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java.lang.Objectjava.io.OutputStream
java.io.FilterOutputStream
javax.crypto.CipherOutputStream
public class CipherOutputStream
A filtered output stream that transforms data written to it with a
Cipher
before sending it to the underlying output stream.
Field Summary |
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Fields inherited from class java.io.FilterOutputStream |
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out |
Constructor Summary | |
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protected |
CipherOutputStream(OutputStream out)
Create a cipher output stream with no cipher. |
|
CipherOutputStream(OutputStream out,
Cipher cipher)
Create a new cipher output stream. |
Method Summary | |
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void |
close()
Close this output stream, and the sink output stream. |
void |
flush()
Flush any pending output. |
void |
write(byte[] buf)
Write a byte array to the output stream. |
void |
write(byte[] buf,
int off,
int len)
Write a portion of a byte array to the output stream. |
void |
write(int b)
Write a single byte to the output stream. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public CipherOutputStream(OutputStream out, Cipher cipher)
out
- The sink for transformed data.cipher
- The cipher to transform data with.protected CipherOutputStream(OutputStream out)
out
- The sink for transformed data.Method Detail |
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public void close() throws IOException
This method will first invoke the Cipher.doFinal()
method of the
underlying Cipher
, and writes the output of that method to the
sink output stream.
close
in interface Closeable
close
in class FilterOutputStream
IOException
- If an I/O error occurs, or if an error is caused by
finalizing the transformation.public void flush() throws IOException
flush
in interface Flushable
flush
in class FilterOutputStream
IOException
- If an I/O error occurs.public void write(int b) throws IOException
write
in class FilterOutputStream
b
- The next byte.
IOException
- If an I/O error occurs, or if the underlying cipher is
not in the correct state to transform data.public void write(byte[] buf) throws IOException
write
in class FilterOutputStream
buf
- The next bytes.
IOException
- If an I/O error occurs, or if the underlying cipher is
not in the correct state to transform data.public void write(byte[] buf, int off, int len) throws IOException
write
in class FilterOutputStream
buf
- The next bytes.off
- The offset in the byte array to start.len
- The number of bytes to write.
IOException
- If an I/O error occurs, or if the underlying cipher is
not in the correct state to transform data.
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