added SshKeyPairGenerator

core/src/main/java/org/jclouds/crypto/RsaSshKeyPairGenerator.java

@@ -0,0 +1,45 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.jclouds.crypto;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.security.SecureRandom;
+import java.util.Map;
+
+import javax.inject.Singleton;
+
+import com.google.inject.Inject;
+
+@Singleton
+public class RsaSshKeyPairGenerator implements SshKeyPairGenerator {
+   protected final Crypto crypto;
+   protected final SecureRandom secureRandom;
+
+   @Inject
+   public RsaSshKeyPairGenerator(Crypto crypto, SecureRandom secureRandom) {
+      this.crypto = checkNotNull(crypto, "crypto");
+      this.secureRandom = checkNotNull(secureRandom, "secureRandom");
+   }
+
+   @Override
+   public Map<String, String> get() {
+      return SshKeys.generate(crypto.rsaKeyPairGenerator(), secureRandom);
+   }
+}

core/src/main/java/org/jclouds/crypto/SshKeyPairGenerator.java

@@ -0,0 +1,36 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.jclouds.crypto;
+
+import java.util.Map;
+
+import com.google.common.base.Supplier;
+import com.google.inject.ImplementedBy;
+
+/**
+ * Creates a unique keypair without a passphrase. The resulting map has the following keys
+ * <ul>
+ * <li>public</li>
+ * <li>private</li>
+ * </ul>
+ */
+@ImplementedBy(RsaSshKeyPairGenerator.class)
+public interface SshKeyPairGenerator extends Supplier<Map<String, String>> {
+
+}

core/src/test/java/org/jclouds/crypto/RsaSshKeyPairGeneratorTest.java

@@ -0,0 +1,87 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.jclouds.crypto;
+
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.verify;
+import static org.jclouds.crypto.PemsTest.PRIVATE_KEY;
+import static org.jclouds.crypto.PemsTest.PUBLIC_KEY;
+import static org.testng.Assert.assertEquals;
+
+import java.io.IOException;
+import java.security.KeyFactory;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchAlgorithmException;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+import java.security.SecureRandom;
+import java.security.interfaces.RSAPublicKey;
+import java.security.spec.InvalidKeySpecException;
+
+import org.jclouds.io.Payloads;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.Test;
+
+import com.google.common.collect.ImmutableMap;
+
+/**
+ * @author Adrian Cole
+ */
+@Test(groups = "unit", testName = "RsaSshKeyPairGeneratorTest")
+public class RsaSshKeyPairGeneratorTest {
+   private static final String lineSeparator = System.getProperty("line.separator");
+
+   private KeyPair keyPair;
+   private String openSshKey;
+
+   @BeforeClass
+   public void setup() throws InvalidKeySpecException, NoSuchAlgorithmException, IOException {
+      KeyFactory keyfactory = KeyFactory.getInstance("RSA");
+      PrivateKey privateKey = keyfactory.generatePrivate(Pems.privateKeySpec(Payloads.newStringPayload(PRIVATE_KEY)));
+
+      PublicKey publicKey = keyfactory.generatePublic(Pems.publicKeySpec(Payloads.newStringPayload(PUBLIC_KEY)));
+
+      keyPair = new KeyPair(publicKey, privateKey);
+      openSshKey = SshKeys.encodeAsOpenSSH(RSAPublicKey.class.cast(publicKey));
+   }
+
+   @Test
+   public void testApply() {
+      Crypto crypto = createMock(Crypto.class);
+      KeyPairGenerator rsaKeyPairGenerator = createMock(KeyPairGenerator.class);
+      SecureRandom secureRandom = createMock(SecureRandom.class);
+
+      expect(crypto.rsaKeyPairGenerator()).andReturn(rsaKeyPairGenerator);
+      rsaKeyPairGenerator.initialize(2048, secureRandom);
+      expect(rsaKeyPairGenerator.genKeyPair()).andReturn(keyPair);
+
+      replay(crypto, rsaKeyPairGenerator, secureRandom);
+
+      RsaSshKeyPairGenerator supplier = new RsaSshKeyPairGenerator(crypto, secureRandom);
+
+      assertEquals(supplier.get(),
+               ImmutableMap.of("public", openSshKey, "private", PRIVATE_KEY.replaceAll("\n", lineSeparator)));
+
+      verify(crypto, rsaKeyPairGenerator, secureRandom);
+   }
+
+}