8187443: Forest Consolidation: Move files to unified layout

Reviewed-by: darcy, ihse

src/java.base/share/classes/java/security/cert/Certificate.java

@@ -0,0 +1,304 @@
+/*
+ * Copyright (c) 1997, 2017, 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 java.security.cert;
+
+import java.util.Arrays;
+
+import java.security.Provider;
+import java.security.PublicKey;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
+import java.security.InvalidKeyException;
+import java.security.SignatureException;
+
+import sun.security.x509.X509CertImpl;
+
+/**
+ * <p>Abstract class for managing a variety of identity certificates.
+ * An identity certificate is a binding of a principal to a public key which
+ * is vouched for by another principal.  (A principal represents
+ * an entity such as an individual user, a group, or a corporation.)
+ * <p>
+ * This class is an abstraction for certificates that have different
+ * formats but important common uses.  For example, different types of
+ * certificates, such as X.509 and PGP, share general certificate
+ * functionality (like encoding and verifying) and
+ * some types of information (like a public key).
+ * <p>
+ * X.509, PGP, and SDSI certificates can all be implemented by
+ * subclassing the Certificate class, even though they contain different
+ * sets of information, and they store and retrieve the information in
+ * different ways.
+ *
+ * @see X509Certificate
+ * @see CertificateFactory
+ *
+ * @author Hemma Prafullchandra
+ * @since 1.2
+ */
+
+public abstract class Certificate implements java.io.Serializable {
+
+    private static final long serialVersionUID = -3585440601605666277L;
+
+    // the certificate type
+    private final String type;
+
+    /** Cache the hash code for the certiticate */
+    private int hash = -1; // Default to -1
+
+    /**
+     * Creates a certificate of the specified type.
+     *
+     * @param type the standard name of the certificate type.
+     * See the CertificateFactory section in the <a href=
+     * "{@docRoot}/../specs/security/standard-names.html#certificatefactory-types">
+     * Java Security Standard Algorithm Names Specification</a>
+     * for information about standard certificate types.
+     */
+    protected Certificate(String type) {
+        this.type = type;
+    }
+
+    /**
+     * Returns the type of this certificate.
+     *
+     * @return the type of this certificate.
+     */
+    public final String getType() {
+        return this.type;
+    }
+
+    /**
+     * Compares this certificate for equality with the specified
+     * object. If the {@code other} object is an
+     * {@code instanceof} {@code Certificate}, then
+     * its encoded form is retrieved and compared with the
+     * encoded form of this certificate.
+     *
+     * @param other the object to test for equality with this certificate.
+     * @return true iff the encoded forms of the two certificates
+     * match, false otherwise.
+     */
+    public boolean equals(Object other) {
+        if (this == other) {
+            return true;
+        }
+        if (!(other instanceof Certificate)) {
+            return false;
+        }
+        try {
+            byte[] thisCert = X509CertImpl.getEncodedInternal(this);
+            byte[] otherCert = X509CertImpl.getEncodedInternal((Certificate)other);
+
+            return Arrays.equals(thisCert, otherCert);
+        } catch (CertificateException e) {
+            return false;
+        }
+    }
+
+    /**
+     * Returns a hashcode value for this certificate from its
+     * encoded form.
+     *
+     * @return the hashcode value.
+     */
+    public int hashCode() {
+        int h = hash;
+        if (h == -1) {
+            try {
+                h = Arrays.hashCode(X509CertImpl.getEncodedInternal(this));
+            } catch (CertificateException e) {
+                h = 0;
+            }
+            hash = h;
+        }
+        return h;
+    }
+
+    /**
+     * Returns the encoded form of this certificate. It is
+     * assumed that each certificate type would have only a single
+     * form of encoding; for example, X.509 certificates would
+     * be encoded as ASN.1 DER.
+     *
+     * @return the encoded form of this certificate
+     *
+     * @exception CertificateEncodingException if an encoding error occurs.
+     */
+    public abstract byte[] getEncoded()
+        throws CertificateEncodingException;
+
+    /**
+     * Verifies that this certificate was signed using the
+     * private key that corresponds to the specified public key.
+     *
+     * @param key the PublicKey used to carry out the verification.
+     *
+     * @exception NoSuchAlgorithmException on unsupported signature
+     * algorithms.
+     * @exception InvalidKeyException on incorrect key.
+     * @exception NoSuchProviderException if there's no default provider.
+     * @exception SignatureException on signature errors.
+     * @exception CertificateException on encoding errors.
+     */
+    public abstract void verify(PublicKey key)
+        throws CertificateException, NoSuchAlgorithmException,
