BUG-1612 Remove ganymed implementation of SSH server wrapper.

[controller.git] / opendaylight / netconf / netconf-ssh / src / main / java / org / opendaylight / controller / netconf / ssh / authentication / PEMGenerator.java

diff --git a/opendaylight/netconf/netconf-ssh/src/main/java/org/opendaylight/controller/netconf/ssh/authentication/PEMGenerator.java b/opendaylight/netconf/netconf-ssh/src/main/java/org/opendaylight/controller/netconf/ssh/authentication/PEMGenerator.java
deleted file mode 100644 (file)
index 53ab821..0000000
--- a/opendaylight/netconf/netconf-ssh/src/main/java/org/opendaylight/controller/netconf/ssh/authentication/PEMGenerator.java
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-
-package org.opendaylight.controller.netconf.ssh.authentication;
-
-import com.google.common.annotations.VisibleForTesting;
-import java.io.FileInputStream;
-import java.security.NoSuchAlgorithmException;
-import org.apache.commons.io.FileUtils;
-import org.apache.commons.io.IOUtils;
-import org.bouncycastle.openssl.PEMWriter;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.File;
-import java.io.IOException;
-import java.io.StringWriter;
-import java.security.Key;
-import java.security.KeyPair;
-import java.security.KeyPairGenerator;
-import java.security.SecureRandom;
-
-public class PEMGenerator {
-    private static final Logger logger = LoggerFactory.getLogger(PEMGenerator.class);
-    private static final int KEY_SIZE = 4096;
-
-
-    public static String readOrGeneratePK(File privateKeyFile) throws IOException {
-        if (privateKeyFile.exists() == false) {
-            // generate & save to file
-            try {
-                return generateTo(privateKeyFile);
-            } catch (Exception e) {
-                logger.error("Exception occurred while generating PEM string to {}", privateKeyFile, e);
-                throw new IllegalStateException("Error generating RSA key from file " + privateKeyFile);
-            }
-        } else {
-            // read from file
-            try (FileInputStream fis = new FileInputStream(privateKeyFile)) {
-                return IOUtils.toString(fis);
-            } catch (final IOException e) {
-                logger.error("Error reading RSA key from file {}", privateKeyFile, e);
-                throw new IOException("Error reading RSA key from file " + privateKeyFile, e);
-            }
-        }
-    }
-
-    /**
-     * Generate private key to a file and return its content as string.
-     *
-     * @param privateFile path where private key should be generated
-     * @return String representation of private key
-     * @throws IOException
-     * @throws NoSuchAlgorithmException
-     */
-    @VisibleForTesting
-    public static String generateTo(File privateFile) throws IOException, NoSuchAlgorithmException {
-        logger.info("Generating private key to {}", privateFile.getAbsolutePath());
-        String privatePEM = generate();
-        FileUtils.write(privateFile, privatePEM);
-        return privatePEM;
-    }
-
-    @VisibleForTesting
-    public static String generate() throws NoSuchAlgorithmException, IOException {
-        KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
-        SecureRandom sr = new SecureRandom();
-        keyGen.initialize(KEY_SIZE, sr);
-        KeyPair keypair = keyGen.generateKeyPair();
-        return toString(keypair.getPrivate());
-    }
-
-    /**
-     * Get string representation of a key.
-     */
-    private static String toString(Key key) throws IOException {
-        try (StringWriter writer = new StringWriter()) {
-            try (PEMWriter pemWriter = new PEMWriter(writer)) {
-                pemWriter.writeObject(key);
-            }
-            return writer.toString();
-        }
-    }
-
-}