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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.common;
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/**
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 * Interface used to compute digests, based on algorithms such as MD5 or SHA1.
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 *
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 * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
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 */
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public interface Digest {
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    void init() throws Exception;
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    int getBlockSize();
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    void update(byte[] foo, int start, int len) throws Exception;
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    byte[] digest() throws Exception;
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}