Package org.bouncycastle.asn1.x509

Class KeyUsage

java.lang.Object

org.bouncycastle.asn1.ASN1Object

org.bouncycastle.asn1.x509.KeyUsage

All Implemented Interfaces:

ASN1Encodable

public class KeyUsage
extends ASN1Object

The KeyUsage object.

    id-ce-keyUsage OBJECT IDENTIFIER ::=  { id-ce 15 }

    KeyUsage ::= BIT STRING {
         digitalSignature        (0),
         nonRepudiation          (1),
         keyEncipherment         (2),
         dataEncipherment        (3),
         keyAgreement            (4),
         keyCertSign             (5),
         cRLSign                 (6),
         encipherOnly            (7),
         decipherOnly            (8) }
 

Field Summary

Fields

Modifier and Type	Field	Description
static int	cRLSign
static int	dataEncipherment
static int	decipherOnly
static int	digitalSignature
static int	encipherOnly
static int	keyAgreement
static int	keyCertSign
static int	keyEncipherment
static int	nonRepudiation

Constructor Summary

Constructors

Constructor	Description
KeyUsage(int usage)	Basic constructor.

Method Summary

Modifier and Type	Method	Description
static KeyUsage	fromExtensions(Extensions extensions)
byte[]	getBytes()
static KeyUsage	getInstance(Object obj)
int	getPadBits()
ASN1Primitive	toASN1Primitive()
String	toString()	Returns a string containing a concise, human-readable description of this object.

Methods inherited from class org.bouncycastle.asn1.ASN1Object

equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode, toASN1Object

Methods inherited from class java.lang.Object

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

Field Details

digitalSignature

public static final int digitalSignature

See Also:

Constant Field Values

nonRepudiation

public static final int nonRepudiation

See Also:

Constant Field Values

keyEncipherment

public static final int keyEncipherment

See Also:

Constant Field Values

dataEncipherment

public static final int dataEncipherment

See Also:

Constant Field Values

keyAgreement

public static final int keyAgreement

See Also:

Constant Field Values

keyCertSign

public static final int keyCertSign

See Also:

Constant Field Values

cRLSign

public static final int cRLSign

See Also:

Constant Field Values

encipherOnly

public static final int encipherOnly

See Also:

Constant Field Values

decipherOnly

public static final int decipherOnly

See Also:

Constant Field Values

Constructor Details

KeyUsage

public KeyUsage(int usage)

Basic constructor.

Parameters:

usage - - the bitwise OR of the Key Usage flags giving the allowed uses for the key. e.g. (KeyUsage.keyEncipherment | KeyUsage.dataEncipherment)

Method Details

getInstance

public static KeyUsage getInstance(Object obj)

fromExtensions

public static KeyUsage fromExtensions(Extensions extensions)

getBytes

public byte[] getBytes()

getPadBits

public int getPadBits()

toString

public String toString()

Description copied from class: Object

Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:

   getClass().getName() + '@' + Integer.toHexString(hashCode())

See Writing a useful toString method if you intend implementing your own toString method.

Overrides:

toString in class Object

Returns:

a printable representation of this object.

toASN1Primitive

public ASN1Primitive toASN1Primitive()

Specified by:

toASN1Primitive in interface ASN1Encodable

Specified by:

toASN1Primitive in class ASN1Object