| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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.apache.sshd.agent; |
| |
| import java.io.IOException; |
| import java.security.KeyPair; |
| import java.security.PublicKey; |
| import java.util.Map; |
| |
| import org.apache.sshd.common.session.SessionContext; |
| |
| /** |
| * SSH key agent server |
| */ |
| public interface SshAgent extends java.nio.channels.Channel { |
| |
| String SSH_AUTHSOCKET_ENV_NAME = "SSH_AUTH_SOCK"; |
| |
| Iterable<? extends Map.Entry<PublicKey, String>> getIdentities() throws IOException; |
| |
| /** |
| * |
| * @param session The current {@link SessionContext} |
| * @param key The {@link PublicKey} to use for signing |
| * @param algo Recommended signature algorithm - if {@code null}/empty then one will be selected based on |
| * the key type and/or signature factories. <B>Note:</B> even if specific algorithm specified, |
| * the implementation may disregard and choose another |
| * @param data Data to sign |
| * @return used algorithm + signed data - using the identity |
| * @throws IOException If failed to sign |
| */ |
| Map.Entry<String, byte[]> sign(SessionContext session, PublicKey key, String algo, byte[] data) throws IOException; |
| |
| /** |
| * Used for reporting client-side public key authentication via agent |
| * |
| * @param key The {@link PublicKey} that is going to be used |
| * @return The {@link KeyPair} identity for it - if available - {@code null} otherwise |
| */ |
| default KeyPair resolveLocalIdentity(PublicKey key) { |
| return null; |
| } |
| |
| /** |
| * Adds a key to the agent. |
| * |
| * @param key {@link KeyPair} to add |
| * @param comment to associate with the key |
| * @param constraints {@link SshAgentKeyConstraint}s for this key to pass on to the agent |
| * @throws IOException if an error in the communication with the agent occurred, or the agent did not return a reply |
| * indicating successful addition of the key |
| */ |
| void addIdentity(KeyPair key, String comment, SshAgentKeyConstraint... constraints) throws IOException; |
| |
| void removeIdentity(PublicKey key) throws IOException; |
| |
| void removeAllIdentities() throws IOException; |
| } |