src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/P11DSAKeyFactory.java
changeset 47216 71c04702a3d5
parent 43248 5e15de85a1a0
child 53257 5170dc2bcf64
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/P11DSAKeyFactory.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,263 @@
+/*
+ * Copyright (c) 2003, 2013, 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.pkcs11;
+
+import java.math.BigInteger;
+
+import java.security.*;
+import java.security.interfaces.*;
+import java.security.spec.*;
+
+import static sun.security.pkcs11.TemplateManager.*;
+import sun.security.pkcs11.wrapper.*;
+import static sun.security.pkcs11.wrapper.PKCS11Constants.*;
+
+/**
+ * DSA KeyFactory implementation.
+ *
+ * @author  Andreas Sterbenz
+ * @since   1.5
+ */
+final class P11DSAKeyFactory extends P11KeyFactory {
+
+    P11DSAKeyFactory(Token token, String algorithm) {
+        super(token, algorithm);
+    }
+
+    PublicKey implTranslatePublicKey(PublicKey key) throws InvalidKeyException {
+        try {
+            if (key instanceof DSAPublicKey) {
+                DSAPublicKey dsaKey = (DSAPublicKey)key;
+                DSAParams params = dsaKey.getParams();
+                return generatePublic(
+                    dsaKey.getY(),
+                    params.getP(),
+                    params.getQ(),
+                    params.getG()
+                );
+            } else if ("X.509".equals(key.getFormat())) {
+                // let Sun provider parse for us, then recurse
+                byte[] encoded = key.getEncoded();
+                key = new sun.security.provider.DSAPublicKey(encoded);
+                return implTranslatePublicKey(key);
+            } else {
+                throw new InvalidKeyException("PublicKey must be instance "
+                        + "of DSAPublicKey or have X.509 encoding");
+            }
+        } catch (PKCS11Exception e) {
+            throw new InvalidKeyException("Could not create DSA public key", e);
+        }
+    }
+
+    PrivateKey implTranslatePrivateKey(PrivateKey key)
+            throws InvalidKeyException {
+        try {
+            if (key instanceof DSAPrivateKey) {
+                DSAPrivateKey dsaKey = (DSAPrivateKey)key;
+                DSAParams params = dsaKey.getParams();
+                return generatePrivate(
+                    dsaKey.getX(),
+                    params.getP(),
+                    params.getQ(),
+                    params.getG()
+                );
+            } else if ("PKCS#8".equals(key.getFormat())) {
+                // let Sun provider parse for us, then recurse
+                byte[] encoded = key.getEncoded();
+                key = new sun.security.provider.DSAPrivateKey(encoded);
+                return implTranslatePrivateKey(key);
+            } else {
+                throw new InvalidKeyException("PrivateKey must be instance "
+                        + "of DSAPrivateKey or have PKCS#8 encoding");
+            }
+        } catch (PKCS11Exception e) {
+            throw new InvalidKeyException("Could not create DSA private key", e);
+        }
+    }
+
+    // see JCA spec
+    protected PublicKey engineGeneratePublic(KeySpec keySpec)
+            throws InvalidKeySpecException {
+        token.ensureValid();
+        if (keySpec instanceof X509EncodedKeySpec) {
+            try {
+                byte[] encoded = ((X509EncodedKeySpec)keySpec).getEncoded();
+                PublicKey key = new sun.security.provider.DSAPublicKey(encoded);
+                return implTranslatePublicKey(key);
+            } catch (InvalidKeyException e) {
+                throw new InvalidKeySpecException
+                        ("Could not create DSA public key", e);
+            }
+        }
+        if (keySpec instanceof DSAPublicKeySpec == false) {
+            throw new InvalidKeySpecException("Only DSAPublicKeySpec and "
+                + "X509EncodedKeySpec supported for DSA public keys");
+        }
+        try {
+            DSAPublicKeySpec ds = (DSAPublicKeySpec)keySpec;
+            return generatePublic(
+                ds.getY(),
+                ds.getP(),
+                ds.getQ(),
+                ds.getG()
+            );
+        } catch (PKCS11Exception e) {
+            throw new InvalidKeySpecException
+                ("Could not create DSA public key", e);
+        }
+    }
+
+    // see JCA spec
+    protected PrivateKey engineGeneratePrivate(KeySpec keySpec)
+            throws InvalidKeySpecException {
+        token.ensureValid();
+        if (keySpec instanceof PKCS8EncodedKeySpec) {
+            try {
+                byte[] encoded = ((PKCS8EncodedKeySpec)keySpec).getEncoded();
+                PrivateKey key = new sun.security.provider.DSAPrivateKey(encoded);
+                return implTranslatePrivateKey(key);
+            } catch (GeneralSecurityException e) {
+                throw new InvalidKeySpecException
+                        ("Could not create DSA private key", e);
+            }
+        }
