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diff --git a/crypto/krb5/doc/html/formats/ccache_file_format.html b/crypto/krb5/doc/html/formats/ccache_file_format.html deleted file mode 100644 index 0218ef0c4934..000000000000 --- a/crypto/krb5/doc/html/formats/ccache_file_format.html +++ /dev/null @@ -1,295 +0,0 @@ - -<!DOCTYPE html> - -<html> - <head> - <meta charset="utf-8" /> - <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> - - <title>Credential cache file format — MIT Kerberos Documentation</title> - <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> - <link rel="stylesheet" type="text/css" href="../_static/agogo.css" /> - <link rel="stylesheet" type="text/css" href="../_static/kerb.css" /> - <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> - <script src="../_static/jquery.js"></script> - <script src="../_static/underscore.js"></script> - <script src="../_static/doctools.js"></script> - <link rel="author" title="About these documents" href="../about.html" /> - <link rel="index" title="Index" href="../genindex.html" /> - <link rel="search" title="Search" href="../search.html" /> - <link rel="copyright" title="Copyright" href="../copyright.html" /> - <link rel="next" title="Keytab file format" href="keytab_file_format.html" /> - <link rel="prev" title="Protocols and file formats" href="index.html" /> - </head><body> - <div class="header-wrapper"> - <div class="header"> - - - <h1><a href="../index.html">MIT Kerberos Documentation</a></h1> - - <div class="rel"> - - <a href="../index.html" title="Full Table of Contents" - accesskey="C">Contents</a> | - <a href="index.html" title="Protocols and file formats" - accesskey="P">previous</a> | - <a href="keytab_file_format.html" title="Keytab file format" - accesskey="N">next</a> | - <a href="../genindex.html" title="General Index" - accesskey="I">index</a> | - <a href="../search.html" title="Enter search criteria" - accesskey="S">Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__Credential cache file format">feedback</a> - </div> - </div> - </div> - - <div class="content-wrapper"> - <div class="content"> - <div class="document"> - - <div class="documentwrapper"> - <div class="bodywrapper"> - <div class="body" role="main"> - - <section id="credential-cache-file-format"> -<span id="ccache-file-format"></span><h1>Credential cache file format<a class="headerlink" href="#credential-cache-file-format" title="Permalink to this headline">¶</a></h1> -<p>There are four versions of the file format used by the FILE credential -cache type. The first byte of the file always has the value 5, and -the value of the second byte contains the version number (1 through -4). Versions 1 and 2 of the file format use native byte order for integer -representations. Versions 3 and 4 always use big-endian byte order.</p> -<p>After the two-byte version indicator, the file has three parts: the -header (in version 4 only), the default principal name, and a sequence -of credentials.</p> -<section id="header-format"> -<h2>Header format<a class="headerlink" href="#header-format" title="Permalink to this headline">¶</a></h2> -<p>The header appears only in format version 4. It begins with a 16-bit -integer giving the length of the entire header, followed by a sequence -of fields. Each field consists of a 16-bit tag, a 16-bit length, and -a value of the given length. A file format implementation should -ignore fields with unknown tags.</p> -<p>At this time there is only one defined header field. Its tag value is -1, its length is always 8, and its contents are two 32-bit integers -giving the seconds and microseconds of the time offset of the KDC -relative to the client. Adding this offset to the current time on the -client should give the current time on the KDC, if that offset has not -changed since the initial authentication.</p> -</section> -<section id="principal-format"> -<span id="cache-principal-format"></span><h2>Principal format<a class="headerlink" href="#principal-format" title="Permalink to this headline">¶</a></h2> -<p>The default principal is marshalled using the following informal -grammar:</p> -<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">principal</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">name</span> <span class="nb">type</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> <span class="p">[</span><span class="n">omitted</span> <span class="ow">in</span> <span class="n">version</span> <span class="mi">1</span><span class="p">]</span> - <span class="n">count</span> <span class="n">of</span> <span class="n">components</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> <span class="p">[</span><span class="n">includes</span> <span class="n">realm</span> <span class="ow">in</span> <span class="n">version</span> <span class="mi">1</span><span class="p">]</span> - <span class="n">realm</span> <span class="p">(</span><span class="n">data</span><span class="p">)</span> - <span class="n">component1</span> <span class="p">(</span><span class="n">data</span><span class="p">)</span> - <span class="n">component2</span> <span class="p">(</span><span class="n">data</span><span class="p">)</span> - <span class="o">...</span> - -<span class="n">data</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">length</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">value</span> <span class="p">(</span><span class="n">length</span> <span class="nb">bytes</span><span class="p">)</span> -</pre></div> -</div> -<p>There is no external framing on the default principal, so it must be -parsed according to the above grammar in order to find the sequence of -credentials which follows.</p> -</section> -<section id="credential-format"> -<span id="ccache-credential-format"></span><h2>Credential format<a class="headerlink" href="#credential-format" title="Permalink to this headline">¶</a></h2> -<p>The credential format uses the following informal grammar (referencing -the <code class="docutils literal notranslate"><span class="pre">principal</span></code> and <code class="docutils literal notranslate"><span class="pre">data</span></code> types from the previous section):</p> -<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">credential</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">client</span> <span class="p">(</span><span class="n">principal</span><span class="p">)</span> - <span class="n">server</span> <span class="p">(</span><span class="n">principal</span><span class="p">)</span> - <span class="n">keyblock</span> <span class="p">(</span><span class="n">keyblock</span><span class="p">)</span> - <span class="n">authtime</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">starttime</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">endtime</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">renew_till</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">is_skey</span> <span class="p">(</span><span class="mi">1</span> <span class="n">byte</span><span class="p">,</span> <span class="mi">0</span> <span class="ow">or</span> <span