feat(jdk8): move files to new folder to avoid resources compiled.
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370
jdkSrc/jdk8/org/ietf/jgss/GSSCredential.java
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370
jdkSrc/jdk8/org/ietf/jgss/GSSCredential.java
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/*
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* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.ietf.jgss;
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/**
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* This interface encapsulates the GSS-API credentials for an entity. A
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* credential contains all the necessary cryptographic information to
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* enable the creation of a context on behalf of the entity that it
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* represents. It may contain multiple, distinct, mechanism specific
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* credential elements, each containing information for a specific
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* security mechanism, but all referring to the same entity. A credential
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* may be used to perform context initiation, acceptance, or both.<p>
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*
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* Credentials are instantiated using one of the
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* <code>createCredential</code> methods in the {@link GSSManager
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* GSSManager} class. GSS-API credential creation is not
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* intended to provide a "login to the network" function, as such a
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* function would involve the creation of new credentials rather than
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* merely acquiring a handle to existing credentials. The
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* <a href=package-summary.html#useSubjectCredsOnly>section on credential
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* acquisition</a> in the package level description describes
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* how existing credentials are acquired in the Java platform. GSS-API
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* implementations must impose a local access-control policy on callers to
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* prevent unauthorized callers from acquiring credentials to which they
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* are not entitled. <p>
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*
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* Applications will create a credential object passing the desired
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* parameters. The application can then use the query methods to obtain
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* specific information about the instantiated credential object.
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* When the credential is no longer needed, the application should call
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* the {@link #dispose() dispose} method to release any resources held by
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* the credential object and to destroy any cryptographically sensitive
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* information.<p>
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*
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* This example code demonstrates the creation of a GSSCredential
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* implementation for a specific entity, querying of its fields, and its
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* release when it is no longer needed:<p>
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* <pre>
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* GSSManager manager = GSSManager.getInstance();
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*
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* // start by creating a name object for the entity
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* GSSName name = manager.createName("myusername", GSSName.NT_USER_NAME);
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*
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* // now acquire credentials for the entity
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* GSSCredential cred = manager.createCredential(name,
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* GSSCredential.ACCEPT_ONLY);
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*
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* // display credential information - name, remaining lifetime,
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* // and the mechanisms it has been acquired over
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* System.out.println(cred.getName().toString());
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* System.out.println(cred.getRemainingLifetime());
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*
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* Oid [] mechs = cred.getMechs();
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* if (mechs != null) {
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* for (int i = 0; i < mechs.length; i++)
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* System.out.println(mechs[i].toString());
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* }
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*
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* // release system resources held by the credential
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* cred.dispose();
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* </pre>
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*
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* @see GSSManager#createCredential(int)
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* @see GSSManager#createCredential(GSSName, int, Oid, int)
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* @see GSSManager#createCredential(GSSName, int, Oid[], int)
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* @see #dispose()
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*
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* @author Mayank Upadhyay
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* @since 1.4
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*/
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public interface GSSCredential extends Cloneable{
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/**
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* Credential usage flag requesting that it be usable
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* for both context initiation and acceptance.
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*
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*/
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public static final int INITIATE_AND_ACCEPT = 0;
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/**
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* Credential usage flag requesting that it be usable
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* for context initiation only.
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*
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*/
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public static final int INITIATE_ONLY = 1;
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/**
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* Credential usage flag requesting that it be usable
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* for context acceptance only.
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*
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*/
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public static final int ACCEPT_ONLY = 2;
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/**
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* A lifetime constant representing the default credential lifetime. This
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* value it set to 0.
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*/
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public static final int DEFAULT_LIFETIME = 0;
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/**
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* A lifetime constant representing indefinite credential lifetime.
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* This value must is set to the maximum integer value in Java -
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* {@link java.lang.Integer#MAX_VALUE Integer.MAX_VALUE}.
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*/
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public static final int INDEFINITE_LIFETIME = Integer.MAX_VALUE;
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/**
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* Releases any sensitive information that the GSSCredential object may
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* be containing. Applications should call this method as soon as the
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* credential is no longer needed to minimize the time any sensitive
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* information is maintained.
