114 lines
3.9 KiB
Java
114 lines
3.9 KiB
Java
/* X509Extension.java --- X.509 Extension
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.security.cert;
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import java.util.Set;
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/**
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Public interface for the X.509 Extension.
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This is used for X.509 v3 Certificates and CRL v2 (Certificate
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Revocation Lists) for managing attributes assoicated with
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Certificates, for managing the hierarchy of certificates,
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and for managing the distribution of CRL. This extension
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format is used to define private extensions.
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Each extensions for a certificate or CRL must be marked
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either critical or non-critical. If the certificate/CRL
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system encounters a critical extension not recognized then
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it must reject the certificate. A non-critical extension
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may be just ignored if not recognized.
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The ASN.1 definition for this class is:
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Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension
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Extension ::= SEQUENCE {
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extnId OBJECT IDENTIFIER,
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critical BOOLEAN DEFAULT FALSE,
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extnValue OCTET STRING
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-- contains a DER encoding of a value
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-- of the type registered for use with
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-- the extnId object identifier value
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}
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@author Mark Benvenuto
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@since JDK 1.2
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*/
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public interface X509Extension
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{
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/**
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Returns true if the certificate contains a critical extension
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that is not supported.
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@return true if has unsupported extension, false otherwise
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*/
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public boolean hasUnsupportedCriticalExtension();
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/**
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Returns a set of the CRITICAL extension OIDs from the
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certificate/CRL that the object implementing this interface
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manages.
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@return A Set containing the OIDs. If there are no CRITICAL
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extensions or extensions at all this returns null.
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*/
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public Set getCriticalExtensionOIDs();
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/**
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Returns a set of the NON-CRITICAL extension OIDs from the
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certificate/CRL that the object implementing this interface
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manages.
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@return A Set containing the OIDs. If there are no NON-CRITICAL
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extensions or extensions at all this returns null.
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*/
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public Set getNonCriticalExtensionOIDs();
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/**
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Returns the DER encoded OCTET string for the specified
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extension value identified by a OID. The OID is a string
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of number separated by periods. Ex: 12.23.45.67
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*/
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public byte[] getExtensionValue(String oid);
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}
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