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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 1999, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package sun.security.pkcs; | ||
| 27 | |||
| 28 | import java.io.*; | ||
| 29 | import sun.security.x509.*; | ||
| 30 | import sun.security.util.DerValue; | ||
| 31 | import sun.security.util.DerOutputStream; | ||
| 32 | |||
| 33 | /** | ||
| 34 | * This class implements the <code>EncryptedPrivateKeyInfo</code> type, | ||
| 35 | * which is defined in PKCS #8 as follows: | ||
| 36 | * | ||
| 37 | * <pre> | ||
| 38 | * EncryptedPrivateKeyInfo ::= SEQUENCE { | ||
| 39 | * encryptionAlgorithm AlgorithmIdentifier, | ||
| 40 | * encryptedData OCTET STRING } | ||
| 41 | * </pre> | ||
| 42 | * | ||
| 43 | * @author Jan Luehe | ||
| 44 | * | ||
| 45 | */ | ||
| 46 | |||
| 47 | public class EncryptedPrivateKeyInfo { | ||
| 48 | |||
| 49 | // the "encryptionAlgorithm" field | ||
| 50 | private AlgorithmId algid; | ||
| 51 | |||
| 52 | // the "encryptedData" field | ||
| 53 | private byte[] encryptedData; | ||
| 54 | |||
| 55 | // the ASN.1 encoded contents of this class | ||
| 56 | private byte[] encoded; | ||
| 57 | |||
| 58 | /** | ||
| 59 | * Constructs (i.e., parses) an <code>EncryptedPrivateKeyInfo</code> from | ||
| 60 | * its encoding. | ||
| 61 | */ | ||
| 62 | public EncryptedPrivateKeyInfo(byte[] encoded) | ||
| 63 | throws IOException | ||
| 64 | { | ||
| 65 | if (encoded == null) { | ||
| 66 | throw new IllegalArgumentException("encoding must not be null"); | ||
| 67 | } | ||
| 68 | |||
| 69 | DerValue val = new DerValue(encoded); | ||
| 70 | |||
| 71 | DerValue[] seq = new DerValue[2]; | ||
| 72 | |||
| 73 | seq[0] = val.data.getDerValue(); | ||
| 74 | seq[1] = val.data.getDerValue(); | ||
| 75 | |||
| 76 | if (val.data.available() != 0) { | ||
| 77 | throw new IOException("overrun, bytes = " + val.data.available()); | ||
| 78 | } | ||
| 79 | |||
| 80 | this.algid = AlgorithmId.parse(seq[0]); | ||
| 81 | if (seq[0].data.available() != 0) { | ||
| 82 | throw new IOException("encryptionAlgorithm field overrun"); | ||
| 83 | } | ||
| 84 | |||
| 85 | this.encryptedData = seq[1].getOctetString(); | ||
| 86 | if (seq[1].data.available() != 0) | ||
| 87 | throw new IOException("encryptedData field overrun"); | ||
| 88 | |||
| 89 | this.encoded = encoded.clone(); | ||
| 90 | } | ||
| 91 | |||
| 92 | /** | ||
| 93 | * Constructs an <code>EncryptedPrivateKeyInfo</code> from the | ||
| 94 | * encryption algorithm and the encrypted data. | ||
| 95 | */ | ||
| 96 | public EncryptedPrivateKeyInfo(AlgorithmId algid, byte[] encryptedData) { | ||
| 97 | this.algid = algid; | ||
| 98 | this.encryptedData = encryptedData.clone(); | ||
| 99 | } | ||
| 100 | |||
| 101 | /** | ||
| 102 | * Returns the encryption algorithm. | ||
| 103 | */ | ||
| 104 | public AlgorithmId getAlgorithm() { | ||
| 105 | return this.algid; | ||
| 106 | } | ||
| 107 | |||
| 108 | /** | ||
| 109 | * Returns the encrypted data. | ||
| 110 | */ | ||
| 111 | public byte[] getEncryptedData() { | ||
| 112 | return this.encryptedData.clone(); | ||
| 113 | } | ||
| 114 | |||
| 115 | /** | ||
| 116 | * Returns the ASN.1 encoding of this class. | ||
| 117 | */ | ||
| 118 | public byte[] getEncoded() | ||
| 119 | throws IOException | ||
| 120 | { | ||
| 121 | if (this.encoded != null) return this.encoded.clone(); | ||
| 122 | |||
| 123 | DerOutputStream out = new DerOutputStream(); | ||
| 124 | DerOutputStream tmp = new DerOutputStream(); | ||
| 125 | |||
| 126 | // encode encryption algorithm | ||
| 127 | algid.encode(tmp); | ||
| 128 | |||
| 129 | // encode encrypted data | ||
| 130 | tmp.putOctetString(encryptedData); | ||
| 131 | |||
| 132 | // wrap everything into a SEQUENCE | ||
| 133 | out.write(DerValue.tag_Sequence, tmp); | ||
| 134 | this.encoded = out.toByteArray(); | ||
| 135 | |||
| 136 | return this.encoded.clone(); | ||
| 137 | } | ||
| 138 | |||
| 139 | public boolean equals(Object other) { | ||
| 140 | if (this == other) | ||
| 141 | return true; | ||
| 142 | if (!(other instanceof EncryptedPrivateKeyInfo)) | ||
| 143 | return false; | ||
| 144 | try { | ||
| 145 | byte[] thisEncrInfo = this.getEncoded(); | ||
| 146 | byte[] otherEncrInfo | ||
| 147 | = ((EncryptedPrivateKeyInfo)other).getEncoded(); | ||
| 148 | |||
| 149 | if (thisEncrInfo.length != otherEncrInfo.length) | ||
| 150 | return false; | ||
| 151 | for (int i = 0; i < thisEncrInfo.length; i++) | ||
| 152 | if (thisEncrInfo[i] != otherEncrInfo[i]) | ||
| 153 | return false; | ||
| 154 | return true; | ||
| 155 | } catch (IOException e) { | ||
| 156 | return false; | ||
| 157 | } | ||
| 158 | } | ||
| 159 | |||
| 160 | /** | ||
| 161 | * Returns a hashcode for this EncryptedPrivateKeyInfo. | ||
| 162 | * | ||
| 163 | * @return a hashcode for this EncryptedPrivateKeyInfo. | ||
| 164 | */ | ||
| 165 | public int hashCode() { | ||
| 166 | int retval = 0; | ||
| 167 | |||
| 168 | for (int i = 0; i < this.encryptedData.length; i++) | ||
| 169 | retval += this.encryptedData[i] * i; | ||
| 170 | return retval; | ||
| 171 | } | ||
| 172 | } | ||