javax.xml.crypto.dsig.keyinfo.KeyInfoFactory Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
*/
/*
* $Id$
*/
package javax.xml.crypto.dsig.keyinfo;
import java.math.BigInteger;
import java.security.KeyException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.PublicKey;
import java.security.Security;
import java.security.cert.X509CRL;
import java.util.List;
import javax.xml.crypto.MarshalException;
import javax.xml.crypto.NoSuchMechanismException;
import javax.xml.crypto.URIDereferencer;
import javax.xml.crypto.XMLStructure;
import javax.xml.crypto.dom.DOMStructure;
import javax.xml.crypto.dsig.*;
/**
* A factory for creating {@link KeyInfo} objects from scratch or for
* unmarshalling a KeyInfo object from a corresponding XML
* representation.
*
* Each instance of KeyInfoFactory supports a specific
* XML mechanism type. To create a KeyInfoFactory, call one of the
* static {@link #getInstance getInstance} methods, passing in the XML
* mechanism type desired, for example:
*
*
* KeyInfoFactory factory = KeyInfoFactory.getInstance("DOM");
*
*
* The objects that this factory produces will be based
* on DOM and abide by the DOM interoperability requirements as defined in the
*
* DOM Mechanism Requirements section of the API overview. See the
* Service
* Providers section of the API overview for a list of standard mechanism
* types.
*
*
KeyInfoFactory implementations are registered and loaded
* using the {@link java.security.Provider} mechanism.
* For example, a service provider that supports the
* DOM mechanism would be specified in the Provider subclass as:
*
* put("KeyInfoFactory.DOM", "org.example.DOMKeyInfoFactory");
*
*
* Also, the XMLStructures that are created by this factory
* may contain state specific to the KeyInfo and are not
* intended to be reusable.
*
*
An implementation MUST minimally support the default mechanism type: DOM.
*
*
Note that a caller must use the same KeyInfoFactory
* instance to create the XMLStructures of a particular
* KeyInfo object. The behavior is undefined if
* XMLStructures from different providers or different mechanism
* types are used together.
*
*
Concurrent Access
*
The static methods of this class are guaranteed to be thread-safe.
* Multiple threads may concurrently invoke the static methods defined in this
* class with no ill effects.
*
*
However, this is not true for the non-static methods defined by this
* class. Unless otherwise documented by a specific provider, threads that
* need to access a single KeyInfoFactory instance concurrently
* should synchronize amongst themselves and provide the necessary locking.
* Multiple threads each manipulating a different KeyInfoFactory
* instance need not synchronize.
*
* @author Sean Mullan
* @author JSR 105 Expert Group
*/
public abstract class KeyInfoFactory {
private String mechanismType;
private Provider provider;
/**
* Default constructor, for invocation by subclasses.
*/
protected KeyInfoFactory() {}
/**
* Returns a KeyInfoFactory that supports the
* specified XML processing mechanism and representation type (ex: "DOM").
*
*
This method uses the standard JCA provider lookup mechanism to
* locate and instantiate a KeyInfoFactory implementation of
* the desired mechanism type. It traverses the list of registered security
* Providers, starting with the most preferred
* Provider. A new KeyInfoFactory object
* from the first Provider that supports the specified
* mechanism is returned.
*
*
Note that the list of registered providers may be retrieved via
* the {@link Security#getProviders() Security.getProviders()} method.
*
* @param mechanismType the type of the XML processing mechanism and
* representation. See the Service
* Providers section of the API overview for a list of standard
* mechanism types.