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public void dispose() throws GSSException;
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/**
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* Retrieves the name of the entity that the credential asserts.
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*
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* @return a GSSName representing the entity
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public GSSName getName() throws GSSException;
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/**
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* Retrieves a Mechanism Name of the entity that the credential
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* asserts. This is equivalent to calling {@link
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* GSSName#canonicalize(Oid) canonicalize} on the value returned by
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* the other form of {@link #getName() getName}.
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*
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* @param mech the Oid of the mechanism for which the Mechanism Name
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* should be returned.
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* @return a GSSName representing the entity canonicalized for the
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* desired mechanism
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#BAD_MECH GSSException.BAD_MECH},
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public GSSName getName(Oid mech) throws GSSException;
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/**
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* Returns the remaining lifetime in seconds for a credential. The
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* remaining lifetime is the minimum lifetime amongst all of the underlying
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* mechanism specific credential elements.
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*
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* @return the minimum remaining lifetime in seconds for this
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* credential. A return value of {@link #INDEFINITE_LIFETIME
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* INDEFINITE_LIFETIME} indicates that the credential does
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* not expire. A return value of 0 indicates that the credential is
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* already expired.
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*
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* @see #getRemainingInitLifetime(Oid)
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* @see #getRemainingAcceptLifetime(Oid)
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public int getRemainingLifetime() throws GSSException;
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/**
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* Returns the lifetime in seconds for the credential to remain capable
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* of initiating security contexts using the specified mechanism. This
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* method queries the initiator credential element that belongs to the
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* specified mechanism.
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*
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* @return the number of seconds remaining in the life of this credential
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* element. A return value of {@link #INDEFINITE_LIFETIME
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* INDEFINITE_LIFETIME} indicates that the credential element does not
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* expire. A return value of 0 indicates that the credential element is
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* already expired.
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*
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* @param mech the Oid of the mechanism whose initiator credential element
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* should be queried.
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#BAD_MECH GSSException.BAD_MECH},
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public int getRemainingInitLifetime(Oid mech) throws GSSException;
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/**
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* Returns the lifetime in seconds for the credential to remain capable
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* of accepting security contexts using the specified mechanism. This
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* method queries the acceptor credential element that belongs to the
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* specified mechanism.
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*
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* @return the number of seconds remaining in the life of this credential
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* element. A return value of {@link #INDEFINITE_LIFETIME
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* INDEFINITE_LIFETIME} indicates that the credential element does not
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* expire. A return value of 0 indicates that the credential element is
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* already expired.
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*
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* @param mech the Oid of the mechanism whose acceptor credential element
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* should be queried.
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#BAD_MECH GSSException.BAD_MECH},
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public int getRemainingAcceptLifetime(Oid mech) throws GSSException;
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/**
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* Returns the credential usage mode. In other words, it
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* tells us if this credential can be used for initiating or accepting
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* security contexts. It does not tell us which mechanism(s) has to be
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* used in order to do so. It is expected that an application will allow
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* the GSS-API to pick a default mechanism after calling this method.
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*
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* @return The return value will be one of {@link #INITIATE_ONLY
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* INITIATE_ONLY}, {@link #ACCEPT_ONLY ACCEPT_ONLY}, and {@link
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* #INITIATE_AND_ACCEPT INITIATE_AND_ACCEPT}.
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public int getUsage() throws GSSException;
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/**
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* Returns the credential usage mode for a specific mechanism. In other
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* words, it tells us if this credential can be used
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* for initiating or accepting security contexts with a given underlying
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* mechanism.
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*
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* @return The return value will be one of {@link #INITIATE_ONLY
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* INITIATE_ONLY}, {@link #ACCEPT_ONLY ACCEPT_ONLY}, and {@link
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* #INITIATE_AND_ACCEPT INITIATE_AND_ACCEPT}.
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* @param mech the Oid of the mechanism whose credentials usage mode is
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* to be determined.