class="mi">1</span><span class="p">)</span> - <span class="n">ticket_flags</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">addresses</span> <span class="p">(</span><span class="n">addresses</span><span class="p">)</span> - <span class="n">authdata</span> <span class="p">(</span><span class="n">authdata</span><span class="p">)</span> - <span class="n">ticket</span> <span class="p">(</span><span class="n">data</span><span class="p">)</span> - <span class="n">second_ticket</span> <span class="p">(</span><span class="n">data</span><span class="p">)</span> - -<span class="n">keyblock</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">enctype</span> <span class="p">(</span><span class="mi">16</span> <span class="n">bits</span><span class="p">)</span> <span class="p">[</span><span class="n">repeated</span> <span class="n">twice</span> <span class="ow">in</span> <span class="n">version</span> <span class="mi">3</span><span class="p">]</span> - <span class="n">data</span> - -<span class="n">addresses</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">count</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">address1</span> - <span class="n">address2</span> - <span class="o">...</span> - -<span class="n">address</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">addrtype</span> <span class="p">(</span><span class="mi">16</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">data</span> - -<span class="n">authdata</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">count</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">authdata1</span> - <span class="n">authdata2</span> - <span class="o">...</span> - -<span class="n">authdata</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">ad_type</span> <span class="p">(</span><span class="mi">16</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">data</span> -</pre></div> -</div> -<p>There is no external framing on a marshalled credential, so it must be -parsed according to the above grammar in order to find the next -credential. There is also no count of credentials or marker at the -end of the sequence of credentials; the sequence ends when the file -ends.</p> -</section> -<section id="credential-cache-configuration-entries"> -<h2>Credential cache configuration entries<a class="headerlink" href="#credential-cache-configuration-entries" title="Permalink to this headline">¶</a></h2> -<p>Configuration entries are encoded as credential entries. The client -principal of the entry is the default principal of the cache. The -server principal has the realm <code class="docutils literal notranslate"><span class="pre">X-CACHECONF:</span></code> and two or three -components, the first of which is <code class="docutils literal notranslate"><span class="pre">krb5_ccache_conf_data</span></code>. The -server principal’s second component is the configuration key. The -third component, if it exists, is a principal to which the -configuration key is associated. The configuration value is stored in -the ticket field of the entry. All other entry fields are zeroed.</p> -<p>Programs using credential caches must be aware of configuration -entries for several reasons:</p> -<ul class="simple"> -<li><p>A program which displays the contents of a cache should not -generally display configuration entries.</p></li> -<li><p>The ticket field of a configuration entry is not (usually) a valid -encoding of a Kerberos ticket. An implementation must not treat the -cache file as malformed if it cannot decode the ticket field.</p></li> -<li><p>Configuration entries have an endtime field of 0 and might therefore -always be considered expired, but they should not be treated as -unimportant as a result. For instance, a program which copies -credentials from one cache to another should not omit configuration -entries because of the endtime.</p></li> -</ul> -<p>The following configuration keys are currently used in MIT krb5:</p> -<dl class="simple"> -<dt>fast_avail</dt><dd><p>The presence of this key with a non-empty value indicates that the -KDC asserted support for FAST (see <span class="target" id="index-0"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc6113.html"><strong>RFC 6113</strong></a>) during the initial -authentication, using the negotiation method described in -<span class="target" id="index-1"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc6806.html"><strong>RFC 6806</strong></a> section 11. This key is not associated with any -principal.</p> -</dd> -<dt>pa_config_data</dt><dd><p>The value of this key contains a JSON object representation of -parameters remembered by the preauthentication mechanism used -during the initial authentication. These parameters may be used -when refreshing credentials. This key is associated with the -server principal of the initial authentication (usually the local -krbtgt principal of the client realm).</p> -</dd> -<dt>pa_type</dt><dd><p>The value of this key is the ASCII decimal representation of the -preauth type number used during the initial authentication. This -key is associated with the server principal of the initial -authentication.</p> -</dd> -<dt>proxy_impersonator</dt><dd><p>The presence of this key indicates that the cache is a synthetic -delegated credential for use with S4U2Proxy. The value is the -name of the intermediate service whose TGT can be used to make -S4U2Proxy requests for target services. This key is not -associated with any principal.</p> -</dd> -<dt>refresh_time</dt><dd><p>The presence of this key indicates that the cache was acquired by -the GSS mechanism using a client keytab. The value is the ASCII -decimal representation of a timestamp at which the GSS mechanism -should attempt to refresh the credential cache from the client -keytab.</p> -</dd> -<dt>start_realm</dt><dd><p>This key indicates the realm of the ticket-granting ticket to be -used for TGS requests, when making a referrals request or -beginning a cross-realm request. If it is not present, the client -realm is used.