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Editing: authentication_mechanisms.html

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<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#authentication-and-authorization-identifiers">Authentication and authorization identifiers</a></li>
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<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#the-plain-mechanism-sasl-checkpass-and-plaintext-passwords">The PLAIN mechanism, <code class="docutils literal"><span class="pre">sasl_checkpass()</span></code>, and plaintext passwords</a></li>
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<li class="toctree-l2"><a class="reference internal" href="manpages.html">Man pages</a><ul>
<li class="toctree-l3"><a class="reference internal" href="manpages.html#library-files">(3) Library Files</a><ul>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl.html"><strong>SASL</strong> - SASL Authentication Library</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_authorize_t.html"><strong>sasl_authorize_t</strong> - The SASL authorization callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_auxprop.html"><strong>sasl_auxprop</strong> - How to work with SASL auxiliary properties</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_auxprop_add_plugin.html"><strong>sasl_auxprop_add_plugin</strong> - add a SASL auxiliary property plugin</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_auxprop_getctx.html"><strong>sasl_auxprop_getctx</strong> - Acquire an auxiliary property context</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_auxprop_request.html"><strong>sasl_auxprop_request</strong> - Request auxiliary properties from SASL</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_callbacks.html"><strong>sasl_callbacks</strong> - How to work with SASL callbacks</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_canon_user_t.html"><strong>sasl_canon_user_t</strong> - Application-supplied user canonicalization function</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_canonuser_add_plugin.html"><strong>sasl_canonuser_add_plugin</strong> - add a SASL user canonicalization plugin</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_chalprompt_t.html"><strong>sasl_chalprompt_t</strong> - Realm acquisition callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_checkapop.html"><strong>sasl_checkapop</strong> - Check an APOP challenge/response</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_checkpass.html"><strong>sasl_checkpass</strong> - Check a plaintext password</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_add_plugin.html"><strong>sasl_client_add_plugin</strong> - add a SASL client plugin</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_done.html"><strong>sasl_client_done</strong> - Cleanup function</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_init.html"><strong>sasl_client_init</strong> - SASL client authentication initialization</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_new.html"><strong>sasl_client_new</strong> - Create a new client authentication object</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_plug_init_t.html"><strong>sasl_client_plug_init_t</strong> - client plug‐in entry point</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_start.html"><strong>sasl_client_start</strong> - Begin an authentication negotiation</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_step.html"><strong>sasl_client_step</strong> - Perform a step in the authentication negotiation</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_decode.html"><strong>sasl_decode</strong> - Decode data received</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_decode64.html"><strong>sasl_decode64</strong> - Decode base64 string</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_dispose.html"><strong>sasl_dispose</strong> - Dispose of a SASL connection object</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_done.html"><strong>sasl_done</strong> - Dispose of a SASL connection object</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_encode.html"><strong>sasl_encode</strong> - Encode data for transport to authenticated host</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_encode64.html"><strong>sasl_encode64</strong> - Encode base64 string</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_encodev.html"><strong>sasl_encodev</strong> - Encode data for transport to authenticated host</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_erasebuffer.html"><strong>sasl_erasebuffer</strong> - erase buffer</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_errdetail.html"><strong>sasl_errdetail</strong> - Retrieve  detailed information about an error</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_errors.html"><strong>sasl_errors</strong> - SASL error codes</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_errstring.html"><strong>sasl_errstring</strong> - Translate a SASL return code to a human-readable form</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getcallback_t.html"><strong>sasl_getcallback_t</strong> - callback function to lookup a sasl_callback_t for a connection</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getconfpath_t.html"><strong>sasl_getconfpath_t</strong> - The SASL callback to indicate location of the config files</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getopt_t.html"><strong>sasl_getopt_t</strong> - The SASL get option callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getpath_t.html"><strong>sasl_getpath_t</strong> - The SASL callback to indicate location of the