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#BAD_MECH GSSException.BAD_MECH},
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public int getUsage(Oid mech) throws GSSException;
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/**
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* Returns a list of mechanisms supported by this credential. It does
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* not tell us which ones can be used to initiate
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* contexts and which ones can be used to accept contexts. The
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* application must call the {@link #getUsage(Oid) getUsage} method with
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* each of the returned Oid's to determine the possible modes of
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* usage.
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*
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* @return an array of Oid's corresponding to the supported mechanisms.
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public Oid[] getMechs() throws GSSException;
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/**
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* Adds a mechanism specific credential-element to an existing
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* credential. This method allows the construction of credentials, one
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* mechanism at a time.<p>
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*
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* This routine is envisioned to be used mainly by context acceptors
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* during the creation of acceptor credentials which are to be used
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* with a variety of clients using different security mechanisms.<p>
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*
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* This routine adds the new credential element "in-place". To add the
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* element in a new credential, first call <code>clone</code> to obtain a
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* copy of this credential, then call its <code>add</code> method.<p>
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*
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* As always, GSS-API implementations must impose a local access-control
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* policy on callers to prevent unauthorized callers from acquiring
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* credentials to which they are not entitled.
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*
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* Non-default values for initLifetime and acceptLifetime cannot always
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* be honored by the underlying mechanisms, thus callers should be
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* prepared to call {@link #getRemainingInitLifetime(Oid)
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* getRemainingInitLifetime} and {@link #getRemainingAcceptLifetime(Oid)
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* getRemainingAcceptLifetime} on the credential.
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*
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* @param name the name of the principal for whom this credential is to
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* be acquired. Use <code>null</code> to specify the default
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* principal.
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* @param initLifetime the number of seconds that the credential element
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* should remain valid for initiating of security contexts. Use {@link
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* GSSCredential#INDEFINITE_LIFETIME GSSCredential.INDEFINITE_LIFETIME}
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* to request that the credentials have the maximum permitted lifetime
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* for this. Use {@link GSSCredential#DEFAULT_LIFETIME
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* GSSCredential.DEFAULT_LIFETIME} to request default credential lifetime
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* for this.
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* @param acceptLifetime the number of seconds that the credential
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* element should remain valid for accepting security contexts. Use {@link
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* GSSCredential#INDEFINITE_LIFETIME GSSCredential.INDEFINITE_LIFETIME}
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* to request that the credentials have the maximum permitted lifetime
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* for this. Use {@link GSSCredential#DEFAULT_LIFETIME
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* GSSCredential.DEFAULT_LIFETIME} to request default credential lifetime
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* for this.
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* @param mech the mechanism over which the credential is to be acquired.
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* @param usage the usage mode that this credential
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* element should add to the credential. The value
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* of this parameter must be one of:
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* {@link #INITIATE_AND_ACCEPT INITIATE_AND_ACCEPT},
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* {@link #ACCEPT_ONLY ACCEPT_ONLY}, and
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* {@link #INITIATE_ONLY INITIATE_ONLY}.
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*
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* @throws GSSException containing the following
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* major error codes:
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* {@link GSSException#DUPLICATE_ELEMENT
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* GSSException.DUPLICATE_ELEMENT},
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* {@link GSSException#BAD_MECH GSSException.BAD_MECH},
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* {@link GSSException#BAD_NAMETYPE GSSException.BAD_NAMETYPE},
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* {@link GSSException#NO_CRED GSSException.NO_CRED},
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* {@link GSSException#CREDENTIALS_EXPIRED
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* GSSException.CREDENTIALS_EXPIRED},
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* {@link GSSException#FAILURE GSSException.FAILURE}
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*/
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public void add(GSSName name, int initLifetime, int acceptLifetime,
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Oid mech, int usage) throws GSSException;
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/**
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* Tests if this GSSCredential asserts the same entity as the supplied
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* object. The two credentials must be acquired over the same
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* mechanisms and must refer to the same principal.
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*
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* @return <code>true</code> if the two GSSCredentials assert the same
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* entity; <code>false</code> otherwise.
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* @param another another GSSCredential for comparison to this one
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*/
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public boolean equals(Object another);
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/**
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* Returns a hashcode value for this GSSCredential.
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*
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* @return a hashCode value
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*/
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public int hashCode();
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}
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Block a user