org.apache.geronimo.crypto.asn1
Class DERBitString

java.lang.Object
  org.apache.geronimo.crypto.asn1.ASN1Encodable
      org.apache.geronimo.crypto.asn1.DERObject
          org.apache.geronimo.crypto.asn1.DERBitString

All Implemented Interfaces:

DEREncodable, DERString, DERTags

Direct Known Subclasses:

KeyUsage, NetscapeCertType, ReasonFlags

public class DERBitString
extends DERObject
implements DERString

Field Summary

protected byte[]	data
protected int	padBits

Fields inherited from interface org.apache.geronimo.crypto.asn1.DERTags

APPLICATION, BIT_STRING, BMP_STRING, BOOLEAN, CONSTRUCTED, ENUMERATED, EXTERNAL, GENERAL_STRING, GENERALIZED_TIME, GRAPHIC_STRING, IA5_STRING, INTEGER, NULL, NUMERIC_STRING, OBJECT_IDENTIFIER, OCTET_STRING, PRINTABLE_STRING, SEQUENCE, SEQUENCE_OF, SET, SET_OF, T61_STRING, TAGGED, UNIVERSAL_STRING, UTC_TIME, UTF8_STRING, VIDEOTEX_STRING, VISIBLE_STRING

Constructor Summary

	DERBitString(byte[] data)
	DERBitString(byte[] data, int padBits)
protected	DERBitString(byte data, int padBits)
	DERBitString(DEREncodable obj)

Method Summary

boolean	equals(Object o)
byte[]	getBytes()
protected static byte[]	getBytes(int bitString) return the correct number of bytes for a bit string defined in a 32 bit constant
static DERBitString	getInstance(ASN1TaggedObject obj, boolean explicit) return a Bit String from a tagged object.
static DERBitString	getInstance(Object obj) return a Bit String from the passed in object
int	getPadBits()
protected static int	getPadBits(int bitString) return the correct number of pad bits for a bit string defined in a 32 bit constant
String	getString()
int	hashCode()
int	intValue()

Methods inherited from class org.apache.geronimo.crypto.asn1.DERObject

toASN1Object

Methods inherited from class org.apache.geronimo.crypto.asn1.ASN1Encodable

getDERObject, getEncoded

Methods inherited from class java.lang.Object

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

Field Detail

data

protected byte[] data

padBits

protected 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(DEREncodable obj)

Method Detail

getPadBits

protected static int getPadBits(int bitString)

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

getBytes

protected static byte[] getBytes(int bitString)

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

getInstance

public static DERBitString getInstance(Object obj)

return a Bit String from the passed in object

Throws:

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.

Throws:

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 DERObject

equals

public boolean equals(Object o)

Specified by:

equals in class DERObject

getString

public String getString()

Specified by:

getString in interface DERString