--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/java/security/Signer.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 1996, 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;
+
+import java.io.*;
+
+/**
+ * This class is used to represent an Identity that can also digitally
+ * sign data.
+ *
+ * <p>The management of a signer's private keys is an important and
+ * sensitive issue that should be handled by subclasses as appropriate
+ * to their intended use.
+ *
+ * @see Identity
+ *
+ * @author Benjamin Renaud
+ * @since 1.1
+ *
+ * @deprecated This class is no longer used. Its functionality has been
+ * replaced by {@code java.security.KeyStore}, the
+ * {@code java.security.cert} package, and
+ * {@code java.security.Principal}.
+ */
+@Deprecated(since="1.2")
+public abstract class Signer extends Identity {
+
+    private static final long serialVersionUID = -1763464102261361480L;
+
+    /**
+     * The signer's private key.
+     *
+     * @serial
+     */
+    private PrivateKey privateKey;
+
+    /**
+     * Creates a signer. This constructor should only be used for
+     * serialization.
+     */
+    protected Signer() {
+        super();
+    }
+
+
+    /**
+     * Creates a signer with the specified identity name.
+     *
+     * @param name the identity name.
+     */
+    public Signer(String name) {
+        super(name);
+    }
+
+    /**
+     * Creates a signer with the specified identity name and scope.
+     *
+     * @param name the identity name.
+     *
+     * @param scope the scope of the identity.
+     *
+     * @exception KeyManagementException if there is already an identity
+     * with the same name in the scope.
+     */
+    public Signer(String name, IdentityScope scope)
+    throws KeyManagementException {
+        super(name, scope);
+    }
+
+    /**
+     * Returns this signer's private key.
+     *
+     * <p>First, if there is a security manager, its {@code checkSecurityAccess}
+     * method is called with {@code "getSignerPrivateKey"}
+     * as its argument to see if it's ok to return the private key.
+     *
+     * @return this signer's private key, or null if the private key has
+     * not yet been set.
+     *
+     * @exception  SecurityException  if a security manager exists and its
+     * {@code checkSecurityAccess} method doesn't allow
+     * returning the private key.
+     *
+     * @see SecurityManager#checkSecurityAccess
+     */
+    public PrivateKey getPrivateKey() {
+        check("getSignerPrivateKey");
+        return privateKey;
+    }
+
+   /**
+     * Sets the key pair (public key and private key) for this signer.
+     *
+     * <p>First, if there is a security manager, its {@code checkSecurityAccess}
+     * method is called with {@code "setSignerKeyPair"}
+     * as its argument to see if it's ok to set the key pair.
+     *
+     * @param pair an initialized key pair.
+     *
+     * @exception InvalidParameterException if the key pair is not
+     * properly initialized.
+     * @exception KeyException if the key pair cannot be set for any
+     * other reason.
+     * @exception  SecurityException  if a security manager exists and its
+     * {@code checkSecurityAccess} method doesn't allow
+     * setting the key pair.
+     *
+     * @see SecurityManager#checkSecurityAccess
+     */
+    public final void setKeyPair(KeyPair pair)
+    throws InvalidParameterException, KeyException {
+        check("setSignerKeyPair");
+        final PublicKey pub = pair.getPublic();
+        PrivateKey priv = pair.getPrivate();
+
+        if (pub == null || priv == null) {
+            throw new InvalidParameterException();
+        }
+        try {
+            AccessController.doPrivileged(
+                new PrivilegedExceptionAction<>() {
+                public Void run() throws KeyManagementException {
+                    setPublicKey(pub);
+                    return null;
+                }
+            });
+        } catch (PrivilegedActionException pae) {
+            throw (KeyManagementException) pae.getException();
+        }
+        privateKey = priv;
+    }
+
+    String printKeys() {
+        String keys = "";
+        PublicKey publicKey = getPublicKey();
+        if (publicKey != null && privateKey != null) {
+            keys = "\tpublic and private keys initialized";
+
+        } else {
+            keys = "\tno keys";
+        }
+        return keys;
+    }
+
+    /**
+     * Returns a string of information about the signer.
+     *
+     * @return a string of information about the signer.
+     */
+    public String toString() {
+        return "[Signer]" + super.toString();
+    }
+
+    private static void check(String directive) {
+        SecurityManager security = System.getSecurityManager();
+        if (security != null) {
+            security.checkSecurityAccess(directive);
+        }
+    }
+
+}