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.math.*;
0N/Aimport java.io.*;
0N/Aimport sun.security.x509.AlgorithmId;
0N/Aimport sun.security.util.*;
0N/A
0N/A
0N/A/**
0N/A * This class implements the <code>PrivateKeyInfo</code> type,
0N/A * which is defined in PKCS #8 as follows:
0N/A *
0N/A * <pre>
0N/A * PrivateKeyInfo ::= SEQUENCE {
0N/A * version INTEGER,
0N/A * privateKeyAlgorithm AlgorithmIdentifier,
0N/A * privateKey OCTET STRING,
0N/A * attributes [0] IMPLICIT Attributes OPTIONAL }
0N/A * </pre>
0N/A *
0N/A * @author Jan Luehe
0N/A */
0N/Afinal class PrivateKeyInfo {
0N/A
0N/A // the version number defined by the PKCS #8 standard
0N/A private static final BigInteger VERSION = BigInteger.ZERO;
0N/A
0N/A // the private-key algorithm
0N/A private AlgorithmId algid;
0N/A
0N/A // the private-key value
0N/A private byte[] privkey;
0N/A
0N/A /**
0N/A * Constructs a PKCS#8 PrivateKeyInfo from its ASN.1 encoding.
0N/A */
0N/A PrivateKeyInfo(byte[] encoded) throws IOException {
0N/A DerValue val = new DerValue(encoded);
0N/A
0N/A if (val.tag != DerValue.tag_Sequence)
0N/A throw new IOException("private key parse error: not a sequence");
0N/A
0N/A // version
0N/A BigInteger parsedVersion = val.data.getBigInteger();
0N/A if (!parsedVersion.equals(VERSION)) {
0N/A throw new IOException("version mismatch: (supported: " +
0N/A VERSION + ", parsed: " + parsedVersion);
0N/A }
0N/A
0N/A // privateKeyAlgorithm
0N/A this.algid = AlgorithmId.parse(val.data.getDerValue());
0N/A
0N/A // privateKey
0N/A this.privkey = val.data.getOctetString();
0N/A
0N/A // OPTIONAL attributes not supported yet
0N/A }
0N/A
0N/A /**
0N/A * Returns the private-key algorithm.
0N/A */
0N/A AlgorithmId getAlgorithm() {
0N/A return this.algid;
0N/A }
0N/A}