+        InvalidKeyException, NoSuchProviderException,
+        SignatureException;
+
+    /**
+     * Verifies that this certificate was signed using the
+     * private key that corresponds to the specified public key.
+     * This method uses the signature verification engine
+     * supplied by the specified provider.
+     *
+     * @param key the PublicKey used to carry out the verification.
+     * @param sigProvider the name of the signature provider.
+     *
+     * @exception NoSuchAlgorithmException on unsupported signature
+     * algorithms.
+     * @exception InvalidKeyException on incorrect key.
+     * @exception NoSuchProviderException on incorrect provider.
+     * @exception SignatureException on signature errors.
+     * @exception CertificateException on encoding errors.
+     */
+    public abstract void verify(PublicKey key, String sigProvider)
+        throws CertificateException, NoSuchAlgorithmException,
+        InvalidKeyException, NoSuchProviderException,
+        SignatureException;
+
+    /**
+     * Verifies that this certificate was signed using the
+     * private key that corresponds to the specified public key.
+     * This method uses the signature verification engine
+     * supplied by the specified provider. Note that the specified
+     * Provider object does not have to be registered in the provider list.
+     *
+     * <p> This method was added to version 1.8 of the Java Platform
+     * Standard Edition. In order to maintain backwards compatibility with
+     * existing service providers, this method cannot be {@code abstract}
+     * and by default throws an {@code UnsupportedOperationException}.
+     *
+     * @param key the PublicKey used to carry out the verification.
+     * @param sigProvider the signature provider.
+     *
+     * @exception NoSuchAlgorithmException on unsupported signature
+     * algorithms.
+     * @exception InvalidKeyException on incorrect key.
+     * @exception SignatureException on signature errors.
+     * @exception CertificateException on encoding errors.
+     * @exception UnsupportedOperationException if the method is not supported
+     * @since 1.8
+     */
+    public void verify(PublicKey key, Provider sigProvider)
+        throws CertificateException, NoSuchAlgorithmException,
+        InvalidKeyException, SignatureException {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns a string representation of this certificate.
+     *
+     * @return a string representation of this certificate.
+     */
+    public abstract String toString();
+
+    /**
+     * Gets the public key from this certificate.
+     *
+     * @return the public key.
+     */
+    public abstract PublicKey getPublicKey();
+
+    /**
+     * Alternate Certificate class for serialization.
+     * @since 1.3
+     */
+    protected static class CertificateRep implements java.io.Serializable {
+
+        private static final long serialVersionUID = -8563758940495660020L;
+
+        private String type;
+        private byte[] data;
+
+        /**
+         * Construct the alternate Certificate class with the Certificate
+         * type and Certificate encoding bytes.
+         *
+         * @param type the standard name of the Certificate type.
+         *
+         * @param data the Certificate data.
+         */
+        protected CertificateRep(String type, byte[] data) {
+            this.type = type;
+            this.data = data;
+        }
+
+        /**
+         * Resolve the Certificate Object.
+         *
+         * @return the resolved Certificate Object
+         *
+         * @throws java.io.ObjectStreamException if the Certificate
+         *      could not be resolved
+         */
+        protected Object readResolve() throws java.io.ObjectStreamException {
+            try {
+                CertificateFactory cf = CertificateFactory.getInstance(type);
+                return cf.generateCertificate
+                        (new java.io.ByteArrayInputStream(data));
+            } catch (CertificateException e) {
+                throw new java.io.NotSerializableException
+                                ("java.security.cert.Certificate: " +
+                                type +
+                                ": " +
+                                e.getMessage());
+            }
+        }
+    }
+
+    /**
+     * Replace the Certificate to be serialized.
+     *
+     * @return the alternate Certificate object to be serialized
+     *
+     * @throws java.io.ObjectStreamException if a new object representing
+     * this Certificate could not be created
+     * @since 1.3
+     */
+    protected Object writeReplace() throws java.io.ObjectStreamException {
+        try {
+            return new CertificateRep(type, getEncoded());
+        } catch (CertificateException e) {
+            throw new java.io.NotSerializableException
+                                ("java.security.cert.Certificate: " +
+                                type +
+                                ": " +
+                                e.getMessage());
+        }
+    }
+}