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https://issues.apache.org/jira/browse/ORC-251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16542233#comment-16542233
 ] 

ASF GitHub Bot commented on ORC-251:
------------------------------------

Github user prasanthj commented on a diff in the pull request:

    https://github.com/apache/orc/pull/278#discussion_r202181381
  
    --- Diff: java/core/src/java/org/apache/orc/impl/CryptoUtils.java ---
    @@ -0,0 +1,77 @@
    +/*
    + * 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
    + * <p/>
    + * http://www.apache.org/licenses/LICENSE-2.0
    + * <p/>
    + * 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.orc.impl;
    +
    +import org.apache.orc.EncryptionAlgorithm;
    +import java.security.SecureRandom;
    +
    +/**
    + * This class has routines to work with encryption within ORC files.
    + */
    +public class CryptoUtils {
    +
    +  private static final int COLUMN_ID_LENGTH = 3;
    +  private static final int KIND_LENGTH = 2;
    +  private static final int STRIPE_ID_LENGTH = 3;
    +  private static final int MIN_COUNT_BYTES = 8;
    +
    +  private static final SecureRandom random = new SecureRandom();
    --- End diff --
    
    unused?


> Modify InStream and OutStream to optionally encrypt data
> --------------------------------------------------------
>
>                 Key: ORC-251
>                 URL: https://issues.apache.org/jira/browse/ORC-251
>             Project: ORC
>          Issue Type: Sub-task
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>            Priority: Major
>




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