org.bouncycastle.jce.cert
Class PolicyQualifierInfo

java.lang.Object
  |
  +--org.bouncycastle.jce.cert.PolicyQualifierInfo

public final class PolicyQualifierInfo

extends java.lang.Object

An immutable policy qualifier represented by the ASN.1 PolicyQualifierInfo structure.

The ASN.1 definition is as follows:

PolicyQualifierInfo ::= SEQUENCE { policyQualifierId PolicyQualifierId, qualifier ANY DEFINED BY policyQualifierId }

A certificate policies extension, if present in an X.509 version 3 certificate, contains a sequence of one or more policy information terms, each of which consists of an object identifier (OID) and optional qualifiers. In an end-entity certificate, these policy information terms indicate the policy under which the certificate has been issued and the purposes for which the certificate may be used. In a CA certificate, these policy information terms limit the set of policies for certification paths which include this certificate.

A Set of PolicyQualifierInfo objects are returned by the PolicyNode.getPolicyQualifiers method. This allows applications with specific policy requirements to process and validate each policy qualifier. Applications that need to process policy qualifiers should explicitly set the policyQualifiersRejected flag to false (by calling the PKIXParameters.setPolicyQualifiersRejected method) before validating a certification path.

Note that the PKIX certification path validation algorithm specifies that any policy qualifier in a certificate policies extension that is marked critical must be processed and validated. Otherwise the certification path must be rejected. If the policyQualifiersRejected flag is set to false, it is up to the application to validate all policy qualifiers in this manner in order to be PKIX compliant.

Concurrent Access

All PolicyQualifierInfo objects must be immutable and thread-safe. That is, multiple threads may concurrently invoke the methods defined in this class on a single PolicyQualifierInfo object (or more than one) with no ill effects. Requiring PolicyQualifierInfo objects to be immutable and thread-safe allows them to be passed around to various pieces of code without worrying about coordinating access.

Uses ASN1InputStream, ASN1Sequence, ASN1ObjectIdentifier, DEROutputStream, ASN1Object

Constructor Summary

PolicyQualifierInfo(byte[] encoded)
Creates an instance of PolicyQualifierInfo from the encoded bytes.

Method Summary

byte[]	getEncoded() Returns the ASN.1 DER encoded form of this PolicyQualifierInfo.
byte[]	getPolicyQualifier() Returns the ASN.1 DER encoded form of the qualifier field of this PolicyQualifierInfo.
java.lang.String	getPolicyQualifierId() Returns the policyQualifierId field of this PolicyQualifierInfo.
java.lang.String	toString() Return a printable representation of this PolicyQualifierInfo. Uses ASN1InputStream, ASN1Object

Methods inherited from class java.lang.Object

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

Constructor Detail

PolicyQualifierInfo

public PolicyQualifierInfo(byte[] encoded)
                    throws java.io.IOException

Creates an instance of PolicyQualifierInfo from the encoded bytes. The encoded byte array is copied on construction.

Uses ASN1InputStream, ASN1Sequence, ASN1ObjectIdentifier and DEROutputStream

Parameters:

encoded - a byte array containing the qualifier in DER encoding

Throws:

java.io.IOException - thrown if the byte array does not represent a valid and parsable policy qualifier

Method Detail

getPolicyQualifierId

public java.lang.String getPolicyQualifierId()

Returns the policyQualifierId field of this PolicyQualifierInfo. The policyQualifierId is an Object Identifier (OID) represented by a set of nonnegative integers separated by periods.

Returns:

the OID (never null)

getEncoded

public byte[] getEncoded()

Returns the ASN.1 DER encoded form of this PolicyQualifierInfo.

Returns:

the ASN.1 DER encoded bytes (never null). Note that a copy is returned, so the data is cloned each time this method is called.

getPolicyQualifier

public byte[] getPolicyQualifier()

Returns the ASN.1 DER encoded form of the qualifier field of this PolicyQualifierInfo.

Returns:

the ASN.1 DER encoded bytes of the qualifier field. Note that a copy is returned, so the data is cloned each time this method is called.

toString

public java.lang.String toString()

Return a printable representation of this PolicyQualifierInfo.

Uses ASN1InputStream, ASN1Object

Overrides:

toString in class java.lang.Object

Returns:

a String describing the contents of this PolicyQualifierInfo