Bouncy Castle Cryptography Library 1.37

org.bouncycastle.asn1
Class DERBitString

java.lang.Object
  extended by org.bouncycastle.asn1.ASN1Encodable
      extended by org.bouncycastle.asn1.DERObject
          extended by org.bouncycastle.asn1.ASN1Object
              extended by org.bouncycastle.asn1.DERBitString
All Implemented Interfaces:
DEREncodable, DERString, DERTags
Direct Known Subclasses:
KeyUsage, NetscapeCertType, PKIFailureInfo, ReasonFlags

public class DERBitString
extends ASN1Object
implements DERString


Field Summary
protected  byte[] data
           
protected  int padBits
           
 
Fields inherited from class org.bouncycastle.asn1.ASN1Encodable
BER, DER
 
Fields inherited from interface org.bouncycastle.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
protected  boolean asn1Equals(DERObject 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(java.lang.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
 java.lang.String getString()
           
 int hashCode()
           
 int intValue()
           
 java.lang.String toString()
           
 
Methods inherited from class org.bouncycastle.asn1.ASN1Object
equals, fromByteArray
 
Methods inherited from class org.bouncycastle.asn1.DERObject
toASN1Object
 
Methods inherited from class org.bouncycastle.asn1.ASN1Encodable
getDEREncoded, getDERObject, getEncoded, getEncoded
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, 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(java.lang.Object obj)
return a Bit String from the passed in object

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.
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 ASN1Object

asn1Equals

protected boolean asn1Equals(DERObject o)

getString

public java.lang.String getString()
Specified by:
getString in interface DERString

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object

Bouncy Castle Cryptography Library 1.37