</p> -</dd> -</dl> -</section> -</section> - - - <div class="clearer"></div> - </div> - </div> - </div> - </div> - <div class="sidebar"> - - <h2>On this page</h2> - <ul> -<li><a class="reference internal" href="#">Credential cache file format</a><ul> -<li><a class="reference internal" href="#header-format">Header format</a></li> -<li><a class="reference internal" href="#principal-format">Principal format</a></li> -<li><a class="reference internal" href="#credential-format">Credential format</a></li> -<li><a class="reference internal" href="#credential-cache-configuration-entries">Credential cache configuration entries</a></li> -</ul> -</li> -</ul> - - <br/> - <h2>Table of contents</h2> - <ul class="current"> -<li class="toctree-l1"><a class="reference internal" href="../user/index.html">For users</a></li> -<li class="toctree-l1"><a class="reference internal" href="../admin/index.html">For administrators</a></li> -<li class="toctree-l1"><a class="reference internal" href="../appdev/index.html">For application developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../plugindev/index.html">For plugin module developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build/index.html">Building Kerberos V5</a></li> -<li class="toctree-l1"><a class="reference internal" href="../basic/index.html">Kerberos V5 concepts</a></li> -<li class="toctree-l1 current"><a class="reference internal" href="index.html">Protocols and file formats</a><ul class="current"> -<li class="toctree-l2 current"><a class="current reference internal" href="#">Credential cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="keytab_file_format.html">Keytab file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="rcache_file_format.html">Replay cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="cookie.html">KDC cookie format</a></li> -<li class="toctree-l2"><a class="reference internal" href="freshness_token.html">PKINIT freshness tokens</a></li> -</ul> -</li> -<li class="toctree-l1"><a class="reference internal" href="../mitK5features.html">MIT Kerberos features</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build_this.html">How to build this documentation from the source</a></li> -<li class="toctree-l1"><a class="reference internal" href="../about.html">Contributing to the MIT Kerberos Documentation</a></li> -<li class="toctree-l1"><a class="reference internal" href="../resources.html">Resources</a></li> -</ul> - - <br/> - <h4><a href="../index.html">Full Table of Contents</a></h4> - <h4>Search</h4> - <form class="search" action="../search.html" method="get"> - <input type="text" name="q" size="18" /> - <input type="submit" value="Go" /> - <input type="hidden" name="check_keywords" value="yes" /> - <input type="hidden" name="area" value="default" /> - </form> - - </div> - <div class="clearer"></div> - </div> - </div> - - <div class="footer-wrapper"> - <div class="footer" > - <div class="right" ><i>Release: 1.21.3</i><br /> - © <a href="../copyright.html">Copyright</a> 1985-2024, MIT. - </div> - <div class="left"> - - <a href="../index.html" title="Full Table of Contents" - >Contents</a> | - <a href="index.html" title="Protocols and file formats" - >previous</a> | - <a href="keytab_file_format.html" title="Keytab file format" - >next</a> | - <a href="../genindex.html" title="General Index" - >index</a> | - <a href="../search.html" title="Enter search criteria" - >Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__Credential cache file format">feedback</a> - </div> - </div> - </div> - - </body> -</html>
\ No newline at end of file diff --git a/crypto/krb5/doc/html/formats/cookie.html b/crypto/krb5/doc/html/formats/cookie.html deleted file mode 100644 index f35a5e6e3f59..000000000000 --- a/crypto/krb5/doc/html/formats/cookie.html +++ /dev/null @@ -1,222 +0,0 @@ - -<!DOCTYPE html> - -<html> - <head> - <meta charset="utf-8" /> - <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> - - <title>KDC cookie format — MIT Kerberos Documentation</title> - <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> - <link rel="stylesheet" type="text/css" href="../_static/agogo.css" /> - <link rel="stylesheet" type="text/css" href="../_static/kerb.css" /> - <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> - <script src="../_static/jquery.js"></script> - <script src="../_static/underscore.js"></script> - <script src="../_static/doctools.js"></script> - <link rel="author" title="About these documents" href="../about.html" /> - <link rel="index" title="Index" href="../genindex.html" /> - <link rel="search" title="Search" href="../search.html" /> - <link rel="copyright" title="Copyright" href="../copyright.html" /> - <link rel="next" title="PKINIT freshness tokens" href="freshness_token.html" /> - <link rel="prev" title="Replay cache file format" href="rcache_file_format.html" /> - </head><body> - <div class="header-wrapper"> - <div class="header"> - - - <h1><a href="../index.html">MIT Kerberos Documentation</a></h1> - - <div class="rel"> - - <a href="../index.html" title="Full Table of Contents" - accesskey="C">Contents</a> | - <a href="rcache_file_format.html" title="Replay cache file format" - accesskey="P">previous</a> | - <a href="freshness_token.html" title="PKINIT freshness tokens" - accesskey="N">next</a> | - <a href="../genindex.html" title="General Index" - accesskey="I">index</a> | - <a href="../search.html" title="Enter search criteria" - accesskey="S">Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__KDC cookie format">feedback</a> - </div> - </div> - </div> - - <div class="content-wrapper"> - <div class="content"> - <div class="document"> - - <div class="documentwrapper"> - <div class="bodywrapper"> - <div class="body" role="main"> - - <section id="kdc-cookie-format"> -<h1>KDC cookie format<a class="headerlink" href="#kdc-cookie-format" title="Permalink to this headline">¶</a></h1> -<p><span class="target" id="index-0"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc6113.html"><strong>RFC 6113</strong></a> section 5.2 specifies a pa-data type PA-FX-COOKIE, which -clients are required to reflect back to the KDC during -pre-authentication. The MIT krb5 KDC uses the following formats for -cookies.</p> -<section id="trivial-cookie-version-0"> -<h2>Trivial cookie (version 0)<a class="headerlink" href="#trivial-cookie-version-0" title="Permalink to this headline">¶</a></h2> -<p>If there is no pre-authentication mechanism state information to save, -a trivial cookie containing the value “MIT” is used. A trivial cookie -is needed to indicate that the conversation can continue.</p> -</section> -<section id="secure-cookie-version-1"> -<h2>Secure cookie (version 1)<a class="headerlink" href="#secure-cookie-version-1" title="Permalink to this headline">¶</a></h2> -<p>In release 1.14 and later, a secure cookie can be sent if there is any -mechanism state to save for the next request. A secure cookie -contains the concatenation of the following:</p> -<ul class="simple"> -<li><p>the four bytes “MIT1”</p></li> -<li><p>a four-byte big-endian kvno value</p></li> -<li><p>an <span class="target" id="index-1"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc3961.html"><strong>RFC 3961</strong></a> ciphertext</p></li> -</ul> -<p>The ciphertext is encrypted in the cookie key with key usage -number 513. The cookie key is derived from a key in the local krbtgt -principal entry for the realm (e.g. <code class="docutils literal notranslate"><span class="pre">krbtgt/KRBTEST.COM@KRBTEST.COM</span></code> -if the request is to the <code class="docutils literal notranslate"><span class="pre">KRBTEST.COM</span></code> realm). The first krbtgt key -for the indicated kvno value is combined with the client principal as -follows:</p> -<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">cookie</span><span class="o">-</span><span class="n">key</span> <span class="o"><-</span> <span class="n">random</span><span class="o">-</span><span class="n">to</span><span class="o">-</span><span class="n">key</span><span class="p">(</span><span