0N/A/*
2362N/A * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage com.sun.crypto.provider;
0N/A
0N/Aimport java.io.*;
0N/Aimport sun.security.x509.AlgorithmId;
0N/Aimport sun.security.util.*;
0N/A
0N/A/**
0N/A * This class implements the <code>EncryptedPrivateKeyInfo</code> type,
0N/A * which is defined in PKCS #8 as follows:
0N/A *
0N/A * <pre>
0N/A * EncryptedPrivateKeyInfo ::= SEQUENCE {
0N/A * encryptionAlgorithm AlgorithmIdentifier,
0N/A * encryptedData OCTET STRING }
0N/A * </pre>
0N/A *
0N/A * @author Jan Luehe
0N/A */
0N/Afinal class EncryptedPrivateKeyInfo {
0N/A
0N/A // the "encryptionAlgorithm" field
0N/A private AlgorithmId algid;
0N/A
0N/A // the "encryptedData" field
0N/A private byte[] encryptedData;
0N/A
0N/A // the ASN.1 encoded contents of this class
0N/A private byte[] encoded;
0N/A
0N/A /**
0N/A * Constructs (i.e., parses) an <code>EncryptedPrivateKeyInfo</code> from
0N/A * its encoding.
0N/A */
0N/A EncryptedPrivateKeyInfo(byte[] encoded) throws IOException {
0N/A DerValue val = new DerValue(encoded);
0N/A
0N/A DerValue[] seq = new DerValue[2];
0N/A
0N/A seq[0] = val.data.getDerValue();
0N/A seq[1] = val.data.getDerValue();
0N/A
0N/A if (val.data.available() != 0) {
0N/A throw new IOException("overrun, bytes = " + val.data.available());
0N/A }
0N/A
0N/A this.algid = AlgorithmId.parse(seq[0]);
0N/A if (seq[0].data.available() != 0) {
0N/A throw new IOException("encryptionAlgorithm field overrun");
0N/A }
0N/A
0N/A this.encryptedData = seq[1].getOctetString();
0N/A if (seq[1].data.available() != 0)
0N/A throw new IOException("encryptedData field overrun");
0N/A
0N/A this.encoded = (byte[])encoded.clone();
0N/A }
0N/A
0N/A /**
0N/A * Constructs an <code>EncryptedPrivateKeyInfo</code> from the
0N/A * encryption algorithm and the encrypted data.
0N/A */
0N/A EncryptedPrivateKeyInfo(AlgorithmId algid, byte[] encryptedData) {
0N/A this.algid = algid;
0N/A this.encryptedData = (byte[])encryptedData.clone();
0N/A this.encoded = null; // lazy generation of encoding
0N/A }
0N/A
0N/A /**
0N/A * Returns the encryption algorithm.
0N/A */
0N/A AlgorithmId getAlgorithm() {
0N/A return this.algid;
0N/A }
0N/A
0N/A /**
0N/A * Returns the encrypted data.
0N/A */
0N/A byte[] getEncryptedData() {
0N/A return (byte[])this.encryptedData.clone();
0N/A }
0N/A
0N/A /**
0N/A * Returns the ASN.1 encoding of this class.
0N/A */
0N/A byte[] getEncoded()
0N/A throws IOException
0N/A {
0N/A if (this.encoded != null) return (byte[])this.encoded.clone();
0N/A
0N/A DerOutputStream out = new DerOutputStream();
0N/A DerOutputStream tmp = new DerOutputStream();
0N/A
0N/A // encode encryption algorithm
0N/A algid.encode(tmp);
0N/A
0N/A // encode encrypted data
0N/A tmp.putOctetString(encryptedData);
0N/A
0N/A // wrap everything into a SEQUENCE
0N/A out.write(DerValue.tag_Sequence, tmp);
0N/A this.encoded = out.toByteArray();
0N/A
0N/A return (byte[])this.encoded.clone();
0N/A }
0N/A}