org.spongycastle.asn1

Class ASN1BitString

java.lang.Object

org.spongycastle.asn1.ASN1Object

org.spongycastle.asn1.ASN1Primitive

org.spongycastle.asn1.ASN1BitString

All Implemented Interfaces:

ASN1Encodable, ASN1String, Encodable

Direct Known Subclasses:

DERBitString, DLBitString

public abstract class ASN1BitString
extends ASN1Primitive
implements ASN1String

Base class for BIT STRING objects

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	data
protected int	padBits

Constructor Summary

Constructors

Constructor and Description
ASN1BitString(byte[] data, int padBits) Base constructor.

Method Summary

Modifier and Type	Method and Description
protected boolean	asn1Equals(ASN1Primitive o) Equality (similarity) comparison for two ASN1Primitive objects.
protected static byte[]	derForm(byte[] data, int padBits)
byte[]	getBytes()
protected static byte[]	getBytes(int bitString)
ASN1Primitive	getLoadedObject()
byte[]	getOctets() Return the octets contained in this BIT STRING, checking that this BIT STRING really does represent an octet aligned string.
int	getPadBits()
protected static int	getPadBits(int bitString)
java.lang.String	getString() Return a String representation of this BIT STRING
int	hashCode()
int	intValue()
java.lang.String	toString()

Methods inherited from class org.spongycastle.asn1.ASN1Primitive

equals, fromByteArray, toASN1Primitive

Methods inherited from class org.spongycastle.asn1.ASN1Object

getEncoded, getEncoded, hasEncodedTagValue, toASN1Object

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

data

protected final byte[] data

padBits

protected final int padBits

Constructor Detail

ASN1BitString

public ASN1BitString(byte[] data,
                     int padBits)

Base constructor.

Parameters:

data - the octets making up the bit string.

padBits - the number of extra bits at the end of the string.

Method Detail

getPadBits

protected static int getPadBits(int bitString)

Parameters:

bitString - an int containing the BIT STRING

Returns:

the correct number of pad bits for a bit string defined in a 32 bit constant

getBytes

protected static byte[] getBytes(int bitString)

Parameters:

bitString - an int containing the BIT STRING

Returns:

the correct number of bytes for a bit string defined in a 32 bit constant

getString

public java.lang.String getString()

Return a String representation of this BIT STRING

Specified by:

getString in interface ASN1String

Returns:

a String representation.

intValue

public int intValue()

Returns:

the value of the bit string as an int (truncating if necessary)

getOctets

public byte[] getOctets()

Return the octets contained in this BIT STRING, checking that this BIT STRING really does represent an octet aligned string. Only use this method when the standard you are following dictates that the BIT STRING will be octet aligned.

Returns:

a copy of the octet aligned data.

getBytes

public byte[] getBytes()

getPadBits

public int getPadBits()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in class ASN1Primitive

asn1Equals

protected boolean asn1Equals(ASN1Primitive o)

Description copied from class: ASN1Primitive

Equality (similarity) comparison for two ASN1Primitive objects.

derForm

protected static byte[] derForm(byte[] data,
                                int padBits)

getLoadedObject

public ASN1Primitive getLoadedObject()