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## org.apache.poi.poifs.crypt.binaryrc4
Class BinaryRC4Encryptor

    java.lang.Object
      org.apache.poi.poifs.crypt.Encryptor
          org.apache.poi.poifs.crypt.binaryrc4.BinaryRC4Encryptor

All Implemented Interfaces:
  java.lang.Cloneable

    public class BinaryRC4Encryptor

extends Encryptor
implements java.lang.Cloneable

Nested Class Summary
`protected class` | `BinaryRC4Encryptor.BinaryRC4CipherOutputStream`

Field Summary

Fields inherited from class org.apache.poi.poifs.crypt.Encryptor
`DEFAULT_POIFS_ENTRY`

Constructor Summary
`protected` | `BinaryRC4Encryptor()`

Method Summary
`BinaryRC4Encryptor` | `clone()`
`void` | `confirmPassword(java.lang.String password)`
`void` | `confirmPassword(java.lang.String password, byte[] keySpec, byte[] keySalt, byte[] verifier, byte[] verifierSalt, byte[] integritySalt)`
`protected void` | `createEncryptionInfoEntry(DirectoryNode dir)`
`java.io.OutputStream` | `getDataStream(DirectoryNode dir)` Return a output stream for encrypted data.
`BinaryRC4Encryptor.BinaryRC4CipherOutputStream` | `getDataStream(java.io.OutputStream stream, int initialOffset)`
`protected int` | `getKeySizeInBytes()`
`void` | `setChunkSize(int chunkSize)` Sets the chunk size of the data stream.

Methods inherited from class org.apache.poi.poifs.crypt.Encryptor
`getDataStream, getDataStream, getDataStream, getEncryptionInfo, getInstance, getSecretKey, setEncryptionInfo, setSecretKey`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### BinaryRC4Encryptor

    protected BinaryRC4Encryptor()

Method Detail

### confirmPassword

    public void confirmPassword(java.lang.String password)

  Specified by:
    `confirmPassword` in class `Encryptor`

### confirmPassword

    public void confirmPassword(java.lang.String password,
                                byte[] keySpec,
                                byte[] keySalt,
                                byte[] verifier,
                                byte[] verifierSalt,
                                byte[] integritySalt)

  Specified by:
    `confirmPassword` in class `Encryptor`

### getDataStream

    public java.io.OutputStream getDataStream(DirectoryNode dir)
                                       throws java.io.IOException,
                                              java.security.GeneralSecurityException

  Description copied from class: `Encryptor`
  Return a output stream for encrypted data.

  Specified by:
    `getDataStream` in class `Encryptor`
  Parameters:
    `dir` - the node to write to
  Returns:
    encrypted stream
  Throws:
    `java.io.IOException`
    `java.security.GeneralSecurityException`

### getDataStream

    public BinaryRC4Encryptor.BinaryRC4CipherOutputStream getDataStream(java.io.OutputStream stream,
                                                                        int initialOffset)
                                                                 throws java.io.IOException,
                                                                        java.security.GeneralSecurityException

  Overrides:
    `getDataStream` in class `Encryptor`
  Throws:
    `java.io.IOException`
    `java.security.GeneralSecurityException`

### getKeySizeInBytes

    protected int getKeySizeInBytes()

### createEncryptionInfoEntry

    protected void createEncryptionInfoEntry(DirectoryNode dir)
                                      throws java.io.IOException

  Throws:
    `java.io.IOException`

### setChunkSize

    public void setChunkSize(int chunkSize)

  Description copied from class: `Encryptor`
  Sets the chunk size of the data stream. Needs to be set before the data stream is requested. When not set, the implementation uses method specific default values

  Overrides:
    `setChunkSize` in class `Encryptor`
  Parameters:
    `chunkSize` - the chunk size, i.e. the block size with the same encryption key

### clone

    public BinaryRC4Encryptor clone()
                             throws java.lang.CloneNotSupportedException

  Overrides:
    `clone` in class `Encryptor`
  Throws:
    `java.lang.CloneNotSupportedException`

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Copyright 2017 The Apache Software Foundation or its licensors, as applicable.