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Diffstat (limited to 'libjava/javax/crypto/EncryptedPrivateKeyInfo.java')
-rw-r--r-- | libjava/javax/crypto/EncryptedPrivateKeyInfo.java | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/libjava/javax/crypto/EncryptedPrivateKeyInfo.java b/libjava/javax/crypto/EncryptedPrivateKeyInfo.java deleted file mode 100644 index a52d7b15d23..00000000000 --- a/libjava/javax/crypto/EncryptedPrivateKeyInfo.java +++ /dev/null @@ -1,282 +0,0 @@ -/* EncryptedPrivateKeyInfo.java -- As in PKCS #8. - Copyright (C) 2004 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath 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 for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package javax.crypto; - -import gnu.java.security.OID; -import gnu.java.security.der.DER; -import gnu.java.security.der.DERReader; -import gnu.java.security.der.DERValue; - -import java.io.IOException; -import java.security.AlgorithmParameters; -import java.security.NoSuchAlgorithmException; -import java.security.spec.InvalidKeySpecException; -import java.security.spec.PKCS8EncodedKeySpec; -import java.util.ArrayList; -import java.util.List; - -/** - * An implementation of the <code>EncryptedPrivateKeyInfo</code> ASN.1 - * type as specified in <a - * href="http://www.rsasecurity.com/rsalabs/pkcs/pkcs-8/">PKCS #8 - - * Private-Key Information Syntax Standard</a>. - * - * <p>The ASN.1 type <code>EncryptedPrivateKeyInfo</code> is: - * - * <blockquote> - * <pre>EncryptedPrivateKeyInfo ::= SEQUENCE { - * encryptionAlgorithm EncryptionAlgorithmIdentifier, - * encryptedData EncryptedData } - * - * EncryptionAlgorithmIdentifier ::= AlgorithmIdentifier - * - * EncrytpedData ::= OCTET STRING - * - * AlgorithmIdentifier ::= SEQUENCE { - * algorithm OBJECT IDENTIFIER, - * parameters ANY DEFINED BY algorithm OPTIONAL }</pre> - * </blockquote> - * - * @author Casey Marshall (csm@gnu.org) - * @since 1.4 - * @see java.security.spec.PKCS8EncodedKeySpec - */ -public class EncryptedPrivateKeyInfo -{ - - // Fields. - // ------------------------------------------------------------------------ - - /** The encrypted data. */ - private byte[] encryptedData; - - /** The encoded, encrypted key. */ - private byte[] encoded; - - /** The OID of the encryption algorithm. */ - private OID algOid; - - /** The encryption algorithm's parameters. */ - private AlgorithmParameters params; - - /** The encoded ASN.1 algorithm parameters. */ - private byte[] encodedParams; - - // Constructors. - // ------------------------------------------------------------------------ - - /** - * Create a new <code>EncryptedPrivateKeyInfo</code> object from raw - * encrypted data and the parameters used for encryption. - * - * <p>The <code>encryptedData</code> array is cloned. - * - * @param params The encryption algorithm parameters. - * @param encryptedData The encrypted key data. - * @throws java.lang.IllegalArgumentException If the - * <code>encryptedData</code> array is empty (zero-length). - * @throws java.security.NoSuchAlgorithmException If the algorithm - * specified in the parameters is not supported. - * @throws java.lang.NullPointerException If <code>encryptedData</code> - * is null. - */ - public EncryptedPrivateKeyInfo(AlgorithmParameters params, - byte[] encryptedData) - throws IllegalArgumentException, NoSuchAlgorithmException - { - if (encryptedData.length == 0) - { - throw new IllegalArgumentException("0-length encryptedData"); - } - this.params = params; - algOid = new OID(params.getAlgorithm()); - this.encryptedData = (byte[]) encryptedData.clone(); - } - - /** - * Create a new <code>EncryptedPrivateKeyInfo</code> from an encoded - * representation, parsing the ASN.1 sequence. - * - * @param encoded The encoded info. - * @throws java.io.IOException