* @return a new KeyInfoFactory
* @throws NullPointerException if mechanismType is
* null
* @throws NoSuchMechanismException if no Provider supports a
* KeyInfoFactory implementation for the specified mechanism
* @see Provider
*/
public static KeyInfoFactory getInstance(String mechanismType) {
if (mechanismType == null) {
throw new NullPointerException("mechanismType cannot be null");
}
return findInstance(mechanismType, null);
}
private static KeyInfoFactory findInstance(String mechanismType,
Provider provider) {
if (provider == null) {
provider = getProvider("KeyInfoFactory", mechanismType);
}
Provider.Service ps = provider.getService("KeyInfoFactory",
mechanismType);
if (ps == null) {
throw new NoSuchMechanismException("Cannot find " + mechanismType +
" mechanism type");
}
try {
KeyInfoFactory fac = (KeyInfoFactory)ps.newInstance(null);
fac.mechanismType = mechanismType;
fac.provider = provider;
return fac;
} catch (NoSuchAlgorithmException nsae) {
throw new NoSuchMechanismException("Cannot find " + mechanismType +
" mechanism type", nsae);
}
}
private static Provider getProvider(String engine, String mech) {
Provider[] providers = Security.getProviders(engine + "." + mech);
if (providers == null) {
throw new NoSuchMechanismException("Mechanism type " + mech +
" not available");
}
return providers[0];
}
/**
* Returns a KeyInfoFactory that supports the
* requested XML processing mechanism and representation type (ex: "DOM"),
* as supplied by the specified provider. Note that the specified
* Provider object does not have to be registered in the
* provider list.
*
* @param mechanismType the type of the XML processing mechanism and
* representation. See the Service
* Providers section of the API overview for a list of standard
* mechanism types.
* @param provider the Provider object
* @return a new KeyInfoFactory
* @throws NullPointerException if mechanismType or
* provider are null
* @throws NoSuchMechanismException if a KeyInfoFactory
* implementation for the specified mechanism is not available from the
* specified Provider object
* @see Provider
*/
public static KeyInfoFactory getInstance(String mechanismType,
Provider provider) {
if (mechanismType == null) {
throw new NullPointerException("mechanismType cannot be null");
} else if (provider == null) {
throw new NullPointerException("provider cannot be null");
}
return findInstance(mechanismType, provider);
}
/**
* Returns a KeyInfoFactory that supports the
* requested XML processing mechanism and representation type (ex: "DOM"),
* as supplied by the specified provider. The specified provider must be
* registered in the security provider list.
*
*
Note that the list of registered providers may be retrieved via
* the {@link Security#getProviders() Security.getProviders()} method.
*
* @param mechanismType the type of the XML processing mechanism and
* representation. See the Service
* Providers section of the API overview for a list of standard
* mechanism types.
* @param provider the string name of the provider
* @return a new KeyInfoFactory
* @throws NoSuchProviderException if the specified provider is not
* registered in the security provider list
* @throws NullPointerException if mechanismType or
* provider are null
* @throws NoSuchMechanismException if a KeyInfoFactory
* implementation for the specified mechanism is not available from the
* specified provider
* @see Provider
*/
public static KeyInfoFactory getInstance(String mechanismType,
String provider) throws NoSuchProviderException {
if (mechanismType == null) {
throw new NullPointerException("mechanismType cannot be null");
} else if (provider == null) {
throw new NullPointerException("provider cannot be null");
}
Provider prov = Security.getProvider(provider);
if (prov == null) {
throw new NoSuchProviderException("cannot find provider named "
+ provider);
}
return findInstance(mechanismType, prov);
}
/**
* Returns a KeyInfoFactory that supports the
* default XML processing mechanism and representation type ("DOM").
*
*
This method uses the standard JCA provider lookup mechanism to
* locate and instantiate a KeyInfoFactory implementation of
* the default mechanism type. It traverses the list of registered security
* Providers, starting with the most preferred
* Provider. A new KeyInfoFactory object
* from the first Provider that supports the DOM mechanism is
* returned.
*
*
Note that the list of registered providers may be retrieved via
* the {@link Security#getProviders() Security.getProviders()} method.
*
* @return a new KeyInfoFactory
* @throws NoSuchMechanismException if no Provider supports a
* KeyInfoFactory implementation for the DOM mechanism
* @see Provider
*/
public static KeyInfoFactory getInstance() {
return getInstance("DOM");
}
/**
* Returns the type of the XML processing mechanism and representation
* supported by this KeyInfoFactory (ex: "DOM")
*
* @return the XML processing mechanism type supported by this
* KeyInfoFactory
*/
public final String getMechanismType() {
return mechanismType;
}
/**
* Returns the provider of this KeyInfoFactory.
