org.bouncycastle.asn1

Class DERBitString

java.lang.Object

org.bouncycastle.asn1.ASN1Object

org.bouncycastle.asn1.ASN1Primitive

org.bouncycastle.asn1.DERBitString

All Implemented Interfaces:

ASN1Encodable, ASN1String, Encodable

Direct Known Subclasses:

NetscapeCertType, PKIFailureInfo, ReasonFlags

public class DERBitString
extends ASN1Primitive
implements ASN1String

Field Summary

Fields

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

Constructor Summary

Constructors

Modifier	Constructor and Description
	DERBitString(ASN1Encodable obj)
	DERBitString(byte[] data)
	DERBitString(byte[] data, int padBits)
protected	DERBitString(byte data, int padBits)
	DERBitString(int value)

Method Summary

Modifier and Type	Method and Description
protected boolean	asn1Equals(ASN1Primitive o)
byte[]	getBytes()
protected static byte[]	getBytes(int bitString)
static DERBitString	getInstance(ASN1TaggedObject obj, boolean explicit) return a Bit String from a tagged object.
static DERBitString	getInstance(java.lang.Object obj) return a Bit String from the passed in object
int	getPadBits()
protected static int	getPadBits(int bitString)
java.lang.String	getString() Return a Java String representation of this STRING type's content.
int	hashCode()
int	intValue()
java.lang.String	toString()

Methods inherited from class org.bouncycastle.asn1.ASN1Primitive

equals, fromByteArray, toASN1Primitive

Methods inherited from class org.bouncycastle.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

DERBitString

protected DERBitString(byte data,
                       int padBits)

DERBitString

public DERBitString(byte[] data,
                    int padBits)

Parameters:

data - the octets making up the bit string.

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

DERBitString

public DERBitString(byte[] data)

DERBitString

public DERBitString(int value)

DERBitString

public DERBitString(ASN1Encodable obj)
             throws java.io.IOException

Throws:

java.io.IOException

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

getInstance

public static DERBitString getInstance(java.lang.Object obj)

return a Bit String from the passed in object

Parameters:

obj - a DERBitString or an object that can be converted into one.

Returns:

a DERBitString instance, or null.

Throws:

java.lang.IllegalArgumentException - if the object cannot be converted.

getInstance

public static DERBitString getInstance(ASN1TaggedObject obj,
                                       boolean explicit)

return a Bit String from a tagged object.

Parameters:

obj - the tagged object holding the object we want

explicit - true if the object is meant to be explicitly tagged false otherwise.

Returns:

a DERBitString instance, or null.

Throws:

java.lang.IllegalArgumentException - if the tagged object cannot be converted.

getBytes

public byte[] getBytes()

getPadBits

public int getPadBits()

intValue

public int intValue()

Returns:

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

hashCode

public int hashCode()

Specified by:

hashCode in class ASN1Primitive

asn1Equals

protected boolean asn1Equals(ASN1Primitive o)

getString

public java.lang.String getString()

Description copied from interface: ASN1String

Return a Java String representation of this STRING type's content.

Specified by:

getString in interface ASN1String

Returns:

a Java String representation of this STRING.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object