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diff --git a/contrib/bind9/doc/arm/man.isc-hmac-fixup.html b/contrib/bind9/doc/arm/man.isc-hmac-fixup.html new file mode 100644 index 0000000..bff6e91 --- /dev/null +++ b/contrib/bind9/doc/arm/man.isc-hmac-fixup.html @@ -0,0 +1,122 @@ +<!-- + - Copyright (C) 2004-2011 Internet Systems Consortium, Inc. ("ISC") + - Copyright (C) 2000-2003 Internet Software Consortium. + - + - Permission to use, copy, modify, and/or distribute this software for any + - purpose with or without fee is hereby granted, provided that the above + - copyright notice and this permission notice appear in all copies. + - + - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + - AND FITNESS. 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However, the fix may + cause incompatibility between older and newer versions of + BIND, when using long keys. <span><strong class="command">isc-hmac-fixup</strong></span> + modifies those keys to restore compatibility. + </p> +<p> + To modify a key, run <span><strong class="command">isc-hmac-fixup</strong></span> and + specify the key's algorithm and secret on the command line. If the + secret is longer than the digest length of the algorithm (64 bytes + for SHA1 through SHA256, or 128 bytes for SHA384 and SHA512), then a + new secret will be generated consisting of a hash digest of the old + secret. (If the secret did not require conversion, then it will be + printed without modification.) + </p> +</div> +<div class="refsect1" lang="en"> +<a name="id2650584"></a><h2>SECURITY CONSIDERATIONS</h2> +<p> + Secrets that have been converted by <span><strong class="command">isc-hmac-fixup</strong></span> + are shortened, but as this is how the HMAC protocol works in + operation anyway, it does not affect security. RFC 2104 notes, + "Keys longer than [the digest length] are acceptable but the + extra length would not significantly increase the function + strength." + </p> +</div> +<div class="refsect1" lang="en"> +<a name="id2650600"></a><h2>SEE ALSO</h2> +<p> + <em class="citetitle">BIND 9 Administrator Reference Manual</em>, + <em class="citetitle">RFC 2104</em>. + </p> +</div> +<div class="refsect1" lang="en"> +<a name="id2650617"></a><h2>AUTHOR</h2> +<p><span class="corpauthor">Internet Systems Consortium</span> + </p> +</div> +</div> +<div class="navfooter"> +<hr> +<table width="100%" summary="Navigation footer"> +<tr> +<td width="40%" align="left"> +<a accesskey="p" href="man.genrandom.html">Prev</a> </td> +<td width="20%" align="center"><a accesskey="u" href="Bv9ARM.ch10.html">Up</a></td> +<td width="40%" align="right"> <a accesskey="n" href="man.nsec3hash.html">Next</a> +</td> +</tr> +<tr> +<td width="40%" align="left" valign="top"> +<span class="application">genrandom</span> </td> +<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td> +<td width="40%" align="right" valign="top"> <span class="application">nsec3hash</span> +</td> +</tr> +</table> +</div> +</body> +</html> |
