pkcs8encodedkeyspec.java

来自「This is a resource based on j2me embedde」· Java 代码 · 共 96 行

/*
 * @(#)PKCS8EncodedKeySpec.java	1.21 06/10/10
 *
 * Copyright  1990-2008 Sun Microsystems, Inc. All Rights Reserved.  
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER  
 *   
 * This program 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.   
 *   
 * This program 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 at /legal/license.txt).   
 *   
 * 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 or visit www.sun.com if you need additional  
 * information or have any questions. 
 *
 */

package java.security.spec;

/**
 * This class represents the ASN.1 encoding of a private key,
 * encoded according to the ASN.1 type <code>PrivateKeyInfo</code>.
 * The <code>PrivateKeyInfo</code> syntax is defined in the PKCS#8 standard
 * as follows:
 *
 * <pre>
 * PrivateKeyInfo ::= SEQUENCE {
 *   version Version,
 *   privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
 *   privateKey PrivateKey,
 *   attributes [0] IMPLICIT Attributes OPTIONAL }
 *
 * Version ::= INTEGER
 *
 * PrivateKeyAlgorithmIdentifier ::= AlgorithmIdentifier
 *
 * PrivateKey ::= OCTET STRING
 *
 * Attributes ::= SET OF Attribute
 * </pre>
 *
 * @author Jan Luehe
 *
 * @version 1.14, 02/02/00
 *
 * @see java.security.Key
 * @see java.security.KeyFactory
 * @see KeySpec
 * @see EncodedKeySpec
 * @see X509EncodedKeySpec
 *
 * @since 1.2
 */

public class PKCS8EncodedKeySpec extends EncodedKeySpec {

    /**
     * Creates a new PKCS8EncodedKeySpec with the given encoded key.
     *
     * @param encodedKey the key, which is assumed to be
     * encoded according to the PKCS #8 standard.
     */
    public PKCS8EncodedKeySpec(byte[] encodedKey) {
	super(encodedKey);
    }

    /**
     * Returns the key bytes, encoded according to the PKCS #8 standard.
     *
     * @return the PKCS #8 encoding of the key.
     */
    public byte[] getEncoded() {
	return super.getEncoded();
    }

    /**
     * Returns the name of the encoding format associated with this
     * key specification.
     *
     * @return the string <code>"PKCS#8"</code>.
     */
    public final String getFormat() {
	return "PKCS#8";
    }
}