| /* |
| * Copyright (c) 1998, 1999, 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 sun.security.pkcs; |
| |
| import java.io.*; |
| import sun.security.x509.*; |
| import sun.security.util.DerValue; |
| import sun.security.util.DerOutputStream; |
| |
| /** |
| * 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 |
| * |
| */ |
| |
| public 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. |
| */ |
| public EncryptedPrivateKeyInfo(byte[] encoded) |
| throws IOException |
| { |
| if (encoded == null) { |
| throw new IllegalArgumentException("encoding must not be null"); |
| } |
| |
| 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 = encoded.clone(); |
| } |
| |
| /** |
| * Constructs an <code>EncryptedPrivateKeyInfo</code> from the |
| * encryption algorithm and the encrypted data. |
| */ |
| public EncryptedPrivateKeyInfo(AlgorithmId algid, byte[] encryptedData) { |
| this.algid = algid; |
| this.encryptedData = encryptedData.clone(); |
| } |
| |
| /** |
| * Returns the encryption algorithm. |
| */ |
| public AlgorithmId getAlgorithm() { |
| return this.algid; |
| } |
| |
| /** |
| * Returns the encrypted data. |
| */ |
| public byte[] getEncryptedData() { |
| return this.encryptedData.clone(); |
| } |
| |
| /** |
| * Returns the ASN.1 encoding of this class. |
| */ |
| public byte[] getEncoded() |
| throws IOException |
| { |
| if (this.encoded != null) return 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 this.encoded.clone(); |
| } |
| |
| public boolean equals(Object other) { |
| if (this == other) |
| return true; |
| if (!(other instanceof EncryptedPrivateKeyInfo)) |
| return false; |
| try { |
| byte[] thisEncrInfo = this.getEncoded(); |
| byte[] otherEncrInfo |
| = ((EncryptedPrivateKeyInfo)other).getEncoded(); |
| |
| if (thisEncrInfo.length != otherEncrInfo.length) |
| return false; |
| for (int i = 0; i < thisEncrInfo.length; i++) |
| if (thisEncrInfo[i] != otherEncrInfo[i]) |
| return false; |
| return true; |
| } catch (IOException e) { |
| return false; |
| } |
| } |
| |
| /** |
| * Returns a hashcode for this EncryptedPrivateKeyInfo. |
| * |
| * @return a hashcode for this EncryptedPrivateKeyInfo. |
| */ |
| public int hashCode() { |
| int retval = 0; |
| |
| for (int i = 0; i < this.encryptedData.length; i++) |
| retval += this.encryptedData[i] * i; |
| return retval; |
| } |
| } |