org.nhindirect.policy.x509

Class KeyUsageExtensionField

java.lang.Object

org.nhindirect.policy.x509.AbstractX509Field<P>

org.nhindirect.policy.x509.AbstractTBSField<P>

org.nhindirect.policy.x509.AbstractExtensionField<Integer>

org.nhindirect.policy.x509.KeyUsageExtensionField

All Implemented Interfaces:

Serializable, LiteralPolicyExpression<Integer>, PolicyExpression, ReferencePolicyExpression<X509Certificate,Integer>, ExtensionField<Integer>, TBSField<Integer>, X509Field<Integer>

public class KeyUsageExtensionField
extends AbstractExtensionField<Integer>
implements ExtensionField<Integer>

Key usage extension field.

The policy value of this extension is returned as an integer that is a "logical or" combination of all key usage bits.
If the extension does not exist, the policy value returned by this class evaluates to 0.

Since:

1.0

Author:

Greg Meyer

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
KeyUsageExtensionField(boolean required) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
ExtensionIdentifier	getExtentionIdentifier() Gets the object identifier for the extension field.
void	injectReferenceValue(X509Certificate value) Injects the referenced value into the expressions.

Methods inherited from class org.nhindirect.policy.x509.AbstractExtensionField

getFieldName, isCritical, toString

Methods inherited from class org.nhindirect.policy.x509.AbstractTBSField

getX509FieldType

Methods inherited from class org.nhindirect.policy.x509.AbstractX509Field

getExpressionType, getPolicyExpressionReferenceType, getPolicyValue, isRequired, setRequired

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.nhindirect.policy.x509.ExtensionField

isCritical

Methods inherited from interface org.nhindirect.policy.x509.TBSField

getFieldName

Methods inherited from interface org.nhindirect.policy.x509.X509Field

getX509FieldType, isRequired, setRequired

Methods inherited from interface org.nhindirect.policy.ReferencePolicyExpression

getPolicyExpressionReferenceType

Methods inherited from interface org.nhindirect.policy.LiteralPolicyExpression

getPolicyValue

Methods inherited from interface org.nhindirect.policy.PolicyExpression

getExpressionType

Constructor Detail

KeyUsageExtensionField

public KeyUsageExtensionField(boolean required)

Constructor

Parameters:

required - Indicates if the field is required to be present in the certificate to be compliant with the policy.

Method Detail

injectReferenceValue

public void injectReferenceValue(X509Certificate value)
                          throws PolicyProcessException

Injects the referenced value into the expressions. The relevant accessible attribute of the reference object can be retrieved by calling the LiteralPolicyExpression.getPolicyValue() method.

Specified by:

injectReferenceValue in interface ReferencePolicyExpression<X509Certificate,Integer>

Parameters:

value - The reference value.

Throws:

PolicyProcessException - Thrown if the reference value cannot be successfully processed or the relevant accessible attribute cannot be retrieved from the value. For example, the X509 reference expressions may require an X509 attribute to be present in a certificate. If the required certificate attribute is not present, the this exception would be thrown.

getExtentionIdentifier

public ExtensionIdentifier getExtentionIdentifier()

Gets the object identifier for the extension field.

Specified by:

getExtentionIdentifier in interface ExtensionField<Integer>

Returns:

The object identifier for the extension field.