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Diffstat (limited to 'libjava/gnu/java/security/provider/EncodedKeyFactory.java')
| -rw-r--r-- | libjava/gnu/java/security/provider/EncodedKeyFactory.java | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/libjava/gnu/java/security/provider/EncodedKeyFactory.java b/libjava/gnu/java/security/provider/EncodedKeyFactory.java deleted file mode 100644 index 2bf0fff809e..00000000000 --- a/libjava/gnu/java/security/provider/EncodedKeyFactory.java +++ /dev/null @@ -1,303 +0,0 @@ -/* EncodedKeyFactory.java -- encoded key factory. - 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 gnu.java.security.provider; - -import gnu.java.security.OID; -import gnu.java.security.der.BitString; -import gnu.java.security.der.DERReader; -import gnu.java.security.der.DERValue; - -import java.io.IOException; -import java.math.BigInteger; -import java.security.AlgorithmParameters; -import java.security.InvalidKeyException; -import java.security.Key; -import java.security.KeyFactorySpi; -import java.security.NoSuchAlgorithmException; -import java.security.PrivateKey; -import java.security.PublicKey; -import java.security.spec.DSAParameterSpec; -import java.security.spec.InvalidKeySpecException; -import java.security.spec.InvalidParameterSpecException; -import java.security.spec.KeySpec; -import java.security.spec.PKCS8EncodedKeySpec; -import java.security.spec.RSAPrivateCrtKeySpec; -import java.security.spec.RSAPublicKeySpec; -import java.security.spec.X509EncodedKeySpec; - -import javax.crypto.spec.DHParameterSpec; - -/** - * A factory for keys encoded in either the X.509 format (for public - * keys) or the PKCS#8 format (for private keys). - * - * @author Casey Marshall (rsdio@metastatic.org) - */ -public class EncodedKeyFactory extends KeyFactorySpi -{ - - // Constants. - // ------------------------------------------------------------------------ - - private static final OID ID_DSA = new OID("1.2.840.10040.4.1"); - private static final OID ID_RSA = new OID("1.2.840.113549.1.1.1"); - private static final OID ID_DH = new OID("1.2.840.10046.2.1"); - - // Instance methods. - // ------------------------------------------------------------------------ - - public PublicKey engineGeneratePublic(KeySpec spec) - throws InvalidKeySpecException - { - if (!(spec instanceof X509EncodedKeySpec)) - throw new InvalidKeySpecException("only supports X.509 key specs"); - DERReader der = new DERReader(((X509EncodedKeySpec) spec).getEncoded()); - try - { - DERValue spki = der.read(); - if (!spki.isConstructed()) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - DERValue alg = der.read(); - if (!alg.isConstructed()) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - DERValue val = der.read(); - if (!(val.getValue() instanceof OID)) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - OID algId = (OID) val.getValue(); - byte[] algParams = null; - if (alg.getLength() > val.getEncodedLength()) - { - val = der.read(); - algParams = val.getEncoded(); - if (val.isConstructed()) - der.skip(val.getLength()); - } - val = der.read(); - if (!(val.getValue() instanceof BitString)) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - byte[] publicKey = ((BitString) val.getValue()).toByteArray(); - if (algId.equals(ID_DSA)) - { - BigInteger p = null, g = null, q = null, Y; - if (algParams != null) - { - DERReader dsaParams = new DERReader(algParams); - val = dsaParams.read(); - if (!val.isConstructed()) - throw new InvalidKeySpecException("malformed DSA parameters"); - val = dsaParams.read(); - if (!(val.getValue() instanceof BigInteger)) - throw new InvalidKeySpecException("malformed DSA parameters"); - p = (BigInteger) val.getValue(); - val = dsaParams.read(); - if (!(val.getValue() instanceof BigInteger)) - throw new InvalidKeySpecException("malformed DSA parameters"); - q = (BigInteger) val.getValue(); - val = dsaParams.read(); - if (!(val.getValue() instanceof BigInteger)) - throw new InvalidKeySpecException("malformed DSA parameters"); - g = (BigInteger) val.getValue(); - } - DERReader dsaPub = new DERReader(publicKey); - val = dsaPub.read(); - if (!(val.getValue() instanceof BigInteger)) - throw new InvalidKeySpecException("malformed DSA parameters"); - Y = (BigInteger) val.getValue(); - return new GnuDSAPublicKey(Y, p, q, g); - } - else if (algId.equals(ID_RSA)) - { - DERReader rsaParams = new DERReader(publicKey); - if (!rsaParams.read().isConstructed()) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - return new GnuRSAPublicKey(new RSAPublicKeySpec( - (BigInteger) rsaParams.read().getValue(), - (BigInteger) rsaParams.read().getValue())); - } - else if (algId.equals(ID_DH)) - { - if (algParams == null) - throw new InvalidKeySpecException("missing DH parameters"); - DERReader dhParams = new DERReader(algParams); - val = dhParams.read(); - BigInteger p, g, q, Y; - if (!val.isConstructed()) - throw new InvalidKeySpecException("malformed DH parameters"); - val = dhParams.read(); - if (!