*
* @return the provider of this KeyInfoFactory
*/
public final Provider getProvider() {
return provider;
}
/**
* Creates a KeyInfo containing the specified list of
* key information types.
*
* @param content a list of one or more {@link XMLStructure}s representing
* key information types. The list is defensively copied to protect
* against subsequent modification.
* @return a KeyInfo
* @throws NullPointerException if content is null
* @throws IllegalArgumentException if content is empty
* @throws ClassCastException if content contains any entries
* that are not of type {@link XMLStructure}
*/
public abstract KeyInfo newKeyInfo(List content);
/**
* Creates a KeyInfo containing the specified list of key
* information types and optional id. The
* id parameter represents the value of an XML
* ID attribute and is useful for referencing
* the KeyInfo from other XML structures.
*
* @param content a list of one or more {@link XMLStructure}s representing
* key information types. The list is defensively copied to protect
* against subsequent modification.
* @param id the value of an XML ID (may be null)
* @return a KeyInfo
* @throws NullPointerException if content is null
* @throws IllegalArgumentException if content is empty
* @throws ClassCastException if content contains any entries
* that are not of type {@link XMLStructure}
*/
public abstract KeyInfo newKeyInfo(List content, String id);
/**
* Creates a KeyName from the specified name.
*
* @param name the name that identifies the key
* @return a KeyName
* @throws NullPointerException if name is null
*/
public abstract KeyName newKeyName(String name);
/**
* Creates a KeyValue from the specified public key.
*
* @param key the public key
* @return a KeyValue
* @throws KeyException if the key's algorithm is not
* recognized or supported by this KeyInfoFactory
* @throws NullPointerException if key is null
*/
public abstract KeyValue newKeyValue(PublicKey key) throws KeyException;
/**
* Creates a PGPData from the specified PGP public key
* identifier.
*
* @param keyId a PGP public key identifier as defined in RFC 2440, section 11.2.
* The array is cloned to protect against subsequent modification.
* @return a PGPData
* @throws NullPointerException if keyId is null
* @throws IllegalArgumentException if the key id is not in the correct
* format
*/
public abstract PGPData newPGPData(byte[] keyId);
/**
* Creates a PGPData from the specified PGP public key
* identifier, and optional key material packet and list of external
* elements.
*
* @param keyId a PGP public key identifier as defined in RFC 2440, section 11.2.
* The array is cloned to protect against subsequent modification.
* @param keyPacket a PGP key material packet as defined in RFC 2440, section 5.5.
* The array is cloned to protect against subsequent modification. May
* be null.
* @param other a list of {@link XMLStructure}s representing elements from
* an external namespace. The list is defensively copied to protect
* against subsequent modification. May be null or empty.
* @return a PGPData
* @throws NullPointerException if keyId is null
* @throws IllegalArgumentException if the keyId or
* keyPacket is not in the correct format. For
* keyPacket, the format of the packet header is
* checked and the tag is verified that it is of type key material. The
* contents and format of the packet body are not checked.
* @throws ClassCastException if other contains any
* entries that are not of type {@link XMLStructure}
*/
public abstract PGPData newPGPData(byte[] keyId, byte[] keyPacket,
List other);
/**
* Creates a PGPData from the specified PGP key material
* packet and optional list of external elements.
*
* @param keyPacket a PGP key material packet as defined in RFC 2440, section 5.5.
* The array is cloned to protect against subsequent modification.
* @param other a list of {@link XMLStructure}s representing elements from
* an external namespace. The list is defensively copied to protect
* against subsequent modification. May be null or empty.
* @return a PGPData
* @throws NullPointerException if keyPacket is
* null
* @throws IllegalArgumentException if keyPacket is not in the
* correct format. For keyPacket, the format of the packet
* header is checked and the tag is verified that it is of type key
* material. The contents and format of the packet body are not checked.
