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Diffstat (limited to 'libjava/classpath/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java')
| -rw-r--r-- | libjava/classpath/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/libjava/classpath/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java b/libjava/classpath/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java deleted file mode 100644 index 1806ecf587f..00000000000 --- a/libjava/classpath/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java +++ /dev/null @@ -1,251 +0,0 @@ -/* DSSKeyPairPKCS8Codec.java -- PKCS#8 Encoding/Decoding handler - Copyright (C) 2006, 2010 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 gnu.java.security.key.dss; - -import gnu.java.security.Configuration; -import gnu.java.security.OID; -import gnu.java.security.Registry; -import gnu.java.security.der.DER; -import gnu.java.security.der.DERReader; -import gnu.java.security.der.DERValue; -import gnu.java.security.der.DERWriter; -import gnu.java.security.key.IKeyPairCodec; -import gnu.java.security.util.DerUtil; -import gnu.java.security.util.Util; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.math.BigInteger; -import java.security.InvalidParameterException; -import java.security.PrivateKey; -import java.security.PublicKey; -import java.util.ArrayList; -import java.util.logging.Logger; - -/** - * An implementation of an {@link IKeyPairCodec} that knows how to encode / - * decode PKCS#8 ASN.1 external representation of DSS private keys. - * - * @author Casey Marshall (rsdio@metastatic.org) - */ -public class DSSKeyPairPKCS8Codec - implements IKeyPairCodec -{ - private static final Logger log = Configuration.DEBUG ? - Logger.getLogger(DSSKeyPairPKCS8Codec.class.getName()) : null; - - private static final OID DSA_ALG_OID = new OID(Registry.DSA_OID_STRING); - - // implicit 0-arguments constructor - - public int getFormatID() - { - return PKCS8_FORMAT; - } - - /** - * @throws InvalidParameterException ALWAYS. - */ - public byte[] encodePublicKey(PublicKey key) - { - throw new InvalidParameterException("Wrong format for public keys"); - } - - /** - * Returns the PKCS#8 ASN.1 <i>PrivateKeyInfo</i> representation of a DSA - * private key. The ASN.1 specification is as follows: - * - * <pre> - * PrivateKeyInfo ::= SEQUENCE { - * version INTEGER, -- MUST be 0 - * privateKeyAlgorithm AlgorithmIdentifier, - * privateKey OCTET STRING - * } - * - * AlgorithmIdentifier ::= SEQUENCE { - * algorithm OBJECT IDENTIFIER, - * parameters ANY DEFINED BY algorithm OPTIONAL - * } - * - * DssParams ::= SEQUENCE { - * p INTEGER, - * q INTEGER, - * g INTEGER - * } - * </pre> - * - * @return the DER encoded form of the ASN.1 representation of the - * <i>PrivateKeyInfo</i> field in an X.509 certificate. - * @throw InvalidParameterException if an error occurs during the marshalling - * process. - */ - public byte[] encodePrivateKey(PrivateKey key) - { - if (! (key instanceof DSSPrivateKey)) - throw new InvalidParameterException("Wrong key type"); - - DERValue derVersion = new DERValue(DER.INTEGER, BigInteger.ZERO); - - DERValue derOID = new DERValue(DER.OBJECT_IDENTIFIER, DSA_ALG_OID); - - DSSPrivateKey pk = (DSSPrivateKey) key; - BigInteger p = pk.getParams().getP(); - BigInteger q = pk.getParams().getQ(); - BigInteger g = pk.getParams().getG(); - BigInteger x = pk.getX(); - - ArrayList params = new ArrayList(3); - params.add(new DERValue(DER.INTEGER, p)); - params.add(new DERValue(DER.INTEGER, q)); - params.add(new DERValue(DER.INTEGER, g)); - DERValue derParams = new DERValue(DER.CONSTRUCTED | DER.SEQUENCE, params); - - ArrayList algorithmID = new ArrayList(2); - algorithmID.add(derOID); - algorithmID.add(derParams); - DERValue derAlgorithmID = new DERValue(DER.CONSTRUCTED | DER.SEQUENCE, - algorithmID); - - // The OCTET STRING is the DER encoding of an INTEGER. - DERValue derX = new DERValue(DER.INTEGER, x); - DERValue derPrivateKey = new DERValue(DER.OCTET_STRING, derX.getEncoded()); - - ArrayList pki = new ArrayList(3); - pki.add(derVersion); - pki.add(derAlgorithmID); - pki.add(derPrivateKey); - DERValue derPKI = new DERValue(DER.CONSTRUCTED | DER.SEQUENCE, pki); - - byte[] result; - ByteArrayOutputStream baos = new ByteArrayOutputStream(); - try - { - DERWriter.write(baos, derPKI); - result = baos.toByteArray(); - } - catch (IOException e) - { - InvalidParameterException y = new InvalidParameterException(e.getMessage()); - y.initCause(e); - throw y; - } - return result; - } - - /** - * @throws InvalidParameterException ALWAYS. - */ - public PublicKey decodePublicKey(byte[] input) - { - throw new InvalidParameterException("Wrong format for public keys"); - } - - /** - * @param input the byte array to unmarshall into a valid DSS - * {@link PrivateKey} instance. MUST NOT be null. - * @return a new instance of a {@link DSSPrivateKey} decoded from the - * <i>PrivateKeyInfo</i> material fed as <code>input</code>. - * @throw InvalidParameterException if an exception occurs during the - * unmarshalling process. - */ - public PrivateKey decodePrivateKey(byte[] input) - { - if (Configuration.DEBUG) - log.entering(this.getClass().getName(), "decodePrivateKey"); - if (input == null) - throw new InvalidParameterException("Input bytes MUST NOT be null"); - - BigInteger version, p, q, g, x; - DERReader der = new DERReader(input); - try - { - DERValue derPKI = der.read(); - DerUtil.checkIsConstructed(derPKI, "Wrong PrivateKeyInfo field"); - - DERValue derVersion = der.read(); - if (! (derVersion.getValue() instanceof BigInteger)) - throw new InvalidParameterException("Wrong Version field"); - - version = (BigInteger) derVersion.getValue(); - if (version.compareTo(BigInteger.ZERO) != 0) - throw new InvalidParameterException("Unexpected Version: " + version); - - DERValue derAlgoritmID = der.read(); - DerUtil.checkIsConstructed(derAlgoritmID, "Wrong AlgorithmIdentifier field"); - - DERValue derOID = der.read(); - OID algOID = (OID) derOID.getValue(); - if (! algOID.equals(DSA_ALG_OID)) - throw new InvalidParameterException("Unexpected OID: " + algOID); - - DERValue derParams = der.read(); - DerUtil.checkIsConstructed(derParams, "Wrong DSS Parameters field"); - - DERValue val = der.read(); - DerUtil.checkIsBigInteger(val, "Wrong P field"); - p = (BigInteger) val.getValue(); - val = der.read(); - DerUtil.checkIsBigInteger(val, "Wrong Q field"); - q = (BigInteger) val.getValue(); - val = der.read(); - DerUtil.checkIsBigInteger(val, "Wrong G field"); - g = (BigInteger) val.getValue(); - - val = der.read(); - if (Configuration.DEBUG) - log.fine("val = " + val); - byte[] xBytes = (byte[]) val.getValue(); - if (Configuration.DEBUG) - log.fine(Util.dumpString(xBytes, "xBytes: ")); - DERReader der2 = new DERReader(xBytes); - val = der2.read(); - DerUtil.checkIsBigInteger(val, "Wrong X field"); - x = (BigInteger) val.getValue(); - } - catch (IOException e) - { - InvalidParameterException y = new InvalidParameterException(e.getMessage()); - y.initCause(e); - throw y; - } - if (Configuration.DEBUG) - log.exiting(this.getClass().getName(), "decodePrivateKey"); - return new DSSPrivateKey(Registry.PKCS8_ENCODING_ID, p, q, g, x); - } -} |
