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Diffstat (limited to 'libjava/javax/crypto/spec/RC2ParameterSpec.java')
-rw-r--r-- | libjava/javax/crypto/spec/RC2ParameterSpec.java | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/libjava/javax/crypto/spec/RC2ParameterSpec.java b/libjava/javax/crypto/spec/RC2ParameterSpec.java deleted file mode 100644 index 33155b2b3e8..00000000000 --- a/libjava/javax/crypto/spec/RC2ParameterSpec.java +++ /dev/null @@ -1,166 +0,0 @@ -/* RC2ParameterSpec.java -- Wrapper for RC2 parameters. - Copyright (C) 2004 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath 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 for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package javax.crypto.spec; - -import java.security.spec.AlgorithmParameterSpec; - -/** - * A wrapper for parameters for the <a - * href="http://www.rsasecurity.com/rsalabs/faq/3-6-2.html">RC2</a> - * block cipher ("RC" means either "Rivest Cipher" or "Ron's Code", - * depending upon who you ask and when). - * - * @author Casey Marshall (csm@gnu.org) - * @since 1.4 - */ -public class RC2ParameterSpec implements AlgorithmParameterSpec -{ - - // Constants and fields. - // ------------------------------------------------------------------------ - - /** The length of an RC2 IV, in bytes. */ - private static final int RC2_IV_LENGTH = 8; - - /** The effective key length, in bits. */ - private int effectiveKeyBits; - - /** The initialization vector. */ - private byte[] iv; - - // Constructors. - // ------------------------------------------------------------------------ - - /** - * Create RC2 parameters without an IV. - * - * @param effectiveKeyBits The number of effective key bits. - */ - public RC2ParameterSpec(int effectiveKeyBits) - { - this.effectiveKeyBits = effectiveKeyBits; - } - - /** - * Create RC2 parameters with an IV. - * - * @param effectiveKeyBits The number of effective key bits. - * @param iv The IV; the first eight bytes of this array - * are used. - */ - public RC2ParameterSpec(int effectiveKeyBits, byte[] iv) - { - this(effectiveKeyBits, iv, 0); - } - - /** - * Create RC2 parameters with an IV. - * - * @param effectiveKeyBits The number of effective key bits. - * @param iv The IV; the first eight bytes of this array - * after <code>offset</code> are used. - * @param offset From whence to start in the array. - */ - public RC2ParameterSpec(int effectiveKeyBits, byte[] iv, int offset) - { - if (iv.length - offset < RC2_IV_LENGTH) - { - throw new IllegalArgumentException("IV too short"); - } - this.effectiveKeyBits = effectiveKeyBits; - this.iv = new byte[RC2_IV_LENGTH]; - System.arraycopy(iv, offset, this.iv, 0, RC2_IV_LENGTH); - } - - // Instance methods. - // ------------------------------------------------------------------------ - - /** - * Get the number of effective key bits. - * - * @return The numer of effective key bits. - */ - public int getEffectiveKeyBits() - { - return effectiveKeyBits; - } - - /** - * Return the initialization vector, or <code>null</code> if none was - * specified. - * - * @return The IV, or null. - */ - public byte[] getIV() - { - return iv; - } - - public boolean equals(Object o) - { - if (this == o) return true; - byte[] oiv = ((RC2ParameterSpec) o).getIV(); - if (iv != oiv) - { - if (iv == null || oiv == null) return false; - if (iv.length != oiv.length) return false; - for (int i = 0; i < iv.length; i++) - { - if (iv[i] != oiv[i]) - { - return false; - } - } - } - return effectiveKeyBits == ((RC2ParameterSpec) o).getEffectiveKeyBits(); - } - - public int hashCode() - { - int code = effectiveKeyBits; - if (iv != null) - { - for (int i = 0; i < RC2_IV_LENGTH; i++) - { - code += iv[i]; - } - } - return code; - } -} |