If parsing the encoded data fails. - * @throws java.lang.NullPointerException If <code>encoded</code> is - * null. - */ - public EncryptedPrivateKeyInfo(byte[] encoded) - throws IOException - { - this.encoded = (byte[]) encoded.clone(); - decode(); - } - - /** - * Create a new <code>EncryptedPrivateKeyInfo</code> from the cipher - * name and the encrytpedData. - * - * <p>The <code>encryptedData</code> array is cloned. - * - * @param algName The name of the algorithm (as an object identifier). - * @param encryptedData The encrypted key data. - * @throws java.lang.IllegalArgumentException If the - * <code>encryptedData</code> array is empty (zero-length). - * @throws java.security.NoSuchAlgorithmException If algName is not - * the name of a supported algorithm. - * @throws java.lang.NullPointerException If <code>encryptedData</code> - * is null. - */ - public EncryptedPrivateKeyInfo(String algName, byte[] encryptedData) - throws IllegalArgumentException, NoSuchAlgorithmException, - NullPointerException - { - if (encryptedData.length == 0) - { - throw new IllegalArgumentException("0-length encryptedData"); - } - this.algOid = new OID(algName); - this.encryptedData = (byte[]) encryptedData.clone(); - } - - // Instance methods. - // ------------------------------------------------------------------------ - - /** - * Return the name of the cipher used to encrypt this key. - * - * @return The algorithm name. - */ - public String getAlgName() - { - return algOid.toString(); - } - - public AlgorithmParameters getAlgParameters() - { - if (params == null && encodedParams != null) - { - try - { - params = AlgorithmParameters.getInstance(getAlgName()); - params.init(encodedParams); - } - catch (NoSuchAlgorithmException ignore) - { - } - catch (IOException ignore) - { - } - } - return params; - } - - public synchronized byte[] getEncoded() throws IOException - { - if (encoded == null) encode(); - return (byte[]) encoded.clone(); - } - - public byte[] getEncryptedData() - { - return encryptedData; - } - - public PKCS8EncodedKeySpec getKeySpec(Cipher cipher) - throws InvalidKeySpecException - { - try - { - return new PKCS8EncodedKeySpec(cipher.doFinal(encryptedData)); - } - catch (Exception x) - { - throw new InvalidKeySpecException(x.toString()); - } - } - - // Own methods. - // ------------------------------------------------------------------------- - - private void decode() throws IOException - { - DERReader der = new DERReader(encoded); - DERValue val = der.read(); - if (val.getTag() != DER.SEQUENCE) - throw new IOException("malformed EncryptedPrivateKeyInfo"); - val = der.read(); - if (val.getTag() != DER.SEQUENCE) - throw new IOException("malformed AlgorithmIdentifier"); - int algpLen = val.getLength(); - DERValue oid = der.read(); - if (oid.getTag() != DER.OBJECT_IDENTIFIER) - throw new IOException("malformed AlgorithmIdentifier"); - algOid = (OID) oid.getValue(); - if (algpLen == 0) - { - val = der.read(); - if (val.getTag() != 0) - { - encodedParams = val.getEncoded(); - der.read(); - } - } - else if (oid.getEncodedLength() < val.getLength()) - { - val = der.read(); - encodedParams = val.getEncoded(); - } - val = der.read(); - if (val.getTag() != DER.OCTET_STRING) - throw new IOException("malformed AlgorithmIdentifier"); - encryptedData = (byte[]) val.getValue(); - } - - private void encode() throws IOException - { - List algId = new ArrayList(2); - algId.add(new DERValue(DER.OBJECT_IDENTIFIER, algOid)); - getAlgParameters(); - if (params != null) - { - algId.add(DERReader.read(params.getEncoded())); - } - List epki = new ArrayList(2); - epki.add(new DERValue(DER.CONSTRUCTED|DER.SEQUENCE, algId)); - epki.add(new DERValue(DER.OCTET_STRING, encryptedData)); - encoded = new DERValue(DER.CONSTRUCTED|DER.SEQUENCE, epki).getEncoded(); - } -} |