class="n">PRF</span><span class="o">+</span><span class="p">(</span><span class="n">tgt</span><span class="o">-</span><span class="n">key</span><span class="p">,</span> <span class="s2">"COOKIE"</span> <span class="o">|</span> <span class="n">client</span><span class="o">-</span><span class="n">princ</span><span class="p">))</span> -</pre></div> -</div> -<p>where <strong>random-to-key</strong> is the <span class="target" id="index-2"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc3961.html"><strong>RFC 3961</strong></a> random-to-key operation for -the krbtgt key’s encryption type, <strong>PRF+</strong> is defined in <span class="target" id="index-3"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc6113.html"><strong>RFC 6113</strong></a>, -and <code class="docutils literal notranslate"><span class="pre">|</span></code> denotes concatenation. <em>client-princ</em> is the request client -principal name with realm, marshalled according to <span class="target" id="index-4"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc1964.html"><strong>RFC 1964</strong></a> section -2.1.1.</p> -<p>The plain text of the encrypted part of a cookie is the DER encoding -of the following ASN.1 type:</p> -<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">SecureCookie</span> <span class="p">:</span><span class="o">:=</span> <span class="n">SEQUENCE</span> <span class="p">{</span> - <span class="n">time</span> <span class="n">INTEGER</span><span class="p">,</span> - <span class="n">data</span> <span class="n">SEQUENCE</span> <span class="n">OF</span> <span class="n">PA</span><span class="o">-</span><span class="n">DATA</span><span class="p">,</span> - <span class="o">...</span> -<span class="p">}</span> -</pre></div> -</div> -<p>The time field represents the cookie creation time; for brevity, it is -encoded as an integer giving the POSIX timestamp rather than as an -ASN.1 GeneralizedTime value. The data field contains one element for -each pre-authentication type which requires saved state. For -mechanisms which have separate request and reply types, the request -type is used; this allows the KDC to determine whether a cookie is -relevant to a request by comparing the request pa-data types to the -cookie data types.</p> -</section> -<section id="spake-cookie-format-version-1"> -<h2>SPAKE cookie format (version 1)<a class="headerlink" href="#spake-cookie-format-version-1" title="Permalink to this headline">¶</a></h2> -<p>Inside the SecureCookie wrapper, a data value of type 151 contains -state for SPAKE pre-authentication. This data is the concatenation of -the following:</p> -<ul class="simple"> -<li><p>a two-byte big-endian version number with the value 1</p></li> -<li><p>a two-byte big-endian stage number</p></li> -<li><p>a four-byte big-endian group number</p></li> -<li><p>a four-byte big-endian length and data for the SPAKE value</p></li> -<li><p>a four-byte big-endian length and data for the transcript hash</p></li> -<li><p>zero or more second factor records, each consisting of: -- a four-byte big-endian second-factor type -- a four-byte big-endian length and data</p></li> -</ul> -<p>The stage value is 0 if the cookie was sent with a challenge message. -Otherwise it is 1 for the first encdata message sent by the KDC during -an exchange, 2 for the second, etc..</p> -<p>The group value indicates the group number used in the SPAKE challenge.</p> -<p>For a stage-0 cookie, the SPAKE value is the KDC private key, -represented in the scalar marshalling form of the group. For other -cookies, the SPAKE value is the SPAKE result K, represented in the -group element marshalling form.</p> -<p>For a stage-0 cookie, the transcript hash is the intermediate hash -after updating with the client support message (if one was sent) and -challenge. For other cookies it is the final hash.</p> -<p>For a stage-0 cookie, there may be any number of second-factor -records, including none; a second-factor type need not create a state -field if it does not need one, and no record is created for SF-NONE. -For other cookies, there must be exactly one second-factor record -corresponding to the factor type chosen by the client.</p> -</section> -</section> - - - <div class="clearer"></div> - </div> - </div> - </div> - </div> - <div class="sidebar"> - - <h2>On this page</h2> - <ul> -<li><a class="reference internal" href="#">KDC cookie format</a><ul> -<li><a class="reference internal" href="#trivial-cookie-version-0">Trivial cookie (version 0)</a></li> -<li><a class="reference internal" href="#secure-cookie-version-1">Secure cookie (version 1)</a></li> -<li><a class="reference internal" href="#spake-cookie-format-version-1">SPAKE cookie format (version 1)</a></li> -</ul> -</li> -</ul> - - <br/> - <h2>Table of contents</h2> - <ul class="current"> -<li class="toctree-l1"><a class="reference internal" href="../user/index.html">For users</a></li> -<li class="toctree-l1"><a class="reference internal" href="../admin/index.html">For administrators</a></li> -<li class="toctree-l1"><a class="reference internal" href="../appdev/index.html">For application developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../plugindev/index.html">For plugin module developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build/index.html">Building Kerberos V5</a></li> -<li class="toctree-l1"><a class="reference internal" href="../basic/index.html">Kerberos V5 concepts</a></li> -<li class="toctree-l1 current"><a class="reference internal" href="index.html">Protocols and file formats</a><ul class="current"> -<li class="toctree-l2"><a class="reference internal" href="ccache_file_format.html">Credential cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="keytab_file_format.html">Keytab file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="rcache_file_format.html">Replay cache file format</a></li> -<li class="toctree-l2 current"><a class="current reference internal" href="#">KDC cookie format</a></li> -<li class="toctree-l2"><a class="reference internal" href="freshness_token.html">PKINIT freshness tokens</a></li> -</ul> -</li> -<li class="toctree-l1"><a class="reference internal" href="../mitK5features.html">MIT Kerberos features</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build_this.html">How to build this documentation from the source</a></li> -<li class="toctree-l1"><a class="reference internal" href="../about.html">Contributing to the MIT Kerberos Documentation</a></li> -<li class="toctree-l1"><a class="reference internal" href="../resources.html">Resources</a></li> -</ul> - - <br/> - <h4><a href="../index.html">Full Table of Contents</a></h4> - <h4>Search</h4> - <form class="search" action="../search.html" method="get"> - <input type="text" name="q" size="18" /> - <input type="submit" value="Go" /> - <input type="hidden" name="check_keywords" value="yes" /> - <input type="hidden" name="area" value="default" /> - </form> - - </div> - <div class="clearer"></div> - </div> - </div> - - <div class="footer-wrapper"> - <div class="footer" > - <div class="right" ><i>Release: 1.21.3</i><br /> - © <a href="../copyright.html">Copyright</a> 1985-2024, MIT. - </div> - <div class="left"> - - <a href="../index.html" title="Full Table of Contents" - >Contents</a> | - <a href="rcache_file_format.html" title="Replay cache file format" - >previous</a> | - <a href="freshness_token.html" title="PKINIT freshness tokens" - >next</a> | - <a href="../genindex.html" title="General Index" - >index</a> | - <a href="../search.html" title="Enter search criteria" - >Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__KDC cookie format">feedback</a> - </div> - </div> - </div> - - </body> -</html>
