<!--
Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

This code is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 only, as
published by the Free Software Foundation.  Oracle designates this
particular file as subject to the "Classpath" exception as provided
by Oracle in the LICENSE file that accompanied this code.

This code is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
version 2 for more details (a copy is included in the LICENSE file that
accompanied this code).

You should have received a copy of the GNU General Public License version
2 along with this work; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
CA 95054 USA or visit www.sun.com if you need additional information or
have any questions.
-->

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>

<body bgcolor="white">

Provides the classes and interfaces for cryptographic operations. The
cryptographic operations defined in this package include encryption,
key generation and key agreement, and Message Authentication Code
(MAC) generation.

<p>Support for encryption includes symmetric, asymmetric, block, and
stream ciphers. This package also supports secure streams and sealed
objects.

<p>Many of the classes provided in this package are provider-based.  The
class itself defines a programming interface to which applications may
write.  The implementations themselves may then be written by
independent third-party vendors and plugged in seamlessly as needed.
Therefore application developers may take advantage of any number of
provider-based implementations without having to add or rewrite code.

<h2>Related Documentation</h2>

For further documentation, please see:
<ul>
  <li>
    <a href=
      "{@docRoot}/../technotes/guides/security/crypto/CryptoSpec.html">
      <b>Java<FONT SIZE=-2><SUP>TM</SUP></FONT>
       Cryptography Architecture API Specification and Reference
      </b></a></li>
  <li>
    <a href=
      "{@docRoot}/../technotes/guides/security/crypto/HowToImplAProvider.html">
      <b>How to Implement a Provider for the
      Java<FONT SIZE=-2><SUP>TM</SUP></FONT> Cryptography Architecture
      </b></a></li>
</ul>

@since 1.4
</body>
</html>