mechanism drivers</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getprop.html"><strong>sasl_getprop</strong> - Get a SASL property</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getrealm_t.html"><strong>sasl_getrealm_t</strong> - Realm Acquisition Callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getsecret_t.html"><strong>sasl_getsecret_t</strong> - The SASL callback for secrets (passwords)</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getsimple_t.html"><strong>sasl_getsimple_t</strong> - The SASL callback for username/authname/realm</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_global_listmech.html"><strong>sasl_global_listmech</strong> - Retrieve a list of the supported SASL mechanisms</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_idle.html"><strong>sasl_idle</strong> - Perform precalculations during an idle period</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_listmech.html"><strong>sasl_listmech</strong> - Retrieve a list of the supported SASL mechanisms</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_log_t.html"><strong>sasl_log_t</strong> - The SASL logging callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_add_plugin.html"><strong>sasl_server_add_plugin</strong> - add a SASL server plugin</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_done.html"><strong>sasl_server_done</strong> - Cleanup function</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_init.html"><strong>sasl_server_init</strong> - SASL server authentication initialization</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_new.html"><strong>sasl_server_new</strong> - Create a new server authentication object</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_plug_init_t.html"><strong>sasl_server_plug_init_t</strong> - server plug‐in entry point</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_start.html"><strong>sasl_server_start</strong> - Begin an authentication negotiation</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_step.html"><strong>sasl_server_step</strong> - Perform a step in the authentication negotiation</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_userdb_checkpass_t.html"><strong>sasl_server_userdb_checkpass_t</strong> - Plaintext Password Verification Callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_userdb_setpass_t.html"><strong>sasl_server_userdb_setpass_t</strong> - UserDB Plaintext Password Setting Callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_set_alloc.html"><strong>sasl_set_alloc</strong> - set the memory allocation functions used by the SASL library</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_set_mutex.html"><strong>sasl_set_mutex</strong> - set the mutex lock functions used by the SASL library</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_seterror.html"><strong>sasl_seterror</strong> - set the error string</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_setpass.html"><strong>sasl_setpass</strong> - Check a plaintext password</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_setprop.html"><strong>sasl_setprop</strong> - Set a SASL property</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_user_exists.html"><strong>sasl_user_exists</strong> - Check if a user exists on server</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_usererr.html"><strong>sasl_usererr</strong> - Remove information leak about accounts from sasl error codes</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_utf8verify.html"><strong>sasl_utf8verify</strong> - Verify a string is valid utf8</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_verifyfile_t.html"><strong>sasl_verifyfile_t</strong> - The SASL file verification</a></li>
</ul>
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<li class="toctree-l2"><a class="reference internal" href="auxiliary_properties.html">Auxiliary Properties</a><ul>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#auxiliary-properties-and-the-glue-layer">Auxiliary Properties and the Glue Layer</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#passwords-and-other-data">Passwords and other Data</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#sasldb">sasldb</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#ldapdb">ldapdb</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#sql">sql</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#user-canonicalization">User Canonicalization</a></li>
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</li>
<li class="toctree-l2 current"><a class="current reference internal" href="#">Authentication Mechanisms</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#mechanisms">Mechanisms</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#anonymous">ANONYMOUS</a></li>
<li class="toctree-l4"><a class="reference internal" href="#cram-md5">CRAM-MD5</a></li>
<li class="toctree-l4"><a class="reference internal" href="#digest-md5">DIGEST-MD5</a></li>
<li class="toctree-l4"><a class="reference internal" href="#external">EXTERNAL</a></li>
<li class="toctree-l4"><a class="reference internal" href="#g2">G2</a></li>
<li class="toctree-l4"><a class="reference internal" href="#gssapi">GSSAPI</a></li>
<li class="toctree-l4"><a class="reference internal" href="#gss-spegno">GSS-SPEGNO</a></li>
<li class="toctree-l4"><a class="reference internal" href="#kerberos-v4">KERBEROS_V4</a></li>
<li class="toctree-l4"><a class="reference internal" href="#login">LOGIN</a></li>
<li class="toctree-l4"><a class="reference internal" href="#ntlm">NTLM</a></li>
<li class="toctree-l4"><a class="reference internal" href="#otp">OTP</a></li>
