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oracle.security.crypto.cert.ext
Class KeyUsageExtension

java.lang.Object
oracle.security.crypto.cert.X509Extension
oracle.security.crypto.cert.ext.KeyUsageExtension

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, oracle.security.crypto.asn1.ASN1Object, oracle.security.crypto.util.Streamable

public class KeyUsageExtension

extends X509Extension

Represents the certificate Key Usage extension from RFC 2459. This extension SHOULD be critical.

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Serialized Form

Field Summary

static int	CRL_SIGN Key usage flag to be used in setUsageFlag(int).
static int	DATA_ENCIPHERMENT Key usage flag to be used in setUsageFlag(int).
static int	DECIPHER_ONLY Key usage flag to be used in setUsageFlag(int).
static int	DIGITAL_SIGNATURE Key usage flag to be used in setUsageFlag(int).
static int	ENCIPHER_ONLY Key usage flag to be used in setUsageFlag(int).
static int	KEY_AGREEMENT Key usage flag to be used in setUsageFlag(int).
static int	KEY_CERT_SIGN Key usage flag to be used in setUsageFlag(int).
static int	KEY_ENCIPHERMENT Key usage flag to be used in setUsageFlag(int).
static int	NON_REPUDIATION Key usage flag to be used in setUsageFlag(int).

Fields inherited from class oracle.security.crypto.cert.X509Extension

id_netscape_ce, id_netscape_ce_type, id_set_ce, id_set_ce_type, isDecoded

Constructor Summary

KeyUsageExtension()
Create a new extension with the appropriate OID type.

KeyUsageExtension(boolean critical)
Creates a new extension with no key usage flags set.

KeyUsageExtension(java.io.InputStream is)

KeyUsageExtension(int[] flags, boolean critical)
Creates a new extension with the given key usage flags set.

Method Summary

void	clearAllUsageFlags()
void	clearUsageFlag(int flag)
boolean[]	getKeyUsage()
boolean	hasUsageFlag(int flag) Returns whether or not the given key usage flag is set.
void	setUsageFlag(int flag) Sets the given key usage flag.
void	setUsageFlags(int[] flags)
java.lang.String	toString() Returns a string representation of this object.

Methods inherited from class oracle.security.crypto.cert.X509Extension

getCritical, getType, getValue, input, inputInstance, isRecognized, length, output, readExternal, setCritical, setValue, writeExternal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DIGITAL_SIGNATURE

public static final int DIGITAL_SIGNATURE

Key usage flag to be used in setUsageFlag(int).

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Constant Field Values

NON_REPUDIATION

public static final int NON_REPUDIATION

Key usage flag to be used in setUsageFlag(int).

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Constant Field Values

KEY_ENCIPHERMENT

public static final int KEY_ENCIPHERMENT

Key usage flag to be used in setUsageFlag(int).

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Constant Field Values

DATA_ENCIPHERMENT

public static final int DATA_ENCIPHERMENT

Key usage flag to be used in setUsageFlag(int).

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Constant Field Values

KEY_AGREEMENT

public static final int KEY_AGREEMENT

Key usage flag to be used in setUsageFlag(int).

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Constant Field Values

KEY_CERT_SIGN

public static final int KEY_CERT_SIGN

Key usage flag to be used in setUsageFlag(int).

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Constant Field Values

CRL_SIGN

public static final int CRL_SIGN

Key usage flag to be used in setUsageFlag(int).

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Constant Field Values

ENCIPHER_ONLY

public static final int ENCIPHER_ONLY

Key usage flag to be used in setUsageFlag(int).

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Constant Field Values

DECIPHER_ONLY

public static final int DECIPHER_ONLY

Key usage flag to be used in setUsageFlag(int).

See Also:

Constant Field Values

Constructor Detail

KeyUsageExtension

public KeyUsageExtension()

Create a new extension with the appropriate OID type.

Note: An object created using this constructor may not be in a valid state. This constructor is intended primarily for use in conjunction with the X509Extension.input(java.io.InputStream) method.

KeyUsageExtension

public KeyUsageExtension(boolean critical)

Creates a new extension with no key usage flags set.

Parameters:

critical - true if this extension is critical, false otherwise.

KeyUsageExtension

public KeyUsageExtension(int[] flags,
                         boolean critical)

Creates a new extension with the given key usage flags set.

Parameters:

flags - an array of usage flag constants defined in this class.

critical - true if this extension is critical, false otherwise.

KeyUsageExtension

public KeyUsageExtension(java.io.InputStream is)
                  throws java.io.IOException

Throws:

java.io.IOException

Method Detail

hasUsageFlag

public boolean hasUsageFlag(int flag)

Returns whether or not the given key usage flag is set.

Parameters:

flag - one of the key usage flag constants defined in this class.

Returns:

true if the flag is set, otherwise false.

setUsageFlag

public void setUsageFlag(int flag)

Sets the given key usage flag.

Parameters:

flag - one of the key usage flag constants defined in this class.

setUsageFlags

public void setUsageFlags(int[] flags)

clearUsageFlag

public void clearUsageFlag(int flag)

clearAllUsageFlags

public void clearAllUsageFlags()

getKeyUsage

public boolean[] getKeyUsage()

toString

public java.lang.String toString()

Description copied from class: X509Extension

Returns a string representation of this object.

Overrides:

toString in class X509Extension

Returns:

a string representation

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