Package org.apache.sshd.common.util.io.der

Class DERWriter

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

org.apache.sshd.common.util.io.der.DERWriter

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class DERWriter
extends FilterOutputStream

A bare-minimum DER encoder - just enough so we can encoder signatures and keys data

Author:

Apache MINA SSHD Project

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor	Description
DERWriter()
DERWriter(int initialSize)
DERWriter(OutputStream stream)

Method Summary

Modifier and Type	Method	Description
DERWriter	startSequence()
byte[]	toByteArray()
void	writeBigInteger(byte... bytes)	The integer is always considered to be positive, so if the first byte is < 0, we pad with a zero to make it positive
void	writeBigInteger(byte[] bytes, int off, int len)	The integer is always considered to be positive, so if the first byte is < 0, we pad with a zero to make it positive
void	writeBigInteger(BigInteger value)
void	writeLength(int len)
void	writeObject(byte tag, int len, byte... data)
void	writeObject(ASN1Object obj)

Methods inherited from class java.io.FilterOutputStream

close, flush, write, write, write

Methods inherited from class java.io.OutputStream

nullOutputStream

Methods inherited from class java.lang.Object

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

Constructor Detail

DERWriter

public DERWriter()

DERWriter

public DERWriter(int initialSize)

DERWriter

public DERWriter(OutputStream stream)

Method Detail

startSequence

public DERWriter startSequence()

writeBigInteger

public void writeBigInteger(BigInteger value)
                     throws IOException

Throws:

IOException

writeBigInteger

public void writeBigInteger(byte... bytes)
                     throws IOException

The integer is always considered to be positive, so if the first byte is < 0, we pad with a zero to make it positive

Parameters:

bytes - BigInteger bytes

Throws:

IOException - If failed to write the bytes

writeBigInteger

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

The integer is always considered to be positive, so if the first byte is < 0, we pad with a zero to make it positive

Parameters:

bytes - BigInteger bytes

off - Offset in bytes data

len - Number of bytes to write

Throws:

IOException - If failed to write the bytes

writeObject

public void writeObject(ASN1Object obj)
                 throws IOException

Throws:

IOException

writeObject

public void writeObject(byte tag,
                        int len,
                        byte... data)
                 throws IOException

Throws:

IOException

writeLength

public void writeLength(int len)
                 throws IOException

Throws:

IOException

toByteArray

public byte[] toByteArray()
                   throws IOException

Throws:

IOException