<li class="toctree-l4"><a class="reference internal" href="#passdss">PASSDSS</a></li>
<li class="toctree-l4"><a class="reference internal" href="#plain">PLAIN</a></li>
<li class="toctree-l4"><a class="reference internal" href="#scram">SCRAM</a></li>
<li class="toctree-l4"><a class="reference internal" href="#srp">SRP</a></li>
<li class="toctree-l4"><a class="reference internal" href="#non-sasl-authentication">Non-SASL Authentication</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="#summary">Summary</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="pwcheck.html">Pwcheck</a><ul>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#auxprop">Auxprop</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#auxprop-hashed">Auxprop-hashed</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#saslauthd">Saslauthd</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#authdaemon">Authdaemon</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#alwaystrue">Alwaystrue</a></li>
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<li class="toctree-l2"><a class="reference internal" href="faq.html">Frequently Asked Questions</a><ul>
<li class="toctree-l3"><a class="reference internal" href="faqs/authorize-vs-authenticate.html">What is the difference between an Authorization ID and a Authentication ID?</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/crammd5-digestmd5.html">Why do CRAM-MD5 and DIGEST-MD5 not work with CyrusSaslauthd?</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/openldap-sasl-gssapi.html">How do I configure OpenLDAP +SASL+GSSAPI?</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/plaintextpasswords.html">Why does CyrusSasl store plaintext passwords in its databases?</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/rfcs.html">RFCs and drafts</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/upgrade-saslv2.html">Why am I having a problem running dbconverter-2 to upgrade from SASLv1 to SASLv2?</a></li>
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<li class="toctree-l3"><a class="reference internal" href="appconvert.html#tips-for-servers">Tips for Servers</a></li>
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<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#background">Background</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#how-did-the-world-work-before-sasl">How did the world work before SASL?</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#sasl-to-the-rescue">SASL to the rescue!</a></li>
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<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#what-is-the-cyrus-sasl-library-good-for">What is the Cyrus SASL library good for?</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#what-does-the-cyrus-sasl-library-do">What does the Cyrus SASL library do?</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#what-doesn-t-the-cyrus-sasl-library-do">What doesn’t the Cyrus SASL library do?</a></li>
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<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#how-does-this-look-in-code">How does this look in code</a></li>
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<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#id1">How does this look in code?</a></li>
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<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#example-applications-that-come-with-the-cyrus-sasl-library">Example applications that come with the Cyrus SASL library</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#sample-client-and-sample-server"><cite>sample-client</cite> and <cite>sample-server</cite></a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#cyrus-imapd-v2-1-0-or-later">Cyrus imapd v2.1.0 or later</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#imtest-from-cyrus-2-1-0-or-later"><cite>imtest</cite>, from Cyrus 2.1.0 or later</a></li>
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<li class="toctree-l4"><a class="reference internal" href="developer/plugprog.html#use-of-sasl-utils-t">Use of sasl_utils_t</a></li>
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<p class="caption"><span class="caption-text">IMAP</span></p>
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  <div class="section" id="authentication-mechanisms">
<span id="id1"></span><h1>Authentication Mechanisms<a class="headerlink" href="#authentication-mechanisms" title="Permalink to this headline">¶</a></h1>
<div class="section" id="mechanisms">
<h2>Mechanisms<a class="headerlink" href="#mechanisms" title="Permalink to this headline">¶</a></h2>
<div class="section" id="anonymous">
<h3>ANONYMOUS<a class="headerlink" href="#anonymous" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="cram-md5">
<h3>CRAM-MD5<a class="headerlink" href="#cram-md5" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="digest-md5">
<h3>DIGEST-MD5<a class="headerlink" href="#digest-md5" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="external">
<h3>EXTERNAL<a class="headerlink" href="#external" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="g2">
<h3>G2<a class="headerlink" href="#g2" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="gssapi">
<h3>GSSAPI<a class="headerlink" href="#gssapi" title="Permalink to this headline">¶</a></h3>
<p>Not sure how to get GSSAPI going? Check out our <a class="reference internal" href="gssapi.html#gssapi"><span class="std std-ref">GSSAPI configuration guide</span></a>.</p>
</div>
<div class="section" id="gss-spegno">
<h3>GSS-SPEGNO<a class="headerlink" href="#gss-spegno" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="kerberos-v4">
