM is able to
            establish certain characteristics/attributes of the user.
            These are termed <span class="emphasis"><em>credentials</em></span>. Examples
            of which are group memberships to perform privileged tasks
            with, and <span class="emphasis"><em>tickets</em></span> in the form of
            environment variables etc. . Some user-credentials, such as
            the user's UID and GID (plus default group memberships) are
            not deemed to be PAM-credentials. It is the responsibility
            of the application to grant these directly.
          </p></dd></dl></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="adg-porting.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="adg-example.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 6. Porting legacy applications </td><td width="20%" align="center"><a accesskey="h" href="Linux-PAM_ADG.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 8. An example application</td></tr></table></div></body></html>

Chapter 7. Glossary of PAM related terms

Chapter 7. Glossary of PAM related terms
Prev		Next

Chapter 7. Glossary of PAM related terms

The following are a list of terms used within this document.

Authentication token: Generally, this is a password. However, a user can authenticate him/herself in a variety of ways. Updating the user's authentication token thus corresponds to refreshing the object they use to authenticate themself with the system. The word password is avoided to keep open the possibility that the authentication involves a retinal scan or other non-textual mode of challenge/response.
Credentials: Having successfully authenticated the user, PAM is able to establish certain characteristics/attributes of the user. These are termed credentials. Examples of which are group memberships to perform privileged tasks with, and tickets in the form of environment variables etc. . Some user-credentials, such as the user's UID and GID (plus default group memberships) are not deemed to be PAM-credentials. It is the responsibility of the application to grant these directly.

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Chapter 6. Porting legacy applications	Home	Chapter 8. An example application