\ No newline at end of file diff --git a/crypto/krb5/doc/html/formats/freshness_token.html b/crypto/krb5/doc/html/formats/freshness_token.html deleted file mode 100644 index dda48da4c2e9..000000000000 --- a/crypto/krb5/doc/html/formats/freshness_token.html +++ /dev/null @@ -1,149 +0,0 @@ - -<!DOCTYPE html> - -<html> - <head> - <meta charset="utf-8" /> - <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> - - <title>PKINIT freshness tokens — MIT Kerberos Documentation</title> - <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> - <link rel="stylesheet" type="text/css" href="../_static/agogo.css" /> - <link rel="stylesheet" type="text/css" href="../_static/kerb.css" /> - <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> - <script src="../_static/jquery.js"></script> - <script src="../_static/underscore.js"></script> - <script src="../_static/doctools.js"></script> - <link rel="author" title="About these documents" href="../about.html" /> - <link rel="index" title="Index" href="../genindex.html" /> - <link rel="search" title="Search" href="../search.html" /> - <link rel="copyright" title="Copyright" href="../copyright.html" /> - <link rel="next" title="MIT Kerberos features" href="../mitK5features.html" /> - <link rel="prev" title="KDC cookie format" href="cookie.html" /> - </head><body> - <div class="header-wrapper"> - <div class="header"> - - - <h1><a href="../index.html">MIT Kerberos Documentation</a></h1> - - <div class="rel"> - - <a href="../index.html" title="Full Table of Contents" - accesskey="C">Contents</a> | - <a href="cookie.html" title="KDC cookie format" - accesskey="P">previous</a> | - <a href="../mitK5features.html" title="MIT Kerberos features" - accesskey="N">next</a> | - <a href="../genindex.html" title="General Index" - accesskey="I">index</a> | - <a href="../search.html" title="Enter search criteria" - accesskey="S">Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__PKINIT freshness tokens">feedback</a> - </div> - </div> - </div> - - <div class="content-wrapper"> - <div class="content"> - <div class="document"> - - <div class="documentwrapper"> - <div class="bodywrapper"> - <div class="body" role="main"> - - <section id="pkinit-freshness-tokens"> -<h1>PKINIT freshness tokens<a class="headerlink" href="#pkinit-freshness-tokens" title="Permalink to this headline">¶</a></h1> -<p><span class="target" id="index-0"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc8070.html"><strong>RFC 8070</strong></a> specifies a pa-data type PA_AS_FRESHNESS, which clients -should reflect within signed PKINIT data to prove recent access to the -client certificate private key. The contents of a freshness token are -left to the KDC implementation. The MIT krb5 KDC uses the following -format for freshness tokens (starting in release 1.17):</p> -<ul class="simple"> -<li><p>a four-byte big-endian POSIX timestamp</p></li> -<li><p>a four-byte big-endian key version number</p></li> -<li><p>an <span class="target" id="index-1"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc3961.html"><strong>RFC 3961</strong></a> checksum, with no ASN.1 wrapper</p></li> -</ul> -<p>The checksum is computed using the first key in the local krbtgt -principal entry for the realm (e.g. <code class="docutils literal notranslate"><span class="pre">krbtgt/KRBTEST.COM@KRBTEST.COM</span></code> -if the request is to the <code class="docutils literal notranslate"><span class="pre">KRBTEST.COM</span></code> realm) of the indicated key -version. The checksum type must be the mandatory checksum type for -the encryption type of the krbtgt key. The key usage value for the -checksum is 514.</p> -</section> - - - <div class="clearer"></div> - </div> - </div> - </div> - </div> - <div class="sidebar"> - - <h2>On this page</h2> - <ul> -<li><a class="reference internal" href="#">PKINIT freshness tokens</a></li> -</ul> - - <br/> - <h2>Table of contents</h2> - <ul class="current"> -<li class="toctree-l1"><a class="reference internal" href="../user/index.html">For users</a></li> -<li class="toctree-l1"><a class="reference internal" href="../admin/index.html">For administrators</a></li> -<li class="toctree-l1"><a class="reference internal" href="../appdev/index.html">For application developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../plugindev/index.html">For plugin module developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build/index.html">Building Kerberos V5</a></li> -<li class="toctree-l1"><a class="reference internal" href="../basic/index.html">Kerberos V5 concepts</a></li> -<li class="toctree-l1 current"><a class="reference internal" href="index.html">Protocols and file formats</a><ul class="current"> -<li class="toctree-l2"><a class="reference internal" href="ccache_file_format.html">Credential cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="keytab_file_format.html">Keytab file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="rcache_file_format.html">Replay cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="cookie.html">KDC cookie format</a></li> -<li class="toctree-l2 current"><a class="current reference internal" href="#">PKINIT freshness tokens</a></li> -</ul> -</li> -<li class="toctree-l1"><a class="reference internal" href="../mitK5features.html">MIT Kerberos features</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build_this.html">How to build this documentation from the source</a></li> -<li class="toctree-l1"><a class="reference internal" href="../about.html">Contributing to the MIT Kerberos Documentation</a></li> -<li class="toctree-l1"><a class="reference internal" href="../resources.html">Resources</a></li> -</ul> - - <br/> - <h4><a href="../index.html">Full Table of Contents</a></h4> - <h4>Search</h4> - <form class="search" action="../search.html" method="get"> - <input type="text" name="q" size="18" /> - <input type="submit" value="Go" /> - <input type="hidden" name="check_keywords" value="yes" /> - <input type="hidden" name="area" value="default" /> - </form> - - </div> - <div class="clearer"></div> - </div> - </div> - - <div class="footer-wrapper"> - <div class="footer" > - <div class="right" ><i>Release: 1.21.3</i><br /> - © <a href="../copyright.html">Copyright</a> 1985-2024, MIT. - </div> - <div class="left"> - - <a href="../index.html" title="Full Table of Contents" - >Contents</a> | - <a href="cookie.html" title="KDC cookie format" - >previous</a> | - <a href="../mitK5features.html" title="MIT Kerberos features" - >next</a> | - <a href="../genindex.html" title="General Index" - >index</a> | - <a href="../search.html" title="Enter search criteria" - >Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__PKINIT freshness tokens">feedback</a> - </div> - </div> - </div> - - </body> -</html>
