/* * 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.io.*;import sun.security.x509.AlgorithmId;import sun.security.util.*;/** * This class implements the <code>EncryptedPrivateKeyInfo</code> type, * which is defined in PKCS #8 as follows: * * <pre> * EncryptedPrivateKeyInfo ::= SEQUENCE { * encryptionAlgorithm AlgorithmIdentifier, * encryptedData OCTET STRING } * </pre> * * @author Jan Luehe */final class EncryptedPrivateKeyInfo { // the "encryptionAlgorithm" field private AlgorithmId algid; // the "encryptedData" field private byte[] encryptedData; // the ASN.1 encoded contents of this class private byte[] encoded; /** * Constructs (i.e., parses) an <code>EncryptedPrivateKeyInfo</code> from * its encoding. */ EncryptedPrivateKeyInfo(byte[] encoded) throws IOException { DerValue val = new DerValue(encoded); DerValue[] seq = new DerValue[2]; seq[0] = val.data.getDerValue(); seq[1] = val.data.getDerValue(); if (val.data.available() != 0) { throw new IOException("overrun, bytes = " + val.data.available()); } this.algid = AlgorithmId.parse(seq[0]); if (seq[0].data.available() != 0) { throw new IOException("encryptionAlgorithm field overrun"); } this.encryptedData = seq[1].getOctetString(); if (seq[1].data.available() != 0) throw new IOException("encryptedData field overrun"); this.encoded = (byte[])encoded.clone(); } /** * Constructs an <code>EncryptedPrivateKeyInfo</code> from the * encryption algorithm and the encrypted data. */ EncryptedPrivateKeyInfo(AlgorithmId algid, byte[] encryptedData) { this.algid = algid; this.encryptedData = (byte[])encryptedData.clone(); this.encoded = null; // lazy generation of encoding } /** * Returns the encryption algorithm. */ AlgorithmId getAlgorithm() { return this.algid; } /** * Returns the encrypted data. */ byte[] getEncryptedData() { return (byte[])this.encryptedData.clone(); } /** * Returns the ASN.1 encoding of this class. */ byte[] getEncoded() throws IOException { if (this.encoded != null) return (byte[])this.encoded.clone(); DerOutputStream out = new DerOutputStream(); DerOutputStream tmp = new DerOutputStream(); // encode encryption algorithm algid.encode(tmp); // encode encrypted data tmp.putOctetString(encryptedData); // wrap everything into a SEQUENCE out.write(DerValue.tag_Sequence, tmp); this.encoded = out.toByteArray(); return (byte[])this.encoded.clone(); }}
/*
* 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.io.*;
import sun.security.x509.AlgorithmId;
import sun.security.util.*;
/**
* This class implements the <code>EncryptedPrivateKeyInfo</code> type,
* which is defined in PKCS #8 as follows:
*
* <pre>
* EncryptedPrivateKeyInfo ::= SEQUENCE {
* encryptionAlgorithm AlgorithmIdentifier,
* encryptedData OCTET STRING }
* </pre>
*
* @author Jan Luehe
*/
final class EncryptedPrivateKeyInfo {
// the "encryptionAlgorithm" field
private AlgorithmId algid;
// the "encryptedData" field
private byte[] encryptedData;
// the ASN.1 encoded contents of this class
private byte[] encoded;
/**
* Constructs (i.e., parses) an <code>EncryptedPrivateKeyInfo</code> from
* its encoding.
*/
EncryptedPrivateKeyInfo(byte[] encoded) throws IOException {
DerValue val = new DerValue(encoded);
DerValue[] seq = new DerValue[2];
seq[0] = val.data.getDerValue();
seq[1] = val.data.getDerValue();
if (val.data.available() != 0) {
throw new IOException("overrun, bytes = " + val.data.available());
}
this.algid = AlgorithmId.parse(seq[0]);
if (seq[0].data.available() != 0) {
throw new IOException("encryptionAlgorithm field overrun");
}
this.encryptedData = seq[1].getOctetString();
if (seq[1].data.available() != 0)
throw new IOException("encryptedData field overrun");
this.encoded = (byte[])encoded.clone();
}
/**
* Constructs an <code>EncryptedPrivateKeyInfo</code> from the
* encryption algorithm and the encrypted data.
*/
EncryptedPrivateKeyInfo(AlgorithmId algid, byte[] encryptedData) {
this.algid = algid;
this.encryptedData = (byte[])encryptedData.clone();
this.encoded = null; // lazy generation of encoding
}
/**
* Returns the encryption algorithm.
*/
AlgorithmId getAlgorithm() {
return this.algid;
}
/**
* Returns the encrypted data.
*/
byte[] getEncryptedData() {
return (byte[])this.encryptedData.clone();
}
/**
* Returns the ASN.1 encoding of this class.
*/
byte[] getEncoded()
throws IOException
{
if (this.encoded != null) return (byte[])this.encoded.clone();
DerOutputStream out = new DerOutputStream();
DerOutputStream tmp = new DerOutputStream();
// encode encryption algorithm
algid.encode(tmp);
// encode encrypted data
tmp.putOctetString(encryptedData);
// wrap everything into a SEQUENCE
out.write(DerValue.tag_Sequence, tmp);
this.encoded = out.toByteArray();
return (byte[])this.encoded.clone();
}
}