+        if (keySpec instanceof DSAPrivateKeySpec == false) {
+            throw new InvalidKeySpecException("Only DSAPrivateKeySpec and "
+                + "PKCS8EncodedKeySpec supported for DSA private keys");
+        }
+        try {
+            DSAPrivateKeySpec ds = (DSAPrivateKeySpec)keySpec;
+            return generatePrivate(
+                ds.getX(),
+                ds.getP(),
+                ds.getQ(),
+                ds.getG()
+            );
+        } catch (PKCS11Exception e) {
+            throw new InvalidKeySpecException
+                ("Could not create DSA private key", e);
+        }
+    }
+
+    private PublicKey generatePublic(BigInteger y, BigInteger p, BigInteger q,
+            BigInteger g) throws PKCS11Exception {
+        CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
+            new CK_ATTRIBUTE(CKA_CLASS, CKO_PUBLIC_KEY),
+            new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_DSA),
+            new CK_ATTRIBUTE(CKA_VALUE, y),
+            new CK_ATTRIBUTE(CKA_PRIME, p),
+            new CK_ATTRIBUTE(CKA_SUBPRIME, q),
+            new CK_ATTRIBUTE(CKA_BASE, g),
+        };
+        attributes = token.getAttributes
+                (O_IMPORT, CKO_PUBLIC_KEY, CKK_DSA, attributes);
+        Session session = null;
+        try {
+            session = token.getObjSession();
+            long keyID = token.p11.C_CreateObject(session.id(), attributes);
+            return P11Key.publicKey
+                (session, keyID, "DSA", p.bitLength(), attributes);
+        } finally {
+            token.releaseSession(session);
+        }
+    }
+
+    private PrivateKey generatePrivate(BigInteger x, BigInteger p,
+            BigInteger q, BigInteger g) throws PKCS11Exception {
+        CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
+            new CK_ATTRIBUTE(CKA_CLASS, CKO_PRIVATE_KEY),
+            new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_DSA),
+            new CK_ATTRIBUTE(CKA_VALUE, x),
+            new CK_ATTRIBUTE(CKA_PRIME, p),
+            new CK_ATTRIBUTE(CKA_SUBPRIME, q),
+            new CK_ATTRIBUTE(CKA_BASE, g),
+        };
+        attributes = token.getAttributes
+                (O_IMPORT, CKO_PRIVATE_KEY, CKK_DSA, attributes);
+        Session session = null;
+        try {
+            session = token.getObjSession();
+            long keyID = token.p11.C_CreateObject(session.id(), attributes);
+            return P11Key.privateKey
+                (session, keyID, "DSA", p.bitLength(), attributes);
+        } finally {
+            token.releaseSession(session);
+        }
+    }
+
+    <T extends KeySpec> T implGetPublicKeySpec(P11Key key, Class<T> keySpec,
+            Session[] session) throws PKCS11Exception, InvalidKeySpecException {
+        if (DSAPublicKeySpec.class.isAssignableFrom(keySpec)) {
+            session[0] = token.getObjSession();
+            CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
+                new CK_ATTRIBUTE(CKA_VALUE),
+                new CK_ATTRIBUTE(CKA_PRIME),
+                new CK_ATTRIBUTE(CKA_SUBPRIME),
+                new CK_ATTRIBUTE(CKA_BASE),
+            };
+            token.p11.C_GetAttributeValue(session[0].id(), key.keyID, attributes);
+            KeySpec spec = new DSAPublicKeySpec(
+                attributes[0].getBigInteger(),
+                attributes[1].getBigInteger(),
+                attributes[2].getBigInteger(),
+                attributes[3].getBigInteger()
+            );
+            return keySpec.cast(spec);
+        } else { // X.509 handled in superclass
+            throw new InvalidKeySpecException("Only DSAPublicKeySpec and "
+                + "X509EncodedKeySpec supported for DSA public keys");
+        }
+    }
+
+    <T extends KeySpec> T implGetPrivateKeySpec(P11Key key, Class<T> keySpec,
+            Session[] session) throws PKCS11Exception, InvalidKeySpecException {
+        if (DSAPrivateKeySpec.class.isAssignableFrom(keySpec)) {
+            session[0] = token.getObjSession();
+            CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
+                new CK_ATTRIBUTE(CKA_VALUE),
+                new CK_ATTRIBUTE(CKA_PRIME),
+                new CK_ATTRIBUTE(CKA_SUBPRIME),
+                new CK_ATTRIBUTE(CKA_BASE),
+            };
+            token.p11.C_GetAttributeValue(session[0].id(), key.keyID, attributes);
+            KeySpec spec = new DSAPrivateKeySpec(
+                attributes[0].getBigInteger(),
+                attributes[1].getBigInteger(),
+                attributes[2].getBigInteger(),
+                attributes[3].getBigInteger()
+            );
+            return keySpec.cast(spec);
+        } else { // PKCS#8 handled in superclass
+            throw new InvalidKeySpecException("Only DSAPrivateKeySpec "
+                + "and PKCS8EncodedKeySpec supported for DSA private keys");
+        }
+    }
+
+    KeyFactory implGetSoftwareFactory() throws GeneralSecurityException {
+        return KeyFactory.getInstance("DSA", P11Util.getSunProvider());
+    }
+
+}