\ No newline at end of file diff --git a/crypto/krb5/doc/html/formats/index.html b/crypto/krb5/doc/html/formats/index.html deleted file mode 100644 index ac18e3217ce6..000000000000 --- a/crypto/krb5/doc/html/formats/index.html +++ /dev/null @@ -1,142 +0,0 @@ - -<!DOCTYPE html> - -<html> - <head> - <meta charset="utf-8" /> - <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> - - <title>Protocols and file formats — MIT Kerberos Documentation</title> - <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> - <link rel="stylesheet" type="text/css" href="../_static/agogo.css" /> - <link rel="stylesheet" type="text/css" href="../_static/kerb.css" /> - <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> - <script src="../_static/jquery.js"></script> - <script src="../_static/underscore.js"></script> - <script src="../_static/doctools.js"></script> - 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- - <div class="clearer"></div> - </div> - </div> - </div> - </div> - <div class="sidebar"> - - <h2>On this page</h2> - <ul> -<li><a class="reference internal" href="#">Protocols and file formats</a></li> -</ul> - - <br/> - <h2>Table of contents</h2> - <ul class="current"> -<li class="toctree-l1"><a class="reference internal" href="../user/index.html">For users</a></li> -<li class="toctree-l1"><a class="reference internal" href="../admin/index.html">For administrators</a></li> -<li class="toctree-l1"><a class="reference internal" href="../appdev/index.html">For application developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../plugindev/index.html">For plugin module developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build/index.html">Building Kerberos V5</a></li> -<li class="toctree-l1"><a class="reference internal" href="../basic/index.html">Kerberos V5 concepts</a></li> -<li class="toctree-l1 current"><a class="current reference internal" href="#">Protocols and file formats</a><ul> -<li class="toctree-l2"><a class="reference internal" href="ccache_file_format.html">Credential cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="keytab_file_format.html">Keytab file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="rcache_file_format.html">Replay cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="cookie.html">KDC cookie format</a></li> -<li class="toctree-l2"><a class="reference internal" href="freshness_token.html">PKINIT freshness tokens</a></li> -</ul> -</li> -<li class="toctree-l1"><a class="reference internal" href="../mitK5features.html">MIT Kerberos features</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build_this.html">How to build this documentation from the source</a></li> -<li class="toctree-l1"><a class="reference internal" href="../about.html">Contributing to the MIT Kerberos Documentation</a></li> -<li class="toctree-l1"><a class="reference internal" href="../resources.html">Resources</a></li> -</ul> - 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\ No newline at end of file diff --git a/crypto/krb5/doc/html/formats/keytab_file_format.html b/crypto/krb5/doc/html/formats/keytab_file_format.html deleted file mode 100644 index 69572421641b..000000000000 --- a/crypto/krb5/doc/html/formats/keytab_file_format.html +++ /dev/null @@ -1,179 +0,0 @@ - -<!DOCTYPE html> - -<html> - <head> - <meta charset="utf-8" /> - <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> - - <title>Keytab file format — MIT Kerberos Documentation</title> - <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> - <link rel="stylesheet" type="text/css" href="../_static/agogo.css" /> - <link rel="stylesheet" type="text/css" href="../_static/kerb.css" /> - <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> - <script src="../_static/jquery.js"></script> - <script src="../_static/underscore.js"></script> - <script src="../_static/doctools.js"></script> - <link rel="author" title="About these documents" href="../about.html" /> - <link rel="index" title="Index" href="../genindex.html" /> - <link rel="search" title="Search" href="../search.html" /> - <link rel="copyright" title="Copyright" href="../copyright.html" /> - <link rel="next" title="Replay cache file format" href="rcache_file_format.html" /> - <link rel="prev" title="Credential cache file format" href="ccache_file_format.html" /> - </head><body> - <div class="header-wrapper"> - <div class="header"> - - - <h1><a href="../index.html">MIT Kerberos Documentation</a></h1> - - <div class="rel"> - - <a href="../index.html" title="Full Table of Contents" - accesskey="C">Contents</a> | - <a href="ccache_file_format.html" title="Credential cache file format" - accesskey="P">previous</a> | - <a href="rcache_file_format.html" title="Replay cache file format" - accesskey="N">next</a> | - <a href="../genindex.html" title="General Index" - accesskey="I">index</a> | - <a href="../search.html" title="Enter search criteria" - accesskey="S">Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__Keytab file format">feedback</a> - </div> - </div> - </div> - - <div class="content-wrapper"> - <div class="content"> - <div class="document"> - - <div class="documentwrapper"> - <div class="bodywrapper"> - <div class="body" role="main"> - - <section id="keytab-file-format"> -<span id="id1"></span><h1>Keytab file format<a class="headerlink" href="#keytab-file-format" title="Permalink to this headline">¶</a></h1> -<p>There are two versions of the file format used by the FILE keytab -type. The first byte of the file always has the value 5, and the -value of the second byte contains the version number (1 or 2). -Version 1 of the file format uses native byte order for integer -representations. Version 2 always uses big-endian byte order.</p> -<p>After the two-byte version indicator, the file contains a sequence of -signed 32-bit record lengths followed by key records or holes. A -positive record length indicates a valid key entry whose size is equal -to or less than the record length. A negative length indicates a -zero-filled hole whose size is the inverse of the length. A length of -0 indicates the end of the file.