com.tencent.kona.sun.security.x509

Class SubjectKeyIdentifierExtension

java.lang.Object

com.tencent.kona.sun.security.x509.Extension

com.tencent.kona.sun.security.x509.SubjectKeyIdentifierExtension

All Implemented Interfaces:

com.tencent.kona.sun.security.util.DerEncoder, java.security.cert.Extension

public class SubjectKeyIdentifierExtension
extends Extension

Represent the Subject Key Identifier Extension. This extension, if present, provides a means of identifying the particular public key used in an application. This extension by default is marked non-critical.

Extensions are additional attributes which can be inserted in a X509 v3 certificate. For example a "Driving License Certificate" could have the driving license number as an extension.

Extensions are represented as a sequence of the extension identifier (Object Identifier), a boolean flag stating whether the extension is to be treated as being critical and the extension value itself (this is again a DER encoding of the extension value).

See Also:

Extension

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	NAME

Fields inherited from class com.tencent.kona.sun.security.x509.Extension

critical, extensionId, extensionValue

Constructor Summary

Constructors

Constructor and Description
SubjectKeyIdentifierExtension(java.lang.Boolean critical, java.lang.Object value) Create the extension from the passed DER encoded value.
SubjectKeyIdentifierExtension(byte[] octetString) Create a SubjectKeyIdentifierExtension with the passed octet string.

Method Summary

Modifier and Type	Method and Description
void	encode(com.tencent.kona.sun.security.util.DerOutputStream out) Write the extension to the OutputStream.
KeyIdentifier	getKeyIdentifier()
java.lang.String	getName() Return the name of this extension.
java.lang.String	toString() Returns a printable representation.

Methods inherited from class com.tencent.kona.sun.security.x509.Extension

encode, equals, getExtensionId, getExtensionValue, getId, getValue, hashCode, isCritical, newExtension

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final java.lang.String NAME

See Also:

Constant Field Values

Constructor Detail

SubjectKeyIdentifierExtension

public SubjectKeyIdentifierExtension(byte[] octetString)

Create a SubjectKeyIdentifierExtension with the passed octet string. The criticality is set to False.

Parameters:

octetString - the octet string identifying the key identifier.

SubjectKeyIdentifierExtension

public SubjectKeyIdentifierExtension(java.lang.Boolean critical,
                                     java.lang.Object value)
                              throws java.io.IOException

Create the extension from the passed DER encoded value.

Parameters:

critical - true if the extension is to be treated as critical.

value - an array of DER encoded bytes of the actual value.

Throws:

java.lang.ClassCastException - if value is not an array of bytes

java.io.IOException - on error.

Method Detail

toString

public java.lang.String toString()

Returns a printable representation.

Overrides:

toString in class Extension

encode

public void encode(com.tencent.kona.sun.security.util.DerOutputStream out)

Write the extension to the OutputStream.

Specified by:

encode in interface com.tencent.kona.sun.security.util.DerEncoder

Overrides:

encode in class Extension

Parameters:

out - the DerOutputStream to write the extension to.

getKeyIdentifier

public KeyIdentifier getKeyIdentifier()

getName

public java.lang.String getName()

Return the name of this extension.

Overrides:

getName in class Extension