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/*
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 * Licensed to the Apache Software Foundation (ASF) under one
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 * or more contributor license agreements.  See the NOTICE file
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 * distributed with this work for additional information
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 * regarding copyright ownership.  The ASF licenses this file
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 * to you under the Apache License, Version 2.0 (the
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 * "License"); you may not use this file except in compliance
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 * with the License.  You may obtain a copy of the License at
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 *
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing,
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 * software distributed under the License is distributed on an
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 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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 * KIND, either express or implied.  See the License for the
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 * specific language governing permissions and limitations
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 * under the License.
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 */
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package org.apache.sshd.agent;
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import java.io.IOException;
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import java.security.KeyPair;
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import java.security.PublicKey;
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import java.util.List;
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/**
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 * SSH key agent server
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 */
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public interface SshAgent {
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    public static final String SSH_AUTHSOCKET_ENV_NAME = "SSH_AUTH_SOCK";
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    public static class Pair<U,V> {
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        private final U first;
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        private final V second;
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        public Pair(U first, V second) {
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            this.first = first;
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            this.second = second;
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        }
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        public U getFirst() {
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            return first;
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        }
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        public V getSecond() {
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            return second;
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        }
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    }
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    List<Pair<PublicKey, String>> getIdentities() throws IOException;
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    byte[] sign(PublicKey key, byte[] data) throws IOException;
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    void addIdentity(KeyPair key, String comment) throws IOException;
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    void removeIdentity(PublicKey key) throws IOException;
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    void removeAllIdentities() throws IOException;
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    void close();
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}