</p> -<section id="key-entry-format"> -<h2>Key entry format<a class="headerlink" href="#key-entry-format" title="Permalink to this headline">¶</a></h2> -<p>A key entry may be smaller in size than the record length which -precedes it, because it may have replaced a hole which is larger than -the key entry. Key entries use the following informal grammar:</p> -<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">entry</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">principal</span> - <span class="n">timestamp</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">key</span> <span class="n">version</span> <span class="p">(</span><span class="mi">8</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">enctype</span> <span class="p">(</span><span class="mi">16</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">key</span> <span class="n">length</span> <span class="p">(</span><span class="mi">16</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">key</span> <span class="n">contents</span> - <span class="n">key</span> <span class="n">version</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> <span class="p">[</span><span class="ow">in</span> <span class="n">release</span> <span class="mf">1.14</span> <span class="ow">and</span> <span class="n">later</span><span class="p">]</span> - -<span class="n">principal</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">count</span> <span class="n">of</span> <span class="n">components</span> <span class="p">(</span><span class="mi">16</span> <span class="n">bits</span><span class="p">)</span> <span class="p">[</span><span class="n">includes</span> <span class="n">realm</span> <span class="ow">in</span> <span class="n">version</span> <span class="mi">1</span><span class="p">]</span> - <span class="n">realm</span> <span class="p">(</span><span class="n">data</span><span class="p">)</span> - <span class="n">component1</span> <span class="p">(</span><span class="n">data</span><span class="p">)</span> - <span class="n">component2</span> <span class="p">(</span><span class="n">data</span><span class="p">)</span> - <span class="o">...</span> - <span class="n">name</span> <span class="nb">type</span> <span class="p">(</span><span class="mi">32</span> <span class="n">bits</span><span class="p">)</span> <span class="p">[</span><span class="n">omitted</span> <span class="ow">in</span> <span class="n">version</span> <span class="mi">1</span><span class="p">]</span> - -<span class="n">data</span> <span class="p">:</span><span class="o">:=</span> - <span class="n">length</span> <span class="p">(</span><span class="mi">16</span> <span class="n">bits</span><span class="p">)</span> - <span class="n">value</span> <span class="p">(</span><span class="n">length</span> <span class="nb">bytes</span><span class="p">)</span> -</pre></div> -</div> -<p>The 32-bit key version overrides the 8-bit key version. To determine -if it is present, the implementation must check that at least 4 bytes -remain in the record after the other fields are read, and that the -value of the 32-bit integer contained in those bytes is non-zero.</p> -</section> -</section> - - - <div class="clearer"></div> - </div> - </div> - </div> - </div> - <div class="sidebar"> - - <h2>On this page</h2> - <ul> -<li><a class="reference internal" href="#">Keytab file format</a><ul> -<li><a class="reference internal" href="#key-entry-format">Key entry format</a></li> -</ul> -</li> -</ul> - - <br/> - <h2>Table of contents</h2> - <ul class="current"> -<li class="toctree-l1"><a class="reference internal" href="../user/index.html">For users</a></li> -<li class="toctree-l1"><a class="reference internal" href="../admin/index.html">For administrators</a></li> -<li class="toctree-l1"><a class="reference internal" href="../appdev/index.html">For application developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../plugindev/index.html">For plugin module developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build/index.html">Building Kerberos V5</a></li> -<li class="toctree-l1"><a class="reference internal" href="../basic/index.html">Kerberos V5 concepts</a></li> -<li class="toctree-l1 current"><a class="reference internal" href="index.html">Protocols and file formats</a><ul class="current"> -<li class="toctree-l2"><a class="reference internal" href="ccache_file_format.html">Credential cache file format</a></li> -<li class="toctree-l2 current"><a class="current reference internal" href="#">Keytab file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="rcache_file_format.html">Replay cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="cookie.html">KDC cookie format</a></li> -<li class="toctree-l2"><a class="reference internal" href="freshness_token.html">PKINIT freshness tokens</a></li> -</ul> -</li> -<li class="toctree-l1"><a class="reference internal" href="../mitK5features.html">MIT Kerberos features</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build_this.html">How to build this documentation from the source</a></li> -<li class="toctree-l1"><a class="reference internal" href="../about.html">Contributing to the MIT Kerberos Documentation</a></li> -<li class="toctree-l1"><a class="reference internal" href="../resources.html">Resources</a></li> -</ul> - - <br/> - <h4><a href="../index.html">Full Table of Contents</a></h4> - <h4>Search</h4> - <form class="search" action="../search.html" method="get"> - <input type="text" name="q" size="18" /> - <input type="submit" value="Go" /> - <input type="hidden" name="check_keywords" value="yes" /> - <input type="hidden" name="area" value="default" /> - </form> - - </div> - <div class="clearer"></div> - </div> - </div> - - <div class="footer-wrapper"> - <div class="footer" > - <div class="right" ><i>Release: 1.21.3</i><br /> - © <a href="../copyright.html">Copyright</a> 1985-2024, MIT. - </div> - <div class="left"> - - <a href="../index.html" title="Full Table of Contents" - >Contents</a> | - <a href="ccache_file_format.html" title="Credential cache file format" - >previous</a> | - <a href="rcache_file_format.html" title="Replay cache file format" - >next</a> | - <a href="../genindex.html" title="General Index" - >index</a> | - <a href="../search.html" title="Enter search criteria" - >Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__Keytab file format">feedback</a> - </div> - </div> - </div> - - </body> -</html>
\ No newline at end of file diff --git a/crypto/krb5/doc/html/formats/rcache_file_format.html b/crypto/krb5/doc/html/formats/rcache_file_format.html deleted file mode 100644 index bacb4db800c3..000000000000 --- a/crypto/krb5/doc/html/formats/rcache_file_format.html +++ /dev/null @@ -1,173 +0,0 @@ - -<!DOCTYPE html> - -<html> - <head> - <meta charset="utf-8" /> - <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> - - <title>Replay cache file format — MIT Kerberos Documentation</title> - <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> - <link rel="stylesheet" type="text/css" href="../_static/agogo.css" /> - <link rel="stylesheet" type="text/css" href="../_static/kerb.css" /> - <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> - <script src="../_static/jquery.js"></script> - <script src="../_static/underscore.js"></script> - <script src="../_static/doctools.js"></script> - <link rel="author" title="About these documents" href="../about.html" /> - <link rel="index" title="Index" href="../genindex.html" /> - <link rel="search" title="Search" href="../search.html" /> - <link rel="copyright" title="Copyright" href="../copyright.html" /> - <link rel="next" title="KDC cookie format" href="cookie.html" /> - <link