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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [classpath/] [javax/] [crypto/] [interfaces/] [PBEKey.java] - Blame information for rev 772

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1 772 jeremybenn
/* PBEKey.java -- A key derived from a password.
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   Copyright (C) 2004  Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING.  If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library.  Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module.  An independent module is a module which is not derived from
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or based on this library.  If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so.  If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.crypto.interfaces;
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import javax.crypto.SecretKey;
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/**
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 * Interface to a password-derived key for password-based encryption
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 * (PBE). Applications working with a {@link javax.crypto.SecretKey}
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 * that is known to be a password-based key can safely cast such keys to
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 * this interface.
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 *
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 * @author Casey Marshall (csm@gnu.org)
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 * @since 1.4
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 */
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public interface PBEKey extends SecretKey
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{
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  /** Compatible with JDK1.4. */
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  long serialVersionUID = -1430015993304333921L;
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  /**
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   * Retruns the iteration count, or 0 if not specified.
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   *
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   * @return The iteration count.
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   */
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  int getIterationCount();
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  /**
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   * Returns a copy of the password as a character array. It is the
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   * caller's responsibility to zero-out the password when it is no
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   * longer in use.
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   *
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   * <p>Although it is not specified in the documentation,
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   * implementations should not copy or clone the password array, but
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   * rather return the reference to the array itself, so the caller has
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   * the ability to erase the password.
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   *
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   * @return The password.
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   */
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  char[] getPassword();
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  /**
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   * Returns a copy of the salt. It is the caller's responsibility to
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   * zero-out the salt when it is no longer in use.
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   *
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   * <p>Although it is not specified in the documentation,
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   * implementations should not copy or clone the salt array, but
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   * rather return the reference to the array itself, so the caller has
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   * the ability to erase the salt.
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   *
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   * @return The salt.
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   */
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  byte[] getSalt();
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}

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