* @throws ClassCastException if other contains any
* entries that are not of type {@link XMLStructure}
*/
public abstract PGPData newPGPData(byte[] keyPacket, List other);
/**
* Creates a RetrievalMethod from the specified URI.
*
* @param uri the URI that identifies the KeyInfo information
* to be retrieved
* @return a RetrievalMethod
* @throws NullPointerException if uri is null
* @throws IllegalArgumentException if uri is not RFC 2396
* compliant
*/
public abstract RetrievalMethod newRetrievalMethod(String uri);
/**
* Creates a RetrievalMethod from the specified parameters.
*
* @param uri the URI that identifies the KeyInfo information
* to be retrieved
* @param type a URI that identifies the type of KeyInfo
* information to be retrieved (may be null)
* @param transforms a list of {@link Transform}s. The list is defensively
* copied to protect against subsequent modification. May be
* null or empty.
* @return a RetrievalMethod
* @throws NullPointerException if uri is null
* @throws IllegalArgumentException if uri is not RFC 2396
* compliant
* @throws ClassCastException if transforms contains any
* entries that are not of type {@link Transform}
*/
public abstract RetrievalMethod newRetrievalMethod(String uri, String type,
List transforms);
/**
* Creates a X509Data containing the specified list of
* X.509 content.
*
* @param content a list of one or more X.509 content types. Valid types are
* {@link String} (subject names), byte[] (subject key ids),
* {@link java.security.cert.X509Certificate}, {@link X509CRL},
* or {@link XMLStructure} ({@link X509IssuerSerial}
* objects or elements from an external namespace). Subject names are
* distinguished names in RFC 2253 String format. Implementations MUST
* support the attribute type keywords defined in RFC 2253 (CN, L, ST,
* O, OU, C, STREET, DC and UID). Implementations MAY support additional
* keywords. The list is defensively copied to protect against
* subsequent modification.
* @return a X509Data
* @throws NullPointerException if content is null
* @throws IllegalArgumentException if content is empty, or
* if a subject name is not RFC 2253 compliant or one of the attribute
* type keywords is not recognized.
* @throws ClassCastException if content contains any entries
* that are not of one of the valid types mentioned above
*/
public abstract X509Data newX509Data(List content);
/**
* Creates an X509IssuerSerial from the specified X.500 issuer
* distinguished name and serial number.
*
* @param issuerName the issuer's distinguished name in RFC 2253 String
* format. Implementations MUST support the attribute type keywords
* defined in RFC 2253 (CN, L, ST, O, OU, C, STREET, DC and UID).
* Implementations MAY support additional keywords.
* @param serialNumber the serial number
* @return an X509IssuerSerial
* @throws NullPointerException if issuerName or
* serialNumber are null
* @throws IllegalArgumentException if the issuer name is not RFC 2253
* compliant or one of the attribute type keywords is not recognized.
*/
public abstract X509IssuerSerial newX509IssuerSerial
(String issuerName, BigInteger serialNumber);
/**
* Indicates whether a specified feature is supported.
*
* @param feature the feature name (as an absolute URI)
* @return true if the specified feature is supported,
* false otherwise
* @throws NullPointerException if feature is null
*/
public abstract boolean isFeatureSupported(String feature);
/**
* Returns a reference to the URIDereferencer that is used by
* default to dereference URIs in {@link RetrievalMethod} objects.
*
* @return a reference to the default URIDereferencer
*/
public abstract URIDereferencer getURIDereferencer();
/**
* Unmarshals a new KeyInfo instance from a
* mechanism-specific XMLStructure (ex: {@link DOMStructure})
* instance.
*
* @param xmlStructure a mechanism-specific XML structure from which to
* unmarshal the keyinfo from
* @return the KeyInfo
* @throws NullPointerException if xmlStructure is
* null
* @throws ClassCastException if the type of xmlStructure is
* inappropriate for this factory
* @throws MarshalException if an unrecoverable exception occurs during
* unmarshalling
*/
public abstract KeyInfo unmarshalKeyInfo(XMLStructure xmlStructure)
throws MarshalException;
}