(val.getValue() instanceof BigInteger)) - throw new InvalidKeySpecException("malformed DH parameters"); - p = (BigInteger) val.getValue(); - val = dhParams.read(); - if (!(val.getValue() instanceof BigInteger)) - throw new InvalidKeySpecException("malformed DH parameters"); - g = (BigInteger) val.getValue(); - val = dhParams.read(); - if (!(val.getValue() instanceof BigInteger)) - throw new InvalidKeySpecException("malformed DH parameters"); - q = (BigInteger) val.getValue(); - DERReader dhPub = new DERReader(publicKey); - val = dhPub.read(); - if (!(val.getValue() instanceof BigInteger)) - throw new InvalidKeySpecException("malformed DH parameters"); - Y = (BigInteger) val.getValue(); - return (PublicKey) new GnuDHPublicKey(new DHParameterSpec(p, g), Y, q); - } - else - throw new InvalidKeySpecException("unknown algorithm: " + algId); - } - catch (IOException ioe) - { - throw new InvalidKeySpecException(ioe.getMessage()); - } - } - - public PrivateKey engineGeneratePrivate(KeySpec spec) - throws InvalidKeySpecException - { - if (!(spec instanceof PKCS8EncodedKeySpec)) - { - throw new InvalidKeySpecException("only supports PKCS8 key specs"); - } - DERReader der = new DERReader(((PKCS8EncodedKeySpec) spec).getEncoded()); - try - { - DERValue pki = der.read(); - if (!pki.isConstructed()) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - DERValue val = der.read(); - if (!(val.getValue() instanceof BigInteger)) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - DERValue alg = der.read(); - if (!alg.isConstructed()) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - val = der.read(); - if (!(val.getValue() instanceof OID)) - { - throw new InvalidKeySpecException("malformed encoded key"); - } - OID algId = (OID) val.getValue(); - byte[] algParams = null; - if (alg.getLength() > val.getEncodedLength()) - { - val = der.read(); - algParams = val.getEncoded(); - if (val.isConstructed()) - der.skip(val.getLength()); - } - byte[] privateKey = (byte[]) der.read().getValue(); - if (algId.equals(ID_DSA)) - { - if (algParams == null) - { - throw new InvalidKeySpecException("missing DSA parameters"); - } - AlgorithmParameters params = AlgorithmParameters.getInstance("DSA"); - params.init(algParams); - DSAParameterSpec dsaSpec = (DSAParameterSpec) - params.getParameterSpec(DSAParameterSpec.class); - DERReader dsaPriv = new DERReader(privateKey); - return new GnuDSAPrivateKey((BigInteger) dsaPriv.read().getValue(), - dsaSpec.getP(), dsaSpec.getQ(), dsaSpec.getG()); - } - else if (algId.equals(ID_RSA)) - { - DERReader rsaParams = new DERReader(privateKey); - if (!rsaParams.read().isConstructed()) - throw new InvalidKeySpecException("malformed encoded key"); - return new GnuRSAPrivateKey(new RSAPrivateCrtKeySpec( - (BigInteger) rsaParams.read().getValue(), // n - (BigInteger) rsaParams.read().getValue(), // e - (BigInteger) rsaParams.read().getValue(), // d - (BigInteger) rsaParams.read().getValue(), // p - (BigInteger) rsaParams.read().getValue(), // q - (BigInteger) rsaParams.read().getValue(), // d mod (p - 1) - (BigInteger) rsaParams.read().getValue(), // d mod (q - 1) - (BigInteger) rsaParams.read().getValue())); // (inv q) mod p - } - else - throw new InvalidKeySpecException("unknown algorithm: " + algId); - } - catch (InvalidParameterSpecException iapse) - { - throw new InvalidKeySpecException(iapse.getMessage()); - } - catch (NoSuchAlgorithmException nsae) - { - throw new InvalidKeySpecException(nsae.getMessage()); - } - catch (IOException ioe) - { - throw new InvalidKeySpecException(ioe.getMessage()); - } - } - - public KeySpec engineGetKeySpec(Key key, Class speClass) - throws InvalidKeySpecException - { - if ((key instanceof PrivateKey) && key.getFormat().equals("PKCS#8") - && speClass.isAssignableFrom(PKCS8EncodedKeySpec.class)) - return new PKCS8EncodedKeySpec(key.getEncoded()); - else if ((key instanceof PublicKey) && key.getFormat().equals("X.509") - && speClass.isAssignableFrom(X509EncodedKeySpec.class)) - return new X509EncodedKeySpec(key.getEncoded()); - else - throw new InvalidKeySpecException(); - } - - public Key engineTranslateKey(Key key) throws InvalidKeyException - { - throw new InvalidKeyException("translating keys not supported"); - } -} |
