public final class

DerInputStream

extends BerInputStream

java.lang.Object
↳	com.microstrategy.utils.BerInputStream
	↳	com.microstrategy.utils.DerInputStream

Class Overview

Decodes ASN.1 types encoded with DER (X.690)

Summary

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Inherited Constants

From class com.microstrategy.utils.BerInputStream

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Inherited Fields

From class com.microstrategy.utils.BerInputStream

protected byte[]	buffer	Internal buffer for storing encoded array
public int	choiceIndex	The last choice index
public Object	content	Current decoded content
protected int	contentOffset	Current decoded content offset
protected InputStream	in	Associated `InputStream`
protected boolean	isIndefinedLength	Indicates defined or indefined reading mode for associated InputStream.
protected boolean	isVerify	Indicates verify or store mode.
protected int	length	Current decoded length
protected int	offset	The position in the buffer.
public int	oidElement
public int	tag	Current decoded tag
protected int	tagOffset	Current decoded tag offset
public int[]	times	Keeps last decoded: year, month, day, hour, minute, second, millisecond

Public Constructors
	DerInputStream(InputStream in)

Public Methods
final int	next() Decodes next encoded type.
void	readOctetString() Decodes ASN.1 Octetstring type

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Inherited Methods

From class com.microstrategy.utils.BerInputStream

void	compactBuffer() Reallocates the buffer in order to make it exactly the size of data it contains
Object	get(Object key)
final byte[]	getBuffer() Returns internal buffer used for decoding
final int	getContentOffset()
byte[]	getEncoded() Returns encoded array.
final int	getEndOffset() Returns end offset for the current encoded type
final int	getLength() Returns length of the current content for decoding
static int	getLength(byte[] encoding) Returns the length of the encoding
final int	getOffset() Returns the current offset
final int	getTagOffset() Returns start offset for the current encoded type
int	next() Decodes next encoded type.
void	put(Object key, Object entry)
int	read() Reads the next encoded byte from the encoded input stream.
void	readBitString() Decodes ASN.1 bitstring type
void	readBoolean() Decodes ASN.1 boolean type
void	readContent() Reads the next encoded content from the encoded input stream.
void	readEnumerated() Decodes ASN.1 Enumerated type
void	readOID() Decodes ASN.1 ObjectIdentifier type
void	readOctetString() Decodes ASN.1 Octetstring type
final void	setVerify() Sets verify mode.

From class java.lang.Object

Public Constructors

public DerInputStream (InputStream in)

Throws

IOException

Public Methods

public final int next ()

Decodes next encoded type. Initializes tag, length, tagOffset and contentOffset variables

Returns

next decoded tag

Throws

IOException

public void readOctetString ()

Decodes ASN.1 Octetstring type

Throws

IOException

Interfaces

Classes

Exceptions

DerInputStream

Class Overview

Summary

Public Constructors

public DerInputStream (InputStream in)

Throws

Public Methods

public final int next ()

Returns

Throws

See Also

public void readOctetString ()

Throws

See Also