rel="prev" title="Keytab file format" href="keytab_file_format.html" /> - </head><body> - <div class="header-wrapper"> - <div class="header"> - - - <h1><a href="../index.html">MIT Kerberos Documentation</a></h1> - - <div class="rel"> - - <a href="../index.html" title="Full Table of Contents" - accesskey="C">Contents</a> | - <a href="keytab_file_format.html" title="Keytab file format" - accesskey="P">previous</a> | - <a href="cookie.html" title="KDC cookie format" - accesskey="N">next</a> | - <a href="../genindex.html" title="General Index" - accesskey="I">index</a> | - <a href="../search.html" title="Enter search criteria" - accesskey="S">Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__Replay cache file format">feedback</a> - </div> - </div> - </div> - - <div class="content-wrapper"> - <div class="content"> - <div class="document"> - - <div class="documentwrapper"> - <div class="bodywrapper"> - <div class="body" role="main"> - - <section id="replay-cache-file-format"> -<h1>Replay cache file format<a class="headerlink" href="#replay-cache-file-format" title="Permalink to this headline">¶</a></h1> -<p>This section documents the second version of the replay cache file -format, used by the “file2” replay cache type (new in release 1.18). -The first version of the file replay cache format is not documented.</p> -<p>All accesses to the replay cache file take place under an exclusive -POSIX or Windows file lock, obtained when the file is opened and -released when it is closed. Replay cache files are automatically -created when first accessed.</p> -<p>For each store operation, a tag is derived from the checksum part of -the <span class="target" id="index-0"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc3961.html"><strong>RFC 3961</strong></a> ciphertext of the authenticator. The checksum is -coerced to a fixed length of 12 bytes, either through truncation or -right-padding with zero bytes. A four-byte timestamp is appended to -the tag to produce a total record length of 16 bytes.</p> -<p>Bytes 0 through 15 of the file contain a hash seed for the SipHash-2-4 -algorithm (<a class="reference external" href="https://131002.net/siphash/siphash.pdf">siphash</a>); this field is populated with random bytes when -the file is first created. All remaining bytes are divided into a -series of expanding hash tables:</p> -<ul class="simple"> -<li><p>Bytes 16-16383: hash table 1 (1023 slots)</p></li> -<li><p>Bytes 16384-49151: hash table 2 (2048 slots)</p></li> -<li><p>Bytes 49152-114687: hash table 3 (4096 slots)</p></li> -<li><p>…</p></li> -</ul> -<p>Only some hash tables will be present in the file at any specific -time, and the final table may be only partially filled. Replay cache -files may be sparse if the filesystem supports it.</p> -<p>For each table present in the file, the tag is hashed with SipHash-2-4 -using the seed recorded in the file. The first byte of the seed is -incremented by one (modulo 256) for each table after the first. The -resulting hash value is taken modulo one less than the table size -(1022 for the first hash table, 2047 for the second) to produce the -index. The record may be found at the slot given by the index or at -the next slot.</p> -<p>All candidate locations for the record must be searched until a slot -is found with a timestamp of zero (indicating a slot which has never -been written to) or an offset is reached at or beyond the end of the -file. Any candidate location with a timestamp value of zero, with a -timestamp value less than the current time minus clockskew, or at or -beyond the end of the file is available for writing. When all -candidate locations have been searched without finding a match, the -new entry is written to the earliest candidate available for writing.</p> -</section> - - - <div class="clearer"></div> - </div> - </div> - </div> - </div> - <div class="sidebar"> - - <h2>On this page</h2> - <ul> -<li><a class="reference internal" href="#">Replay cache file format</a></li> -</ul> - - <br/> - <h2>Table of contents</h2> - <ul class="current"> -<li class="toctree-l1"><a class="reference internal" href="../user/index.html">For users</a></li> -<li class="toctree-l1"><a class="reference internal" href="../admin/index.html">For administrators</a></li> -<li class="toctree-l1"><a class="reference internal" href="../appdev/index.html">For application developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../plugindev/index.html">For plugin module developers</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build/index.html">Building Kerberos V5</a></li> -<li class="toctree-l1"><a class="reference internal" href="../basic/index.html">Kerberos V5 concepts</a></li> -<li class="toctree-l1 current"><a class="reference internal" href="index.html">Protocols and file formats</a><ul class="current"> -<li class="toctree-l2"><a class="reference internal" href="ccache_file_format.html">Credential cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="keytab_file_format.html">Keytab file format</a></li> -<li class="toctree-l2 current"><a class="current reference internal" href="#">Replay cache file format</a></li> -<li class="toctree-l2"><a class="reference internal" href="cookie.html">KDC cookie format</a></li> -<li class="toctree-l2"><a class="reference internal" href="freshness_token.html">PKINIT freshness tokens</a></li> -</ul> -</li> -<li class="toctree-l1"><a class="reference internal" href="../mitK5features.html">MIT Kerberos features</a></li> -<li class="toctree-l1"><a class="reference internal" href="../build_this.html">How to build this documentation from the source</a></li> -<li class="toctree-l1"><a class="reference internal" href="../about.html">Contributing to the MIT Kerberos Documentation</a></li> -<li class="toctree-l1"><a class="reference internal" href="../resources.html">Resources</a></li> -</ul> - - <br/> - <h4><a href="../index.html">Full Table of Contents</a></h4> - <h4>Search</h4> - <form class="search" action="../search.html" method="get"> - <input type="text" name="q" size="18" /> - <input type="submit" value="Go" /> - <input type="hidden" name="check_keywords" value="yes" /> - <input type="hidden" name="area" value="default" /> - </form> - - </div> - <div class="clearer"></div> - </div> - </div> - - <div class="footer-wrapper"> - <div class="footer" > - <div class="right" ><i>Release: 1.21.3</i><br /> - © <a href="../copyright.html">Copyright</a> 1985-2024, MIT. - </div> - <div class="left"> - - <a href="../index.html" title="Full Table of Contents" - >Contents</a> | - <a href="keytab_file_format.html" title="Keytab file format" - >previous</a> | - <a href="cookie.html" title="KDC cookie format" - >next</a> | - <a href="../genindex.html" title="General Index" - >index</a> | - <a href="../search.html" title="Enter search criteria" - >Search</a> | - <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__Replay cache file format">feedback</a> - </div> - </div> - </div> - - </body> -</html>
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