public final Class MacOutputStream

Class Inheritance

extends OutputStream

java.lang.Object
java.io.OutputStream
org.bouncycastle.jcajce.io.MacOutputStream

Imports

java.io.IOException, .OutputStream, javax.crypto.Mac

An output stream which calculates a MAC based on the data that is written to it.

Field Summary

Modifier and Type	Field and Description
private Mac	mac

Constructor Summary

Access	Constructor and Description
public	MacOutputStream(Mac the MAC implementation to use as the basis of the stream. mac) Base constructor - specify the MAC algorithm to use.

Method Summary

Modifier and Type	Method and Description
public byte[]	Returns: the MAC calculated from the output written to the stream. getMac() Execute doFinal() and return the calculated MAC.
public void	write(int the byte value to write. b) Implements abstract java.io.OutputStream.write. Write a single byte to the stream.
public void	write(byte[] byte array holding the data. bytes, int offset into bytes that the data starts at. off, int the length of the data block to write. len) Overrides java.io.OutputStream.write. Write a block of data of length len starting at offset off in the byte array bytes to the stream.

Inherited from java.io.OutputStream:: close flush nullOutputStream write

Field Detail

mac	back to summary
private Mac mac

Constructor Detail

MacOutputStream	back to summary
public MacOutputStream(Mac mac) Base constructor - specify the MAC algorithm to use. Parameters mac:Mac the MAC implementation to use as the basis of the stream.

MacOutputStream

back to summary

public MacOutputStream(Mac mac)

Base constructor - specify the MAC algorithm to use.

Parameters

mac:Mac: the MAC implementation to use as the basis of the stream.

Method Detail

getMac	back to summary
public byte[] getMac() Execute doFinal() and return the calculated MAC. Returns:byte[] the MAC calculated from the output written to the stream.

getMac

back to summary

public byte[] getMac()

Execute doFinal() and return the calculated MAC.

Returns:byte[]: the MAC calculated from the output written to the stream.

write	back to summary
public void write(int b) throws IOException Implements abstract java.io.OutputStream.write. Write a single byte to the stream. Parameters b:int the byte value to write. Exceptions IOException: in case of failure.

write

back to summary

public void write(int b) throws IOException

Implements abstract java.io.OutputStream.write.

Write a single byte to the stream.

Parameters

b:int: the byte value to write.

Exceptions

IOException:: in case of failure.

write	back to summary
public void write(byte[] bytes, int off, int len) throws IOException Overrides java.io.OutputStream.write. Write a block of data of length len starting at offset off in the byte array bytes to the stream. Parameters bytes:byte[] byte array holding the data. off:int offset into bytes that the data starts at. len:int the length of the data block to write. Exceptions IOException: in case of failure.

write

back to summary

public void write(byte[] bytes, int off, int len) throws IOException

Overrides java.io.OutputStream.write.

Write a block of data of length len starting at offset off in the byte array bytes to the stream.

Parameters

bytes:byte[]: byte array holding the data.
off:int: offset into bytes that the data starts at.
len:int: the length of the data block to write.

Exceptions

IOException:: in case of failure.