org.apache.poi.poifs.crypt.cryptoapi

Class CryptoAPIEncryptor.CryptoAPICipherOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

org.apache.poi.poifs.crypt.ChunkedCipherOutputStream

org.apache.poi.poifs.crypt.cryptoapi.CryptoAPIEncryptor.CryptoAPICipherOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

Enclosing class:

CryptoAPIEncryptor

protected class CryptoAPIEncryptor.CryptoAPICipherOutputStream
extends ChunkedCipherOutputStream

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Method Summary

Modifier and Type	Method and Description
protected void	calculateChecksum(File file, int i)
protected void	createEncryptionInfoEntry(DirectoryNode dir, File tmpFile)
void	flush()
protected Cipher	initCipherForBlock(Cipher cipher, int block, boolean lastChunk)
protected Cipher	initCipherForBlockNoFlush(Cipher existing, int block, boolean lastChunk)

Methods inherited from class org.apache.poi.poifs.crypt.ChunkedCipherOutputStream

close, getChunk, getChunkMask, getPlainByteFlags, getPos, getTotalPos, initCipherForBlock, invokeCipher, setNextRecordSize, write, write, write, write, writeChunk, writePlain

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

initCipherForBlock

protected Cipher initCipherForBlock(Cipher cipher,
                                    int block,
                                    boolean lastChunk)
                             throws IOException,
                                    GeneralSecurityException

Specified by:

initCipherForBlock in class ChunkedCipherOutputStream

Throws:

IOException

GeneralSecurityException

initCipherForBlockNoFlush

protected Cipher initCipherForBlockNoFlush(Cipher existing,
                                           int block,
                                           boolean lastChunk)
                                    throws GeneralSecurityException

Overrides:

initCipherForBlockNoFlush in class ChunkedCipherOutputStream

Throws:

GeneralSecurityException

calculateChecksum

protected void calculateChecksum(File file,
                                 int i)

Specified by:

calculateChecksum in class ChunkedCipherOutputStream

createEncryptionInfoEntry

protected void createEncryptionInfoEntry(DirectoryNode dir,
                                         File tmpFile)

Specified by:

createEncryptionInfoEntry in class ChunkedCipherOutputStream

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Overrides:

flush in class FilterOutputStream

Throws:

IOException