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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 85ffdae3b8fc..000000000000 --- a/crypto/krb5/doc/html/formats/rcache_file_format.html +++ /dev/null @@ -1,172 +0,0 @@ -<!DOCTYPE html> - -<html lang="en" data-content_root="../"> - <head> - <meta charset="utf-8" /> - <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" /> - - <title>Replay cache file format — MIT Kerberos Documentation</title> - <link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=fa44fd50" /> - <link rel="stylesheet" type="text/css" href="../_static/agogo.css?v=879f3c71" /> - <link rel="stylesheet" type="text/css" href="../_static/kerb.css?v=6a0b3979" /> - <script src="../_static/documentation_options.js?v=236fef3b"></script> - <script src="../_static/doctools.js?v=888ff710"></script> - <script src="../_static/sphinx_highlight.js?v=dc90522c"></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="Link to this heading">¶</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://datatracker.ietf.org/doc/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> -<li class="toctree-l2"><a class="reference internal" href="database_formats.html">Kerberos Database (KDB) Formats</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: 1.22-final</i><br /> - © <a href="../copyright.html">Copyright</a> 1985-2025, 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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