<h3>KERBEROS_V4<a class="headerlink" href="#kerberos-v4" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="login">
<h3>LOGIN<a class="headerlink" href="#login" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="ntlm">
<h3>NTLM<a class="headerlink" href="#ntlm" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="otp">
<h3>OTP<a class="headerlink" href="#otp" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><ul class="simple">
<li>OTP-MD4</li>
<li>OTP-MD5</li>
<li>OTP-SHA1</li>
</ul>
</div></blockquote>
</div>
<div class="section" id="passdss">
<h3>PASSDSS<a class="headerlink" href="#passdss" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><ul class="simple">
<li>PASSDSS-3DES-1</li>
</ul>
</div></blockquote>
</div>
<div class="section" id="plain">
<h3>PLAIN<a class="headerlink" href="#plain" title="Permalink to this headline">¶</a></h3>
</div>
<div class="section" id="scram">
<h3>SCRAM<a class="headerlink" href="#scram" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><ul class="simple">
<li>SCRAM-SHA-1</li>
<li>SCRAM-SHA-256</li>
</ul>
</div></blockquote>
</div>
<div class="section" id="srp">
<h3>SRP<a class="headerlink" href="#srp" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><ul class="simple">
<li>mda=sha1,rmd160,md5</li>
<li>confidentiality=des-ofb,des-ede-ofb,aes-128-ofb,bf-ofb,cast5-ofb,idea-ofb</li>
</ul>
</div></blockquote>
</div>
<div class="section" id="non-sasl-authentication">
<h3>Non-SASL Authentication<a class="headerlink" href="#non-sasl-authentication" title="Permalink to this headline">¶</a></h3>
</div>
</div>
<hr class="docutils" />
<div class="section" id="summary">
<h2>Summary<a class="headerlink" href="#summary" title="Permalink to this headline">¶</a></h2>
<p>This table shows what security flags and features are supported by each
of the mechanisms provided by the Cyrus SASL Library.</p>
<table border="1" class="docutils">
<colgroup>
<col width="10%" />
<col width="7%" />
<col width="7%" />
<col width="7%" />
<col width="6%" />
<col width="7%" />
<col width="6%" />
<col width="4%" />
<col width="6%" />
<col width="8%" />
<col width="10%" />
<col width="7%" />
<col width="5%" />
<col width="4%" />
<col width="4%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td>&#160;</td>
<td rowspan="2">MAX SSF</td>
<td colspan="7">SECURITY PROPERTIES</td>
<td colspan="6">FEATURES</td>
</tr>
<tr class="row-even"><td>&#160;</td>
<td colspan="7">NOPLAIN | NOACTIVE | NODICT | FORWARD | NOANON | CRED | MUTUAL</td>
<td colspan="6">CLT FIRST | SRV FIRST    | SRV LAST | PROXY | BIND | HTTP</td>
</tr>
<tr class="row-odd"><td>ANONYMOUS</td>
<td>0</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-even"><td>CRAM-MD5</td>
<td>0</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-odd"><td>DIGEST-MD5</td>
<td>128</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>reauth</td>
<td>initial auth</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
</tr>
<tr class="row-even"><td>EXTERNAL</td>
<td>0</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-odd"><td>G2</td>
<td>56</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
</tr>
<tr class="row-even"><td>GSSAPI</td>
<td>56</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-odd"><td>GSS-SPNEGO</td>
<td>56</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
</tr>
<tr class="row-even"><td>KERBEROS_V4</td>
<td>56</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-odd"><td>LOGIN</td>
<td>0</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-even"><td>NTLM</td>
<td>0</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
</tr>
<tr class="row-odd"><td>OTP</td>
<td>0</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-even"><td>PASSDSS</td>
<td>112</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-odd"><td>PLAIN</td>
<td>0</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
<tr class="row-even"><td>SCRAM</td>
<td>0</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>?</td>
</tr>
<tr class="row-odd"><td>SRP</td>
<td>128</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>X</td>
<td>X</td>
<td>&#160;</td>
<td>&#160;</td>
</tr>
</tbody>
</table>
<p>Understanding this table:</p>
<p>Security Properties:</p>
<ul class="simple">
<li><strong>MAX SSF</strong> - The maximum Security Strength Factor supported by the mechanism (roughly the number of bits of encryption provided, but may have other meanings, for example an SSF of 1 indicates integrity protection only, no encryption).</li>
<li><strong>NOPLAIN</strong> - Mechanism is not susceptable to simple passive (eavesdropping) attack.</li>
<li><strong>NOACTIVE</strong> - Protection from active (non-dictionary) attacks during authentication exchange. (Implies MUTUAL).</li>
<li><strong>NODICT</strong> - Not susceptable to passive dictionary attack.</li>
<li><strong>NOFORWARD</strong> - Breaking one session won’t help break the next.</li>
<li><strong>NOANON</strong> - Don’t permit anonymous logins.</li>
<li><strong>CRED</strong> - Mechanism can pass client credentials.</li>
<li><strong>MUTUAL</strong> - Supports mutual authentication (authenticates the server to the client)</li>
</ul>
<p>Features:</p>
<ul class="simple">
<li><strong>CLTFIRST</strong> - The client should send first in this mechanism.</li>
<li><strong>SRVFIRST</strong> - The server must send first in this mechanism.</li>
<li><strong>SRVLAST</strong> - This mechanism supports server-send-last configurations.</li>
<li><strong>PROXY</strong> - This mechanism supports proxy authentication.</li>
<li><strong>BIND</strong> - This mechanism supports channel binding.</li>
<li><strong>HTTP</strong> - This mechanism has a profile for HTTP.</li>
</ul>
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