/* * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 in the LICENSE file that * accompanied this code). * * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package com.sun.crypto.provider;import java.math.*;import java.io.*;import sun.security.x509.AlgorithmId;import sun.security.util.*;/** * This class implements the <code>PrivateKeyInfo</code> type, * which is defined in PKCS #8 as follows: * * <pre> * PrivateKeyInfo ::= SEQUENCE { * version INTEGER, * privateKeyAlgorithm AlgorithmIdentifier, * privateKey OCTET STRING, * attributes [0] IMPLICIT Attributes OPTIONAL } * </pre> * * @author Jan Luehe */final class PrivateKeyInfo { // the version number defined by the PKCS #8 standard private static final BigInteger VERSION = BigInteger.ZERO; // the private-key algorithm private AlgorithmId algid; // the private-key value private byte[] privkey; /** * Constructs a PKCS#8 PrivateKeyInfo from its ASN.1 encoding. */ PrivateKeyInfo(byte[] encoded) throws IOException { DerValue val = new DerValue(encoded); if (val.tag != DerValue.tag_Sequence) throw new IOException("private key parse error: not a sequence"); // version BigInteger parsedVersion = val.data.getBigInteger(); if (!parsedVersion.equals(VERSION)) { throw new IOException("version mismatch: (supported: " + VERSION + ", parsed: " + parsedVersion); } // privateKeyAlgorithm this.algid = AlgorithmId.parse(val.data.getDerValue()); // privateKey this.privkey = val.data.getOctetString(); // OPTIONAL attributes not supported yet } /** * Returns the private-key algorithm. */ AlgorithmId getAlgorithm() { return this.algid; }}
/*
* Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 in the LICENSE file that
* accompanied this code).
*
* 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.crypto.provider;
import java.math.*;
import java.io.*;
import sun.security.x509.AlgorithmId;
import sun.security.util.*;
/**
* This class implements the <code>PrivateKeyInfo</code> type,
* which is defined in PKCS #8 as follows:
*
* <pre>
* PrivateKeyInfo ::= SEQUENCE {
* version INTEGER,
* privateKeyAlgorithm AlgorithmIdentifier,
* privateKey OCTET STRING,
* attributes [0] IMPLICIT Attributes OPTIONAL }
* </pre>
*
* @author Jan Luehe
*/
final class PrivateKeyInfo {
// the version number defined by the PKCS #8 standard
private static final BigInteger VERSION = BigInteger.ZERO;
// the private-key algorithm
private AlgorithmId algid;
// the private-key value
private byte[] privkey;
/**
* Constructs a PKCS#8 PrivateKeyInfo from its ASN.1 encoding.
*/
PrivateKeyInfo(byte[] encoded) throws IOException {
DerValue val = new DerValue(encoded);
if (val.tag != DerValue.tag_Sequence)
throw new IOException("private key parse error: not a sequence");
// version
BigInteger parsedVersion = val.data.getBigInteger();
if (!parsedVersion.equals(VERSION)) {
throw new IOException("version mismatch: (supported: " +
VERSION + ", parsed: " + parsedVersion);
}
// privateKeyAlgorithm
this.algid = AlgorithmId.parse(val.data.getDerValue());
// privateKey
this.privkey = val.data.getOctetString();
// OPTIONAL attributes not supported yet
}
/**
* Returns the private-key algorithm.
*/
AlgorithmId getAlgorithm() {
return this.algid;
}
}